diff options
Diffstat (limited to 'sysdeps/x86_64/tst-audit6.c')
-rw-r--r-- | sysdeps/x86_64/tst-audit6.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/sysdeps/x86_64/tst-audit6.c b/sysdeps/x86_64/tst-audit6.c new file mode 100644 index 0000000000..64209a152e --- /dev/null +++ b/sysdeps/x86_64/tst-audit6.c @@ -0,0 +1,42 @@ +/* Test case for x86-64 preserved registers in dynamic linker. */ + +#include <stdlib.h> +#include <string.h> +#include <cpuid.h> +#include <emmintrin.h> + +extern __m128i audit_test (__m128i, __m128i, __m128i, __m128i, + __m128i, __m128i, __m128i, __m128i); + + +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 (avx_enabled ()) + { + __m128i xmm = _mm_setzero_si128 (); + __m128i ret = audit_test (xmm, xmm, xmm, xmm, xmm, xmm, xmm, xmm); + + xmm = _mm_set1_epi32 (0x98abcdef); + if (memcmp (&xmm, &ret, sizeof (ret))) + abort (); + } + return 0; +} |