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| author | H.J. Lu <hongjiu.lu@intel.com> | 2009-07-20 21:06:50 -0700 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-07-20 21:06:50 -0700 |
| commit | 2b7a8664fa86a182c053b6743f36a5ea8bf6bf6f (patch) | |
| tree | 0f7562c05a52ebf1045f02ed2e3dadc94aea5d90 /sysdeps/x86_64/multiarch/strstr-c.c | |
| parent | 63fbc91bec5623ab002c6e3ae1f3cd08a5f010fd (diff) | |
| download | glibc-2b7a8664fa86a182c053b6743f36a5ea8bf6bf6f.tar.gz glibc-2b7a8664fa86a182c053b6743f36a5ea8bf6bf6f.tar.xz glibc-2b7a8664fa86a182c053b6743f36a5ea8bf6bf6f.zip | |
SSE4.2 strstr/strcasestr for x86-64.
This patch implements SSE4.2 strstr/strcasestr, using Knuth-Morris-Pratt string searching algorithm.
Diffstat (limited to 'sysdeps/x86_64/multiarch/strstr-c.c')
| -rw-r--r-- | sysdeps/x86_64/multiarch/strstr-c.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sysdeps/x86_64/multiarch/strstr-c.c b/sysdeps/x86_64/multiarch/strstr-c.c new file mode 100644 index 0000000000..cff99b71ef --- /dev/null +++ b/sysdeps/x86_64/multiarch/strstr-c.c @@ -0,0 +1,12 @@ +#include "init-arch.h" + +#define STRSTR __strstr_sse2 +#undef libc_hidden_builtin_def +#define libc_hidden_builtin_def(name) \ + __hidden_ver1 (__strstr_sse2, __GI_strstr, __strstr_sse2); + +#include "string/strstr.c" + +extern char *__strstr_sse42 (const char *, const char *); + +libc_ifunc (strstr, HAS_SSE4_2 ? __strstr_sse42 : __strstr_sse2); |