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DNN: add the Winograd fp16 support (#23654)

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* add Winograd FP16 implementation

* fixed dispatching of FP16 code paths in dnn; use dynamic dispatcher only when NEON_FP16 is enabled in the build and the feature is present in the host CPU at runtime

* fixed some warnings

* hopefully fixed winograd on x64 (and maybe other platforms)

---------

Co-authored-by: Vadim Pisarevsky <vadim.pisarevsky@gmail.com>
This commit is contained in:
zihaomu
2023-11-20 18:45:37 +08:00
committed by GitHub
parent a478757483
commit b913e73d04
22 changed files with 1262 additions and 556 deletions
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cmake/checks/cpu_fp16.cpp
+5 -5
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@@ -15,12 +15,12 @@ int test()
#include "arm_neon.h"
int test()
{
const float src[] = { 0.0f, 0.0f, 0.0f, 0.0f };
short dst[8];
float32x4_t v_src = *(float32x4_t*)src;
const float src[] = { 0.0f, 1.0f, 2.0f, 3.0f };
short dst[4];
float32x4_t v_src = vld1q_f32(src);
float16x4_t v_dst = vcvt_f16_f32(v_src);
*(float16x4_t*)dst = v_dst;
return (int)dst[0];
vst1_f16((__fp16*)dst, v_dst);
return dst[0] + dst[1] + dst[2] + dst[3];
}
#else
#error "FP16 is not supported"