diff --git a/lib/Support/Host.cpp b/lib/Support/Host.cpp index f91fb37e1da..fef66e634f9 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