diff options
Diffstat (limited to '1/repair_avx.asm')
| -rw-r--r-- | 1/repair_avx.asm | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/1/repair_avx.asm b/1/repair_avx.asm deleted file mode 100644 index 4f128f6..0000000 --- a/1/repair_avx.asm +++ /dev/null @@ -1,21 +0,0 @@ -global repair_avx_inner - -section .text - -repair_avx_inner: -%assign i 0 -%rep 25 - vpcmpeqd ymm1, ymm0, [rdi + i] -; vptest ymm1, ymm1 ; slower then vpmovmskb + test - vpmovmskb eax, ymm1 - test eax, eax - jne .found -%assign i i+32 -%endrep - xor eax, eax ; not found, return 0 - vzeroupper ; eliminate performance penalties caused by false dependencies when transitioning between AVX and legacy SSE instructions - ret -.found: - vzeroupper ; eliminate performance penalties caused by false dependencies when transitioning between AVX and legacy SSE instructions - movd eax, xmm0 ; smaller then putting a vmovd before the vzeroupper and no measurable performance difference - ret |