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| author | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-10-19 19:13:36 -0700 |
|---|---|---|
| committer | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-10-20 11:29:05 -0700 |
| commit | 7775574ce0527c326eaea78370bc9f49cc4743a6 (patch) | |
| tree | 8ccfed9ee3f8bf34350fc66e0769ed52507156cf /sysdeps/x86_64/multiarch | |
| parent | b6d02d64570e83bedfdb946cb1bdf0c9fd6d3eb0 (diff) | |
| download | glibc-7775574ce0527c326eaea78370bc9f49cc4743a6.tar glibc-7775574ce0527c326eaea78370bc9f49cc4743a6.tar.gz glibc-7775574ce0527c326eaea78370bc9f49cc4743a6.tar.bz2 glibc-7775574ce0527c326eaea78370bc9f49cc4743a6.zip | |
x86: Use `testb` for case-locale check in str{n}casecmp-sse2
`testb` saves a bit of code size is the imm-operand can be encoded
1-bytes.
Tested on x86-64.
Diffstat (limited to 'sysdeps/x86_64/multiarch')
| -rw-r--r-- | sysdeps/x86_64/multiarch/strcmp-sse2.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sysdeps/x86_64/multiarch/strcmp-sse2.S b/sysdeps/x86_64/multiarch/strcmp-sse2.S index 3c69fc1df1..a975c924d8 100644 --- a/sysdeps/x86_64/multiarch/strcmp-sse2.S +++ b/sysdeps/x86_64/multiarch/strcmp-sse2.S @@ -104,7 +104,7 @@ ENTRY (STRCMP) # else mov (%rdx), %RAX_LP # endif - testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%rax) + testb $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%rax) jne __strcasecmp_l_nonascii # elif defined USE_AS_STRNCASECMP_L /* We have to fall back on the C implementation for locales @@ -114,7 +114,7 @@ ENTRY (STRCMP) # else mov (%rcx), %RAX_LP # endif - testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%rax) + testb $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%rax) jne __strncasecmp_l_nonascii # endif |