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show FMA3 and F16C flags when XMVerifyCPUSupport fails (#1180)

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Those are required, but not supported by older processors
that do support AVX. Omitting these flags in the output
can be confusing, since every required feature seems
to be supported.

Closes #1178
This commit is contained in:
Dennis Brakhane
2025-07-21 08:43:12 +02:00
committed by GitHub
parent 30fd382261
commit 261f90afbc
2 changed files with 22 additions and 0 deletions
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WickedEngine/Utility/cpuinfo.hpp
+8
View File
@@ -44,6 +44,8 @@ public:
inline bool haveSSE3() const { return mIsSSE3; }
inline bool haveSSE41() const { return mIsSSE41; }
inline bool haveSSE42() const { return mIsSSE42; }
inline bool haveF16C() const { return mIsF16C; }
inline bool haveFMA3() const { return mIsFMA3; }
inline bool haveAVX() const { return mIsAVX; }
inline bool haveAVX2() const { return mIsAVX2; }
inline bool haveAVX512F() const { return mIsAVX512F; }
@@ -57,7 +59,9 @@ private:
static constexpr uint32_t SSE42_POS = 0x00100000;
static constexpr uint32_t AVX_POS = 0x10000000;
static constexpr uint32_t AVX2_POS = 0x00000020;
static constexpr uint32_t FMA3_POS = 1u << 12;
static constexpr uint32_t AVX512F_POS = 1u << 15; // Bit 16
static constexpr uint32_t F16C_POS = 1u << 29;
static constexpr uint32_t LVL_NUM = 0x000000FF;
static constexpr uint32_t LVL_TYPE = 0x0000FF00;
static constexpr uint32_t LVL_CORES = 0x0000FFFF;
@@ -77,6 +81,8 @@ private:
bool mIsAVX = false;
bool mIsAVX2 = false;
bool mIsAVX512F = false;
bool mIsF16C = false;
bool mIsFMA3 = false;
};
CPUInfo::CPUInfo()
@@ -97,6 +103,8 @@ CPUInfo::CPUInfo()
mIsSSE41 = cpuID1.ECX() & SSE41_POS;
mIsSSE42 = cpuID1.ECX() & SSE41_POS;
mIsAVX = cpuID1.ECX() & AVX_POS;
mIsF16C = cpuID1.ECX() & F16C_POS;
mIsFMA3 = cpuID1.ECX() & FMA3_POS;
// Get AVX2 instructions availability
CPUID cpuID7(7, 0);
mIsAVX2 = cpuID7.EBX() & AVX2_POS;
WickedEngine/wiInitializer.cpp
+14
View File
@@ -75,6 +75,14 @@ namespace wi::initializer
{
cpustring.push_back("AVX; ");
}
if (cpuinfo.haveFMA3())
{
cpustring.push_back("FMA3; ");
}
if (cpuinfo.haveF16C())
{
cpustring.push_back("F16C; ");
}
if (cpuinfo.haveAVX2())
{
cpustring.push_back("AVX 2; ");
@@ -98,6 +106,12 @@ namespace wi::initializer
#ifdef _XM_AVX_INTRINSICS_
cpustring.push_back("AVX; ");
#endif // _XM_AVX_INTRINSICS_
#ifdef _XM_FMA3_INTRINSICS_
cpustring.push_back("FMA3; ");
#endif // _XM_FMA3_INTRINSICS_
#ifdef _XM_F16C_INTRINSICS_
cpustring.push_back("F16C; ");
#endif // _XM_F16C_INTRINSICS_
#ifdef _XM_AVX2_INTRINSICS_
cpustring.push_back("AVX 2; ");
#endif // _XM_AVX2_INTRINSICS_