diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/memcpy_chk.S')
| -rw-r--r-- | sysdeps/x86_64/multiarch/memcpy_chk.S | 40 |
1 files changed, 28 insertions, 12 deletions
diff --git a/sysdeps/x86_64/multiarch/memcpy_chk.S b/sysdeps/x86_64/multiarch/memcpy_chk.S index 648217e971..11f13104c2 100644 --- a/sysdeps/x86_64/multiarch/memcpy_chk.S +++ b/sysdeps/x86_64/multiarch/memcpy_chk.S @@ -30,24 +30,40 @@ ENTRY(__memcpy_chk) .type __memcpy_chk, @gnu_indirect_function LOAD_RTLD_GLOBAL_RO_RDX -#ifdef HAVE_AVX512_ASM_SUPPORT +# ifdef HAVE_AVX512_ASM_SUPPORT HAS_ARCH_FEATURE (AVX512F_Usable) - jz 1f + jz 1f + lea __memcpy_chk_avx512_no_vzeroupper(%rip), %RAX_LP HAS_ARCH_FEATURE (Prefer_No_VZEROUPPER) - jz 1f - leaq __memcpy_chk_avx512_no_vzeroupper(%rip), %rax + jnz 2f + lea __memcpy_chk_avx512_unaligned_erms(%rip), %RAX_LP + HAS_CPU_FEATURE (ERMS) + jnz 2f + lea __memcpy_chk_avx512_unaligned(%rip), %RAX_LP ret -#endif -1: leaq __memcpy_chk_sse2(%rip), %rax +# endif +1: lea __memcpy_chk_avx_unaligned(%rip), %RAX_LP + HAS_ARCH_FEATURE (AVX_Fast_Unaligned_Load) + jz L(Fast_Unaligned_Load) + HAS_CPU_FEATURE (ERMS) + jz 2f + lea __memcpy_chk_avx_unaligned_erms(%rip), %RAX_LP + ret +L(Fast_Unaligned_Load): + lea __memcpy_chk_sse2_unaligned(%rip), %RAX_LP + HAS_ARCH_FEATURE (Fast_Unaligned_Copy) + jz L(SSSE3) + HAS_CPU_FEATURE (ERMS) + jz 2f + lea __memcpy_chk_sse2_unaligned_erms(%rip), %RAX_LP + ret +L(SSSE3): HAS_CPU_FEATURE (SSSE3) jz 2f - leaq __memcpy_chk_ssse3(%rip), %rax + lea __memcpy_chk_ssse3_back(%rip), %RAX_LP HAS_ARCH_FEATURE (Fast_Copy_Backward) - jz 2f - leaq __memcpy_chk_ssse3_back(%rip), %rax - HAS_ARCH_FEATURE (AVX_Fast_Unaligned_Load) - jz 2f - leaq __memcpy_chk_avx_unaligned(%rip), %rax + jnz 2f + lea __memcpy_chk_ssse3(%rip), %RAX_LP 2: ret END(__memcpy_chk) # else |