From: katsu560 <redacted>
Date: Tue, 6 Dec 2022 18:32:48 +0000 (+0900)
Subject: add fp16/fp32 convert intrinsics
X-Git-Tag: upstream/1.7.4~1756
X-Git-Url: https://git.djapps.eu/?a=commitdiff_plain;h=35b40a93b94b421250110881a4dcc5e3f1897305;p=pkg%2Fggml%2Fsources%2Fwhisper.cpp

add fp16/fp32 convert intrinsics
---

diff --git a/ggml.c b/ggml.c
index b6d528d9..67e1977b 100644
--- a/ggml.c
+++ b/ggml.c
@@ -131,6 +131,16 @@ ggml_fp16_t ggml_fp32_to_fp16(float x) {
 // FP16 <-> FP32
 // ref: https://github.com/Maratyszcza/FP16
 
+#ifdef __F16C__
+float ggml_fp16_to_fp32(ggml_fp16_t h) {
+    return _cvtsh_ss(h);
+}
+ggml_fp16_t ggml_fp32_to_fp16(float f) {
+    return _cvtss_sh(f, 0);
+}
+
+#else
+
 static inline float fp32_from_bits(uint32_t w) {
     union {
         uint32_t as_bits;
@@ -196,6 +206,7 @@ ggml_fp16_t ggml_fp32_to_fp16(float f) {
     return (sign >> 16) | (shl1_w > UINT32_C(0xFF000000) ? UINT16_C(0x7E00) : nonsign);
 }
 #endif
+#endif
 
 //
 // global data