diff options
Diffstat (limited to 'lib/Support/Host.cpp')
| -rw-r--r-- | lib/Support/Host.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Support/Host.cpp b/lib/Support/Host.cpp index f91fb37e1d..fef66e634f 100644 --- a/lib/Support/Host.cpp +++ b/lib/Support/Host.cpp @@ -113,13 +113,13 @@ static bool GetX86CpuIDAndInfo(unsigned value, unsigned *rEAX, } static bool OSHasAVXSupport() {
-#if defined( __GNUC__ )
+#if defined(__GNUC__)
// Check xgetbv; this uses a .byte sequence instead of the instruction
// directly because older assemblers do not include support for xgetbv and
// there is no easy way to conditionally compile based on the assembler used.
int rEAX, rEDX;
__asm__ (".byte 0x0f, 0x01, 0xd0" : "=a" (rEAX), "=d" (rEDX) : "c" (0));
-#elif defined(_MSC_VER)
+#elif defined(_MSC_FULL_VER) && _MSC_FULL_VER >= 160040219
unsigned long long rEAX = _xgetbv(_XCR_XFEATURE_ENABLED_MASK);
#else
int rEAX = 0; // Ensures we return false
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