]> git.djapps.eu Git - pkg/ggml/sources/llama.cpp/commitdiff
ggml WebGPU: add support for quantization types (#15440)
authorReese Levine <redacted>
Fri, 22 Aug 2025 18:28:03 +0000 (11:28 -0700)
committerGitHub <redacted>
Fri, 22 Aug 2025 18:28:03 +0000 (11:28 -0700)
* Begin work on set_rows

* Work on set rows

* Add error buffers for reporting unsupported SET_ROWS indices

* Remove extra comments

* Work on templating for different types in shaders

* Work on shader type generation

* Working q4_0 mul_mat and some templating for different types

* Add q4_0_f16 matmul and fix device init

* Add matmul support for basic quantization types

* Add q2_k and q3_k quantization

* Add rest of k-quants

* Get firt i-quant working

* Closer to supporting all i-quants

* Support rest of i-quants

* Cleanup code

* Fix python formatting

* debug

* Bugfix for memset

* Add padding to end of buffers on creation

* Simplify bit-shifting

* Update usage of StringView

ggml/src/ggml-webgpu/CMakeLists.txt
ggml/src/ggml-webgpu/ggml-webgpu.cpp
ggml/src/ggml-webgpu/wgsl-shaders/embed_wgsl.py
ggml/src/ggml-webgpu/wgsl-shaders/memset.wgsl
ggml/src/ggml-webgpu/wgsl-shaders/mul_mat.tmpl.wgsl [new file with mode: 0644]
ggml/src/ggml-webgpu/wgsl-shaders/mul_mat.wgsl [deleted file]

index 79ef68b85a47793530d6b9ae029b8139b2bdac5d..78a985a4d167a3f4f3955adf33299181831ffbfa 100644 (file)
@@ -20,8 +20,8 @@ add_custom_command(
     COMMAND ${CMAKE_COMMAND} -E make_directory ${SHADER_OUTPUT_DIR}
     COMMAND ${CMAKE_COMMAND} -E env PYTHONIOENCODING=utf-8
         ${Python3_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/wgsl-shaders/embed_wgsl.py
-            --input "${SHADER_DIR}"
-            --output "${SHADER_HEADER}"
+            --input_dir "${SHADER_DIR}"
+            --output_file "${SHADER_HEADER}"
     DEPENDS ${WGSL_SHADER_FILES} ${CMAKE_CURRENT_SOURCE_DIR}/wgsl-shaders/embed_wgsl.py
     VERBATIM
 )
index ba1addc8d9f2901ab1ebcf41020caea88f6bdc8a..32f1e304e1e6334b1c4ffa934f8f05c3fa20a393 100644 (file)
@@ -118,13 +118,11 @@ struct webgpu_context_struct {
 
     std::recursive_mutex mutex;
 
-    bool device_init = false;
-
     webgpu_buf_pool param_buf_pool;
     webgpu_buf_pool set_rows_error_buf_pool;
 
     wgpu::ComputePipeline memset_pipeline;
-    wgpu::ComputePipeline mul_mat_pipeline;
+    wgpu::ComputePipeline mul_mat_pipeline[30][2];
     wgpu::ComputePipeline set_rows_pipeline;
     wgpu::ComputePipeline cpy_pipeline;
 
@@ -238,7 +236,7 @@ static void ggml_backend_webgpu_wait_on_submission(webgpu_context & ctx) {
                                   wgpu::CallbackMode::AllowSpontaneous,
                                   [](wgpu::QueueWorkDoneStatus status, wgpu::StringView message) {
                                       if (status != wgpu::QueueWorkDoneStatus::Success) {
-                                          GGML_LOG_ERROR("ggml_webgpu: Failed to submit commands: %s\n", message.data);
+                                          GGML_LOG_ERROR("ggml_webgpu: Failed to submit commands: %s\n", std::string(message).c_str());
                                       }
                                   }),
                               UINT64_MAX);
@@ -278,7 +276,7 @@ static void ggml_backend_webgpu_submit_queue(webgpu_context & ctx) {
         wgpu::CallbackMode::AllowSpontaneous,
         [ctx, staged_param_bufs](wgpu::QueueWorkDoneStatus status, wgpu::StringView message) {
             if (status != wgpu::QueueWorkDoneStatus::Success) {
-                GGML_LOG_ERROR("ggml_webgpu: Failed to submit commands: %s\n", message.data);
+                GGML_LOG_ERROR("ggml_webgpu: Failed to submit commands: %s\n", std::string(message).c_str());
             }
             // Free the staged buffers
             ctx->param_buf_pool.free_bufs(staged_param_bufs);
@@ -294,7 +292,7 @@ static void ggml_backend_webgpu_submit_queue(webgpu_context & ctx) {
             wgpu::CallbackMode::AllowSpontaneous,
             [ctx, error_bufs](wgpu::MapAsyncStatus status, wgpu::StringView message) {
                 if (status != wgpu::MapAsyncStatus::Success) {
-                    GGML_LOG_ERROR("ggml_webgpu: Failed to map error buffer: %s\n", message.data);
+                    GGML_LOG_ERROR("ggml_webgpu: Failed to map error buffer: %s\n", std::string(message).c_str());
                 } else {
                     const uint32_t * error_data = (const uint32_t *) error_bufs.host_buf.GetConstMappedRange();
                     if (*error_data) {
@@ -331,6 +329,7 @@ static void ggml_backend_webgpu_map_buffer(webgpu_context & ctx,
 // To use, add a bind group entry to the setup for the shader you are debugging, add the buffer and
 // debug statements in the shader, and then call this function after encoding the commands and submitting them.
 static void ggml_backend_webgpu_debug(webgpu_context & ctx) {
+    ggml_backend_webgpu_submit_queue(ctx);
     wgpu::CommandEncoder encoder = ctx->device.CreateCommandEncoder();
     encoder.CopyBufferToBuffer(ctx->debug_dev_buf, 0, ctx->debug_host_buf, 0, ctx->debug_host_buf.GetSize());
     wgpu::CommandBuffer commands = encoder.Finish();
@@ -421,15 +420,6 @@ static void ggml_backend_webgpu_buffer_memset(webgpu_context & ctx,
     ggml_backend_webgpu_build_and_enqueue(ctx, ctx->memset_pipeline, params, entries, wg_x, true);
 }
 
-static size_t ggml_backend_webgpu_tensor_offset(const ggml_tensor * tensor) {
-    return webgpu_tensor_offset(tensor) + tensor->view_offs;
-}
-
-static wgpu::Buffer ggml_backend_webgpu_tensor_buf(const ggml_tensor * tensor) {
-    ggml_backend_webgpu_buffer_context * ctx = (ggml_backend_webgpu_buffer_context *) tensor->buffer->context;
-    return ctx->buffer;
-}
-
 /** End WebGPU Actions */
 
 /** GGML Backend Interface */
@@ -447,19 +437,36 @@ static void ggml_backend_webgpu_free(ggml_backend_t backend) {
     GGML_UNUSED(ctx);
 }
 
+static size_t ggml_webgpu_tensor_offset(const ggml_tensor * tensor) {
+    return webgpu_tensor_offset(tensor) + tensor->view_offs;
+}
+
+static wgpu::Buffer ggml_webgpu_tensor_buf(const ggml_tensor * tensor) {
+    ggml_backend_webgpu_buffer_context * ctx = (ggml_backend_webgpu_buffer_context *) tensor->buffer->context;
+    return ctx->buffer;
+}
+
+static size_t ggml_webgpu_tensor_misalignment(webgpu_context & ctx, ggml_tensor * t) {
+    size_t offset = ggml_webgpu_tensor_offset(t);
+    return offset & (ctx->limits.minStorageBufferOffsetAlignment - 1);
+}
+
+static size_t ggml_webgpu_tensor_align_offset(webgpu_context & ctx, ggml_tensor * t) {
+    size_t offset = ggml_webgpu_tensor_offset(t);
+    return offset & ~(ctx->limits.minStorageBufferOffsetAlignment - 1);
+}
+
+static size_t ggml_webgpu_tensor_binding_size(webgpu_context & ctx, ggml_tensor * t) {
+    return (ggml_nbytes(t) + ggml_webgpu_tensor_misalignment(ctx, t) + WEBGPU_STORAGE_BUF_BINDING_MULT - 1) &
+           ~(WEBGPU_STORAGE_BUF_BINDING_MULT - 1);
+}
+
 static void ggml_webgpu_cpy(webgpu_context & ctx, ggml_tensor * src, ggml_tensor * dst) {
-    size_t src_offset       = ggml_backend_webgpu_tensor_offset(src);
-    // assumes power of 2 offset alignment
-    size_t src_misalignment = src_offset & (ctx->limits.minStorageBufferOffsetAlignment - 1);
-    // align to minimum offset alignment
-    src_offset &= ~(ctx->limits.minStorageBufferOffsetAlignment - 1);
-    size_t dst_offset       = ggml_backend_webgpu_tensor_offset(dst);
-    size_t dst_misalignment = dst_offset & (ctx->limits.minStorageBufferOffsetAlignment - 1);
-    dst_offset &= ~(ctx->limits.minStorageBufferOffsetAlignment - 1);
-    uint32_t              ne     = (uint32_t) ggml_nelements(dst);
+    uint32_t ne = (uint32_t) ggml_nelements(dst);
+
     std::vector<uint32_t> params = { ne,
-                                     (uint32_t) (src_misalignment / ggml_type_size(src->type)),
-                                     (uint32_t) (dst_misalignment / ggml_type_size(dst->type)),
+                                     (uint32_t) (ggml_webgpu_tensor_misalignment(ctx, src) / ggml_type_size(src->type)),
+                                     (uint32_t) (ggml_webgpu_tensor_misalignment(ctx, dst) / ggml_type_size(dst->type)),
                                      // Convert byte-strides to element-strides
                                      (uint32_t) (src->nb[0] / ggml_type_size(src->type)),
                                      (uint32_t) (src->nb[1] / ggml_type_size(src->type)),
@@ -477,15 +484,13 @@ static void ggml_webgpu_cpy(webgpu_context & ctx, ggml_tensor * src, ggml_tensor
 
     std::vector<wgpu::BindGroupEntry> entries = {
         { .binding = 0,
-         .buffer  = ggml_backend_webgpu_tensor_buf(src),
-         .offset  = src_offset,
-         .size    = (ggml_nbytes(src) + src_misalignment + WEBGPU_STORAGE_BUF_BINDING_MULT - 1) &
-                  ~(WEBGPU_STORAGE_BUF_BINDING_MULT - 1) },
+         .buffer  = ggml_webgpu_tensor_buf(src),
+         .offset  = ggml_webgpu_tensor_align_offset(ctx, src),
+         .size    = ggml_webgpu_tensor_binding_size(ctx, src) },
         { .binding = 1,
-         .buffer  = ggml_backend_webgpu_tensor_buf(dst),
-         .offset  = dst_offset,
-         .size    = (ggml_nbytes(dst) + dst_misalignment + WEBGPU_STORAGE_BUF_BINDING_MULT - 1) &
-                  ~(WEBGPU_STORAGE_BUF_BINDING_MULT - 1) }
+         .buffer  = ggml_webgpu_tensor_buf(dst),
+         .offset  = ggml_webgpu_tensor_align_offset(ctx, dst),
+         .size    = ggml_webgpu_tensor_binding_size(ctx, dst) }
     };
 
     size_t   max_wg_size = ctx->limits.maxComputeWorkgroupSizeX;
@@ -504,21 +509,9 @@ static void ggml_webgpu_set_rows(webgpu_context & ctx, ggml_tensor * src, ggml_t
         error_bufs.host_buf.Unmap();
     }
 
-    size_t src_offset       = ggml_backend_webgpu_tensor_offset(src);
-    // assumes power of 2 offset alignment
-    size_t src_misalignment = src_offset & (ctx->limits.minStorageBufferOffsetAlignment - 1);
-    // align to minimum offset alignment
-    src_offset &= ~(ctx->limits.minStorageBufferOffsetAlignment - 1);
-    size_t idx_offset       = ggml_backend_webgpu_tensor_offset(idx);
-    size_t idx_misalignment = idx_offset & (ctx->limits.minStorageBufferOffsetAlignment - 1);
-    idx_offset &= ~(ctx->limits.minStorageBufferOffsetAlignment - 1);
-    size_t dst_offset       = ggml_backend_webgpu_tensor_offset(dst);
-    size_t dst_misalignment = dst_offset & (ctx->limits.minStorageBufferOffsetAlignment - 1);
-    dst_offset &= ~(ctx->limits.minStorageBufferOffsetAlignment - 1);
-
-    std::vector<uint32_t> params = { (uint32_t) (src_misalignment / ggml_type_size(src->type)),
-                                     (uint32_t) (idx_misalignment / ggml_type_size(idx->type)),
-                                     (uint32_t) (dst_misalignment / ggml_type_size(dst->type)),
+    std::vector<uint32_t> params = { (uint32_t) (ggml_webgpu_tensor_misalignment(ctx, src) / ggml_type_size(src->type)),
+                                     (uint32_t) (ggml_webgpu_tensor_misalignment(ctx, idx) / ggml_type_size(idx->type)),
+                                     (uint32_t) (ggml_webgpu_tensor_misalignment(ctx, dst) / ggml_type_size(dst->type)),
                                      // Convert byte-strides to element-strides
                                      (uint32_t) (src->nb[1] / ggml_type_size(src->type)),
                                      (uint32_t) (src->nb[2] / ggml_type_size(src->type)),
@@ -540,18 +533,18 @@ static void ggml_webgpu_set_rows(webgpu_context & ctx, ggml_tensor * src, ggml_t
 
     std::vector<wgpu::BindGroupEntry> entries = {
         { .binding = 0,
-         .buffer  = ggml_backend_webgpu_tensor_buf(src),
-         .offset  = ggml_backend_webgpu_tensor_offset(src),
-         .size    = ggml_nbytes(src)                                                                       },
+         .buffer  = ggml_webgpu_tensor_buf(src),
+         .offset  = ggml_webgpu_tensor_align_offset(ctx, src),
+         .size    = ggml_webgpu_tensor_binding_size(ctx, src) },
         { .binding = 1,
-         .buffer  = ggml_backend_webgpu_tensor_buf(idx),
-         .offset  = ggml_backend_webgpu_tensor_offset(idx),
-         .size    = ggml_nbytes(idx)                                                                       },
+         .buffer  = ggml_webgpu_tensor_buf(idx),
+         .offset  = ggml_webgpu_tensor_align_offset(ctx, idx),
+         .size    = ggml_webgpu_tensor_binding_size(ctx, idx) },
         { .binding = 2,
-         .buffer  = ggml_backend_webgpu_tensor_buf(dst),
-         .offset  = ggml_backend_webgpu_tensor_offset(dst),
-         .size    = ggml_nbytes(dst)                                                                       },
-        { .binding = 3, .buffer = error_bufs.dev_buf,    .offset = 0, .size = error_bufs.dev_buf.GetSize() }
+         .buffer  = ggml_webgpu_tensor_buf(dst),
+         .offset  = ggml_webgpu_tensor_align_offset(ctx, dst),
+         .size    = ggml_webgpu_tensor_binding_size(ctx, dst) },
+        { .binding = 3, .buffer = error_bufs.dev_buf, .offset = 0, .size = error_bufs.dev_buf.GetSize() }
     };
 
     size_t   max_wg_size = ctx->limits.maxComputeWorkgroupSizeX;
@@ -565,15 +558,18 @@ static void ggml_webgpu_set_rows(webgpu_context & ctx, ggml_tensor * src, ggml_t
 
 static void ggml_webgpu_mul_mat(webgpu_context & ctx, ggml_tensor * src0, ggml_tensor * src1, ggml_tensor * dst) {
     std::vector<uint32_t> params = {
+        (uint32_t) (ggml_webgpu_tensor_misalignment(ctx, src0) / ggml_type_size(src0->type)),
+        (uint32_t) (ggml_webgpu_tensor_misalignment(ctx, src1) / ggml_type_size(src1->type)),
+        (uint32_t) (ggml_webgpu_tensor_misalignment(ctx, dst) / ggml_type_size(dst->type)),
         (uint32_t) dst->ne[1],                                  // number of rows in result (M)
         (uint32_t) dst->ne[0],                                  // number of columns in result (N)
         (uint32_t) src0->ne[0],                                 // number of columns in src0/src1 (K)
-        (uint32_t) (src0->nb[1] / ggml_type_size(src0->type)),  // stride (elements) of src0 in dimension 1
-        (uint32_t) (src1->nb[1] / ggml_type_size(src1->type)),  // stride (elements) of src1 in dimension 1
-        (uint32_t) (src0->nb[2] / ggml_type_size(src0->type)),  // stride (elements) of src0 in dimension 2
-        (uint32_t) (src1->nb[2] / ggml_type_size(src1->type)),  // stride (elements) of src1 in dimension 2
-        (uint32_t) (src0->nb[3] / ggml_type_size(src0->type)),  // stride (elements) of src0 in dimension 3
-        (uint32_t) (src1->nb[3] / ggml_type_size(src1->type)),  // stride (elements) of src1 in dimension 3
+        (uint32_t) (src0->nb[1] / ggml_type_size(src0->type)),  // stride (elements/blocks) of src0 in dimension 1
+        (uint32_t) (src1->nb[1] / ggml_type_size(src1->type)),  // stride (elements/blocks) of src1 in dimension 1
+        (uint32_t) (src0->nb[2] / ggml_type_size(src0->type)),  // stride (elements/blocks) of src0 in dimension 2
+        (uint32_t) (src1->nb[2] / ggml_type_size(src1->type)),  // stride (elements/blocks) of src1 in dimension 2
+        (uint32_t) (src0->nb[3] / ggml_type_size(src0->type)),  // stride (elements/blocks) of src0 in dimension 3
+        (uint32_t) (src1->nb[3] / ggml_type_size(src1->type)),  // stride (elements/blocks) of src1 in dimension 3
         (uint32_t) src0->ne[2],                                 // batch size in dimension 2
         (uint32_t) src0->ne[3],                                 // batch size in dimension 3
         (uint32_t) (src1->ne[2] / src0->ne[2]),                 // broadcast in dimension 2
@@ -582,22 +578,22 @@ static void ggml_webgpu_mul_mat(webgpu_context & ctx, ggml_tensor * src0, ggml_t
 
     std::vector<wgpu::BindGroupEntry> entries = {
         { .binding = 0,
-         .buffer  = ggml_backend_webgpu_tensor_buf(src0),
-         .offset  = ggml_backend_webgpu_tensor_offset(src0),
-         .size    = ggml_nbytes(src0) },
+         .buffer  = ggml_webgpu_tensor_buf(src0),
+         .offset  = ggml_webgpu_tensor_align_offset(ctx, src0),
+         .size    = ggml_webgpu_tensor_binding_size(ctx, src0) },
         { .binding = 1,
-         .buffer  = ggml_backend_webgpu_tensor_buf(src1),
-         .offset  = ggml_backend_webgpu_tensor_offset(src1),
-         .size    = ggml_nbytes(src1) },
+         .buffer  = ggml_webgpu_tensor_buf(src1),
+         .offset  = ggml_webgpu_tensor_align_offset(ctx, src1),
+         .size    = ggml_webgpu_tensor_binding_size(ctx, src1) },
         { .binding = 2,
-         .buffer  = ggml_backend_webgpu_tensor_buf(dst),
-         .offset  = ggml_backend_webgpu_tensor_offset(dst),
-         .size    = ggml_nbytes(dst)  }
+         .buffer  = ggml_webgpu_tensor_buf(dst),
+         .offset  = ggml_webgpu_tensor_align_offset(ctx, dst),
+         .size    = ggml_webgpu_tensor_binding_size(ctx, dst)  },
     };
 
     uint32_t wg_x =
         (dst->ne[0] * dst->ne[1] * dst->ne[2] * dst->ne[3] + WEBGPU_MUL_MAT_WG_SIZE - 1) / WEBGPU_MUL_MAT_WG_SIZE;
-    ggml_backend_webgpu_build_and_enqueue(ctx, ctx->mul_mat_pipeline, params, entries, wg_x);
+    ggml_backend_webgpu_build_and_enqueue(ctx, ctx->mul_mat_pipeline[src0->type][src1->type], params, entries, wg_x);
 }
 
 // Returns true if node has enqueued work into the queue, false otherwise
@@ -827,7 +823,7 @@ static ggml_backend_buffer_t ggml_backend_webgpu_buffer_type_alloc_buffer(ggml_b
     wgpu::Buffer buf;
     ggml_webgpu_create_buffer(ctx->webgpu_ctx->device,
                               buf,
-                              size,
+                              (size + WEBGPU_STORAGE_BUF_BINDING_MULT - 1) & ~(WEBGPU_STORAGE_BUF_BINDING_MULT - 1),
                               wgpu::BufferUsage::Storage | wgpu::BufferUsage::CopySrc | wgpu::BufferUsage::CopyDst,
                               "allocated_buffer");
 
@@ -907,7 +903,94 @@ static void ggml_webgpu_init_memset_pipeline(webgpu_context & webgpu_ctx) {
 }
 
 static void ggml_webgpu_init_mul_mat_pipeline(webgpu_context & webgpu_ctx) {
-    ggml_webgpu_create_pipeline(webgpu_ctx->device, webgpu_ctx->mul_mat_pipeline, wgsl_mul_mat, "mul_mat");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_F32][GGML_TYPE_F32],
+                                wgsl_mul_mat_f32_f32,
+                                "mul_mat_f32_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_F16][GGML_TYPE_F16],
+                                wgsl_mul_mat_f16_f16,
+                                "mul_mat_f16_f16");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_F16][GGML_TYPE_F32],
+                                wgsl_mul_mat_f16_f32,
+                                "mul_mat_f16_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_Q4_0][GGML_TYPE_F32],
+                                wgsl_mul_mat_q4_0_f32,
+                                "mul_mat_q4_0_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_Q4_1][GGML_TYPE_F32],
+                                wgsl_mul_mat_q4_1_f32,
+                                "mul_mat_q4_1_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_Q5_0][GGML_TYPE_F32],
+                                wgsl_mul_mat_q5_0_f32,
+                                "mul_mat_q5_0_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_Q5_1][GGML_TYPE_F32],
+                                wgsl_mul_mat_q5_1_f32,
+                                "mul_mat_q5_1_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_Q8_0][GGML_TYPE_F32],
+                                wgsl_mul_mat_q8_0_f32,
+                                "mul_mat_q8_0_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_Q2_K][GGML_TYPE_F32],
+                                wgsl_mul_mat_q2_k_f32,
+                                "mul_mat_q2_k_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_Q3_K][GGML_TYPE_F32],
+                                wgsl_mul_mat_q3_k_f32,
+                                "mul_mat_q3_k_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_Q4_K][GGML_TYPE_F32],
+                                wgsl_mul_mat_q4_k_f32,
+                                "mul_mat_q4_k_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_Q5_K][GGML_TYPE_F32],
+                                wgsl_mul_mat_q5_k_f32,
+                                "mul_mat_q5_k_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_Q6_K][GGML_TYPE_F32],
+                                wgsl_mul_mat_q6_k_f32,
+                                "mul_mat_q6_k_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_IQ2_XXS][GGML_TYPE_F32],
+                                wgsl_mul_mat_iq2_xxs_f32,
+                                "mul_mat_iq2_xxs_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_IQ2_XS][GGML_TYPE_F32],
+                                wgsl_mul_mat_iq2_xs_f32,
+                                "mul_mat_iq2_xs_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_IQ2_S][GGML_TYPE_F32],
+                                wgsl_mul_mat_iq2_s_f32,
+                                "mul_mat_iq2_s_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_IQ3_XXS][GGML_TYPE_F32],
+                                wgsl_mul_mat_iq3_xxs_f32,
+                                "mul_mat_iq3_xxs_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_IQ3_S][GGML_TYPE_F32],
+                                wgsl_mul_mat_iq3_s_f32,
+                                "mul_mat_iq3_s_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_IQ1_S][GGML_TYPE_F32],
+                                wgsl_mul_mat_iq1_s_f32,
+                                "mul_mat_iq1_s_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_IQ1_M][GGML_TYPE_F32],
+                                wgsl_mul_mat_iq1_m_f32,
+                                "mul_mat_iq1_m_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_IQ4_NL][GGML_TYPE_F32],
+                                wgsl_mul_mat_iq4_nl_f32,
+                                "mul_mat_iq4_nl_f32");
+    ggml_webgpu_create_pipeline(webgpu_ctx->device,
+                                webgpu_ctx->mul_mat_pipeline[GGML_TYPE_IQ4_XS][GGML_TYPE_F32],
+                                wgsl_mul_mat_iq4_xs_f32,
+                                "mul_mat_iq4_xs_f32");
 }
 
 static void ggml_webgpu_init_set_rows_pipeline(webgpu_context & webgpu_ctx) {
@@ -933,79 +1016,6 @@ static ggml_backend_t ggml_backend_webgpu_device_init(ggml_backend_dev_t dev, co
     ggml_backend_webgpu_device_context * dev_ctx    = static_cast<ggml_backend_webgpu_device_context *>(dev->context);
     webgpu_context                       webgpu_ctx = dev_ctx->webgpu_ctx;
 
-    // Multiple threads may try to initialize the device
-    std::lock_guard<std::recursive_mutex> lock(webgpu_ctx->mutex);
-    if (!webgpu_ctx->device_init) {
-        // Initialize device
-        std::vector<wgpu::FeatureName> required_features = { wgpu::FeatureName::ShaderF16,
-                                                             wgpu::FeatureName::ImplicitDeviceSynchronization };
-        wgpu::DeviceDescriptor         dev_desc;
-        dev_desc.requiredLimits       = &webgpu_ctx->limits;
-        dev_desc.requiredFeatures     = required_features.data();
-        dev_desc.requiredFeatureCount = required_features.size();
-        dev_desc.SetDeviceLostCallback(
-            wgpu::CallbackMode::AllowSpontaneous,
-            [](const wgpu::Device & device, wgpu::DeviceLostReason reason, wgpu::StringView message) {
-                GGML_UNUSED(device);
-                GGML_LOG_ERROR(
-                    "ggml_webgpu: Device lost! Reason: %d, Message: %s\n", static_cast<int>(reason), message.data);
-            });
-        dev_desc.SetUncapturedErrorCallback(
-            [](const wgpu::Device & device, wgpu::ErrorType reason, wgpu::StringView message) {
-                GGML_UNUSED(device);
-                GGML_LOG_ERROR(
-                    "ggml_webgpu: Device error! Reason: %d, Message: %s\n", static_cast<int>(reason), message.data);
-            });
-        webgpu_ctx->instance.WaitAny(
-            webgpu_ctx->adapter.RequestDevice(
-                &dev_desc,
-                wgpu::CallbackMode::AllowSpontaneous,
-                [webgpu_ctx](wgpu::RequestDeviceStatus status, wgpu::Device device, wgpu::StringView message) {
-                    if (status != wgpu::RequestDeviceStatus::Success) {
-                        GGML_LOG_ERROR("ggml_webgpu: Failed to get a device: %s\n", message.data);
-                        return;
-                    }
-                    webgpu_ctx->device = std::move(device);
-                }),
-            UINT64_MAX);
-        GGML_ASSERT(webgpu_ctx->device != nullptr);
-
-        // Initialize (compute) queue
-        webgpu_ctx->queue = webgpu_ctx->device.GetQueue();
-
-        // Create buffer pool for shader parameters
-        webgpu_ctx->param_buf_pool.init(webgpu_ctx->device,
-                                        WEBGPU_NUM_PARAM_BUFS,
-                                        WEBGPU_PARAMS_BUF_SIZE_BYTES,
-                                        wgpu::BufferUsage::CopyDst | wgpu::BufferUsage::Uniform,
-                                        wgpu::BufferUsage::CopySrc | wgpu::BufferUsage::MapWrite);
-        webgpu_ctx->set_rows_error_buf_pool.init(webgpu_ctx->device,
-                                                 WEBGPU_NUM_SET_ROWS_ERROR_BUFS,
-                                                 WEBGPU_SET_ROWS_ERROR_BUF_SIZE_BYTES,
-                                                 wgpu::BufferUsage::CopySrc | wgpu::BufferUsage::Storage,
-                                                 wgpu::BufferUsage::CopyDst | wgpu::BufferUsage::MapRead);
-
-        ggml_webgpu_init_memset_pipeline(webgpu_ctx);
-        ggml_webgpu_init_mul_mat_pipeline(webgpu_ctx);
-        ggml_webgpu_init_set_rows_pipeline(webgpu_ctx);
-        ggml_webgpu_init_cpy_pipeline(webgpu_ctx);
-
-#ifdef GGML_WEBGPU_DEBUG
-        // Initialize debug buffers
-        ggml_webgpu_create_buffer(webgpu_ctx->device,
-                                  webgpu_ctx->debug_host_buf,
-                                  WEBGPU_DEBUG_BUF_ELEMS * sizeof(uint32_t),
-                                  wgpu::BufferUsage::CopyDst | wgpu::BufferUsage::MapRead,
-                                  "debug_host_buf");
-        ggml_webgpu_create_buffer(webgpu_ctx->device,
-                                  webgpu_ctx->debug_dev_buf,
-                                  WEBGPU_DEBUG_BUF_ELEMS * sizeof(uint32_t),
-                                  wgpu::BufferUsage::Storage | wgpu::BufferUsage::CopySrc,
-                                  "debug_dev_buf");
-#endif
-        webgpu_ctx->device_init = true;
-    }
-
     static ggml_backend_webgpu_context backend_ctx;
     backend_ctx.name       = GGML_WEBGPU_NAME + std::string(": ") + dev_ctx->device_name;
     backend_ctx.webgpu_ctx = webgpu_ctx;
@@ -1053,10 +1063,45 @@ static bool ggml_backend_webgpu_device_supports_op(ggml_backend_dev_t dev, const
         case GGML_OP_VIEW:
         case GGML_OP_PERMUTE:
             return true;
-        case GGML_OP_CPY | GGML_OP_SET_ROWS:
+        case GGML_OP_CPY:
+        case GGML_OP_SET_ROWS:
             return op->type == GGML_TYPE_F16 && op->src[0]->type == GGML_TYPE_F32;
         case GGML_OP_MUL_MAT:
-            return op->src[0]->type == GGML_TYPE_F32 && op->src[1]->type == GGML_TYPE_F32;
+            {
+                switch (op->src[1]->type) {
+                    case GGML_TYPE_F16:
+                        return op->src[0]->type == GGML_TYPE_F16;
+                    case GGML_TYPE_F32:
+                        switch (op->src[0]->type) {
+                            case GGML_TYPE_F32:
+                            case GGML_TYPE_F16:
+                            case GGML_TYPE_Q4_0:
+                            case GGML_TYPE_Q4_1:
+                            case GGML_TYPE_Q5_0:
+                            case GGML_TYPE_Q5_1:
+                            case GGML_TYPE_Q8_0:
+                            case GGML_TYPE_Q2_K:
+                            case GGML_TYPE_Q3_K:
+                            case GGML_TYPE_Q4_K:
+                            case GGML_TYPE_Q5_K:
+                            case GGML_TYPE_Q6_K:
+                            case GGML_TYPE_IQ2_XXS:
+                            case GGML_TYPE_IQ2_XS:
+                            case GGML_TYPE_IQ2_S:
+                            case GGML_TYPE_IQ3_XXS:
+                            case GGML_TYPE_IQ3_S:
+                            case GGML_TYPE_IQ1_S:
+                            case GGML_TYPE_IQ1_M:
+                            case GGML_TYPE_IQ4_NL:
+                            case GGML_TYPE_IQ4_XS:
+                                return true;
+                            default:
+                                return false;
+                        }
+                    default:
+                        return false;
+                }
+            }
         default:
             return false;
     }
@@ -1123,20 +1168,87 @@ static ggml_backend_dev_t ggml_backend_webgpu_reg_get_device(ggml_backend_reg_t
     wgpu::AdapterInfo info{};
     ctx->adapter.GetInfo(&info);
 
+    // Initialize device
+    std::vector<wgpu::FeatureName> required_features = { wgpu::FeatureName::ShaderF16,
+                                                         wgpu::FeatureName::ImplicitDeviceSynchronization };
+    wgpu::DeviceDescriptor         dev_desc;
+    dev_desc.requiredLimits       = &ctx->limits;
+    dev_desc.requiredFeatures     = required_features.data();
+    dev_desc.requiredFeatureCount = required_features.size();
+    dev_desc.SetDeviceLostCallback(
+        wgpu::CallbackMode::AllowSpontaneous,
+        [](const wgpu::Device & device, wgpu::DeviceLostReason reason, wgpu::StringView message) {
+            GGML_UNUSED(device);
+            GGML_LOG_ERROR(
+                "ggml_webgpu: Device lost! Reason: %d, Message: %s\n", static_cast<int>(reason), std::string(message).c_str());
+        });
+    dev_desc.SetUncapturedErrorCallback(
+        [](const wgpu::Device & device, wgpu::ErrorType reason, wgpu::StringView message) {
+            GGML_UNUSED(device);
+            GGML_LOG_ERROR(
+                "ggml_webgpu: Device error! Reason: %d, Message: %s\n", static_cast<int>(reason), std::string(message).c_str());
+        });
+    ctx->instance.WaitAny(ctx->adapter.RequestDevice(
+                              &dev_desc,
+                              wgpu::CallbackMode::AllowSpontaneous,
+                              [ctx](wgpu::RequestDeviceStatus status, wgpu::Device device, wgpu::StringView message) {
+                                  if (status != wgpu::RequestDeviceStatus::Success) {
+                                      GGML_LOG_ERROR("ggml_webgpu: Failed to get a device: %s\n", std::string(message).c_str());
+                                      return;
+                                  }
+                                  ctx->device = std::move(device);
+                              }),
+                          UINT64_MAX);
+    GGML_ASSERT(ctx->device != nullptr);
+
+    // Initialize (compute) queue
+    ctx->queue = ctx->device.GetQueue();
+
+    // Create buffer pool for shader parameters
+    ctx->param_buf_pool.init(ctx->device,
+                             WEBGPU_NUM_PARAM_BUFS,
+                             WEBGPU_PARAMS_BUF_SIZE_BYTES,
+                             wgpu::BufferUsage::CopyDst | wgpu::BufferUsage::Uniform,
+                             wgpu::BufferUsage::CopySrc | wgpu::BufferUsage::MapWrite);
+    ctx->set_rows_error_buf_pool.init(ctx->device,
+                                      WEBGPU_NUM_SET_ROWS_ERROR_BUFS,
+                                      WEBGPU_SET_ROWS_ERROR_BUF_SIZE_BYTES,
+                                      wgpu::BufferUsage::CopySrc | wgpu::BufferUsage::Storage,
+                                      wgpu::BufferUsage::CopyDst | wgpu::BufferUsage::MapRead);
+
+    ggml_webgpu_init_memset_pipeline(ctx);
+    ggml_webgpu_init_mul_mat_pipeline(ctx);
+    ggml_webgpu_init_set_rows_pipeline(ctx);
+    ggml_webgpu_init_cpy_pipeline(ctx);
+
+#ifdef GGML_WEBGPU_DEBUG
+    // Initialize debug buffers
+    ggml_webgpu_create_buffer(ctx->device,
+                              ctx->debug_host_buf,
+                              WEBGPU_DEBUG_BUF_ELEMS * sizeof(uint32_t),
+                              wgpu::BufferUsage::CopyDst | wgpu::BufferUsage::MapRead,
+                              "debug_host_buf");
+    ggml_webgpu_create_buffer(ctx->device,
+                              ctx->debug_dev_buf,
+                              WEBGPU_DEBUG_BUF_ELEMS * sizeof(uint32_t),
+                              wgpu::BufferUsage::Storage | wgpu::BufferUsage::CopySrc,
+                              "debug_dev_buf");
+#endif
+
     static ggml_backend_webgpu_device_context device_ctx;
     device_ctx.webgpu_ctx  = ctx;
     device_ctx.device_name = GGML_WEBGPU_NAME;
-    device_ctx.device_desc = std::string(info.description.data);
+    device_ctx.device_desc = info.description;
 
     GGML_LOG_INFO(
         "ggml_webgpu: adapter_info: vendor_id: %u | vendor: %s | architecture: %s | device_id: %u | name: %s | "
         "device_desc: %s\n",
         info.vendorID,
-        info.vendor.data,
-        info.architecture.data,
+        std::string(info.vendor).c_str(),
+        std::string(info.architecture).c_str(),
         info.deviceID,
-        info.device.data,
-        info.description.data);
+        std::string(info.device).c_str(),
+        std::string(info.description).c_str());
 
     // See GGML Backend Device Interface section
     static ggml_backend_device device = {
index 962dcd6b170ed776a620602cf80a31663a93d304..cc8def7f13ea4e0e65a8f4f54418786771f6fe58 100755 (executable)
@@ -1,35 +1,85 @@
 import os
+import re
+import ast
 import argparse
 
 
-def escape_triple_quotes(wgsl):
-    # Simple defense in case of embedded """
-    return wgsl.replace('"""', '\\"""')
+def extract_block(text, name):
+    pattern = rf'#define\({name}\)\s*(.*?)#end\({name}\)'
+    match = re.search(pattern, text, re.DOTALL)
+    if not match:
+        raise ValueError(f"Missing block: {name}")
+    return match.group(1).strip()
 
 
-def to_cpp_string_literal(varname, content):
-    return f'const char* wgsl_{varname} = R"({content})";\n'
+def parse_decls(decls_text):
+    decls = {}
+    for name, code in re.findall(r'#decl\((.*?)\)\s*(.*?)#enddecl\(\1\)', decls_text, re.DOTALL):
+        decls[name.strip()] = code.strip()
+    return decls
+
+
+def replace_placeholders(shader_text, replacements):
+    for key, val in replacements.items():
+        # Match {{KEY}} literally, where KEY is escaped
+        pattern = r'{{\s*' + re.escape(key) + r'\s*}}'
+        shader_text = re.sub(pattern, str(val), shader_text)
+    return shader_text
+
+
+def write_shader(shader_name, shader_code, output_dir, outfile):
+    if output_dir:
+        wgsl_filename = os.path.join(output_dir, f"{shader_name}.wgsl")
+        with open(wgsl_filename, "w", encoding="utf-8") as f_out:
+            f_out.write(shader_code)
+    outfile.write(f'const char* wgsl_{shader_name} = R"({shader_code})";\n\n')
+
+
+def generate_variants(shader_path, output_dir, outfile):
+    shader_base_name = shader_path.split("/")[-1].split(".")[0]
+
+    with open(shader_path, "r", encoding="utf-8") as f:
+        text = f.read()
+
+    try:
+        variants = ast.literal_eval(extract_block(text, "VARIANTS"))
+    except ValueError:
+        write_shader(shader_base_name, text, output_dir, outfile)
+    else:
+        decls_map = parse_decls(extract_block(text, "DECLS"))
+        shader_template = extract_block(text, "SHADER")
+
+        for variant in variants:
+            decls = variant["DECLS"]
+            decls_code = ""
+            for key in decls:
+                if key not in decls_map:
+                    raise ValueError(f"DECLS key '{key}' not found.")
+                decls_code += decls_map[key] + "\n\n"
+
+            shader_variant = replace_placeholders(shader_template, variant["REPLS"])
+            final_shader = re.sub(r'\bDECLS\b', decls_code, shader_variant)
+
+            output_name = f"{shader_base_name}_" + "_".join([variant["REPLS"]["SRC0_TYPE"], variant["REPLS"]["SRC1_TYPE"]])
+            write_shader(output_name, final_shader, output_dir, outfile)
 
 
 def main():
     parser = argparse.ArgumentParser()
-    parser.add_argument('--input', required=True)
-    parser.add_argument('--output', required=True)
+    parser.add_argument("--input_dir", required=True)
+    parser.add_argument("--output_file", required=True)
+    parser.add_argument("--output_dir")
     args = parser.parse_args()
 
-    with open(args.output, 'w', encoding='utf-8') as out:
-        out.write("// Auto-generated shader embedding \n\n")
-        for fname in sorted(os.listdir(args.input)):
-            if not fname.endswith('.wgsl'):
-                continue
-            shader_path = os.path.join(args.input, fname)
-            varname = os.path.splitext(fname)[0]
-            with open(shader_path, 'r', encoding='utf-8') as f:
-                content = f.read()
-            content = escape_triple_quotes(content)
-            out.write(to_cpp_string_literal(varname, content))
-            out.write('\n')
-
-
-if __name__ == '__main__':
+    if args.output_dir:
+        os.makedirs(args.output_dir, exist_ok=True)
+
+    with open(args.output_file, "w", encoding="utf-8") as out:
+        out.write("// Auto-generated shader embedding\n\n")
+        for fname in sorted(os.listdir(args.input_dir)):
+            if fname.endswith(".wgsl"):
+                generate_variants(os.path.join(args.input_dir, fname), args.output_dir, out)
+
+
+if __name__ == "__main__":
     main()
index cb7c8c3e09e9150b57ace4434acf7bc72c2e2829..194d2d6f58c778619016fe07cf8ececea21a5cc0 100644 (file)
@@ -19,20 +19,20 @@ fn main(@builtin(global_invocation_id) gid: vec3<u32>) {
     let start = params.offset;
     let end = params.offset + params.size;
 
-    for (var j: u32 = 0u; j < bytes_per_thread; j = j + 1u) {
+    for (var j: u32 = 0u; j < bytes_per_thread; j += 4) {
         let byte_index = start + i + j;
-        if (byte_index + 4u <= end) {
-            output_buffer[(byte_index >> 2u)] = params.value;
+        if (byte_index + 4 <= end) {
+            output_buffer[byte_index >> 2] = params.value;
         } else {
             // Handle tail (unaligned)
-            for (var k: u32 = 0u; k < 4u; k = k + 1u) {
+            for (var k: u32 = 0; k < 4; k++) {
                 let idx = byte_index + k;
                 if (idx < end) {
-                    let word_idx = idx >> 2u;
-                    let byte_offset = (idx & 3u) * 8u;
-                    let mask = ~(0xffu << byte_offset);
+                    let word_idx = idx >> 2;
+                    let bit_offset = (idx & 3) * 8u;
+                    let mask = ~(0xffu << bit_offset);
                     let existing = output_buffer[word_idx];
-                    output_buffer[word_idx] = (existing & mask) | ((params.value & 0xffu) << byte_offset);
+                    output_buffer[word_idx] = (existing & mask) | (params.value & (0xffu << bit_offset));
                 }
             }
         }
diff --git a/ggml/src/ggml-webgpu/wgsl-shaders/mul_mat.tmpl.wgsl b/ggml/src/ggml-webgpu/wgsl-shaders/mul_mat.tmpl.wgsl
new file mode 100644 (file)
index 0000000..79465c2
--- /dev/null
@@ -0,0 +1,1794 @@
+#define(VARIANTS)
+
+[
+  {
+    "REPLS": {
+      "SRC0_TYPE" : "f32",
+      "SRC1_TYPE" : "f32",
+      "BLOCK_SIZE" : 1
+    },
+    "DECLS" : ["FLOAT"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE" : "f16",
+      "SRC1_TYPE" : "f16",
+      "BLOCK_SIZE" : 1
+    },
+    "DECLS" : ["FLOAT"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE" : "f16",
+      "SRC1_TYPE" : "f32",
+      "BLOCK_SIZE" : 1
+    },
+    "DECLS" : ["FLOAT"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "q4_0",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 32
+    },
+    "DECLS": ["BYTE_HELPERS", "Q4_0"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "q4_1",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 32
+    },
+    "DECLS": ["BYTE_HELPERS", "Q4_1"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "q5_0",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 32
+    },
+    "DECLS": ["BYTE_HELPERS", "Q5_0"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "q5_1",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 32
+    },
+    "DECLS": ["BYTE_HELPERS", "Q5_1"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "q8_0",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 32
+    },
+    "DECLS": ["BYTE_HELPERS", "Q8_0"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "q2_k",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 256
+    },
+    "DECLS": ["BYTE_HELPERS", "Q2_K"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "q3_k",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 256
+    },
+    "DECLS": ["BYTE_HELPERS", "Q3_K"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "q4_k",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 256
+    },
+    "DECLS": ["Q45_K_SCALE_MIN", "BYTE_HELPERS", "Q4_K"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "q5_k",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 256
+    },
+    "DECLS": ["Q45_K_SCALE_MIN", "BYTE_HELPERS", "Q5_K"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "q6_k",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 256
+    },
+    "DECLS": ["BYTE_HELPERS", "Q6_K"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "iq2_xxs",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 256
+    },
+    "DECLS": ["BYTE_HELPERS", "IQ23_TABLES", "IQ2_XXS"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "iq2_xs",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 256
+    },
+    "DECLS": ["BYTE_HELPERS", "IQ23_TABLES", "IQ2_XS"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "iq2_s",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 256
+    },
+    "DECLS": ["BYTE_HELPERS", "IQ23_TABLES", "IQ2_S"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "iq3_xxs",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 256
+    },
+    "DECLS": ["BYTE_HELPERS", "IQ23_TABLES", "IQ3_XSS"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "iq3_s",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 256
+    },
+    "DECLS": ["BYTE_HELPERS", "IQ23_TABLES", "IQ3_S"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "iq1_s",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 256
+    },
+    "DECLS": ["BYTE_HELPERS", "IQ1_TABLE","IQ1_S"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "iq1_m",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 256
+    },
+    "DECLS": ["BYTE_HELPERS", "IQ1_TABLE","IQ1_M"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "iq4_nl",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 32,
+    },
+    "DECLS": ["BYTE_HELPERS", "IQ4_TABLE", "IQ4_NL"]
+  },
+  {
+    "REPLS": {
+      "SRC0_TYPE": "iq4_xs",
+      "SRC1_TYPE": "f32",
+      "BLOCK_SIZE": 256,
+    },
+    "DECLS": ["BYTE_HELPERS", "IQ4_TABLE", "IQ4_XS"]
+  }
+]
+
+#end(VARIANTS)
+
+#define(DECLS)
+
+#decl(BYTE_HELPERS)
+
+fn get_byte(value: u32, index: u32) -> u32 {
+    return (value >> (index * 8)) & 0xFF;
+}
+
+fn get_byte_i32(value: u32, index: u32) -> i32 {
+    return bitcast<i32>(((value >> (index * 8)) & 0xFF) << 24) >> 24;
+}
+
+#enddecl(BYTE_HELPERS)
+
+#decl(FLOAT)
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    return f32(src0[src0_idx_base + offset]) * f32(src1[src1_idx_base + offset]);
+}
+#enddecl(FLOAT)
+
+#decl(Q4_0)
+struct q4_0 {
+    d: f16,
+    qs: array<f16, 8>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block_q4_0 = src0[src0_idx_base + offset];
+    let d = f32(block_q4_0.d);
+    var sum: f32 = 0.0;
+    for (var j: u32 = 0; j < 4; j++) {
+        let q_packed = bitcast<u32>(vec2(block_q4_0.qs[2 * j], block_q4_0.qs[2 * j + 1]));
+        for (var k: u32 = 0; k < 4; k++) {
+            let q_byte = get_byte(q_packed, k);
+            let q_hi = (f32((q_byte >> 4) & 0xF) - 8.0f) * d;
+            let q_lo = (f32(q_byte & 0xF) - 8.0f) * d;
+            let src1_offset = src1_idx_base + offset * 32 + j * 4 + k;
+            sum += q_lo * f32(src1[src1_offset]);
+            sum += q_hi * f32(src1[src1_offset + 16]);
+        }
+    }
+    return sum;
+}
+#enddecl(Q4_0)
+
+#decl(Q4_1)
+struct q4_1 {
+    d: f16,
+    m: f16,
+    qs: array<u32, 4>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block_q4_1 = src0[src0_idx_base + offset];
+    let d = f32(block_q4_1.d);
+    let m = f32(block_q4_1.m);
+    var sum: f32 = 0.0;
+    for (var j: u32 = 0; j < 4; j++) {
+        let q_packed = block_q4_1.qs[j];
+        for (var k: u32 = 0; k < 4; k++) {
+            let q_byte = get_byte(q_packed, k);
+            let q_hi = f32((q_byte >> 4) & 0xF) * d + m;
+            let q_lo = f32(q_byte & 0xF) * d + m;
+            let src1_offset = src1_idx_base + offset * 32 + j * 4 + k;
+            sum += q_lo * f32(src1[src1_offset]);
+            sum += q_hi * f32(src1[src1_offset + 16]);
+        }
+    }
+    return sum;
+}
+#enddecl(Q4_1)
+
+#decl(Q5_0)
+struct q5_0 {
+    d: f16,
+    qh: array<f16, 2>,
+    qs: array<f16, 8>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block_q5_0 = src0[src0_idx_base + offset];
+    let d = f32(block_q5_0.d);
+    var sum: f32 = 0.0;
+    let qh_packed = bitcast<u32>(vec2(block_q5_0.qh[0], block_q5_0.qh[1]));
+    for (var j: u32 = 0; j < 4; j++) {
+        let q_packed = bitcast<u32>(vec2(block_q5_0.qs[2 * j], block_q5_0.qs[2 * j + 1]));
+        for (var k: u32 = 0; k < 4; k++) {
+            let q_byte = get_byte(q_packed, k);
+            let qh_hi = (qh_packed >> (j * 4 + k + 12)) & 0x10;
+            let q_hi = (f32(((q_byte >> 4) & 0xF) | qh_hi) - 16.0) * d;
+            let qh_lo = ((qh_packed >> (j * 4 + k)) << 4) & 0x10;
+            let q_lo = (f32((q_byte & 0xF) | qh_lo) - 16.0) * d;
+            let src1_offset = src1_idx_base + offset * 32 + j * 4 + k;
+            sum += q_lo * f32(src1[src1_offset]);
+            sum += q_hi * f32(src1[src1_offset + 16]);
+        }
+    }
+    return sum;
+}
+#enddecl(Q5_0)
+
+#decl(Q5_1)
+struct q5_1 {
+    d: f16,
+    m: f16,
+    qh: u32,
+    qs: array<u32, 4>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block_q5_1 = src0[src0_idx_base + offset];
+    let d = f32(block_q5_1.d);
+    let m = f32(block_q5_1.m);
+    var sum: f32 = 0.0;
+    for (var j: u32 = 0; j < 4; j++) {
+        let q_packed = block_q5_1.qs[j];
+        for (var k: u32 = 0; k < 4; k++) {
+            let q_byte = get_byte(q_packed, k);
+            let qh_hi = (block_q5_1.qh >> (j * 4 + k + 12)) & 0x10;
+            let q_hi = f32(((q_byte >> 4) & 0xF) | qh_hi) * d + m;
+            let qh_lo = ((block_q5_1.qh >> (j * 4 + k)) << 4) & 0x10;
+            let q_lo = f32((q_byte & 0xF) | qh_lo) * d + m;
+            let src1_offset = src1_idx_base + offset * 32 + j * 4 + k;
+            sum += q_lo * f32(src1[src1_offset]);
+            sum += q_hi * f32(src1[src1_offset + 16]);
+        }
+    }
+    return sum;
+}
+#enddecl(Q5_1)
+
+#decl(Q8_0)
+struct q8_0 {
+    d: f16,
+    qs: array<f16, 16>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block_q8_0 = src0[src0_idx_base + offset];
+    let d = f32(block_q8_0.d);
+    var sum: f32 = 0.0;
+    for (var j: u32 = 0; j < 8; j++) {
+        let q_packed = bitcast<u32>(vec2(block_q8_0.qs[2 * j], block_q8_0.qs[2 * j + 1]));
+        for (var k: u32 = 0; k < 4; k++) {
+            let q_byte = get_byte_i32(q_packed, k);
+            let q_val = f32(q_byte) * d;
+            let src1_offset = src1_idx_base + offset * 32 + j * 4 + k;
+            sum += q_val * f32(src1[src1_offset]);
+        }
+    }
+    return sum;
+}
+#enddecl(Q8_0)
+
+#decl(Q8_1)
+struct q8_1 {
+    d: f16,
+    m: f16,
+    qs: array<u32, 8>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block_q8_1 = src0[src0_idx_base + offset];
+    let d = f32(block_q8_1.d);
+    let m = f32(block_q8_1.m);
+    var sum: f32 = 0.0;
+    for (var j: u32 = 0; j < 8; j++) {
+        let q_packed = block_q8_1.qs[j];
+        for (var k: u32 = 0; k < 4; k++) {
+            let q_byte = get_byte_i32(q_packed, k);
+            let q_val = f32(q_byte) * d + m;
+            let src1_offset = src1_idx_base + offset * 32 + j * 4 + k;
+            sum += q_val * f32(src1[src1_offset]);
+        }
+    }
+    return sum;
+}
+#enddecl(Q8_1)
+
+#decl(Q2_K)
+// 16 blocks of 16 elements each
+struct q2_k {
+    scales: array<u32, 4>,
+    qs: array<u32, 16>,
+    d: f16,
+    dmin: f16
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block = src0[src0_idx_base + offset];
+    let d = f32(block.d);
+    let m = f32(block.dmin);
+    var sum = 0.0;
+    var src1_i = src1_idx_base + offset * 256;
+    var is: u32 = 0;
+    // 2 halves of the block (128 elements each)
+    for (var q_b_idx: u32 = 0; q_b_idx < 64; q_b_idx += 32) {
+        // 4 groups (each group has 2 blocks of 16 elements)
+        for (var shift: u32 = 0; shift < 8; shift += 2) {
+            // 2 blocks
+            for (var k: u32 = 0; k < 32; k += 16) {
+                let sc = get_byte(block.scales[is / 4], is % 4);
+                is++;
+                let dl = d * f32(sc & 0xF);
+                let ml = m * f32(sc >> 4);
+                for (var l: u32 = 0u; l < 16; l++) {
+                    let q_idx = q_b_idx + k + l;
+                    let q_byte = get_byte(block.qs[q_idx / 4], q_idx % 4);
+                    let qs_val = (q_byte >> shift) & 3;
+                    sum += (f32(qs_val) * dl - ml) * src1[src1_i];
+                    src1_i++;
+                }
+            }
+        }
+    }
+    return sum;
+}
+
+#enddecl(Q2_K)
+
+#decl(Q3_K)
+// 16 blocks of 16 elements each
+struct q3_k {
+    hmask: array<f16, 16>,
+    qs: array<f16, 32>,
+    scales: array<f16, 6>, // 6-bit quantized values
+    d: f16
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block = src0[src0_idx_base + offset];
+    let d = f32(block.d);
+
+    // extract 6-bit scales, which consist of 4-bits from first 8 bytes of scale,
+    // and 2-bits from the last 4 bytes
+    let kmask1: u32 = 0x03030303;
+    let kmask2: u32 = 0x0f0f0f0f;
+    var scale_vals: array<u32, 4>;
+    for (var i: u32 = 0; i < 4; i++) {
+        scale_vals[i] = bitcast<u32>(vec2(block.scales[2 * i], block.scales[2 * i + 1]));
+    }
+    var tmp: u32 = scale_vals[2];
+    scale_vals[2] = ((scale_vals[0] >> 4) & kmask2) | (((tmp >> 4) & kmask1) << 4);
+    scale_vals[3] = ((scale_vals[1] >> 4) & kmask2) | (((tmp >> 6) & kmask1) << 4);
+    scale_vals[0] = (scale_vals[0] & kmask2) | ((tmp & kmask1) << 4);
+    scale_vals[1] = (scale_vals[1] & kmask2) | (((tmp >> 2) & kmask1) << 4);
+
+    // convert arrays of f16 -> u32
+    var hmask_vals: array<u32, 8>;
+    for (var i: u32 = 0; i < 8; i++) {
+        hmask_vals[i] = bitcast<u32>(vec2(block.hmask[2 * i], block.hmask[2 * i + 1]));
+    }
+    var qs_vals: array<u32, 16>;
+    for (var i: u32 = 0; i < 16; i++) {
+        qs_vals[i] = bitcast<u32>(vec2(block.qs[2 * i], block.qs[2 * i + 1]));
+    }
+
+    var sum = 0.0;
+    var src1_i = src1_idx_base + offset * 256;
+    var is: u32 = 0;
+    var m: u32 = 1;
+    // 2 halves of the block (128 elements each)
+    for (var q_b_idx: u32 = 0; q_b_idx < 64; q_b_idx += 32) {
+        // 4 groups (each group has 2 blocks of 16 elements)
+        for (var shift: u32 = 0; shift < 8; shift += 2) {
+            // 2 blocks
+            for (var k: u32 = 0; k < 32; k += 16) {
+                let sc = get_byte(scale_vals[is / 4], is % 4);
+                is++;
+                let dl = d * (f32(sc) - 32.0);
+                for (var l: u32 = 0u; l < 16u; l++) {
+                    let q_idx = q_b_idx + k + l;
+                    let hm_idx = k + l;
+                    let q_byte = get_byte(qs_vals[q_idx / 4], q_idx % 4);
+                    let hmask_byte = get_byte(hmask_vals[hm_idx / 4], hm_idx % 4);
+                    let hm = select(4.0, 0.0, (hmask_byte & m) != 0);
+                    let qs_val = (q_byte >> shift) & 3;
+                    sum += ((f32(qs_val) - hm) * dl) * src1[src1_i];
+                    src1_i++;
+                }
+            }
+            m <<= 1;
+        }
+    }
+    return sum;
+}
+
+#enddecl(Q3_K)
+
+#decl(Q45_K_SCALE_MIN)
+
+fn get_scale_min(is: u32, scales: array<u32, 3>) -> vec2<f32> {
+    if (is < 4) {
+        let sc_byte = get_byte(scales[is / 4], is % 4);
+        let min_byte = get_byte(scales[(is + 4) / 4], is % 4);
+        return vec2(f32(sc_byte & 63), f32(min_byte & 63));
+    } else {
+        let sc_min_lo = get_byte(scales[(is + 4) / 4], (is + 4) % 4);
+        let sc_hi = get_byte(scales[(is - 4) / 4], (is - 4) % 4);
+        let min_hi = get_byte(scales[is / 4], is % 4);
+        let sc = (sc_min_lo & 0xF) | ((sc_hi >> 6) << 4);
+        let m = (sc_min_lo >> 4) | ((min_hi >> 6) << 4);
+        return vec2(f32(sc), f32(m));
+    }
+}
+
+#enddecl(Q45_K_SCALE_MIN)
+
+#decl(Q4_K)
+// 8 blocks of 32 elements each
+struct q4_k {
+    d: f16,
+    dmin: f16,
+    scales: array<u32, 3>,
+    qs: array<u32, 32>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block = src0[src0_idx_base + offset];
+    let d = f32(block.d);
+    let m = f32(block.dmin);
+    var sum = 0.0;
+    var src1_i = src1_idx_base + offset * 256;
+    var is: u32 = 0;
+    // 2 blocks each iteration
+    for (var q_b_idx: u32 = 0; q_b_idx < 128; q_b_idx += 32) {
+        for (var shift: u32 = 0; shift < 8; shift += 4) {
+            let scale_min = get_scale_min(is, block.scales);
+            is++;
+            let dl = d * scale_min.x;
+            let ml = m * scale_min.y;
+            for (var l: u32 = 0; l < 32; l++) {
+                let q_idx = q_b_idx + l;
+                let q_byte = get_byte(block.qs[q_idx / 4], q_idx % 4);
+                let qs_val = (q_byte >> shift) & 0xF;
+                sum += (f32(qs_val) * dl - ml) * src1[src1_i];
+                src1_i++;
+            }
+        }
+    }
+    return sum;
+}
+
+#enddecl(Q4_K)
+
+#decl(Q5_K)
+// 8 blocks of 32 elements each
+struct q5_k {
+    d: f16,
+    dmin: f16,
+    scales: array<u32, 3>,
+    qh: array<u32, 8>,
+    qs: array<u32, 32>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block = src0[src0_idx_base + offset];
+    let d = f32(block.d);
+    let m = f32(block.dmin);
+    var sum = 0.0;
+    var src1_i = src1_idx_base + offset * 256;
+    var is: u32 = 0;
+    var u: u32 = 1;
+    // 2 blocks each iteration
+    for (var q_b_idx: u32 = 0; q_b_idx < 128; q_b_idx += 32) {
+        for (var shift: u32 = 0; shift < 8; shift += 4) {
+            let scale_min = get_scale_min(is, block.scales);
+            is++;
+            let dl = d * scale_min.x;
+            let ml = m * scale_min.y;
+            for (var l: u32 = 0; l < 32; l++) {
+                let q_idx = q_b_idx + l;
+                let q_byte = get_byte(block.qs[q_idx / 4], q_idx % 4);
+                let qh_byte = get_byte(block.qh[l / 4], l % 4);
+                let qs_val = (q_byte >> shift) & 0xF;
+                let qh_val = select(0.0, 16.0, (qh_byte & u) != 0);
+                sum += ((f32(qs_val) + qh_val) * dl - ml) * src1[src1_i];
+               src1_i++;
+            }
+            u <<= 1;
+        }
+    }
+    return sum;
+}
+
+#enddecl(Q5_K)
+
+#decl(Q6_K)
+// 16 blocks of 16 elements each
+struct q6_k {
+    ql: array<f16, 64>,
+    qh: array<f16, 32>,
+    scales: array<f16, 8>,
+    d: f16
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block = src0[src0_idx_base + offset];
+    let d = f32(block.d);
+
+    // convert arrays of f16 -> u32
+    var ql_vals: array<u32, 32>;
+    for (var i: u32 = 0; i < 32; i++) {
+        ql_vals[i] = bitcast<u32>(vec2(block.ql[2 * i], block.ql[2 * i + 1]));
+    }
+    var qh_vals: array<u32, 16>;
+    for (var i: u32 = 0; i < 16; i++) {
+        qh_vals[i] = bitcast<u32>(vec2(block.qh[2 * i], block.qh[2 * i + 1]));
+    }
+    var scale_vals: array<u32, 4>;
+    for (var i: u32 = 0; i < 4; i++) {
+        scale_vals[i] = bitcast<u32>(vec2(block.scales[2 * i], block.scales[2 * i + 1]));
+    }
+
+    var sum = 0.0;
+    var src1_i = src1_idx_base + offset * 256;
+    var qh_b_idx: u32 = 0;
+    var sc_b_idx: u32 = 0;
+    for (var ql_b_idx: u32 = 0; ql_b_idx < 128; ql_b_idx += 64) {
+        for (var l: u32 = 0; l < 32; l++) {
+            let ql13_b = get_byte(ql_vals[(ql_b_idx + l) / 4], (ql_b_idx + l) % 4);
+            let ql24_b = get_byte(ql_vals[(ql_b_idx + l + 32) / 4], (ql_b_idx + l + 32) % 4);
+            let qh_b = get_byte(qh_vals[(qh_b_idx + l) / 4], (qh_b_idx + l) % 4);
+
+            let q1 = f32((ql13_b & 0xF) | ((qh_b & 3) << 4)) - 32.0;
+            let q2 = f32((ql24_b & 0xF) | (((qh_b >> 2) & 3) << 4)) - 32.0;
+            let q3 = f32((ql13_b >> 4) | (((qh_b >> 4) & 3) << 4)) - 32.0;
+            let q4 = f32((ql24_b >> 4) | (((qh_b >> 6) & 3) << 4)) - 32.0;
+
+            let is = l/16;
+            let is1 = sc_b_idx + is;
+            let sc1 = get_byte_i32(scale_vals[is1 / 4], is1 % 4);
+            let is2 = sc_b_idx + is + 2;
+            let sc2 = get_byte_i32(scale_vals[is2 / 4], is2 % 4);
+            let is3 = sc_b_idx + is + 4;
+            let sc3 = get_byte_i32(scale_vals[is3 / 4], is3 % 4);
+            let is4 = sc_b_idx + is + 6;
+            let sc4 = get_byte_i32(scale_vals[is4 / 4], is4 % 4);
+
+            sum += d * f32(sc1) * q1 * src1[src1_i + l];
+            sum += d * f32(sc2) * q2 * src1[src1_i + l + 32];
+            sum += d * f32(sc3) * q3 * src1[src1_i + l + 64];
+            sum += d * f32(sc4) * q4 * src1[src1_i + l + 96];
+        }
+        src1_i += 128;
+        qh_b_idx += 32;
+        sc_b_idx += 8;
+    }
+    return sum;
+}
+
+#enddecl(Q6_K)
+
+#decl(IQ23_TABLES)
+const kmask_iq2xs : array<u32, 2> = array<u32, 2>(
+    0x08040201u, // 1, 2, 4, 8
+    0x80402010u  // 16, 32, 64, 128
+);
+
+const ksigns_iq2xs: array<u32, 32> = array<u32, 32>(
+    0x03828100,0x87060584,0x8b0a0988,0x0f8e8d0c,
+    0x93121190,0x17969514,0x1b9a9918,0x9f1e1d9c,
+    0xa32221a0,0x27a6a524,0x2baaa928,0xaf2e2dac,
+    0x33b2b130,0xb73635b4,0xbb3a39b8,0x3fbebd3c,
+    0xc34241c0,0x47c6c544,0x4bcac948,0xcf4e4dcc,
+    0x53d2d150,0xd75655d4,0xdb5a59d8,0x5fdedd5c,
+    0x63e2e160,0xe76665e4,0xeb6a69e8,0x6feeed6c,
+    0xf37271f0,0x77f6f574,0x7bfaf978,0xff7e7dfc
+);
+#enddecl(IQ23_TABLES)
+
+#decl(IQ2_XXS)
+
+const iq2xxs_grid = array<u32, 512>(
+    0x08080808, 0x08080808, 0x0808082b, 0x08080808, 0x08081919, 0x08080808, 0x08082b08, 0x08080808,
+    0x08082b2b, 0x08080808, 0x08190819, 0x08080808, 0x08191908, 0x08080808, 0x082b0808, 0x08080808,
+    0x082b082b, 0x08080808, 0x082b2b08, 0x08080808, 0x082b2b2b, 0x08080808, 0x19080819, 0x08080808,
+    0x19081908, 0x08080808, 0x19190808, 0x08080808, 0x19192b08, 0x08080808, 0x192b0819, 0x08080808,
+    0x192b1908, 0x08080808, 0x2b080808, 0x08080808, 0x2b08082b, 0x08080808, 0x2b082b2b, 0x08080808,
+    0x2b2b082b, 0x08080808, 0x08080819, 0x08080819, 0x08081908, 0x08080819, 0x08190808, 0x08080819,
+    0x08191919, 0x08080819, 0x19080808, 0x08080819, 0x2b081908, 0x08080819, 0x2b192b08, 0x08080819,
+    0x08080808, 0x0808082b, 0x0808082b, 0x0808082b, 0x082b082b, 0x0808082b, 0x2b08082b, 0x0808082b,
+    0x08080819, 0x08081908, 0x08081908, 0x08081908, 0x08190808, 0x08081908, 0x082b0819, 0x08081908,
+    0x082b1908, 0x08081908, 0x19080808, 0x08081908, 0x1908082b, 0x08081908, 0x19082b08, 0x08081908,
+    0x192b0808, 0x08081908, 0x2b080819, 0x08081908, 0x2b081908, 0x08081908, 0x2b190808, 0x08081908,
+    0x2b2b1908, 0x08081908, 0x08080808, 0x08081919, 0x0808082b, 0x08081919, 0x08082b08, 0x08081919,
+    0x082b0808, 0x08081919, 0x1908192b, 0x08081919, 0x192b2b19, 0x08081919, 0x2b080808, 0x08081919,
+    0x2b190819, 0x08081919, 0x08082b19, 0x0808192b, 0x08190808, 0x0808192b, 0x19080808, 0x0808192b,
+    0x2b081908, 0x0808192b, 0x2b2b1908, 0x0808192b, 0x08080808, 0x08082b08, 0x08081919, 0x08082b08,
+    0x08082b08, 0x08082b08, 0x08191908, 0x08082b08, 0x082b2b08, 0x08082b08, 0x19080819, 0x08082b08,
+    0x19081908, 0x08082b08, 0x19190808, 0x08082b08, 0x1919082b, 0x08082b08, 0x2b082b08, 0x08082b08,
+    0x08081908, 0x08082b19, 0x19080808, 0x08082b19, 0x0808082b, 0x08082b2b, 0x08191908, 0x08082b2b,
+    0x08080819, 0x08190808, 0x08081908, 0x08190808, 0x08190808, 0x08190808, 0x082b0819, 0x08190808,
+    0x19080808, 0x08190808, 0x192b0808, 0x08190808, 0x2b081908, 0x08190808, 0x2b190808, 0x08190808,
+    0x2b191919, 0x08190808, 0x08080808, 0x08190819, 0x08082b08, 0x08190819, 0x082b0808, 0x08190819,
+    0x19190808, 0x08190819, 0x19192b2b, 0x08190819, 0x2b080808, 0x08190819, 0x082b1908, 0x0819082b,
+    0x19081919, 0x0819082b, 0x08080808, 0x08191908, 0x08082b08, 0x08191908, 0x082b0808, 0x08191908,
+    0x082b1919, 0x08191908, 0x19082b19, 0x08191908, 0x2b080808, 0x08191908, 0x08192b08, 0x08191919,
+    0x192b082b, 0x08191919, 0x08080808, 0x0819192b, 0x0819192b, 0x0819192b, 0x08080819, 0x08192b08,
+    0x08081908, 0x08192b08, 0x08190808, 0x08192b08, 0x19080808, 0x08192b08, 0x2b080819, 0x08192b08,
+    0x08080808, 0x08192b19, 0x08081919, 0x08192b19, 0x2b2b0808, 0x08192b19, 0x19190819, 0x08192b2b,
+    0x08080808, 0x082b0808, 0x0808082b, 0x082b0808, 0x08082b2b, 0x082b0808, 0x19081908, 0x082b0808,
+    0x192b0819, 0x082b0808, 0x2b080808, 0x082b0808, 0x2b08082b, 0x082b0808, 0x082b2b19, 0x082b0819,
+    0x19082b08, 0x082b0819, 0x08080808, 0x082b082b, 0x0808082b, 0x082b082b, 0x08080819, 0x082b1908,
+    0x08081908, 0x082b1908, 0x08190808, 0x082b1908, 0x19080808, 0x082b1908, 0x1919192b, 0x082b1908,
+    0x08080808, 0x082b1919, 0x19080819, 0x082b1919, 0x192b1908, 0x082b1919, 0x2b190808, 0x082b192b,
+    0x08082b08, 0x082b2b08, 0x082b0808, 0x082b2b08, 0x2b191908, 0x082b2b08, 0x19081908, 0x082b2b2b,
+    0x08080819, 0x19080808, 0x08081908, 0x19080808, 0x08190808, 0x19080808, 0x08192b08, 0x19080808,
+    0x082b0819, 0x19080808, 0x082b1908, 0x19080808, 0x19080808, 0x19080808, 0x19082b08, 0x19080808,
+    0x1919192b, 0x19080808, 0x192b0808, 0x19080808, 0x2b080819, 0x19080808, 0x2b081908, 0x19080808,
+    0x2b190808, 0x19080808, 0x08080808, 0x19080819, 0x082b0808, 0x19080819, 0x192b0819, 0x19080819,
+    0x2b080808, 0x19080819, 0x2b081919, 0x19080819, 0x08080819, 0x1908082b, 0x08190808, 0x1908082b,
+    0x19082b08, 0x1908082b, 0x1919192b, 0x1908082b, 0x192b2b08, 0x1908082b, 0x08080808, 0x19081908,
+    0x08082b08, 0x19081908, 0x082b0808, 0x19081908, 0x2b080808, 0x19081908, 0x2b192b19, 0x19081908,
+    0x0819082b, 0x19081919, 0x082b1908, 0x19081919, 0x08080808, 0x1908192b, 0x08080819, 0x19082b08,
+    0x08081908, 0x19082b08, 0x08190808, 0x19082b08, 0x19080808, 0x19082b08, 0x19081919, 0x19082b08,
+    0x08080808, 0x19082b19, 0x19192b08, 0x19082b19, 0x192b0819, 0x19082b19, 0x2b08082b, 0x19082b19,
+    0x19081919, 0x19082b2b, 0x2b190808, 0x19082b2b, 0x08080808, 0x19190808, 0x08082b08, 0x19190808,
+    0x08190819, 0x19190808, 0x08192b19, 0x19190808, 0x082b0808, 0x19190808, 0x2b080808, 0x19190808,
+    0x2b082b08, 0x19190808, 0x08081908, 0x19190819, 0x1908082b, 0x19190819, 0x2b2b1908, 0x19190819,
+    0x2b190819, 0x1919082b, 0x2b190808, 0x19191908, 0x2b19082b, 0x19191908, 0x08082b2b, 0x19191919,
+    0x08080819, 0x1919192b, 0x19191908, 0x1919192b, 0x08080808, 0x19192b08, 0x08190819, 0x19192b08,
+    0x08192b19, 0x19192b08, 0x192b1908, 0x19192b08, 0x19080808, 0x19192b19, 0x08082b08, 0x19192b2b,
+    0x08081908, 0x192b0808, 0x08190808, 0x192b0808, 0x19080808, 0x192b0808, 0x192b2b08, 0x192b0808,
+    0x08080808, 0x192b0819, 0x19191919, 0x192b0819, 0x08192b08, 0x192b082b, 0x192b0808, 0x192b082b,
+    0x08080808, 0x192b1908, 0x08081919, 0x192b1908, 0x08190808, 0x192b1919, 0x0819082b, 0x192b1919,
+    0x2b081908, 0x192b1919, 0x1908082b, 0x192b2b08, 0x08080808, 0x2b080808, 0x0808082b, 0x2b080808,
+    0x08082b2b, 0x2b080808, 0x19080819, 0x2b080808, 0x2b08082b, 0x2b080808, 0x08081908, 0x2b080819,
+    0x08192b08, 0x2b080819, 0x19080808, 0x2b080819, 0x08190819, 0x2b08082b, 0x08080819, 0x2b081908,
+    0x08081908, 0x2b081908, 0x08190808, 0x2b081908, 0x08191919, 0x2b081908, 0x19080808, 0x2b081908,
+    0x192b0808, 0x2b081908, 0x08080808, 0x2b081919, 0x1908192b, 0x2b081919, 0x2b191908, 0x2b081919,
+    0x08082b19, 0x2b08192b, 0x19080808, 0x2b08192b, 0x192b0808, 0x2b08192b, 0x0808082b, 0x2b082b08,
+    0x08081908, 0x2b082b19, 0x08190819, 0x2b082b2b, 0x08081908, 0x2b190808, 0x08190808, 0x2b190808,
+    0x082b1908, 0x2b190808, 0x19080808, 0x2b190808, 0x2b2b0819, 0x2b190808, 0x0819192b, 0x2b190819,
+    0x2b080808, 0x2b190819, 0x19081919, 0x2b19082b, 0x08080808, 0x2b191908, 0x082b082b, 0x2b191908,
+    0x19081908, 0x2b191908, 0x19190819, 0x2b191919, 0x2b080819, 0x2b192b08, 0x082b0808, 0x2b192b19,
+    0x0808082b, 0x2b2b0808, 0x19190808, 0x2b2b0808, 0x2b081919, 0x2b2b0808, 0x08082b19, 0x2b2b0819,
+    0x08080808, 0x2b2b082b, 0x08192b08, 0x2b2b1908, 0x19190808, 0x2b2b2b08, 0x08081908, 0x2b2b2b19
+);
+
+struct iq2_xxs {
+    d: f16,
+    qs: array<f16, 32>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block = src0[src0_idx_base + offset];
+    let d = f32(block.d);
+    var src1_i = src1_idx_base + offset * 256;
+    var sum = 0.0;
+    for (var ib: u32 = 0; ib < 32; ib += 4) {
+        let aux0 = bitcast<u32>(vec2(block.qs[ib], block.qs[ib + 1]));
+        let aux1 = bitcast<u32>(vec2(block.qs[ib + 2], block.qs[ib + 3]));
+        let db = d * (0.5 + f32(aux1 >> 28)) * 0.25;
+        for (var l: u32 = 0; l < 4; l++) {
+            let ig = get_byte(aux0, l) * 8;
+            let is = (aux1 >> (7 * l)) & 127;
+            let signs = get_byte(ksigns_iq2xs[is / 4], is % 4);
+            for (var j: u32 = 0; j < 8; j++) {
+                let g = get_byte(iq2xxs_grid[(ig + j) / 4], (ig + j) % 4);
+                let m = select(1.0, -1.0, (get_byte(kmask_iq2xs[j / 4], j % 4) & signs) != 0);
+                sum += db * f32(g) * m * src1[src1_i];
+                src1_i++;
+            }
+        }
+    }
+    return sum;
+}
+
+#enddecl(IQ2_XXS)
+
+#decl(IQ2_XS)
+const iq2xs_grid = array<u32, 1024>(
+    0x08080808, 0x08080808, 0x0808082b, 0x08080808, 0x08081919, 0x08080808, 0x08082b08, 0x08080808,
+    0x08082b2b, 0x08080808, 0x08190819, 0x08080808, 0x08191908, 0x08080808, 0x0819192b, 0x08080808,
+    0x08192b19, 0x08080808, 0x082b0808, 0x08080808, 0x082b082b, 0x08080808, 0x082b1919, 0x08080808,
+    0x082b2b08, 0x08080808, 0x19080819, 0x08080808, 0x19081908, 0x08080808, 0x1908192b, 0x08080808,
+    0x19082b19, 0x08080808, 0x19190808, 0x08080808, 0x1919082b, 0x08080808, 0x19191919, 0x08080808,
+    0x19192b08, 0x08080808, 0x192b0819, 0x08080808, 0x192b1908, 0x08080808, 0x2b080808, 0x08080808,
+    0x2b08082b, 0x08080808, 0x2b081919, 0x08080808, 0x2b082b08, 0x08080808, 0x2b190819, 0x08080808,
+    0x2b191908, 0x08080808, 0x2b192b19, 0x08080808, 0x2b2b0808, 0x08080808, 0x08080819, 0x08080819,
+    0x08081908, 0x08080819, 0x0808192b, 0x08080819, 0x08082b19, 0x08080819, 0x08190808, 0x08080819,
+    0x0819082b, 0x08080819, 0x08191919, 0x08080819, 0x08192b08, 0x08080819, 0x08192b2b, 0x08080819,
+    0x082b0819, 0x08080819, 0x082b1908, 0x08080819, 0x19080808, 0x08080819, 0x1908082b, 0x08080819,
+    0x19081919, 0x08080819, 0x19082b08, 0x08080819, 0x19190819, 0x08080819, 0x19191908, 0x08080819,
+    0x192b0808, 0x08080819, 0x192b2b08, 0x08080819, 0x2b080819, 0x08080819, 0x2b081908, 0x08080819,
+    0x2b190808, 0x08080819, 0x08080808, 0x0808082b, 0x0808082b, 0x0808082b, 0x08081919, 0x0808082b,
+    0x08082b08, 0x0808082b, 0x08190819, 0x0808082b, 0x08191908, 0x0808082b, 0x082b0808, 0x0808082b,
+    0x19080819, 0x0808082b, 0x19081908, 0x0808082b, 0x19190808, 0x0808082b, 0x19191919, 0x0808082b,
+    0x2b080808, 0x0808082b, 0x2b082b2b, 0x0808082b, 0x08080819, 0x08081908, 0x08081908, 0x08081908,
+    0x0808192b, 0x08081908, 0x08082b19, 0x08081908, 0x08190808, 0x08081908, 0x0819082b, 0x08081908,
+    0x08191919, 0x08081908, 0x08192b08, 0x08081908, 0x082b0819, 0x08081908, 0x082b1908, 0x08081908,
+    0x19080808, 0x08081908, 0x1908082b, 0x08081908, 0x19081919, 0x08081908, 0x19082b08, 0x08081908,
+    0x19190819, 0x08081908, 0x19191908, 0x08081908, 0x1919192b, 0x08081908, 0x192b0808, 0x08081908,
+    0x2b080819, 0x08081908, 0x2b081908, 0x08081908, 0x2b190808, 0x08081908, 0x08080808, 0x08081919,
+    0x0808082b, 0x08081919, 0x08081919, 0x08081919, 0x08082b08, 0x08081919, 0x08190819, 0x08081919,
+    0x08191908, 0x08081919, 0x082b0808, 0x08081919, 0x19080819, 0x08081919, 0x19081908, 0x08081919,
+    0x19190808, 0x08081919, 0x192b0819, 0x08081919, 0x2b080808, 0x08081919, 0x08080819, 0x0808192b,
+    0x08081908, 0x0808192b, 0x08190808, 0x0808192b, 0x082b192b, 0x0808192b, 0x19080808, 0x0808192b,
+    0x1908082b, 0x0808192b, 0x2b081908, 0x0808192b, 0x08080808, 0x08082b08, 0x0808082b, 0x08082b08,
+    0x08081919, 0x08082b08, 0x08082b08, 0x08082b08, 0x08082b2b, 0x08082b08, 0x08190819, 0x08082b08,
+    0x08191908, 0x08082b08, 0x082b0808, 0x08082b08, 0x082b1919, 0x08082b08, 0x19080819, 0x08082b08,
+    0x19081908, 0x08082b08, 0x19190808, 0x08082b08, 0x19192b08, 0x08082b08, 0x2b080808, 0x08082b08,
+    0x2b2b0808, 0x08082b08, 0x2b2b2b2b, 0x08082b08, 0x08080819, 0x08082b19, 0x08081908, 0x08082b19,
+    0x08190808, 0x08082b19, 0x19080808, 0x08082b19, 0x2b080819, 0x08082b19, 0x2b082b19, 0x08082b19,
+    0x08080808, 0x08082b2b, 0x082b0808, 0x08082b2b, 0x082b2b08, 0x08082b2b, 0x2b19192b, 0x08082b2b,
+    0x2b2b0808, 0x08082b2b, 0x08080819, 0x08190808, 0x08081908, 0x08190808, 0x0808192b, 0x08190808,
+    0x08082b19, 0x08190808, 0x08190808, 0x08190808, 0x0819082b, 0x08190808, 0x08191919, 0x08190808,
+    0x08192b08, 0x08190808, 0x082b0819, 0x08190808, 0x082b1908, 0x08190808, 0x19080808, 0x08190808,
+    0x1908082b, 0x08190808, 0x19081919, 0x08190808, 0x19082b08, 0x08190808, 0x19190819, 0x08190808,
+    0x19191908, 0x08190808, 0x192b0808, 0x08190808, 0x192b2b2b, 0x08190808, 0x2b080819, 0x08190808,
+    0x2b081908, 0x08190808, 0x2b190808, 0x08190808, 0x08080808, 0x08190819, 0x0808082b, 0x08190819,
+    0x08081919, 0x08190819, 0x08082b08, 0x08190819, 0x08190819, 0x08190819, 0x08191908, 0x08190819,
+    0x082b0808, 0x08190819, 0x19080819, 0x08190819, 0x19081908, 0x08190819, 0x19190808, 0x08190819,
+    0x2b080808, 0x08190819, 0x2b191908, 0x08190819, 0x2b19192b, 0x08190819, 0x08080819, 0x0819082b,
+    0x08081908, 0x0819082b, 0x0808192b, 0x0819082b, 0x08190808, 0x0819082b, 0x19080808, 0x0819082b,
+    0x192b0808, 0x0819082b, 0x08080808, 0x08191908, 0x0808082b, 0x08191908, 0x08081919, 0x08191908,
+    0x08082b08, 0x08191908, 0x08190819, 0x08191908, 0x08191908, 0x08191908, 0x082b0808, 0x08191908,
+    0x19080819, 0x08191908, 0x19081908, 0x08191908, 0x19082b19, 0x08191908, 0x19190808, 0x08191908,
+    0x192b1908, 0x08191908, 0x2b080808, 0x08191908, 0x08080819, 0x08191919, 0x08081908, 0x08191919,
+    0x08190808, 0x08191919, 0x19080808, 0x08191919, 0x08080808, 0x0819192b, 0x08191908, 0x0819192b,
+    0x19082b19, 0x0819192b, 0x08080819, 0x08192b08, 0x08081908, 0x08192b08, 0x08190808, 0x08192b08,
+    0x0819082b, 0x08192b08, 0x19080808, 0x08192b08, 0x19191908, 0x08192b08, 0x2b08192b, 0x08192b08,
+    0x08080808, 0x08192b19, 0x08081919, 0x08192b19, 0x192b192b, 0x08192b19, 0x19190819, 0x08192b2b,
+    0x2b2b2b19, 0x08192b2b, 0x08080808, 0x082b0808, 0x0808082b, 0x082b0808, 0x08081919, 0x082b0808,
+    0x08082b08, 0x082b0808, 0x08082b2b, 0x082b0808, 0x08190819, 0x082b0808, 0x08191908, 0x082b0808,
+    0x082b0808, 0x082b0808, 0x19080819, 0x082b0808, 0x19081908, 0x082b0808, 0x19190808, 0x082b0808,
+    0x2b080808, 0x082b0808, 0x2b2b0808, 0x082b0808, 0x08080819, 0x082b0819, 0x08081908, 0x082b0819,
+    0x08190808, 0x082b0819, 0x19080808, 0x082b0819, 0x19082b08, 0x082b0819, 0x192b1919, 0x082b0819,
+    0x08080808, 0x082b082b, 0x082b082b, 0x082b082b, 0x2b080808, 0x082b082b, 0x2b2b2b08, 0x082b082b,
+    0x08080819, 0x082b1908, 0x08081908, 0x082b1908, 0x08190808, 0x082b1908, 0x082b2b19, 0x082b1908,
+    0x19080808, 0x082b1908, 0x08080808, 0x082b1919, 0x19080819, 0x082b1919, 0x1919082b, 0x082b1919,
+    0x2b192b19, 0x082b1919, 0x08080819, 0x082b192b, 0x08192b2b, 0x082b192b, 0x2b2b192b, 0x082b192b,
+    0x08080808, 0x082b2b08, 0x08082b08, 0x082b2b08, 0x08082b2b, 0x082b2b08, 0x082b0808, 0x082b2b08,
+    0x19191919, 0x082b2b08, 0x2b082b08, 0x082b2b08, 0x2b2b082b, 0x082b2b08, 0x192b2b08, 0x082b2b19,
+    0x2b190808, 0x082b2b19, 0x08082b08, 0x082b2b2b, 0x082b0808, 0x082b2b2b, 0x2b08082b, 0x082b2b2b,
+    0x2b082b08, 0x082b2b2b, 0x2b082b2b, 0x082b2b2b, 0x08080819, 0x19080808, 0x08081908, 0x19080808,
+    0x0808192b, 0x19080808, 0x08082b19, 0x19080808, 0x08190808, 0x19080808, 0x0819082b, 0x19080808,
+    0x08191919, 0x19080808, 0x08192b08, 0x19080808, 0x082b0819, 0x19080808, 0x082b1908, 0x19080808,
+    0x19080808, 0x19080808, 0x1908082b, 0x19080808, 0x19081919, 0x19080808, 0x19082b08, 0x19080808,
+    0x19082b2b, 0x19080808, 0x19190819, 0x19080808, 0x19191908, 0x19080808, 0x192b0808, 0x19080808,
+    0x192b1919, 0x19080808, 0x2b080819, 0x19080808, 0x2b081908, 0x19080808, 0x2b190808, 0x19080808,
+    0x08080808, 0x19080819, 0x0808082b, 0x19080819, 0x08081919, 0x19080819, 0x08082b08, 0x19080819,
+    0x08190819, 0x19080819, 0x08191908, 0x19080819, 0x082b0808, 0x19080819, 0x19080819, 0x19080819,
+    0x19081908, 0x19080819, 0x19190808, 0x19080819, 0x2b080808, 0x19080819, 0x2b081919, 0x19080819,
+    0x2b2b082b, 0x19080819, 0x08080819, 0x1908082b, 0x08081908, 0x1908082b, 0x08190808, 0x1908082b,
+    0x0819082b, 0x1908082b, 0x082b2b19, 0x1908082b, 0x19080808, 0x1908082b, 0x08080808, 0x19081908,
+    0x0808082b, 0x19081908, 0x08081919, 0x19081908, 0x08082b08, 0x19081908, 0x08190819, 0x19081908,
+    0x08191908, 0x19081908, 0x08192b19, 0x19081908, 0x082b0808, 0x19081908, 0x19080819, 0x19081908,
+    0x19081908, 0x19081908, 0x19190808, 0x19081908, 0x2b080808, 0x19081908, 0x2b191908, 0x19081908,
+    0x08080819, 0x19081919, 0x08081908, 0x19081919, 0x08190808, 0x19081919, 0x082b1908, 0x19081919,
+    0x19080808, 0x19081919, 0x2b192b2b, 0x19081919, 0x08080808, 0x1908192b, 0x08082b2b, 0x1908192b,
+    0x19081908, 0x1908192b, 0x19190808, 0x1908192b, 0x08080819, 0x19082b08, 0x08081908, 0x19082b08,
+    0x08190808, 0x19082b08, 0x19080808, 0x19082b08, 0x19081919, 0x19082b08, 0x19191908, 0x19082b08,
+    0x192b082b, 0x19082b08, 0x08080808, 0x19082b19, 0x08190819, 0x19082b19, 0x19081908, 0x19082b19,
+    0x19190808, 0x19082b19, 0x192b2b19, 0x19082b19, 0x08081908, 0x19082b2b, 0x08080808, 0x19190808,
+    0x0808082b, 0x19190808, 0x08081919, 0x19190808, 0x08082b08, 0x19190808, 0x08190819, 0x19190808,
+    0x08191908, 0x19190808, 0x082b0808, 0x19190808, 0x082b2b08, 0x19190808, 0x19080819, 0x19190808,
+    0x19081908, 0x19190808, 0x19190808, 0x19190808, 0x2b080808, 0x19190808, 0x08080819, 0x19190819,
+    0x08081908, 0x19190819, 0x08190808, 0x19190819, 0x08191919, 0x19190819, 0x19080808, 0x19190819,
+    0x1908082b, 0x19190819, 0x08080808, 0x1919082b, 0x19081908, 0x1919082b, 0x2b2b2b2b, 0x1919082b,
+    0x08080819, 0x19191908, 0x08081908, 0x19191908, 0x08190808, 0x19191908, 0x082b0819, 0x19191908,
+    0x19080808, 0x19191908, 0x192b0808, 0x19191908, 0x2b080819, 0x19191908, 0x2b2b0819, 0x19191908,
+    0x08080808, 0x19191919, 0x08082b08, 0x19191919, 0x2b080808, 0x19191919, 0x2b082b08, 0x19191919,
+    0x082b0819, 0x1919192b, 0x192b2b08, 0x1919192b, 0x2b2b0819, 0x1919192b, 0x08080808, 0x19192b08,
+    0x08191908, 0x19192b08, 0x19080819, 0x19192b08, 0x19190808, 0x19192b08, 0x2b192b19, 0x19192b08,
+    0x08192b2b, 0x19192b19, 0x19080808, 0x19192b19, 0x1908082b, 0x19192b19, 0x2b081919, 0x19192b2b,
+    0x08080819, 0x192b0808, 0x08081908, 0x192b0808, 0x08190808, 0x192b0808, 0x19080808, 0x192b0808,
+    0x19191908, 0x192b0808, 0x192b082b, 0x192b0808, 0x2b08192b, 0x192b0808, 0x2b2b2b19, 0x192b0808,
+    0x08080808, 0x192b0819, 0x082b1908, 0x192b082b, 0x19082b2b, 0x192b082b, 0x2b19082b, 0x192b082b,
+    0x08080808, 0x192b1908, 0x0819192b, 0x192b1908, 0x08190808, 0x192b1919, 0x19080808, 0x192b1919,
+    0x19081919, 0x192b1919, 0x2b2b1908, 0x192b1919, 0x08080819, 0x192b2b08, 0x192b2b2b, 0x192b2b08,
+    0x082b1919, 0x192b2b19, 0x0808192b, 0x192b2b2b, 0x19191908, 0x192b2b2b, 0x192b082b, 0x192b2b2b,
+    0x08080808, 0x2b080808, 0x0808082b, 0x2b080808, 0x08081919, 0x2b080808, 0x08082b08, 0x2b080808,
+    0x08190819, 0x2b080808, 0x08191908, 0x2b080808, 0x082b0808, 0x2b080808, 0x082b2b2b, 0x2b080808,
+    0x19080819, 0x2b080808, 0x19081908, 0x2b080808, 0x19190808, 0x2b080808, 0x2b080808, 0x2b080808,
+    0x2b08082b, 0x2b080808, 0x2b2b2b08, 0x2b080808, 0x2b2b2b2b, 0x2b080808, 0x08080819, 0x2b080819,
+    0x08081908, 0x2b080819, 0x0808192b, 0x2b080819, 0x08190808, 0x2b080819, 0x19080808, 0x2b080819,
+    0x19190819, 0x2b080819, 0x19192b19, 0x2b080819, 0x08080808, 0x2b08082b, 0x082b0808, 0x2b08082b,
+    0x2b080808, 0x2b08082b, 0x2b08082b, 0x2b08082b, 0x2b2b0808, 0x2b08082b, 0x2b2b2b08, 0x2b08082b,
+    0x08080819, 0x2b081908, 0x08081908, 0x2b081908, 0x08190808, 0x2b081908, 0x0819082b, 0x2b081908,
+    0x08191919, 0x2b081908, 0x19080808, 0x2b081908, 0x192b0808, 0x2b081908, 0x2b082b19, 0x2b081908,
+    0x08080808, 0x2b081919, 0x19081908, 0x2b081919, 0x2b2b1919, 0x2b081919, 0x08192b08, 0x2b08192b,
+    0x192b2b2b, 0x2b08192b, 0x08080808, 0x2b082b08, 0x08082b08, 0x2b082b08, 0x082b1919, 0x2b082b08,
+    0x19192b2b, 0x2b082b08, 0x2b080808, 0x2b082b08, 0x2b08082b, 0x2b082b08, 0x2b2b2b08, 0x2b082b08,
+    0x0808192b, 0x2b082b19, 0x082b082b, 0x2b082b2b, 0x2b080808, 0x2b082b2b, 0x2b082b08, 0x2b082b2b,
+    0x2b19192b, 0x2b082b2b, 0x2b2b2b08, 0x2b082b2b, 0x08080819, 0x2b190808, 0x08081908, 0x2b190808,
+    0x08190808, 0x2b190808, 0x19080808, 0x2b190808, 0x1919192b, 0x2b190808, 0x2b081908, 0x2b190808,
+    0x08080808, 0x2b190819, 0x082b082b, 0x2b190819, 0x192b1908, 0x2b190819, 0x1919192b, 0x2b19082b,
+    0x2b082b19, 0x2b19082b, 0x08080808, 0x2b191908, 0x08081919, 0x2b191908, 0x19081908, 0x2b191908,
+    0x19190808, 0x2b191908, 0x19192b08, 0x2b191908, 0x082b2b19, 0x2b191919, 0x2b190808, 0x2b191919,
+    0x2b19082b, 0x2b191919, 0x19080819, 0x2b19192b, 0x19190819, 0x2b192b08, 0x2b2b192b, 0x2b192b08,
+    0x19082b19, 0x2b192b19, 0x08191919, 0x2b192b2b, 0x192b0808, 0x2b192b2b, 0x08080808, 0x2b2b0808,
+    0x0808082b, 0x2b2b0808, 0x08082b08, 0x2b2b0808, 0x08082b2b, 0x2b2b0808, 0x082b0808, 0x2b2b0808,
+    0x082b2b2b, 0x2b2b0808, 0x2b2b0808, 0x2b2b0808, 0x19190819, 0x2b2b0819, 0x19192b19, 0x2b2b0819,
+    0x2b2b192b, 0x2b2b0819, 0x08080808, 0x2b2b082b, 0x0808082b, 0x2b2b082b, 0x08082b08, 0x2b2b082b,
+    0x082b2b2b, 0x2b2b082b, 0x2b080808, 0x2b2b082b, 0x2b2b0808, 0x2b2b082b, 0x19080808, 0x2b2b1908,
+    0x2b191919, 0x2b2b1908, 0x192b1919, 0x2b2b192b, 0x2b192b08, 0x2b2b192b, 0x08082b2b, 0x2b2b2b08,
+    0x082b0808, 0x2b2b2b08, 0x082b082b, 0x2b2b2b08, 0x082b2b08, 0x2b2b2b08, 0x2b2b0808, 0x2b2b2b08,
+    0x2b2b2b08, 0x2b2b2b08, 0x08081908, 0x2b2b2b19, 0x2b081908, 0x2b2b2b19, 0x2b08192b, 0x2b2b2b19,
+    0x082b2b08, 0x2b2b2b2b, 0x082b2b2b, 0x2b2b2b2b, 0x2b190819, 0x2b2b2b2b, 0x2b2b2b2b, 0x2b2b2b2b
+);
+
+struct iq2_xs {
+    d: f16,
+    qs: array<f16, 32>,
+    scales: array<f16, 4>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block = src0[src0_idx_base + offset];
+    let d = f32(block.d);
+    var src1_i = src1_idx_base + offset * 256;
+    var scale_vals = array<u32, 2>(
+        bitcast<u32>(vec2(block.scales[0], block.scales[1])),
+        bitcast<u32>(vec2(block.scales[2], block.scales[3]))
+    );
+    var sum = 0.0;
+    for (var ib: u32 = 0; ib < 32; ib += 4) {
+        let s = get_byte(scale_vals[ib / 16], (ib % 16) / 4);
+        let db = array<f32, 2>(
+            d * (0.5 + f32(s & 0xF)) * 0.25,
+            d * (0.5 + f32(s >> 4)) * 0.25
+        );
+        for (var l: u32 = 0; l < 4; l++) {
+            let qs_val = bitcast<u32>(vec2(block.qs[ib + l], 0.0));
+            let ig = (qs_val & 511) * 8;
+            let is = qs_val >> 9;
+            let signs = get_byte(ksigns_iq2xs[is / 4], is % 4);
+            let dl = db[l/2];
+            for (var j: u32 = 0; j < 8; j++) {
+                let g = get_byte(iq2xs_grid[(ig + j) / 4], (ig + j) % 4);
+                let m = select(1.0, -1.0, (get_byte(kmask_iq2xs[j / 4], j % 4) & signs) != 0);
+                sum += dl * f32(g) * m * src1[src1_i];
+                src1_i++;
+            }
+        }
+    }
+    return sum;
+}
+
+#enddecl(IQ2_XS)
+
+#decl(IQ2_S)
+
+const iq2s_grid = array<u32, 2048>(
+    0x08080808, 0x08080808, 0x0808082b, 0x08080808, 0x08081919, 0x08080808, 0x08082b08, 0x08080808,
+    0x08082b2b, 0x08080808, 0x08190819, 0x08080808, 0x08191908, 0x08080808, 0x0819192b, 0x08080808,
+    0x08192b19, 0x08080808, 0x082b0808, 0x08080808, 0x082b082b, 0x08080808, 0x082b1919, 0x08080808,
+    0x082b2b08, 0x08080808, 0x19080819, 0x08080808, 0x19081908, 0x08080808, 0x1908192b, 0x08080808,
+    0x19082b19, 0x08080808, 0x19190808, 0x08080808, 0x1919082b, 0x08080808, 0x19191919, 0x08080808,
+    0x19192b08, 0x08080808, 0x192b0819, 0x08080808, 0x192b1908, 0x08080808, 0x192b192b, 0x08080808,
+    0x192b2b19, 0x08080808, 0x2b080808, 0x08080808, 0x2b08082b, 0x08080808, 0x2b081919, 0x08080808,
+    0x2b082b08, 0x08080808, 0x2b190819, 0x08080808, 0x2b191908, 0x08080808, 0x2b2b0808, 0x08080808,
+    0x2b2b1919, 0x08080808, 0x2b2b2b2b, 0x08080808, 0x08080819, 0x08080819, 0x08081908, 0x08080819,
+    0x0808192b, 0x08080819, 0x08082b19, 0x08080819, 0x08190808, 0x08080819, 0x0819082b, 0x08080819,
+    0x08191919, 0x08080819, 0x08192b08, 0x08080819, 0x082b0819, 0x08080819, 0x082b1908, 0x08080819,
+    0x19080808, 0x08080819, 0x1908082b, 0x08080819, 0x19081919, 0x08080819, 0x19082b08, 0x08080819,
+    0x19190819, 0x08080819, 0x19191908, 0x08080819, 0x1919192b, 0x08080819, 0x19192b19, 0x08080819,
+    0x192b0808, 0x08080819, 0x192b1919, 0x08080819, 0x192b2b08, 0x08080819, 0x2b080819, 0x08080819,
+    0x2b081908, 0x08080819, 0x2b190808, 0x08080819, 0x2b19082b, 0x08080819, 0x2b191919, 0x08080819,
+    0x2b2b0819, 0x08080819, 0x2b2b1908, 0x08080819, 0x08080808, 0x0808082b, 0x0808082b, 0x0808082b,
+    0x08081919, 0x0808082b, 0x08082b08, 0x0808082b, 0x08190819, 0x0808082b, 0x08191908, 0x0808082b,
+    0x082b0808, 0x0808082b, 0x082b2b2b, 0x0808082b, 0x19080819, 0x0808082b, 0x19081908, 0x0808082b,
+    0x1908192b, 0x0808082b, 0x19082b19, 0x0808082b, 0x19190808, 0x0808082b, 0x19191919, 0x0808082b,
+    0x2b080808, 0x0808082b, 0x2b081919, 0x0808082b, 0x2b082b2b, 0x0808082b, 0x2b191908, 0x0808082b,
+    0x2b2b082b, 0x0808082b, 0x08080819, 0x08081908, 0x08081908, 0x08081908, 0x0808192b, 0x08081908,
+    0x08082b19, 0x08081908, 0x08190808, 0x08081908, 0x0819082b, 0x08081908, 0x08191919, 0x08081908,
+    0x08192b08, 0x08081908, 0x082b0819, 0x08081908, 0x082b1908, 0x08081908, 0x082b192b, 0x08081908,
+    0x082b2b19, 0x08081908, 0x19080808, 0x08081908, 0x1908082b, 0x08081908, 0x19081919, 0x08081908,
+    0x19082b08, 0x08081908, 0x19082b2b, 0x08081908, 0x19190819, 0x08081908, 0x19191908, 0x08081908,
+    0x1919192b, 0x08081908, 0x19192b19, 0x08081908, 0x192b0808, 0x08081908, 0x192b082b, 0x08081908,
+    0x192b1919, 0x08081908, 0x2b080819, 0x08081908, 0x2b081908, 0x08081908, 0x2b08192b, 0x08081908,
+    0x2b082b19, 0x08081908, 0x2b190808, 0x08081908, 0x2b191919, 0x08081908, 0x2b192b08, 0x08081908,
+    0x2b2b0819, 0x08081908, 0x2b2b1908, 0x08081908, 0x08080808, 0x08081919, 0x0808082b, 0x08081919,
+    0x08081919, 0x08081919, 0x08082b08, 0x08081919, 0x08082b2b, 0x08081919, 0x08190819, 0x08081919,
+    0x08191908, 0x08081919, 0x0819192b, 0x08081919, 0x08192b19, 0x08081919, 0x082b0808, 0x08081919,
+    0x082b1919, 0x08081919, 0x082b2b08, 0x08081919, 0x19080819, 0x08081919, 0x19081908, 0x08081919,
+    0x1908192b, 0x08081919, 0x19082b19, 0x08081919, 0x19190808, 0x08081919, 0x1919082b, 0x08081919,
+    0x19191919, 0x08081919, 0x19192b08, 0x08081919, 0x192b0819, 0x08081919, 0x192b1908, 0x08081919,
+    0x2b080808, 0x08081919, 0x2b08082b, 0x08081919, 0x2b081919, 0x08081919, 0x2b082b08, 0x08081919,
+    0x2b190819, 0x08081919, 0x2b191908, 0x08081919, 0x2b2b0808, 0x08081919, 0x08080819, 0x0808192b,
+    0x08081908, 0x0808192b, 0x0808192b, 0x0808192b, 0x08082b19, 0x0808192b, 0x08190808, 0x0808192b,
+    0x08191919, 0x0808192b, 0x19080808, 0x0808192b, 0x19081919, 0x0808192b, 0x19082b08, 0x0808192b,
+    0x19190819, 0x0808192b, 0x19191908, 0x0808192b, 0x192b0808, 0x0808192b, 0x2b080819, 0x0808192b,
+    0x2b081908, 0x0808192b, 0x2b190808, 0x0808192b, 0x08080808, 0x08082b08, 0x0808082b, 0x08082b08,
+    0x08081919, 0x08082b08, 0x08082b08, 0x08082b08, 0x08190819, 0x08082b08, 0x08191908, 0x08082b08,
+    0x0819192b, 0x08082b08, 0x08192b19, 0x08082b08, 0x082b0808, 0x08082b08, 0x082b1919, 0x08082b08,
+    0x082b2b2b, 0x08082b08, 0x19080819, 0x08082b08, 0x19081908, 0x08082b08, 0x1908192b, 0x08082b08,
+    0x19082b19, 0x08082b08, 0x19190808, 0x08082b08, 0x1919082b, 0x08082b08, 0x19191919, 0x08082b08,
+    0x19192b08, 0x08082b08, 0x192b0819, 0x08082b08, 0x192b1908, 0x08082b08, 0x2b080808, 0x08082b08,
+    0x2b081919, 0x08082b08, 0x2b191908, 0x08082b08, 0x2b2b2b2b, 0x08082b08, 0x08080819, 0x08082b19,
+    0x08081908, 0x08082b19, 0x08190808, 0x08082b19, 0x0819082b, 0x08082b19, 0x08191919, 0x08082b19,
+    0x08192b08, 0x08082b19, 0x082b0819, 0x08082b19, 0x19080808, 0x08082b19, 0x19081919, 0x08082b19,
+    0x19082b08, 0x08082b19, 0x19190819, 0x08082b19, 0x19191908, 0x08082b19, 0x192b0808, 0x08082b19,
+    0x2b080819, 0x08082b19, 0x2b190808, 0x08082b19, 0x08080808, 0x08082b2b, 0x08190819, 0x08082b2b,
+    0x08191908, 0x08082b2b, 0x082b082b, 0x08082b2b, 0x082b2b08, 0x08082b2b, 0x082b2b2b, 0x08082b2b,
+    0x19190808, 0x08082b2b, 0x2b192b19, 0x08082b2b, 0x08080819, 0x08190808, 0x08081908, 0x08190808,
+    0x0808192b, 0x08190808, 0x08082b19, 0x08190808, 0x08190808, 0x08190808, 0x0819082b, 0x08190808,
+    0x08191919, 0x08190808, 0x08192b08, 0x08190808, 0x082b0819, 0x08190808, 0x082b1908, 0x08190808,
+    0x082b192b, 0x08190808, 0x19080808, 0x08190808, 0x1908082b, 0x08190808, 0x19081919, 0x08190808,
+    0x19082b08, 0x08190808, 0x19190819, 0x08190808, 0x19191908, 0x08190808, 0x1919192b, 0x08190808,
+    0x19192b19, 0x08190808, 0x192b0808, 0x08190808, 0x192b082b, 0x08190808, 0x192b1919, 0x08190808,
+    0x192b2b08, 0x08190808, 0x2b080819, 0x08190808, 0x2b081908, 0x08190808, 0x2b08192b, 0x08190808,
+    0x2b190808, 0x08190808, 0x2b191919, 0x08190808, 0x2b192b08, 0x08190808, 0x2b2b0819, 0x08190808,
+    0x2b2b1908, 0x08190808, 0x08080808, 0x08190819, 0x0808082b, 0x08190819, 0x08081919, 0x08190819,
+    0x08082b08, 0x08190819, 0x08082b2b, 0x08190819, 0x08190819, 0x08190819, 0x08191908, 0x08190819,
+    0x0819192b, 0x08190819, 0x08192b19, 0x08190819, 0x082b0808, 0x08190819, 0x082b082b, 0x08190819,
+    0x082b1919, 0x08190819, 0x082b2b08, 0x08190819, 0x19080819, 0x08190819, 0x19081908, 0x08190819,
+    0x1908192b, 0x08190819, 0x19082b19, 0x08190819, 0x19190808, 0x08190819, 0x1919082b, 0x08190819,
+    0x19191919, 0x08190819, 0x19192b08, 0x08190819, 0x192b0819, 0x08190819, 0x192b1908, 0x08190819,
+    0x2b080808, 0x08190819, 0x2b08082b, 0x08190819, 0x2b081919, 0x08190819, 0x2b082b08, 0x08190819,
+    0x2b190819, 0x08190819, 0x2b191908, 0x08190819, 0x08080819, 0x0819082b, 0x08081908, 0x0819082b,
+    0x08082b19, 0x0819082b, 0x08190808, 0x0819082b, 0x08191919, 0x0819082b, 0x082b0819, 0x0819082b,
+    0x082b1908, 0x0819082b, 0x19080808, 0x0819082b, 0x19081919, 0x0819082b, 0x19190819, 0x0819082b,
+    0x19191908, 0x0819082b, 0x2b080819, 0x0819082b, 0x2b081908, 0x0819082b, 0x2b190808, 0x0819082b,
+    0x08080808, 0x08191908, 0x0808082b, 0x08191908, 0x08081919, 0x08191908, 0x08082b08, 0x08191908,
+    0x08190819, 0x08191908, 0x08191908, 0x08191908, 0x0819192b, 0x08191908, 0x08192b19, 0x08191908,
+    0x082b0808, 0x08191908, 0x082b1919, 0x08191908, 0x082b2b08, 0x08191908, 0x19080819, 0x08191908,
+    0x19081908, 0x08191908, 0x1908192b, 0x08191908, 0x19082b19, 0x08191908, 0x19190808, 0x08191908,
+    0x1919082b, 0x08191908, 0x19191919, 0x08191908, 0x19192b08, 0x08191908, 0x192b0819, 0x08191908,
+    0x192b1908, 0x08191908, 0x2b080808, 0x08191908, 0x2b08082b, 0x08191908, 0x2b081919, 0x08191908,
+    0x2b082b08, 0x08191908, 0x2b190819, 0x08191908, 0x2b191908, 0x08191908, 0x2b2b0808, 0x08191908,
+    0x08080819, 0x08191919, 0x08081908, 0x08191919, 0x0808192b, 0x08191919, 0x08082b19, 0x08191919,
+    0x08190808, 0x08191919, 0x0819082b, 0x08191919, 0x08191919, 0x08191919, 0x08192b08, 0x08191919,
+    0x082b0819, 0x08191919, 0x082b1908, 0x08191919, 0x19080808, 0x08191919, 0x1908082b, 0x08191919,
+    0x19081919, 0x08191919, 0x19082b08, 0x08191919, 0x19190819, 0x08191919, 0x19191908, 0x08191919,
+    0x192b0808, 0x08191919, 0x2b080819, 0x08191919, 0x2b081908, 0x08191919, 0x2b190808, 0x08191919,
+    0x08080808, 0x0819192b, 0x08081919, 0x0819192b, 0x08082b08, 0x0819192b, 0x08190819, 0x0819192b,
+    0x08191908, 0x0819192b, 0x082b0808, 0x0819192b, 0x19080819, 0x0819192b, 0x19081908, 0x0819192b,
+    0x19190808, 0x0819192b, 0x2b080808, 0x0819192b, 0x2b2b2b2b, 0x0819192b, 0x08080819, 0x08192b08,
+    0x08081908, 0x08192b08, 0x0808192b, 0x08192b08, 0x08082b19, 0x08192b08, 0x08190808, 0x08192b08,
+    0x08191919, 0x08192b08, 0x08192b08, 0x08192b08, 0x082b0819, 0x08192b08, 0x19080808, 0x08192b08,
+    0x1908082b, 0x08192b08, 0x19081919, 0x08192b08, 0x19082b08, 0x08192b08, 0x19190819, 0x08192b08,
+    0x19191908, 0x08192b08, 0x192b0808, 0x08192b08, 0x2b080819, 0x08192b08, 0x2b081908, 0x08192b08,
+    0x08080808, 0x08192b19, 0x0808082b, 0x08192b19, 0x08081919, 0x08192b19, 0x08082b08, 0x08192b19,
+    0x08190819, 0x08192b19, 0x08191908, 0x08192b19, 0x082b0808, 0x08192b19, 0x19080819, 0x08192b19,
+    0x19081908, 0x08192b19, 0x19190808, 0x08192b19, 0x192b2b19, 0x08192b19, 0x2b2b082b, 0x08192b19,
+    0x08081908, 0x08192b2b, 0x08190808, 0x08192b2b, 0x19080808, 0x08192b2b, 0x1919192b, 0x08192b2b,
+    0x08080808, 0x082b0808, 0x0808082b, 0x082b0808, 0x08081919, 0x082b0808, 0x08082b08, 0x082b0808,
+    0x08190819, 0x082b0808, 0x08191908, 0x082b0808, 0x0819192b, 0x082b0808, 0x08192b19, 0x082b0808,
+    0x082b0808, 0x082b0808, 0x082b1919, 0x082b0808, 0x082b2b2b, 0x082b0808, 0x19080819, 0x082b0808,
+    0x19081908, 0x082b0808, 0x19190808, 0x082b0808, 0x1919082b, 0x082b0808, 0x19191919, 0x082b0808,
+    0x192b1908, 0x082b0808, 0x2b080808, 0x082b0808, 0x2b082b2b, 0x082b0808, 0x2b191908, 0x082b0808,
+    0x2b2b2b2b, 0x082b0808, 0x08080819, 0x082b0819, 0x08081908, 0x082b0819, 0x08190808, 0x082b0819,
+    0x0819082b, 0x082b0819, 0x08191919, 0x082b0819, 0x082b0819, 0x082b0819, 0x19080808, 0x082b0819,
+    0x1908082b, 0x082b0819, 0x19081919, 0x082b0819, 0x19190819, 0x082b0819, 0x19191908, 0x082b0819,
+    0x192b0808, 0x082b0819, 0x2b080819, 0x082b0819, 0x2b081908, 0x082b0819, 0x2b190808, 0x082b0819,
+    0x08080808, 0x082b082b, 0x08082b2b, 0x082b082b, 0x082b082b, 0x082b082b, 0x082b2b08, 0x082b082b,
+    0x082b2b2b, 0x082b082b, 0x19081908, 0x082b082b, 0x19190808, 0x082b082b, 0x2b082b08, 0x082b082b,
+    0x2b082b2b, 0x082b082b, 0x2b2b2b08, 0x082b082b, 0x08080819, 0x082b1908, 0x08081908, 0x082b1908,
+    0x0808192b, 0x082b1908, 0x08082b19, 0x082b1908, 0x08190808, 0x082b1908, 0x08191919, 0x082b1908,
+    0x08192b08, 0x082b1908, 0x082b0819, 0x082b1908, 0x082b1908, 0x082b1908, 0x19080808, 0x082b1908,
+    0x1908082b, 0x082b1908, 0x19081919, 0x082b1908, 0x19082b08, 0x082b1908, 0x19190819, 0x082b1908,
+    0x19191908, 0x082b1908, 0x192b0808, 0x082b1908, 0x2b080819, 0x082b1908, 0x2b081908, 0x082b1908,
+    0x2b190808, 0x082b1908, 0x08080808, 0x082b1919, 0x08081919, 0x082b1919, 0x08082b08, 0x082b1919,
+    0x08190819, 0x082b1919, 0x08191908, 0x082b1919, 0x082b0808, 0x082b1919, 0x19080819, 0x082b1919,
+    0x19081908, 0x082b1919, 0x19190808, 0x082b1919, 0x192b192b, 0x082b1919, 0x2b080808, 0x082b1919,
+    0x08080819, 0x082b192b, 0x08081908, 0x082b192b, 0x08190808, 0x082b192b, 0x19080808, 0x082b192b,
+    0x19192b19, 0x082b192b, 0x08080808, 0x082b2b08, 0x08081919, 0x082b2b08, 0x08190819, 0x082b2b08,
+    0x08191908, 0x082b2b08, 0x19080819, 0x082b2b08, 0x19081908, 0x082b2b08, 0x19190808, 0x082b2b08,
+    0x2b082b2b, 0x082b2b08, 0x2b2b2b2b, 0x082b2b08, 0x08080819, 0x082b2b19, 0x08081908, 0x082b2b19,
+    0x08190808, 0x082b2b19, 0x2b191919, 0x082b2b19, 0x08082b2b, 0x082b2b2b, 0x082b082b, 0x082b2b2b,
+    0x192b1908, 0x082b2b2b, 0x2b082b08, 0x082b2b2b, 0x2b082b2b, 0x082b2b2b, 0x08080819, 0x19080808,
+    0x08081908, 0x19080808, 0x0808192b, 0x19080808, 0x08082b19, 0x19080808, 0x08190808, 0x19080808,
+    0x0819082b, 0x19080808, 0x08191919, 0x19080808, 0x08192b08, 0x19080808, 0x08192b2b, 0x19080808,
+    0x082b0819, 0x19080808, 0x082b1908, 0x19080808, 0x082b192b, 0x19080808, 0x19080808, 0x19080808,
+    0x1908082b, 0x19080808, 0x19081919, 0x19080808, 0x19082b08, 0x19080808, 0x19082b2b, 0x19080808,
+    0x19190819, 0x19080808, 0x19191908, 0x19080808, 0x1919192b, 0x19080808, 0x19192b19, 0x19080808,
+    0x192b0808, 0x19080808, 0x192b082b, 0x19080808, 0x192b1919, 0x19080808, 0x2b080819, 0x19080808,
+    0x2b081908, 0x19080808, 0x2b190808, 0x19080808, 0x2b191919, 0x19080808, 0x2b192b08, 0x19080808,
+    0x2b2b0819, 0x19080808, 0x2b2b1908, 0x19080808, 0x08080808, 0x19080819, 0x0808082b, 0x19080819,
+    0x08081919, 0x19080819, 0x08082b08, 0x19080819, 0x08190819, 0x19080819, 0x08191908, 0x19080819,
+    0x0819192b, 0x19080819, 0x08192b19, 0x19080819, 0x082b0808, 0x19080819, 0x082b082b, 0x19080819,
+    0x082b1919, 0x19080819, 0x19080819, 0x19080819, 0x19081908, 0x19080819, 0x1908192b, 0x19080819,
+    0x19082b19, 0x19080819, 0x19190808, 0x19080819, 0x1919082b, 0x19080819, 0x19191919, 0x19080819,
+    0x19192b08, 0x19080819, 0x192b0819, 0x19080819, 0x192b1908, 0x19080819, 0x2b080808, 0x19080819,
+    0x2b08082b, 0x19080819, 0x2b081919, 0x19080819, 0x2b082b08, 0x19080819, 0x2b190819, 0x19080819,
+    0x2b191908, 0x19080819, 0x2b2b0808, 0x19080819, 0x08080819, 0x1908082b, 0x08081908, 0x1908082b,
+    0x08190808, 0x1908082b, 0x0819082b, 0x1908082b, 0x08191919, 0x1908082b, 0x08192b08, 0x1908082b,
+    0x082b1908, 0x1908082b, 0x19080808, 0x1908082b, 0x19081919, 0x1908082b, 0x19082b08, 0x1908082b,
+    0x19190819, 0x1908082b, 0x19191908, 0x1908082b, 0x192b0808, 0x1908082b, 0x2b080819, 0x1908082b,
+    0x2b081908, 0x1908082b, 0x08080808, 0x19081908, 0x0808082b, 0x19081908, 0x08081919, 0x19081908,
+    0x08082b08, 0x19081908, 0x08082b2b, 0x19081908, 0x08190819, 0x19081908, 0x08191908, 0x19081908,
+    0x0819192b, 0x19081908, 0x08192b19, 0x19081908, 0x082b0808, 0x19081908, 0x082b082b, 0x19081908,
+    0x082b1919, 0x19081908, 0x082b2b08, 0x19081908, 0x19080819, 0x19081908, 0x19081908, 0x19081908,
+    0x1908192b, 0x19081908, 0x19082b19, 0x19081908, 0x19190808, 0x19081908, 0x1919082b, 0x19081908,
+    0x19191919, 0x19081908, 0x19192b08, 0x19081908, 0x192b0819, 0x19081908, 0x192b1908, 0x19081908,
+    0x2b080808, 0x19081908, 0x2b08082b, 0x19081908, 0x2b081919, 0x19081908, 0x2b082b08, 0x19081908,
+    0x2b190819, 0x19081908, 0x2b191908, 0x19081908, 0x2b2b0808, 0x19081908, 0x08080819, 0x19081919,
+    0x08081908, 0x19081919, 0x0808192b, 0x19081919, 0x08082b19, 0x19081919, 0x08190808, 0x19081919,
+    0x0819082b, 0x19081919, 0x08191919, 0x19081919, 0x08192b08, 0x19081919, 0x082b0819, 0x19081919,
+    0x082b1908, 0x19081919, 0x19080808, 0x19081919, 0x1908082b, 0x19081919, 0x19081919, 0x19081919,
+    0x19082b08, 0x19081919, 0x19190819, 0x19081919, 0x19191908, 0x19081919, 0x192b0808, 0x19081919,
+    0x192b2b2b, 0x19081919, 0x2b080819, 0x19081919, 0x2b081908, 0x19081919, 0x2b190808, 0x19081919,
+    0x08080808, 0x1908192b, 0x0808082b, 0x1908192b, 0x08081919, 0x1908192b, 0x08082b08, 0x1908192b,
+    0x08190819, 0x1908192b, 0x08191908, 0x1908192b, 0x082b0808, 0x1908192b, 0x19080819, 0x1908192b,
+    0x19081908, 0x1908192b, 0x19190808, 0x1908192b, 0x2b080808, 0x1908192b, 0x2b2b1919, 0x1908192b,
+    0x08080819, 0x19082b08, 0x08081908, 0x19082b08, 0x08082b19, 0x19082b08, 0x08190808, 0x19082b08,
+    0x0819082b, 0x19082b08, 0x08191919, 0x19082b08, 0x08192b08, 0x19082b08, 0x082b0819, 0x19082b08,
+    0x082b1908, 0x19082b08, 0x19080808, 0x19082b08, 0x1908082b, 0x19082b08, 0x19081919, 0x19082b08,
+    0x19082b08, 0x19082b08, 0x19190819, 0x19082b08, 0x19191908, 0x19082b08, 0x192b0808, 0x19082b08,
+    0x2b081908, 0x19082b08, 0x2b190808, 0x19082b08, 0x08080808, 0x19082b19, 0x0808082b, 0x19082b19,
+    0x08081919, 0x19082b19, 0x08082b08, 0x19082b19, 0x08190819, 0x19082b19, 0x08191908, 0x19082b19,
+    0x082b0808, 0x19082b19, 0x19080819, 0x19082b19, 0x19081908, 0x19082b19, 0x19190808, 0x19082b19,
+    0x2b080808, 0x19082b19, 0x2b19192b, 0x19082b19, 0x08080819, 0x19082b2b, 0x08081908, 0x19082b2b,
+    0x08190808, 0x19082b2b, 0x19080808, 0x19082b2b, 0x08080808, 0x19190808, 0x0808082b, 0x19190808,
+    0x08081919, 0x19190808, 0x08082b08, 0x19190808, 0x08190819, 0x19190808, 0x08191908, 0x19190808,
+    0x0819192b, 0x19190808, 0x08192b19, 0x19190808, 0x082b0808, 0x19190808, 0x082b082b, 0x19190808,
+    0x082b1919, 0x19190808, 0x082b2b08, 0x19190808, 0x19080819, 0x19190808, 0x19081908, 0x19190808,
+    0x1908192b, 0x19190808, 0x19082b19, 0x19190808, 0x19190808, 0x19190808, 0x1919082b, 0x19190808,
+    0x19191919, 0x19190808, 0x19192b08, 0x19190808, 0x192b0819, 0x19190808, 0x192b1908, 0x19190808,
+    0x2b080808, 0x19190808, 0x2b08082b, 0x19190808, 0x2b081919, 0x19190808, 0x2b082b08, 0x19190808,
+    0x2b190819, 0x19190808, 0x2b191908, 0x19190808, 0x08080819, 0x19190819, 0x08081908, 0x19190819,
+    0x0808192b, 0x19190819, 0x08082b19, 0x19190819, 0x08190808, 0x19190819, 0x0819082b, 0x19190819,
+    0x08191919, 0x19190819, 0x08192b08, 0x19190819, 0x082b0819, 0x19190819, 0x082b1908, 0x19190819,
+    0x19080808, 0x19190819, 0x1908082b, 0x19190819, 0x19081919, 0x19190819, 0x19082b08, 0x19190819,
+    0x19190819, 0x19190819, 0x19191908, 0x19190819, 0x192b0808, 0x19190819, 0x2b080819, 0x19190819,
+    0x2b081908, 0x19190819, 0x2b190808, 0x19190819, 0x08080808, 0x1919082b, 0x08081919, 0x1919082b,
+    0x08082b08, 0x1919082b, 0x08190819, 0x1919082b, 0x08191908, 0x1919082b, 0x082b0808, 0x1919082b,
+    0x19080819, 0x1919082b, 0x19081908, 0x1919082b, 0x19190808, 0x1919082b, 0x192b2b19, 0x1919082b,
+    0x2b080808, 0x1919082b, 0x08080819, 0x19191908, 0x08081908, 0x19191908, 0x0808192b, 0x19191908,
+    0x08082b19, 0x19191908, 0x08190808, 0x19191908, 0x0819082b, 0x19191908, 0x08191919, 0x19191908,
+    0x08192b08, 0x19191908, 0x082b0819, 0x19191908, 0x082b1908, 0x19191908, 0x19080808, 0x19191908,
+    0x1908082b, 0x19191908, 0x19081919, 0x19191908, 0x19082b08, 0x19191908, 0x19190819, 0x19191908,
+    0x19191908, 0x19191908, 0x192b0808, 0x19191908, 0x2b080819, 0x19191908, 0x2b081908, 0x19191908,
+    0x2b190808, 0x19191908, 0x08080808, 0x19191919, 0x0808082b, 0x19191919, 0x08081919, 0x19191919,
+    0x08082b08, 0x19191919, 0x08190819, 0x19191919, 0x08191908, 0x19191919, 0x082b0808, 0x19191919,
+    0x19080819, 0x19191919, 0x19081908, 0x19191919, 0x19190808, 0x19191919, 0x2b080808, 0x19191919,
+    0x08080819, 0x1919192b, 0x08081908, 0x1919192b, 0x08190808, 0x1919192b, 0x082b192b, 0x1919192b,
+    0x19080808, 0x1919192b, 0x08080808, 0x19192b08, 0x0808082b, 0x19192b08, 0x08081919, 0x19192b08,
+    0x08082b08, 0x19192b08, 0x08190819, 0x19192b08, 0x08191908, 0x19192b08, 0x082b0808, 0x19192b08,
+    0x19080819, 0x19192b08, 0x19081908, 0x19192b08, 0x19190808, 0x19192b08, 0x19192b2b, 0x19192b08,
+    0x2b080808, 0x19192b08, 0x08080819, 0x19192b19, 0x08081908, 0x19192b19, 0x08190808, 0x19192b19,
+    0x19080808, 0x19192b19, 0x08080808, 0x19192b2b, 0x08192b19, 0x19192b2b, 0x2b081919, 0x19192b2b,
+    0x2b2b2b08, 0x19192b2b, 0x08080819, 0x192b0808, 0x08081908, 0x192b0808, 0x0808192b, 0x192b0808,
+    0x08190808, 0x192b0808, 0x0819082b, 0x192b0808, 0x08191919, 0x192b0808, 0x08192b08, 0x192b0808,
+    0x082b0819, 0x192b0808, 0x082b1908, 0x192b0808, 0x19080808, 0x192b0808, 0x19081919, 0x192b0808,
+    0x19082b08, 0x192b0808, 0x19190819, 0x192b0808, 0x19191908, 0x192b0808, 0x192b0808, 0x192b0808,
+    0x2b081908, 0x192b0808, 0x2b190808, 0x192b0808, 0x08080808, 0x192b0819, 0x0808082b, 0x192b0819,
+    0x08081919, 0x192b0819, 0x08082b08, 0x192b0819, 0x08190819, 0x192b0819, 0x08191908, 0x192b0819,
+    0x082b0808, 0x192b0819, 0x19080819, 0x192b0819, 0x19081908, 0x192b0819, 0x19190808, 0x192b0819,
+    0x2b080808, 0x192b0819, 0x2b192b19, 0x192b0819, 0x08081908, 0x192b082b, 0x08190808, 0x192b082b,
+    0x19080808, 0x192b082b, 0x1919192b, 0x192b082b, 0x2b2b0819, 0x192b082b, 0x08080808, 0x192b1908,
+    0x08081919, 0x192b1908, 0x08082b08, 0x192b1908, 0x08190819, 0x192b1908, 0x08191908, 0x192b1908,
+    0x082b0808, 0x192b1908, 0x19080819, 0x192b1908, 0x19081908, 0x192b1908, 0x19190808, 0x192b1908,
+    0x2b080808, 0x192b1908, 0x08080819, 0x192b1919, 0x08081908, 0x192b1919, 0x08190808, 0x192b1919,
+    0x19080808, 0x192b1919, 0x19082b2b, 0x192b1919, 0x192b2b08, 0x192b1919, 0x2b19082b, 0x192b1919,
+    0x08080808, 0x192b192b, 0x2b191908, 0x192b192b, 0x08080819, 0x192b2b08, 0x08081908, 0x192b2b08,
+    0x08190808, 0x192b2b08, 0x192b1919, 0x192b2b08, 0x2b192b08, 0x192b2b08, 0x08080808, 0x192b2b19,
+    0x082b2b2b, 0x192b2b19, 0x1908082b, 0x192b2b2b, 0x2b2b0819, 0x192b2b2b, 0x08080808, 0x2b080808,
+    0x0808082b, 0x2b080808, 0x08081919, 0x2b080808, 0x08082b08, 0x2b080808, 0x08190819, 0x2b080808,
+    0x08191908, 0x2b080808, 0x08192b19, 0x2b080808, 0x082b0808, 0x2b080808, 0x082b1919, 0x2b080808,
+    0x19080819, 0x2b080808, 0x19081908, 0x2b080808, 0x19190808, 0x2b080808, 0x1919082b, 0x2b080808,
+    0x19191919, 0x2b080808, 0x19192b08, 0x2b080808, 0x192b0819, 0x2b080808, 0x2b080808, 0x2b080808,
+    0x2b081919, 0x2b080808, 0x2b190819, 0x2b080808, 0x2b191908, 0x2b080808, 0x08080819, 0x2b080819,
+    0x08081908, 0x2b080819, 0x08082b19, 0x2b080819, 0x08190808, 0x2b080819, 0x0819082b, 0x2b080819,
+    0x08191919, 0x2b080819, 0x08192b08, 0x2b080819, 0x082b0819, 0x2b080819, 0x082b1908, 0x2b080819,
+    0x19080808, 0x2b080819, 0x1908082b, 0x2b080819, 0x19081919, 0x2b080819, 0x19082b08, 0x2b080819,
+    0x19190819, 0x2b080819, 0x19191908, 0x2b080819, 0x2b080819, 0x2b080819, 0x2b081908, 0x2b080819,
+    0x2b190808, 0x2b080819, 0x2b2b2b19, 0x2b080819, 0x08080808, 0x2b08082b, 0x08081919, 0x2b08082b,
+    0x08082b2b, 0x2b08082b, 0x08190819, 0x2b08082b, 0x08191908, 0x2b08082b, 0x19080819, 0x2b08082b,
+    0x19081908, 0x2b08082b, 0x19190808, 0x2b08082b, 0x08080819, 0x2b081908, 0x08081908, 0x2b081908,
+    0x0808192b, 0x2b081908, 0x08082b19, 0x2b081908, 0x08190808, 0x2b081908, 0x0819082b, 0x2b081908,
+    0x08191919, 0x2b081908, 0x08192b08, 0x2b081908, 0x082b0819, 0x2b081908, 0x19080808, 0x2b081908,
+    0x1908082b, 0x2b081908, 0x19081919, 0x2b081908, 0x19082b08, 0x2b081908, 0x19190819, 0x2b081908,
+    0x19191908, 0x2b081908, 0x192b0808, 0x2b081908, 0x2b080819, 0x2b081908, 0x2b081908, 0x2b081908,
+    0x2b190808, 0x2b081908, 0x08080808, 0x2b081919, 0x0808082b, 0x2b081919, 0x08081919, 0x2b081919,
+    0x08082b08, 0x2b081919, 0x08190819, 0x2b081919, 0x08191908, 0x2b081919, 0x082b0808, 0x2b081919,
+    0x19080819, 0x2b081919, 0x19081908, 0x2b081919, 0x19190808, 0x2b081919, 0x2b080808, 0x2b081919,
+    0x2b082b2b, 0x2b081919, 0x08080819, 0x2b08192b, 0x08081908, 0x2b08192b, 0x08190808, 0x2b08192b,
+    0x082b2b19, 0x2b08192b, 0x19080808, 0x2b08192b, 0x08080808, 0x2b082b08, 0x08081919, 0x2b082b08,
+    0x08190819, 0x2b082b08, 0x08191908, 0x2b082b08, 0x19080819, 0x2b082b08, 0x19081908, 0x2b082b08,
+    0x19190808, 0x2b082b08, 0x2b2b082b, 0x2b082b08, 0x08080819, 0x2b082b19, 0x08081908, 0x2b082b19,
+    0x19080808, 0x2b082b19, 0x192b1919, 0x2b082b19, 0x082b082b, 0x2b082b2b, 0x19192b08, 0x2b082b2b,
+    0x19192b2b, 0x2b082b2b, 0x2b08082b, 0x2b082b2b, 0x2b2b082b, 0x2b082b2b, 0x08080819, 0x2b190808,
+    0x08081908, 0x2b190808, 0x08082b19, 0x2b190808, 0x08190808, 0x2b190808, 0x0819082b, 0x2b190808,
+    0x08191919, 0x2b190808, 0x08192b08, 0x2b190808, 0x082b1908, 0x2b190808, 0x19080808, 0x2b190808,
+    0x1908082b, 0x2b190808, 0x19081919, 0x2b190808, 0x19082b08, 0x2b190808, 0x19190819, 0x2b190808,
+    0x19191908, 0x2b190808, 0x192b0808, 0x2b190808, 0x2b080819, 0x2b190808, 0x2b081908, 0x2b190808,
+    0x2b190808, 0x2b190808, 0x08080808, 0x2b190819, 0x08081919, 0x2b190819, 0x08190819, 0x2b190819,
+    0x08191908, 0x2b190819, 0x19080819, 0x2b190819, 0x19081908, 0x2b190819, 0x19190808, 0x2b190819,
+    0x19192b2b, 0x2b190819, 0x08080819, 0x2b19082b, 0x08081908, 0x2b19082b, 0x08190808, 0x2b19082b,
+    0x19080808, 0x2b19082b, 0x2b2b192b, 0x2b19082b, 0x08080808, 0x2b191908, 0x0808082b, 0x2b191908,
+    0x08081919, 0x2b191908, 0x08082b08, 0x2b191908, 0x08190819, 0x2b191908, 0x08191908, 0x2b191908,
+    0x082b0808, 0x2b191908, 0x19080819, 0x2b191908, 0x19081908, 0x2b191908, 0x19190808, 0x2b191908,
+    0x2b080808, 0x2b191908, 0x2b19192b, 0x2b191908, 0x08080819, 0x2b191919, 0x08081908, 0x2b191919,
+    0x08190808, 0x2b191919, 0x19080808, 0x2b191919, 0x2b192b08, 0x2b191919, 0x2b2b0819, 0x2b191919,
+    0x08080808, 0x2b19192b, 0x1908192b, 0x2b19192b, 0x192b1908, 0x2b19192b, 0x08080819, 0x2b192b08,
+    0x08081908, 0x2b192b08, 0x08190808, 0x2b192b08, 0x082b192b, 0x2b192b08, 0x19080808, 0x2b192b08,
+    0x2b2b2b19, 0x2b192b08, 0x08080808, 0x2b192b19, 0x19082b19, 0x2b192b19, 0x1919082b, 0x2b192b19,
+    0x2b190808, 0x2b192b2b, 0x08080808, 0x2b2b0808, 0x08081919, 0x2b2b0808, 0x08082b2b, 0x2b2b0808,
+    0x08191908, 0x2b2b0808, 0x082b082b, 0x2b2b0808, 0x082b2b2b, 0x2b2b0808, 0x19080819, 0x2b2b0808,
+    0x19081908, 0x2b2b0808, 0x19190808, 0x2b2b0808, 0x2b2b082b, 0x2b2b0808, 0x2b2b2b2b, 0x2b2b0808,
+    0x19080808, 0x2b2b0819, 0x192b1919, 0x2b2b0819, 0x0808082b, 0x2b2b082b, 0x08082b2b, 0x2b2b082b,
+    0x082b082b, 0x2b2b082b, 0x082b2b08, 0x2b2b082b, 0x082b2b2b, 0x2b2b082b, 0x2b08082b, 0x2b2b082b,
+    0x2b082b08, 0x2b2b082b, 0x2b082b2b, 0x2b2b082b, 0x2b2b2b08, 0x2b2b082b, 0x08080819, 0x2b2b1908,
+    0x08081908, 0x2b2b1908, 0x08190808, 0x2b2b1908, 0x19080808, 0x2b2b1908, 0x2b082b19, 0x2b2b1908,
+    0x2b2b1908, 0x2b2b1908, 0x08080808, 0x2b2b1919, 0x08192b19, 0x2b2b1919, 0x19190819, 0x2b2b192b,
+    0x08082b2b, 0x2b2b2b08, 0x082b2b08, 0x2b2b2b08, 0x2b2b082b, 0x2b2b2b08, 0x19191908, 0x2b2b2b19,
+    0x2b08192b, 0x2b2b2b19, 0x08082b08, 0x2b2b2b2b, 0x08082b2b, 0x2b2b2b2b, 0x082b0808, 0x2b2b2b2b,
+    0x082b082b, 0x2b2b2b2b, 0x082b2b08, 0x2b2b2b2b, 0x2b082b08, 0x2b2b2b2b, 0x2b2b2b2b, 0x2b2b2b2b
+);
+
+struct iq2_s {
+    d: f16,
+    qs: array<f16, 32>,
+    qh: array<f16, 4>,
+    scales: array<f16, 4>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block = src0[src0_idx_base + offset];
+    let d = f32(block.d);
+    var src1_i = src1_idx_base + offset * 256;
+    var qs_vals : array<u32, 16>;
+    for (var i: u32 = 0; i < 16; i++) {
+        qs_vals[i] = bitcast<u32>(vec2(block.qs[i * 2], block.qs[i * 2 + 1]));
+    }
+    var qh_vals = array<u32, 2>(
+        bitcast<u32>(vec2(block.qh[0], block.qh[1])),
+        bitcast<u32>(vec2(block.qh[2], block.qh[3]))
+    );
+    var scale_vals = array<u32, 2>(
+        bitcast<u32>(vec2(block.scales[0], block.scales[1])),
+        bitcast<u32>(vec2(block.scales[2], block.scales[3]))
+    );
+    var sum = 0.0;
+    for (var ib: u32 = 0; ib < 8; ib ++) {
+        let s = get_byte(scale_vals[ib / 4], ib % 4);
+        let db = array<f32, 2>(
+            d * (0.5 + f32(s & 0xF)) * 0.25,
+            d * (0.5 + f32(s >> 4)) * 0.25
+        );
+        let qs_w = qs_vals[ib];
+        for (var l: u32 = 0; l < 4; l++) {
+            let qh_b = (get_byte(qh_vals[ib / 4], ib % 4) << (8 - 2 * l)) & 0x300;
+            let ig = (get_byte(qs_w, l) | qh_b) * 8;
+            let signs = get_byte(qs_vals[ib + 8], l);
+            let dl = db[l/2];
+            for (var j: u32 = 0; j < 8; j++) {
+                let g = get_byte(iq2s_grid[(ig + j) / 4], (ig + j) % 4);
+                let m = select(1.0, -1.0, (get_byte(kmask_iq2xs[j / 4], j % 4) & signs) != 0);
+                sum += dl * f32(g) * m * src1[src1_i];
+                src1_i++;
+            }
+        }
+    }
+    return sum;
+}
+
+
+#enddecl(IQ2_S)
+
+#decl(IQ3_XSS)
+
+const iq3xxs_grid = array<u32, 256>(
+    0x04040404, 0x04040414, 0x04040424, 0x04040c0c, 0x04040c1c, 0x04040c3e, 0x04041404, 0x04041414,
+    0x04041c0c, 0x04042414, 0x04043e1c, 0x04043e2c, 0x040c040c, 0x040c041c, 0x040c0c04, 0x040c0c14,
+    0x040c140c, 0x040c142c, 0x040c1c04, 0x040c1c14, 0x040c240c, 0x040c2c24, 0x040c3e04, 0x04140404,
+    0x04140414, 0x04140424, 0x04140c0c, 0x04141404, 0x04141414, 0x04141c0c, 0x04141c1c, 0x04141c3e,
+    0x04142c0c, 0x04142c3e, 0x04143e2c, 0x041c040c, 0x041c043e, 0x041c0c04, 0x041c0c14, 0x041c142c,
+    0x041c3e04, 0x04240c1c, 0x04241c3e, 0x04242424, 0x04242c3e, 0x04243e1c, 0x04243e2c, 0x042c040c,
+    0x042c043e, 0x042c1c14, 0x042c2c14, 0x04341c2c, 0x04343424, 0x043e0c04, 0x043e0c24, 0x043e0c34,
+    0x043e241c, 0x043e340c, 0x0c04040c, 0x0c04041c, 0x0c040c04, 0x0c040c14, 0x0c04140c, 0x0c04141c,
+    0x0c041c04, 0x0c041c14, 0x0c041c24, 0x0c04243e, 0x0c042c04, 0x0c0c0404, 0x0c0c0414, 0x0c0c0c0c,
+    0x0c0c1404, 0x0c0c1414, 0x0c14040c, 0x0c14041c, 0x0c140c04, 0x0c140c14, 0x0c14140c, 0x0c141c04,
+    0x0c143e14, 0x0c1c0404, 0x0c1c0414, 0x0c1c1404, 0x0c1c1c0c, 0x0c1c2434, 0x0c1c3434, 0x0c24040c,
+    0x0c24042c, 0x0c242c04, 0x0c2c1404, 0x0c2c1424, 0x0c2c2434, 0x0c2c3e0c, 0x0c34042c, 0x0c3e1414,
+    0x0c3e2404, 0x14040404, 0x14040414, 0x14040c0c, 0x14040c1c, 0x14041404, 0x14041414, 0x14041434,
+    0x14041c0c, 0x14042414, 0x140c040c, 0x140c041c, 0x140c042c, 0x140c0c04, 0x140c0c14, 0x140c140c,
+    0x140c1c04, 0x140c341c, 0x140c343e, 0x140c3e04, 0x14140404, 0x14140414, 0x14140c0c, 0x14140c3e,
+    0x14141404, 0x14141414, 0x14141c3e, 0x14142404, 0x14142c2c, 0x141c040c, 0x141c0c04, 0x141c0c24,
+    0x141c3e04, 0x141c3e24, 0x14241c2c, 0x14242c1c, 0x142c041c, 0x142c143e, 0x142c240c, 0x142c3e24,
+    0x143e040c, 0x143e041c, 0x143e0c34, 0x143e242c, 0x1c04040c, 0x1c040c04, 0x1c040c14, 0x1c04140c,
+    0x1c04141c, 0x1c042c04, 0x1c04342c, 0x1c043e14, 0x1c0c0404, 0x1c0c0414, 0x1c0c1404, 0x1c0c1c0c,
+    0x1c0c2424, 0x1c0c2434, 0x1c14040c, 0x1c14041c, 0x1c140c04, 0x1c14142c, 0x1c142c14, 0x1c143e14,
+    0x1c1c0c0c, 0x1c1c1c1c, 0x1c241c04, 0x1c24243e, 0x1c243e14, 0x1c2c0404, 0x1c2c0434, 0x1c2c1414,
+    0x1c2c2c2c, 0x1c340c24, 0x1c341c34, 0x1c34341c, 0x1c3e1c1c, 0x1c3e3404, 0x24040424, 0x24040c3e,
+    0x24041c2c, 0x24041c3e, 0x24042c1c, 0x24042c3e, 0x240c3e24, 0x24141404, 0x24141c3e, 0x24142404,
+    0x24143404, 0x24143434, 0x241c043e, 0x241c242c, 0x24240424, 0x24242c0c, 0x24243424, 0x242c142c,
+    0x242c241c, 0x242c3e04, 0x243e042c, 0x243e0c04, 0x243e0c14, 0x243e1c04, 0x2c040c14, 0x2c04240c,
+    0x2c043e04, 0x2c0c0404, 0x2c0c0434, 0x2c0c1434, 0x2c0c2c2c, 0x2c140c24, 0x2c141c14, 0x2c143e14,
+    0x2c1c0414, 0x2c1c2c1c, 0x2c240c04, 0x2c24141c, 0x2c24143e, 0x2c243e14, 0x2c2c0414, 0x2c2c1c0c,
+    0x2c342c04, 0x2c3e1424, 0x2c3e2414, 0x34041424, 0x34042424, 0x34042434, 0x34043424, 0x340c140c,
+    0x340c340c, 0x34140c3e, 0x34143424, 0x341c1c04, 0x341c1c34, 0x34242424, 0x342c042c, 0x342c2c14,
+    0x34341c1c, 0x343e041c, 0x343e140c, 0x3e04041c, 0x3e04042c, 0x3e04043e, 0x3e040c04, 0x3e041c14,
+    0x3e042c14, 0x3e0c1434, 0x3e0c2404, 0x3e140c14, 0x3e14242c, 0x3e142c14, 0x3e1c0404, 0x3e1c0c2c,
+    0x3e1c1c1c, 0x3e1c3404, 0x3e24140c, 0x3e24240c, 0x3e2c0404, 0x3e2c0414, 0x3e2c1424, 0x3e341c04
+);
+
+struct iq3_xxs {
+    d: f16,
+    qs: array<f16, 48>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block = src0[src0_idx_base + offset];
+    let d = f32(block.d);
+    var src1_i = src1_idx_base + offset * 256;
+    var sum = 0.0;
+    for (var ib: u32 = 0; ib < 16; ib += 2) {
+        let sc_sign = bitcast<u32>(vec2(block.qs[ib + 32], block.qs[ib + 33]));
+        let db = d * (0.5 + f32(sc_sign >> 28)) * 0.5;
+        for (var l: u32 = 0; l < 4; l++) {
+            let is = (sc_sign >> (7 * l)) & 127;
+            let signs = get_byte(ksigns_iq2xs[is / 4], is % 4);
+            let ig_val = bitcast<u32>(vec2(block.qs[ib * 2 + l], 0.0));
+            let ig1 = get_byte(ig_val, 0);
+            let ig2 = get_byte(ig_val, 1);
+            for (var j: u32 = 0; j < 4; j++) {
+                let g1 = get_byte(iq3xxs_grid[ig1], j);
+                let g2 = get_byte(iq3xxs_grid[ig2], j);
+                let m1 = select(1.0, -1.0, (get_byte(kmask_iq2xs[0], j) & signs) != 0);
+                let m2 = select(1.0, -1.0, (get_byte(kmask_iq2xs[1], j) & signs) != 0);
+                sum += db * f32(g1) * m1 * src1[src1_i];
+                sum += db * f32(g2) * m2 * src1[src1_i + 4];
+                src1_i++;
+            }
+            src1_i += 4;
+        }
+    }
+    return sum;
+}
+
+#enddecl(IQ3_XSS)
+
+#decl(IQ3_S)
+
+const iq3s_grid = array<u32, 512>(
+    0x01010101, 0x01010103, 0x01010105, 0x0101010b, 0x0101010f, 0x01010301, 0x01010303, 0x01010305,
+    0x01010309, 0x0101030d, 0x01010501, 0x01010503, 0x0101050b, 0x01010707, 0x01010901, 0x01010905,
+    0x0101090b, 0x0101090f, 0x01010b03, 0x01010b07, 0x01010d01, 0x01010d05, 0x01010f03, 0x01010f09,
+    0x01010f0f, 0x01030101, 0x01030103, 0x01030105, 0x01030109, 0x01030301, 0x01030303, 0x0103030b,
+    0x01030501, 0x01030507, 0x0103050f, 0x01030703, 0x0103070b, 0x01030909, 0x01030d03, 0x01030d0b,
+    0x01030f05, 0x01050101, 0x01050103, 0x0105010b, 0x0105010f, 0x01050301, 0x01050307, 0x0105030d,
+    0x01050503, 0x0105050b, 0x01050701, 0x01050709, 0x01050905, 0x0105090b, 0x0105090f, 0x01050b03,
+    0x01050b07, 0x01050f01, 0x01050f07, 0x01070107, 0x01070303, 0x0107030b, 0x01070501, 0x01070505,
+    0x01070703, 0x01070707, 0x0107070d, 0x01070909, 0x01070b01, 0x01070b05, 0x01070d0f, 0x01070f03,
+    0x01070f0b, 0x01090101, 0x01090307, 0x0109030f, 0x01090503, 0x01090509, 0x01090705, 0x01090901,
+    0x01090907, 0x01090b03, 0x01090f01, 0x010b0105, 0x010b0109, 0x010b0501, 0x010b0505, 0x010b050d,
+    0x010b0707, 0x010b0903, 0x010b090b, 0x010b090f, 0x010b0d0d, 0x010b0f07, 0x010d010d, 0x010d0303,
+    0x010d0307, 0x010d0703, 0x010d0b05, 0x010d0f03, 0x010f0101, 0x010f0105, 0x010f0109, 0x010f0501,
+    0x010f0505, 0x010f050d, 0x010f0707, 0x010f0b01, 0x010f0b09, 0x03010101, 0x03010103, 0x03010105,
+    0x03010109, 0x03010301, 0x03010303, 0x03010307, 0x0301030b, 0x0301030f, 0x03010501, 0x03010505,
+    0x03010703, 0x03010709, 0x0301070d, 0x03010b09, 0x03010b0d, 0x03010d03, 0x03010f05, 0x03030101,
+    0x03030103, 0x03030107, 0x0303010d, 0x03030301, 0x03030309, 0x03030503, 0x03030701, 0x03030707,
+    0x03030903, 0x03030b01, 0x03030b05, 0x03030f01, 0x03030f0d, 0x03050101, 0x03050305, 0x0305030b,
+    0x0305030f, 0x03050501, 0x03050509, 0x03050705, 0x03050901, 0x03050907, 0x03050b0b, 0x03050d01,
+    0x03050f05, 0x03070103, 0x03070109, 0x0307010f, 0x03070301, 0x03070307, 0x03070503, 0x0307050f,
+    0x03070701, 0x03070709, 0x03070903, 0x03070d05, 0x03070f01, 0x03090107, 0x0309010b, 0x03090305,
+    0x03090309, 0x03090703, 0x03090707, 0x03090905, 0x0309090d, 0x03090b01, 0x03090b09, 0x030b0103,
+    0x030b0301, 0x030b0307, 0x030b0503, 0x030b0701, 0x030b0705, 0x030b0b03, 0x030d0501, 0x030d0509,
+    0x030d050f, 0x030d0909, 0x030d090d, 0x030f0103, 0x030f0107, 0x030f0301, 0x030f0305, 0x030f0503,
+    0x030f070b, 0x030f0903, 0x030f0d05, 0x030f0f01, 0x05010101, 0x05010103, 0x05010107, 0x0501010b,
+    0x0501010f, 0x05010301, 0x05010305, 0x05010309, 0x0501030d, 0x05010503, 0x05010507, 0x0501050f,
+    0x05010701, 0x05010705, 0x05010903, 0x05010907, 0x0501090b, 0x05010b01, 0x05010b05, 0x05010d0f,
+    0x05010f01, 0x05010f07, 0x05010f0b, 0x05030101, 0x05030105, 0x05030301, 0x05030307, 0x0503030f,
+    0x05030505, 0x0503050b, 0x05030703, 0x05030709, 0x05030905, 0x05030b03, 0x05050103, 0x05050109,
+    0x0505010f, 0x05050503, 0x05050507, 0x05050701, 0x0505070f, 0x05050903, 0x05050b07, 0x05050b0f,
+    0x05050f03, 0x05050f09, 0x05070101, 0x05070105, 0x0507010b, 0x05070303, 0x05070505, 0x05070509,
+    0x05070703, 0x05070707, 0x05070905, 0x05070b01, 0x05070d0d, 0x05090103, 0x0509010f, 0x05090501,
+    0x05090507, 0x05090705, 0x0509070b, 0x05090903, 0x05090f05, 0x05090f0b, 0x050b0109, 0x050b0303,
+    0x050b0505, 0x050b070f, 0x050b0901, 0x050b0b07, 0x050b0f01, 0x050d0101, 0x050d0105, 0x050d010f,
+    0x050d0503, 0x050d0b0b, 0x050d0d03, 0x050f010b, 0x050f0303, 0x050f050d, 0x050f0701, 0x050f0907,
+    0x050f0b01, 0x07010105, 0x07010303, 0x07010307, 0x0701030b, 0x0701030f, 0x07010505, 0x07010703,
+    0x07010707, 0x0701070b, 0x07010905, 0x07010909, 0x0701090f, 0x07010b03, 0x07010d07, 0x07010f03,
+    0x07030103, 0x07030107, 0x0703010b, 0x07030309, 0x07030503, 0x07030507, 0x07030901, 0x07030d01,
+    0x07030f05, 0x07030f0d, 0x07050101, 0x07050305, 0x07050501, 0x07050705, 0x07050709, 0x07050b01,
+    0x07070103, 0x07070301, 0x07070309, 0x07070503, 0x07070507, 0x0707050f, 0x07070701, 0x07070903,
+    0x07070907, 0x0707090f, 0x07070b0b, 0x07070f07, 0x07090107, 0x07090303, 0x0709030d, 0x07090505,
+    0x07090703, 0x07090b05, 0x07090d01, 0x07090d09, 0x070b0103, 0x070b0301, 0x070b0305, 0x070b050b,
+    0x070b0705, 0x070b0909, 0x070b0b0d, 0x070b0f07, 0x070d030d, 0x070d0903, 0x070f0103, 0x070f0107,
+    0x070f0501, 0x070f0505, 0x070f070b, 0x09010101, 0x09010109, 0x09010305, 0x09010501, 0x09010509,
+    0x0901050f, 0x09010705, 0x09010903, 0x09010b01, 0x09010f01, 0x09030105, 0x0903010f, 0x09030303,
+    0x09030307, 0x09030505, 0x09030701, 0x0903070b, 0x09030907, 0x09030b03, 0x09030b0b, 0x09050103,
+    0x09050107, 0x09050301, 0x0905030b, 0x09050503, 0x09050707, 0x09050901, 0x09050b0f, 0x09050d05,
+    0x09050f01, 0x09070109, 0x09070303, 0x09070307, 0x09070501, 0x09070505, 0x09070703, 0x0907070b,
+    0x09090101, 0x09090105, 0x09090509, 0x0909070f, 0x09090901, 0x09090f03, 0x090b010b, 0x090b010f,
+    0x090b0503, 0x090b0d05, 0x090d0307, 0x090d0709, 0x090d0d01, 0x090f0301, 0x090f030b, 0x090f0701,
+    0x090f0907, 0x090f0b03, 0x0b010105, 0x0b010301, 0x0b010309, 0x0b010505, 0x0b010901, 0x0b010909,
+    0x0b01090f, 0x0b010b05, 0x0b010d0d, 0x0b010f09, 0x0b030103, 0x0b030107, 0x0b03010b, 0x0b030305,
+    0x0b030503, 0x0b030705, 0x0b030f05, 0x0b050101, 0x0b050303, 0x0b050507, 0x0b050701, 0x0b05070d,
+    0x0b050b07, 0x0b070105, 0x0b07010f, 0x0b070301, 0x0b07050f, 0x0b070909, 0x0b070b03, 0x0b070d0b,
+    0x0b070f07, 0x0b090103, 0x0b090109, 0x0b090501, 0x0b090705, 0x0b09090d, 0x0b0b0305, 0x0b0b050d,
+    0x0b0b0b03, 0x0b0b0b07, 0x0b0d0905, 0x0b0f0105, 0x0b0f0109, 0x0b0f0505, 0x0d010303, 0x0d010307,
+    0x0d01030b, 0x0d010703, 0x0d010707, 0x0d010d01, 0x0d030101, 0x0d030501, 0x0d03050f, 0x0d030d09,
+    0x0d050305, 0x0d050709, 0x0d050905, 0x0d050b0b, 0x0d050d05, 0x0d050f01, 0x0d070101, 0x0d070309,
+    0x0d070503, 0x0d070901, 0x0d09050b, 0x0d090907, 0x0d090d05, 0x0d0b0101, 0x0d0b0107, 0x0d0b0709,
+    0x0d0b0d01, 0x0d0d010b, 0x0d0d0901, 0x0d0f0303, 0x0d0f0307, 0x0f010101, 0x0f010109, 0x0f01010f,
+    0x0f010501, 0x0f010505, 0x0f01070d, 0x0f010901, 0x0f010b09, 0x0f010d05, 0x0f030105, 0x0f030303,
+    0x0f030509, 0x0f030907, 0x0f03090b, 0x0f050103, 0x0f050109, 0x0f050301, 0x0f05030d, 0x0f050503,
+    0x0f050701, 0x0f050b03, 0x0f070105, 0x0f070705, 0x0f07070b, 0x0f070b07, 0x0f090103, 0x0f09010b,
+    0x0f090307, 0x0f090501, 0x0f090b01, 0x0f0b0505, 0x0f0b0905, 0x0f0d0105, 0x0f0d0703, 0x0f0f0101
+);
+
+struct iq3_s {
+    d: f16,
+    qs: array<f16, 32>,
+    qh: array<f16, 4>,
+    signs: array<f16, 16>,
+    scales: array<f16, 2>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block = src0[src0_idx_base + offset];
+    let d = f32(block.d);
+    var src1_i = src1_idx_base + offset * 256;
+    var qh_vals = array<u32, 2>(
+        bitcast<u32>(vec2(block.qh[0], block.qh[1])),
+        bitcast<u32>(vec2(block.qh[2], block.qh[3]))
+    );
+    var sign_vals: array<u32, 8>;
+    for (var i: u32 = 0; i < 8; i++) {
+        sign_vals[i] = bitcast<u32>(vec2(block.signs[i * 2], block.signs[i * 2 + 1]));
+    }
+    var scale_vals = bitcast<u32>(vec2(block.scales[0], block.scales[1]));
+    var sum = 0.0;
+    for (var ib: u32 = 0; ib < 4; ib++) {
+        let s = get_byte(scale_vals, ib);
+        let db = array<f32, 2>(
+            d * (1.0 + 2.0 * f32(s & 0xF)),
+            d * (1.0 + 2.0 * f32(s >> 4))
+        );
+        for (var k: u32 = 0; k < 2; k++) {
+            let dl = db[k];
+            let qh_byte = get_byte(qh_vals[ib / 2], (ib % 2) * 2 + k);
+            let sign_w = sign_vals[ib * 2 + k];
+            for (var l: u32 = 0; l < 4; l++) {
+                let signs = get_byte(sign_w, l);
+                let ig_val = bitcast<u32>(vec2(block.qs[ib * 8 + k * 4 + l], 0.0));
+                let ig1 = get_byte(ig_val, 0) | ((qh_byte << ((8 - (2 * l)))) & 256);
+                let ig2 = get_byte(ig_val, 1) | ((qh_byte << ((7 - (2 * l)))) & 256);
+                for (var j: u32 = 0; j < 4; j++) {
+                    let g1 = get_byte(iq3s_grid[ig1], j);
+                    let g2 = get_byte(iq3s_grid[ig2], j);
+                    let m1 = select(1.0, -1.0, (get_byte(kmask_iq2xs[0], j) & signs) != 0);
+                    let m2 = select(1.0, -1.0, (get_byte(kmask_iq2xs[1], j) & signs) != 0);
+                    sum += dl * f32(g1) * m1 * src1[src1_i];
+                    sum += dl * f32(g2) * m2 * src1[src1_i + 4];
+                    src1_i++;
+                }
+                src1_i += 4;
+            }
+        }
+    }
+    return sum;
+}
+#enddecl(IQ3_S)
+
+#decl(IQ1_TABLE)
+
+const IQ1_DELTA: f32 = 0.125;
+
+const iq1_grid = array<u32, 1024>(
+    0xfffdffff, 0xfff7fff0, 0xffccfff5, 0xffdfffc0, 0xffd7ffdd, 0xff30ffd5, 0xff03ff0c, 0xff10ff01,
+    0xff7dff7f, 0xff75ff77, 0xff5fff40, 0xff57ff5d, 0xfcf3ff55, 0xfcccfcf0, 0xfcc1fcc3, 0xfcc5fcc4,
+    0xfc3cfcd0, 0xfc34fc31, 0xfc00fc0d, 0xfc1cfc05, 0xfc11fc13, 0xfc70fc17, 0xfc43fc4c, 0xfc50fc41,
+    0xfdfdfdff, 0xfdf5fdf7, 0xfddffdc0, 0xfdd7fddd, 0xfd30fdd5, 0xfd04fd0c, 0xfd14fd13, 0xfd7dfd7f,
+    0xfd75fd77, 0xfd40fd4c, 0xfd5ffd44, 0xfd57fd5d, 0xf3ccfd55, 0xf3c1f3c3, 0xf33cf3d0, 0xf300f334,
+    0xf313f305, 0xf34cf310, 0xf350f344, 0xf0f3f0fc, 0xf0f1f0f0, 0xf0c7f0c0, 0xf0d4f0c5, 0xf030f03f,
+    0xf00ff035, 0xf003f00c, 0xf001f000, 0xf01ff004, 0xf010f01d, 0xf015f017, 0xf04cf07c, 0xf047f040,
+    0xf05cf045, 0xf050f053, 0xf054f051, 0xf1c4f1c3, 0xf133f13c, 0xf10df10f, 0xf107f100, 0xf11cf11f,
+    0xf114f111, 0xf14cf170, 0xf144f143, 0xf7fdf7ff, 0xf7f5f7f7, 0xf7dff7c0, 0xf7d7f7dd, 0xf730f7d5,
+    0xf701f70c, 0xf77ff710, 0xf777f77d, 0xf740f775, 0xf75df75f, 0xf755f757, 0xf4ccf4f0, 0xf4c4f4c3,
+    0xf4d0f4d3, 0xf40ff43c, 0xf400f40c, 0xf413f41c, 0xf44cf414, 0xf441f443, 0xf450f444, 0xf5fdf5ff,
+    0xf5f5f5f7, 0xf5dff5c0, 0xf5d7f5dd, 0xf530f5d5, 0xf504f50c, 0xf510f51c, 0xf57df57f, 0xf577f570,
+    0xf540f575, 0xf55df55f, 0xf555f557, 0xcfcccfcf, 0xcfc4cfc3, 0xcfd0cfd3, 0xcf33cf3c, 0xcf00cf0f,
+    0xcf1ccf07, 0xcf10cf13, 0xcf4ccf14, 0xcf41cf43, 0xcf50cf5c, 0xccf3ccfc, 0xccf4ccf1, 0xcccdcccf,
+    0xccc7ccc0, 0xccd3ccdc, 0xcc30ccd4, 0xcc0fcc35, 0xcc0dcc0c, 0xcc00cc03, 0xcc04cc01, 0xcc10cc1f,
+    0xcc4dcc73, 0xcc5ccc40, 0xcdcccc53, 0xcdc1cdc3, 0xcd3fcdd0, 0xcd34cd31, 0xcd00cd0d, 0xcd05cd07,
+    0xcd11cd13, 0xcd4ccd70, 0xcd41cd43, 0xc3fccd50, 0xc3f4c3f1, 0xc3c0c3c3, 0xc3c4c3c7, 0xc3d1c3dc,
+    0xc330c33c, 0xc337c331, 0xc30cc335, 0xc300c303, 0xc304c301, 0xc310c31d, 0xc373c317, 0xc34fc374,
+    0xc340c343, 0xc344c347, 0xc35cc345, 0xc350c353, 0xc0fdc354, 0xc0f5c0f0, 0xc0c3c0cc, 0xc0c1c0c0,
+    0xc0dfc0c4, 0xc0d0c0dd, 0xc0d5c0d7, 0xc033c03c, 0xc031c030, 0xc00dc00c, 0xc000c003, 0xc004c001,
+    0xc01cc005, 0xc010c013, 0xc014c011, 0xc07dc07f, 0xc070c073, 0xc075c077, 0xc04cc04f, 0xc040c043,
+    0xc044c041, 0xc05fc045, 0xc050c05d, 0xc1f3c1fc, 0xc1f1c1f0, 0xc1c1c1c0, 0xc1c5c1c7, 0xc1d1c1dc,
+    0xc13dc13f, 0xc130c133, 0xc135c137, 0xc100c10c, 0xc107c101, 0xc11cc104, 0xc110c113, 0xc114c117,
+    0xc171c115, 0xc14dc175, 0xc153c140, 0xc7ccc154, 0xc7d0c7c1, 0xc733c73c, 0xc734c731, 0xc700c70f,
+    0xc705c707, 0xc71cc71f, 0xc711c713, 0xc770c714, 0xc743c74c, 0xc4cfc750, 0xc4c0c4cd, 0xc4dcc4c5,
+    0xc43dc4d0, 0xc430c433, 0xc40cc437, 0xc400c403, 0xc404c401, 0xc41fc405, 0xc415c410, 0xc44cc474,
+    0xc440c44d, 0xc45cc447, 0xc454c451, 0xc5c1c5f4, 0xc5d1c5d3, 0xc531c533, 0xc50fc534, 0xc500c50d,
+    0xc51cc507, 0xc514c511, 0xc54cc570, 0xc545c541, 0xdffddfff, 0xdff5dff7, 0xdfdfdfc0, 0xdfd0dfdd,
+    0xdfd5dfd7, 0xdf0cdf30, 0xdf1cdf04, 0xdf7fdf10, 0xdf77df7d, 0xdf40df75, 0xdf5ddf5f, 0xdf57df50,
+    0xdcf0df55, 0xdcc3dccc, 0xdcd0dcc4, 0xdc33dc3d, 0xdc00dc34, 0xdc05dc07, 0xdc13dc1c, 0xdc11dc10,
+    0xdc4fdc70, 0xdc44dc41, 0xddfcdc50, 0xddf5ddf7, 0xddc0ddcc, 0xdddddddf, 0xddd5ddd7, 0xdd0cdd30,
+    0xdd04dd01, 0xdd7cdd10, 0xdd75dd77, 0xdd40dd4c, 0xdd5ddd5f, 0xdd55dd57, 0xd3c3d3f0, 0xd3c4d3c1,
+    0xd333d3d0, 0xd331d330, 0xd30dd334, 0xd307d300, 0xd311d305, 0xd34cd370, 0xd344d343, 0xd350d35c,
+    0xd0c0d0f4, 0xd0d4d0dc, 0xd030d03f, 0xd00cd037, 0xd000d003, 0xd01dd004, 0xd017d010, 0xd04fd074,
+    0xd040d043, 0xd045d047, 0xd053d05c, 0xd054d051, 0xd1cfd1f0, 0xd1c4d1cd, 0xd13cd1d0, 0xd100d134,
+    0xd11cd11f, 0xd173d114, 0xd14fd171, 0xd7ffd145, 0xd7f7d7fd, 0xd7c0d7f5, 0xd7ddd7df, 0xd7d5d7d7,
+    0xd70cd730, 0xd710d703, 0xd77dd77f, 0xd775d777, 0xd75dd75f, 0xd755d757, 0xd4ccd4f4, 0xd4c4d4c3,
+    0xd431d4d0, 0xd40dd434, 0xd41cd400, 0xd411d413, 0xd470d414, 0xd441d44f, 0xd453d444, 0xd5ffd450,
+    0xd5f7d5fd, 0xd5dfd5f5, 0xd5d7d5dd, 0xd530d5d5, 0xd501d50c, 0xd510d504, 0xd57dd57f, 0xd575d577,
+    0xd55fd540, 0xd557d55d, 0x3ff0d555, 0x3fc13fcc, 0x3f343fd0, 0x3f003f0d, 0x3f053f07, 0x3f133f1c,
+    0x3f433f11, 0x3f5c3f44, 0x3cff3f51, 0x3cf33cfc, 0x3cf43cf1, 0x3cc03ccd, 0x3cc73cc1, 0x3cdc3cc5,
+    0x3cd43cd1, 0x3c373c30, 0x3c0c3c35, 0x3c003c03, 0x3c043c01, 0x3c103c05, 0x3c153c17, 0x3c733c7c,
+    0x3c4f3c71, 0x3c403c4d, 0x3c5c3c5f, 0x3df03c5d, 0x3dc33dcc, 0x3dd03dc1, 0x3d0d3d3c, 0x3d053d00,
+    0x3d143d13, 0x3d433d74, 0x33fc3d50, 0x33c433c0, 0x333033d4, 0x33353337, 0x3303330c, 0x33013300,
+    0x331d331c, 0x33173310, 0x337c3315, 0x33743371, 0x334d334f, 0x335f3340, 0x3354335c, 0x30fd30fc,
+    0x30f530f0, 0x30c330cc, 0x30c130c0, 0x30df30c4, 0x30d530d0, 0x3033303c, 0x30313030, 0x300f3034,
+    0x3003300c, 0x30013000, 0x30043007, 0x3013301c, 0x30113010, 0x307d3014, 0x30703073, 0x304c3077,
+    0x30403043, 0x30443041, 0x30503045, 0x30553057, 0x31f031fc, 0x31c331f4, 0x31c731c0, 0x31dc31c5,
+    0x31d431d3, 0x313d313f, 0x31373130, 0x310c310f, 0x3100310d, 0x31043101, 0x3110311d, 0x317c3117,
+    0x31753170, 0x31403143, 0x3153315c, 0x37f03151, 0x37c037cc, 0x37d037c5, 0x3734373d, 0x3700370f,
+    0x371c3707, 0x37113713, 0x37703714, 0x3743374c, 0x37443741, 0x34fc3750, 0x34f134f0, 0x34cf34f5,
+    0x34c034c3, 0x34dc34c7, 0x34d134d3, 0x3430343f, 0x340c3435, 0x3403340d, 0x34013400, 0x341f3404,
+    0x3410341d, 0x34153411, 0x34743471, 0x3440344d, 0x34473441, 0x3453345c, 0x34543451, 0x353335c1,
+    0x35343531, 0x35073500, 0x35133505, 0x35433514, 0x0ffc3550, 0x0ff00ff3, 0x0ff40ff1, 0x0fc00fcd,
+    0x0fdc0fc5, 0x0fd40fd3, 0x0f300f3f, 0x0f0c0f37, 0x0f000f03, 0x0f040f01, 0x0f170f10, 0x0f740f71,
+    0x0f470f40, 0x0f5c0f5f, 0x0f540f51, 0x0cf70cf0, 0x0cf50cf4, 0x0cc30ccc, 0x0cc10cc0, 0x0cc40cc7,
+    0x0cd00cdf, 0x0cd70cd1, 0x0c3c0cd5, 0x0c300c33, 0x0c340c31, 0x0c0c0c0f, 0x0c030c0d, 0x0c010c00,
+    0x0c040c07, 0x0c1c0c05, 0x0c100c13, 0x0c140c11, 0x0c700c7d, 0x0c430c4c, 0x0c410c40, 0x0c5f0c44,
+    0x0c550c50, 0x0df10dfc, 0x0dc00dcd, 0x0ddc0dc5, 0x0d3d0dd3, 0x0d350d30, 0x0d030d0c, 0x0d010d00,
+    0x0d1d0d04, 0x0d700d10, 0x0d4d0d4f, 0x0d440d40, 0x0d530d45, 0x03f003f3, 0x03c303cc, 0x03c103c0,
+    0x03c403c7, 0x03d003dc, 0x03d503d7, 0x0333033c, 0x03310330, 0x03350334, 0x030c030f, 0x03000303,
+    0x03070301, 0x03050304, 0x031d031c, 0x03100313, 0x03140311, 0x0377037f, 0x034c0375, 0x03400343,
+    0x03440341, 0x0353035c, 0x03550350, 0x00fd00fc, 0x00f000f3, 0x00f400f1, 0x00cc00cf, 0x00c300cd,
+    0x00c100c0, 0x00c500c4, 0x00d300dc, 0x00d100d0, 0x003f00d4, 0x003d003c, 0x00300033, 0x00370031,
+    0x000f0034, 0x000d000c, 0x00000003, 0x00070001, 0x00050004, 0x001c001f, 0x00100013, 0x00170011,
+    0x00150014, 0x0073007c, 0x00740070, 0x004f0075, 0x0043004c, 0x00410040, 0x00440047, 0x0053005c,
+    0x00510050, 0x01ff0054, 0x01fd01fc, 0x01f101f3, 0x01f401f7, 0x01c301cc, 0x01c701c0, 0x01df01c4,
+    0x01dd01dc, 0x01d001d3, 0x01d701d1, 0x013c01d4, 0x01310130, 0x01340137, 0x010f0135, 0x010d010c,
+    0x01000103, 0x01070101, 0x01050104, 0x0113011c, 0x01140110, 0x0170017d, 0x01770171, 0x01750174,
+    0x0140014c, 0x015d0145, 0x01510150, 0x01540157, 0x07f007f3, 0x07f407f1, 0x07c007cf, 0x07dc07c7,
+    0x073007d5, 0x07350737, 0x0703070c, 0x07010700, 0x07040707, 0x071d071f, 0x07100713, 0x0774077d,
+    0x074d074f, 0x07470740, 0x0754075c, 0x04fd04fc, 0x04f504f0, 0x04c304cc, 0x04c104c0, 0x04d004c4,
+    0x0433043c, 0x04310430, 0x040f0434, 0x040d040c, 0x04000403, 0x04070401, 0x04050404, 0x0413041c,
+    0x04110410, 0x047c0414, 0x04740470, 0x0443044c, 0x04410440, 0x04440447, 0x05f30450, 0x05c005f7,
+    0x05df05c5, 0x05d105d0, 0x053005d4, 0x05340537, 0x0500050c, 0x05070501, 0x051d0504, 0x05170510,
+    0x057c0515, 0x054d0575, 0x05410540, 0x05450547, 0x1ff0055c, 0x1fc11fc3, 0x1fd01fc4, 0x1f0f1f33,
+    0x1f011f00, 0x1f051f07, 0x1f131f1c, 0x1f141f11, 0x1f411f7c, 0x1cfc1f50, 0x1cf11cf3, 0x1ccd1cf4,
+    0x1cdc1cc0, 0x1cd11cdd, 0x1c301cd4, 0x1c0c1c34, 0x1c011c00, 0x1c101c04, 0x1c151c11, 0x1c751c73,
+    0x1c401c4d, 0x1c511c5c, 0x1dcc1c54, 0x1dc41dc1, 0x1d3c1d3f, 0x1d001d31, 0x1d071d01, 0x1d701d1f,
+    0x1d411d4c, 0x13cc1d50, 0x13c013cd, 0x13c513c1, 0x13d113dc, 0x133f13d4, 0x1330133d, 0x13351337,
+    0x1303130c, 0x13011300, 0x13051304, 0x131d131f, 0x13731310, 0x13741370, 0x134d134f, 0x13401343,
+    0x13471341, 0x135c1345, 0x13541353, 0x10f710f0, 0x10cc10f5, 0x10c110c0, 0x103310c4, 0x10311030,
+    0x100f1034, 0x1003100c, 0x10011000, 0x101c1004, 0x10101013, 0x10141011, 0x10741071, 0x104c1075,
+    0x10411040, 0x10451044, 0x1050105d, 0x10571051, 0x11f411fd, 0x11df11c0, 0x11d711d1, 0x113f11d4,
+    0x11371130, 0x110c1135, 0x11001103, 0x11071101, 0x111f1105, 0x11171110, 0x117d117f, 0x11751170,
+    0x11411143, 0x11441147, 0x1153115f, 0x11551151, 0x17c417c1, 0x173c17d0, 0x1700170d, 0x171c1705,
+    0x17701714, 0x1747174c, 0x14fc1751, 0x14cf14f3, 0x14dc14c0, 0x14d114d3, 0x143f14d4, 0x1430143c,
+    0x14371431, 0x1403140c, 0x14011400, 0x141f1404, 0x14151410, 0x1473147d, 0x14401475, 0x1453145c,
+    0x14541450, 0x15c115cc, 0x153c15c7, 0x15341533, 0x1500150f, 0x15051507, 0x15101513, 0x15711514,
+    0x15471543, 0x15511545, 0x7ffd7fff, 0x7ff57ff7, 0x7fdd7fdf, 0x7fd57fd7, 0x7f0f7f30, 0x7f037f0c,
+    0x7f047f01, 0x7f7f7f10, 0x7f777f7d, 0x7f407f75, 0x7f5d7f5f, 0x7f557f57, 0x7ccc7cf0, 0x7cc17cc3,
+    0x7cd07cc4, 0x7c337c3c, 0x7c0f7c34, 0x7c007c0d, 0x7c077c01, 0x7c137c04, 0x7c147c11, 0x7c747c70,
+    0x7c417c43, 0x7c507c44, 0x7dfd7dff, 0x7df57df7, 0x7ddf7dc0, 0x7dd77ddd, 0x7d0c7dd5, 0x7d047d03,
+    0x7d7f7d10, 0x7d777d7d, 0x7d407d75, 0x7d5d7d5f, 0x7d557d57, 0x73c473c3, 0x7333733c, 0x7300730c,
+    0x731c7305, 0x73147313, 0x73447343, 0x70f470fc, 0x70c070cd, 0x70d170c5, 0x703f70d4, 0x7030703c,
+    0x700c7037, 0x70007003, 0x70047001, 0x70107005, 0x70177011, 0x707c7015, 0x70717073, 0x704f7074,
+    0x7040704d, 0x70517047, 0x71c171cc, 0x71d071c4, 0x7133713c, 0x71357134, 0x7100710f, 0x71057104,
+    0x7111711c, 0x71707115, 0x7145714c, 0x77ff7153, 0x77f777fd, 0x77c077f5, 0x77dd77df, 0x77d577d7,
+    0x7730773c, 0x7703770c, 0x77107704, 0x777f7714, 0x7777777d, 0x77407775, 0x775d775f, 0x77557757,
+    0x74f174f0, 0x74c374cc, 0x74d074c1, 0x7433743c, 0x74347431, 0x740d740f, 0x74057400, 0x7413741c,
+    0x74417470, 0x74507444, 0x75fd75ff, 0x75f575f7, 0x75df75c0, 0x75d775dd, 0x753075d5, 0x7503750c,
+    0x757f7501, 0x7577757d, 0x75407575, 0x755d755f, 0x75557557, 0x4fcc4ff0, 0x4fc74fc1, 0x4fd04fc4,
+    0x4f314f3c, 0x4f004f34, 0x4f054f07, 0x4f154f14, 0x4f4c4f70, 0x4f414f43, 0x4f504f44, 0x4cf34cfc,
+    0x4cf44cf1, 0x4cc04ccf, 0x4cc54cc7, 0x4cd34cdc, 0x4cd44cd1, 0x4c304c3f, 0x4c0c4c0f, 0x4c004c03,
+    0x4c044c01, 0x4c104c1d, 0x4c714c73, 0x4c404c4d, 0x4c5c4c47, 0x4c514c53, 0x4df04c54, 0x4dc34dcc,
+    0x4dd04dc4, 0x4d314d33, 0x4d0f4d34, 0x4d004d0d, 0x4d114d07, 0x4d704d14, 0x4d414d43, 0x43fc4d54,
+    0x43f143f3, 0x43c043cf, 0x43d143c7, 0x4335433f, 0x4303430c, 0x43014300, 0x43044307, 0x431c431f,
+    0x4310431d, 0x43714373, 0x4343434d, 0x43474340, 0x4354435c, 0x40f040ff, 0x40f540f7, 0x40cc40cf,
+    0x40c040c3, 0x40c440c1, 0x40d040dc, 0x40d540d4, 0x4033403c, 0x40314030, 0x400f4034, 0x400d400c,
+    0x40004003, 0x40074001, 0x40054004, 0x4013401c, 0x40114010, 0x407c4014, 0x40774070, 0x404d404c,
+    0x40404043, 0x40444041, 0x405f4045, 0x4050405d, 0x40554057, 0x41f341fc, 0x41c041cf, 0x41df41c4,
+    0x41d441d1, 0x41374130, 0x410c4134, 0x4100410d, 0x41044101, 0x41174110, 0x4173417d, 0x41754174,
+    0x4143414d, 0x41534140, 0x41544151, 0x47c147f0, 0x47d047c4, 0x4731473c, 0x470d470f, 0x47014700,
+    0x47134705, 0x47704710, 0x4741474c, 0x47504744, 0x44f144f3, 0x44cf44f4, 0x44c044cd, 0x44c544c7,
+    0x44dc44df, 0x44d144d3, 0x443d443f, 0x44374430, 0x440c4435, 0x44004403, 0x44044401, 0x4410441d,
+    0x44154411, 0x4473447c, 0x444d444f, 0x44454440, 0x4451445c, 0x45c045f0, 0x453345d0, 0x45344531,
+    0x4500450f, 0x451c4507, 0x454c4570, 0x45404543, 0x5fff4541, 0x5ff75ffd, 0x5fc05ff5, 0x5fdd5fdf,
+    0x5fd55fd7, 0x5f0c5f30, 0x5f015f03, 0x5f7f5f04, 0x5f775f7d, 0x5f405f75, 0x5f5d5f5f, 0x5f555f57,
+    0x5cf45cf0, 0x5cc35ccc, 0x5cc45cc1, 0x5c315cc5, 0x5c0c5c34, 0x5c075c00, 0x5c1c5c05, 0x5c705c13,
+    0x5c4d5c4f, 0x5c445c41, 0x5df75dfd, 0x5dcf5df5, 0x5ddd5dc4, 0x5dd55dd7, 0x5d0c5d30, 0x5d045d01,
+    0x5d7f5d10, 0x5d775d7d, 0x5d405d75, 0x5d5d5d5f, 0x5d555d57, 0x53d053c4, 0x5333533c, 0x5303530f,
+    0x53075300, 0x531c5305, 0x53115310, 0x53145317, 0x50f15370, 0x50cf50f4, 0x50c050cd, 0x50d150c7,
+    0x503d50d4, 0x500c5030, 0x50005003, 0x50045001, 0x50155010, 0x5073507c, 0x50715070, 0x504d5074,
+    0x50475040, 0x51cc51f0, 0x51c551c1, 0x51d051dc, 0x51315133, 0x510d5135, 0x51015100, 0x511f5107,
+    0x5171511d, 0x5140514f, 0x51445141, 0x5153515c, 0x57ff5151, 0x57f757fd, 0x57df57f5, 0x57d757dd,
+    0x570c57d5, 0x57015703, 0x577f5704, 0x5777577d, 0x57405775, 0x575d575f, 0x57555757, 0x54c354f0,
+    0x54dc54c4, 0x543c54d0, 0x5400540f, 0x541c5405, 0x54145411, 0x5441544f, 0x55fd55ff, 0x55f555f7,
+    0x55dd55df, 0x55d555d7, 0x5503550c, 0x557f5501, 0x5577557d, 0x55405575, 0x555d555f, 0x55555557
+);
+
+#enddecl(IQ1_TABLE)
+
+#decl(IQ1_S)
+
+struct iq1_s {
+    d: f16,
+    qs: array<f16, 16>,
+    qh: array<f16, 8>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block = src0[src0_idx_base + offset];
+    let d = f32(block.d);
+    var src1_i = src1_idx_base + offset * 256;
+    var sum = 0.0;
+    for (var ib: u32 = 0; ib < 8; ib++) {
+        let qh = bitcast<u32>(vec2(block.qh[ib], 0.0));
+        let dl = d * (2 * f32((qh >> 12) & 7) + 1);
+        let delta = select(IQ1_DELTA, -IQ1_DELTA, (qh & 0x8000) != 0);
+        let qs_w = bitcast<u32>(vec2(block.qs[ib * 2], block.qs[ib * 2 + 1]));
+        for (var l: u32 = 0; l < 4; l++) {
+            let ig = (get_byte(qs_w, l) | (((qh >> (3 * l)) & 7) << 8)) * 8;
+            for (var j: u32 = 0; j < 8; j++) {
+                let gw = iq1_grid[(ig + j) / 16];
+                let g = (gw >> (((ig + j) % 16) * 2)) & 3;
+                let gs = bitcast<i32>(g << 30) >> 30;
+                sum += dl * (f32(gs) + delta) * src1[src1_i];
+                src1_i++;
+            }
+        }
+    }
+    return sum;
+}
+
+#enddecl(IQ1_S)
+
+#decl(IQ1_M)
+
+struct iq1_m {
+    qs: array<u32, 8>,
+    qh: array<u32, 4>,
+    scales: array<u32, 2>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block = src0[src0_idx_base + offset];
+
+    let scale = ((block.scales[0] >> 12) & 0xF) | ((block.scales[0] >> 24) & 0x00F0) | ((block.scales[1] >> 4) & 0x0F00) | ((block.scales[1] >> 16) & 0xF000);
+    let d = f32(bitcast<vec2<f16>>(scale).x);
+    var src1_i = src1_idx_base + offset * 256;
+    var sum = 0.0;
+    for (var ib: u32 = 0; ib < 8; ib++) {
+        let sw = (block.scales[ib / 4] >> (16 * ((ib / 2) % 2))) & 0xFFFF;
+        let s1 : u32 = (sw >> (6 * (ib % 2))) & 0x7;
+        let s2 : u32 = (sw >> (6 * (ib % 2) + 3)) & 0x7;
+        var dl = array<f32, 2>(
+            d * f32(2 * s1 + 1),
+            d * f32(2 * s2 + 1)
+        );
+
+        let qh = block.qh[ib / 2] >> (16 * (ib % 2));
+        var idx = array<u32, 4>(
+            get_byte(block.qs[ib], 0) | ((qh << 8) & 0x700),
+            get_byte(block.qs[ib], 1) | ((qh << 4) & 0x700),
+            get_byte(block.qs[ib], 2) | ((qh) & 0x700),
+            get_byte(block.qs[ib], 3) | ((qh >> 4) & 0x700)
+        );
+        var delta = array<f32, 4>(
+            select(IQ1_DELTA, -IQ1_DELTA, (qh & 0x08) != 0),
+            select(IQ1_DELTA, -IQ1_DELTA, (qh & 0x80) != 0),
+            select(IQ1_DELTA, -IQ1_DELTA, ((qh >> 8) & 0x08) != 0),
+            select(IQ1_DELTA, -IQ1_DELTA, ((qh >> 8) & 0x80) != 0)
+        );
+        for (var l: u32 = 0; l < 4; l++) {
+            let ig = idx[l] * 8;
+            for (var j: u32 = 0; j < 8; j++) {
+                let gw = iq1_grid[(ig + j) / 16];
+                let g = (gw >> (((ig + j) % 16) * 2)) & 3;
+                let gs = bitcast<i32>(g << 30) >> 30;
+                sum += dl[l/2] * (f32(gs) + delta[l]) * src1[src1_i];
+                src1_i++;
+            }
+        }
+    }
+    return sum;
+}
+
+#enddecl(IQ1_M)
+
+#decl(IQ4_TABLE)
+
+const kvalues_iq4nl = array<i32, 16>(
+    -127, -104, -83, -65, -49, -35, -22, -10, 1, 13, 25, 38, 53, 69, 89, 113
+);
+
+#enddecl(IQ4_TABLE)
+
+#decl(IQ4_NL)
+
+struct iq4_nl {
+    d: f16,
+    qs: array<f16, 8>,
+}
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block = src0[src0_idx_base + offset];
+    let d = f32(block.d);
+    var src1_i = src1_idx_base + offset * 32;
+    var sum = 0.0;
+    var qs: array<u32, 4>;
+    for (var i: u32 = 0; i < 4; i++) {
+        qs[i] = bitcast<u32>(vec2(block.qs[i * 2], block.qs[i * 2 + 1]));
+    }
+    for (var j: u32 = 0; j < 16; j++) {
+        let qsb = get_byte(qs[j / 4], j % 4);
+        sum += d * f32(kvalues_iq4nl[qsb & 0xF]) * src1[src1_i];
+        sum += d * f32(kvalues_iq4nl[qsb >> 4]) * src1[src1_i + 16];
+        src1_i++;
+    }
+    return sum;
+}
+
+#enddecl(IQ4_NL)
+
+#decl(IQ4_XS)
+
+struct iq4_xs {
+    d: f16,
+    scales_h: f16,
+    scales_l: u32,
+    qs: array<u32, 32>
+};
+
+fn multiply_add(src0_idx_base: u32, src1_idx_base: u32, offset: u32) -> f32 {
+    let block = src0[src0_idx_base + offset];
+    let d = f32(block.d);
+    let scales_h = bitcast<u32>(vec2(block.scales_h, 0.0));
+    var src1_i = src1_idx_base + offset * 256;
+    var sum = 0.0;
+    for (var ib: u32 = 0; ib < 8; ib++) {
+        let ls = ((get_byte(block.scales_l, ib / 2) >> (4 * (ib % 2))) & 0xF) | (((scales_h >> (2 * ib)) & 3) << 4);
+        let dl = d * (f32(ls) - 32.0);
+        for (var j: u32 = 0; j < 16; j++) {
+            let iqs = ib * 16 + j;
+            let qsb = get_byte(block.qs[iqs / 4], iqs % 4);
+            sum += dl * f32(kvalues_iq4nl[qsb & 0xF]) * src1[src1_i];
+            sum += dl * f32(kvalues_iq4nl[qsb >> 4]) * src1[src1_i + 16];
+            src1_i++;
+        }
+        src1_i += 16;
+    }
+    return sum;
+}
+
+#enddecl(IQ4_XS)
+
+#end(DECLS)
+
+#define(SHADER)
+
+enable f16;
+
+DECLS
+
+struct MulMatParams {
+    offset_src0: u32, // in elements/blocks
+    offset_src1: u32, // in elements/blocks
+    offset_dst: u32, // in elements/blocks
+    m: u32,
+    n: u32,
+    k: u32,
+    // all strides are in elements/blocks
+    stride_01: u32,
+    stride_11: u32,
+    stride_02: u32,
+    stride_12: u32,
+    stride_03: u32,
+    stride_13: u32,
+
+    bs02: u32,
+    bs03: u32,
+    broadcast2: u32,
+    broadcast3: u32
+};
+
+@group(0) @binding(0) var<storage, read_write> src0: array<{{SRC0_TYPE}}>; // N rows, K columns
+@group(0) @binding(1) var<storage, read_write> src1: array<{{SRC1_TYPE}}>; // M rows, K columns (transposed)
+@group(0) @binding(2) var<storage, read_write> dst: array<f32>; // M rows, N columns
+
+@group(0) @binding(3) var<uniform> params: MulMatParams;
+
+@compute @workgroup_size(64)
+fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
+    let total = params.m * params.n * params.bs02 * params.broadcast2 * params.bs03 * params.broadcast3;
+    if (global_id.x >= total) {
+        return;
+    }
+
+    let dst2_stride = params.m * params.n;
+    let dst3_stride = dst2_stride * params.bs02 * params.broadcast2;
+
+    let dst3_idx = global_id.x / dst3_stride;
+    let src03_idx = dst3_idx / params.broadcast3; // src0 may be broadcast along the third dimension
+    let src13_idx = dst3_idx; // src1 is not broadcast
+    let dst3_rem = global_id.x % dst3_stride;
+
+    let dst2_idx = dst3_rem / dst2_stride;
+    let src02_idx = dst2_idx / params.broadcast2; // src0 may also be broadcast along the second dimension
+    let src12_idx = dst2_idx; // src1 is not broadcast
+
+    let dst2_rem = dst3_rem % dst2_stride;
+
+    let row = dst2_rem / params.n; // output row
+    let col = dst2_rem % params.n; // output column
+
+    let src0_idx_base = params.offset_src0 + src03_idx * params.stride_03 + src02_idx * params.stride_02 + col * params.stride_01;
+    let src1_idx_base = params.offset_src1 + src13_idx * params.stride_13 + src12_idx * params.stride_12 + row * params.stride_11;
+
+    var sum = 0.0;
+    for (var i: u32 = 0u; i < params.k/{{BLOCK_SIZE}}; i = i + 1u) {
+        sum += multiply_add(src0_idx_base, src1_idx_base, i);
+    }
+    dst[params.offset_dst + dst3_idx * dst3_stride + dst2_idx * dst2_stride + row * params.n + col] = sum;
+}
+
+#end(SHADER)
diff --git a/ggml/src/ggml-webgpu/wgsl-shaders/mul_mat.wgsl b/ggml/src/ggml-webgpu/wgsl-shaders/mul_mat.wgsl
deleted file mode 100644 (file)
index 054aab5..0000000
+++ /dev/null
@@ -1,56 +0,0 @@
-struct MulMatParams {
-    m: u32,
-    n: u32,
-    k: u32,
-    // all strides are in elements
-    stride_01: u32,
-    stride_11: u32,
-    stride_02: u32,
-    stride_12: u32,
-    stride_03: u32,
-    stride_13: u32,
-
-    bs02: u32,
-    bs03: u32,
-    broadcast2: u32,
-    broadcast3: u32
-};
-
-@group(0) @binding(0) var<storage, read_write> src0: array<f32>; // N rows, K columns
-@group(0) @binding(1) var<storage, read_write> src1: array<f32>; // M rows, K columns (transposed)
-@group(0) @binding(2) var<storage, read_write> dst: array<f32>; // M rows, N columns
-
-@group(0) @binding(3) var<uniform> params: MulMatParams;
-
-@compute @workgroup_size(64)
-fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
-    let total = params.m * params.n * params.bs02 * params.broadcast2 * params.bs03 * params.broadcast3;
-    if (global_id.x >= total) {
-        return;
-    }
-
-    let dst2_stride = params.m * params.n;
-    let dst3_stride = dst2_stride * params.bs02 * params.broadcast2;
-
-    let dst3_idx = global_id.x / dst3_stride;
-    let src03_idx = dst3_idx / params.broadcast3; // src0 may be broadcast along the third dimension
-    let src13_idx = dst3_idx; // src1 is not broadcast
-    let dst3_rem = global_id.x % dst3_stride;
-
-    let dst2_idx = dst3_rem / dst2_stride;
-    let src02_idx = dst2_idx / params.broadcast2; // src0 may also be broadcast along the second dimension
-    let src12_idx = dst2_idx; // src1 is not broadcast
-
-    let dst2_rem = dst3_rem % dst2_stride;
-
-    let row = dst2_rem / params.n; // output row
-    let col = dst2_rem % params.n; // output column
-
-    var sum = 0.0;
-    for (var i: u32 = 0u; i < params.k; i = i + 1u) {
-        let src0_idx = src03_idx * params.stride_03 + src02_idx * params.stride_02 + col * params.stride_01 + i;
-        let src1_idx = src13_idx * params.stride_13 + src12_idx * params.stride_12 + row * params.stride_11 + i;
-        sum = sum + src0[src0_idx] * src1[src1_idx];
-    }
-    dst[dst3_idx * dst3_stride + dst2_idx * dst2_stride + row * params.n + col] = sum;
-}