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Cycles: check for F16C support with __cpuid, as we do for BMI and BMI2

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This commit is contained in:
Sv. Lockal
2015-05-11 15:49:36 +00:00
parent 1bf685488c
commit c7bccb30bf
1 changed files with 4 additions and 1 deletions
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5
intern/cycles/util/util_system.cpp
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@@ -127,6 +127,7 @@ struct CPUCapabilities {
bool sse42; bool sse42;
bool sse4a; bool sse4a;
bool avx; bool avx;
bool f16c;
bool avx2; bool avx2;
bool xop; bool xop;
bool fma3; bool fma3;
@@ -202,6 +203,8 @@ static CPUCapabilities& system_cpu_capabilities()
caps.avx = (xcr_feature_mask & 0x6) == 0x6; caps.avx = (xcr_feature_mask & 0x6) == 0x6;
} }
caps.f16c = (result[2] & ((int)1 << 29)) != 0;
__cpuid(result, 0x00000007); __cpuid(result, 0x00000007);
caps.bmi1 = (result[1] & ((int)1 << 3)) != 0; caps.bmi1 = (result[1] & ((int)1 << 3)) != 0;
caps.bmi2 = (result[1] & ((int)1 << 8)) != 0; caps.bmi2 = (result[1] & ((int)1 << 8)) != 0;
@@ -242,7 +245,7 @@ bool system_cpu_support_avx()
bool system_cpu_support_avx2() bool system_cpu_support_avx2()
{ {
CPUCapabilities& caps = system_cpu_capabilities(); CPUCapabilities& caps = system_cpu_capabilities();
return caps.sse && caps.sse2 && caps.sse3 && caps.ssse3 && caps.sse41 && caps.avx && caps.avx2 && caps.fma3 && caps.bmi1 && caps.bmi2; return caps.sse && caps.sse2 && caps.sse3 && caps.ssse3 && caps.sse41 && caps.avx && caps.f16c && caps.avx2 && caps.fma3 && caps.bmi1 && caps.bmi2;
} }
#else #else