diff options
Diffstat (limited to 'sysdeps/x86_64/strcmp.S')
| -rw-r--r-- | sysdeps/x86_64/strcmp.S | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/sysdeps/x86_64/strcmp.S b/sysdeps/x86_64/strcmp.S index 19e54bd3a7..7c3cf87a42 100644 --- a/sysdeps/x86_64/strcmp.S +++ b/sysdeps/x86_64/strcmp.S @@ -1,4 +1,4 @@ -/* Highly optimized version for x86-64. +/* strcmp dispatch for RTLD and non-multiarch build Copyright (C) 1999-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -18,5 +18,14 @@ /* Symbol = strcmp. */ -#include "multiarch/strcmp-sse2.S" +#define DEFAULT_IMPL_V1 "multiarch/strcmp-sse2.S" +/* strcmp-sse2-unaligned.S is often faster than strcmp-sse42.S and + doesn't have the drawback of using the `pcmpstri` instruction + which can be very slow on some CPUs. */ +#define DEFAULT_IMPL_V2 "multiarch/strcmp-sse2-unaligned.S" +#define DEFAULT_IMPL_V3 "multiarch/strcmp-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/strcmp-evex.S" + +#include "isa-default-impl.h" + libc_hidden_builtin_def (strcmp) |