P4 to Git Change 2014744 by vsytchen@vsytchen-ocl-win10-2 on 2019/10/16 17:37:46

SWDEV-207449 - [HIP CQE][HIPonPAL][LNX][QR] 6 hiptests failed on all ASICs

	hipTestHalf fails to build on Windows due to linker error "unresolved external symbol __gnu_h2f_ieee"

	1. Expose __gnu_h2f_ieee() and __gnu_f2h_ieee() for Windows builds.

	ReviewBoardURL = http://ocltc.amd.com/reviews/r/18127/diff/

Affected files ...

... //depot/stg/opencl/drivers/opencl/api/hip/hip_hcc.def.in#31 edit
... //depot/stg/opencl/drivers/opencl/api/hip/hip_platform.cpp#45 edit

hipamd/api/hip/hip_hcc.def.in

@@ -153,6 +153,8 @@ __hipRegisterFatBinary
 __hipRegisterFunction
 __hipRegisterVar
 __hipUnregisterFatBinary
+__gnu_h2f_ieee
+__gnu_f2h_ieee
 hipConfigureCall
 hipSetupArgument
 hipLaunchByPtr

hipamd/api/hip/hip_platform.cpp

@@ -869,6 +869,8 @@ void hipLaunchCooperativeKernelGGLImpl(
 
 }
 
+#endif // defined(ATI_OS_LINUX)
+
 // conversion routines between float and half precision
 static inline std::uint32_t f32_as_u32(float f) { union { float f; std::uint32_t u; } v; v.f = f; return v.u; }
 static inline float u32_as_f32(std::uint32_t u) { union { float f; std::uint32_t u; } v; v.u = u; return v.f; }
@@ -908,5 +910,3 @@ extern "C" float __gnu_h2f_ieee(unsigned short h){
 extern "C" unsigned short __gnu_f2h_ieee(float f){
   return (unsigned short)__convert_float_to_half(f);
 }
-
-#endif // defined(ATI_OS_LINUX)