diff options
Diffstat (limited to 'elf/tst-audit6.c')
-rw-r--r-- | elf/tst-audit6.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/elf/tst-audit6.c b/elf/tst-audit6.c index 1f6dcb16e9..64209a152e 100644 --- a/elf/tst-audit6.c +++ b/elf/tst-audit6.c @@ -8,14 +8,28 @@ extern __m128i audit_test (__m128i, __m128i, __m128i, __m128i, __m128i, __m128i, __m128i, __m128i); -int -main (void) + +static int +avx_enabled (void) { unsigned int eax, ebx, ecx, edx; + if (__get_cpuid (1, &eax, &ebx, &ecx, &edx) == 0 + || (ecx & (bit_AVX | bit_OSXSAVE)) != (bit_AVX | bit_OSXSAVE)) + return 0; + + /* Check the OS has AVX and SSE saving enabled. */ + asm ("xgetbv" : "=a" (eax), "=d" (edx) : "c" (0)); + + return (eax & 6) == 6; +} + + +int +main (void) +{ /* Run AVX test only if AVX is supported. */ - if (__get_cpuid (1, &eax, &ebx, &ecx, &edx) - && (ecx & bit_AVX)) + if (avx_enabled ()) { __m128i xmm = _mm_setzero_si128 (); __m128i ret = audit_test (xmm, xmm, xmm, xmm, xmm, xmm, xmm, xmm); |