diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/strlen-sse2.S')
| -rw-r--r-- | sysdeps/x86_64/multiarch/strlen-sse2.S | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/sysdeps/x86_64/multiarch/strlen-sse2.S b/sysdeps/x86_64/multiarch/strlen-sse2.S index 5be72267d5..a96ccbb2d5 100644 --- a/sysdeps/x86_64/multiarch/strlen-sse2.S +++ b/sysdeps/x86_64/multiarch/strlen-sse2.S @@ -16,15 +16,20 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#if IS_IN (libc) || defined STRLEN - -# ifndef STRLEN -# define STRLEN __strlen_sse2 -# endif +#include <isa-level.h> +/* ISA level >= 2 for both strlen and wcslen. wcslen uses `pminud` + which is SSE4.1. strlen doesn't have an ISA level == 2 + implementation so the SSE2 implementation must be built with ISA + level == 2. */ +# if ISA_SHOULD_BUILD (2) # include <sysdep.h> +# ifndef STRLEN +# define STRLEN __strlen_sse2 +# endif + # ifdef AS_WCSLEN # define PMINU pminud # define PCMPEQ pcmpeqd @@ -82,7 +87,7 @@ L(n_nonzero): suffice. */ mov %RSI_LP, %R10_LP sar $62, %R10_LP - jnz __wcslen_sse4_1 + jnz OVERFLOW_STRLEN sal $2, %RSI_LP # endif |