[Bf-blender-cvs] [c7bccb3] master: Cycles: check for F16C support with __cpuid, as we do for BMI and BMI2
Sv. Lockal
noreply at git.blender.org
Mon May 11 17:53:23 CEST 2015
Commit: c7bccb30bf03a0ac4d6d135f94658c93be7b7b0f
Author: Sv. Lockal
Date: Mon May 11 15:49:36 2015 +0000
Branches: master
https://developer.blender.org/rBc7bccb30bf03a0ac4d6d135f94658c93be7b7b0f
Cycles: check for F16C support with __cpuid, as we do for BMI and BMI2
===================================================================
M intern/cycles/util/util_system.cpp
===================================================================
diff --git a/intern/cycles/util/util_system.cpp b/intern/cycles/util/util_system.cpp
index 7206455..4a88ef6 100644
--- a/intern/cycles/util/util_system.cpp
+++ b/intern/cycles/util/util_system.cpp
@@ -127,6 +127,7 @@ struct CPUCapabilities {
bool sse42;
bool sse4a;
bool avx;
+ bool f16c;
bool avx2;
bool xop;
bool fma3;
@@ -202,6 +203,8 @@ static CPUCapabilities& system_cpu_capabilities()
caps.avx = (xcr_feature_mask & 0x6) == 0x6;
}
+ caps.f16c = (result[2] & ((int)1 << 29)) != 0;
+
__cpuid(result, 0x00000007);
caps.bmi1 = (result[1] & ((int)1 << 3)) != 0;
caps.bmi2 = (result[1] & ((int)1 << 8)) != 0;
@@ -242,7 +245,7 @@ bool system_cpu_support_avx()
bool system_cpu_support_avx2()
{
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
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