diff options
Diffstat (limited to 'gcc/testsuite/gcc.target/i386/avx-os-support.h')
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/avx-os-support.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/avx-os-support.h b/gcc/testsuite/gcc.target/i386/avx-os-support.h new file mode 100644 index 00000000000..21d332f7d3d --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/avx-os-support.h @@ -0,0 +1,10 @@ +/* Check if the OS supports executing AVX instructions. */ + +static int +avx_os_support (void) +{ + unsigned int eax, edx; + + __asm__ ("xgetbv" : "=a" (eax), "=d" (edx) : "c" (0)); + return (eax & 6) == 6; +} |