Commit c161ce3f7c

Andrew Kelley <andrew@ziglang.org>
2019-09-23 01:05:17
mingw-w64 libc: fix incorrect detection of _xgetbv
It was using __GNUC__ < 8 to check if _xgetbv intrinsic is available. Since we always use zig cc with this header, we know we have clang 9, which does have this intrinsic.
master
1 parent 23f339f
Changed files (1)
lib
libc
include
any-windows-any
psdk_inc
intrin-impl.h
lib/libc/include/any-windows-any/psdk_inc/intrin-impl.h
@@ -1938,32 +1938,6 @@ __buildmov(__movsd, unsigned __LONG32, "d")
 #define __INTRINSIC_DEFINED___movsd
 #endif /* __INTRINSIC_PROLOG */
 
-#if !defined(__GNUC__) || __GNUC__ < 8 /* GCC 8 has already defined _xgetbv */
-/* NOTE: This should be in immintrin.h */
-#if __INTRINSIC_PROLOG(_xgetbv)
-unsigned __int64 _xgetbv(unsigned int);
-#if !__has_builtin(_xgetbv)
-__INTRINSICS_USEINLINE
-unsigned __int64 _xgetbv(unsigned int index)
-{
-#if defined(__x86_64__) || defined(_AMD64_)
-   unsigned __int64 val1, val2;
-#else
-   unsigned __LONG32 val1, val2;
-#endif /* defined(__x86_64__) || defined(_AMD64_) */
-
-   __asm__ __volatile__(
-      "xgetbv"
-      : "=a" (val1), "=d" (val2)
-      : "c" (index));
-
-   return (((unsigned __int64)val2) << 32) | val1;
-}
-#endif
-#define __INTRINSIC_DEFINED__xgetbv
-#endif /* __INTRINSIC_PROLOG */
-#endif /* __GNUC__ < 8 */
-
 #endif /* defined(__x86_64__) || defined(_AMD64_) || defined(__i386__) || defined(_X86_) */
 
 /* ***************************************************** */