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gcc 4.2 does not support xgetbv

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MITSUNARI Shigeo 2011-04-05 17:21:19 +09:00
parent 82c2ea58c0
commit 0f7dea2f31
1 changed files with 3 additions and 1 deletions
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4
xbyak/xbyak_util.h
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@ -72,10 +72,12 @@ public:
{
#ifdef _MSC_VER
return __xgetbv(0);
#else
#elif __GNUC_PREREQ(4, 3)
unsigned int eax, edx;
__asm__ volatile("xgetbv" : "=a"(eax), "=d"(edx) : "c"(0));
return ((uint64)edx << 32) | eax;
#else
return 0;
#endif
}
enum Type {