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| author | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-10-19 19:13:37 -0700 |
|---|---|---|
| committer | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-10-20 11:29:05 -0700 |
| commit | f04f8373ddd71794050b904174fb06967be6393f (patch) | |
| tree | 000c2792059cc252aa916d89882e846cb8820e67 /sysdeps/x86_64/multiarch | |
| parent | 7775574ce0527c326eaea78370bc9f49cc4743a6 (diff) | |
| download | glibc-f04f8373ddd71794050b904174fb06967be6393f.tar.gz glibc-f04f8373ddd71794050b904174fb06967be6393f.tar.xz glibc-f04f8373ddd71794050b904174fb06967be6393f.zip | |
x86: Use `testb` for case-locale check in str{n}casecmp-sse42
`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-sse4_2.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sysdeps/x86_64/multiarch/strcmp-sse4_2.S b/sysdeps/x86_64/multiarch/strcmp-sse4_2.S index dc6fc90e14..6b540ff894 100644 --- a/sysdeps/x86_64/multiarch/strcmp-sse4_2.S +++ b/sysdeps/x86_64/multiarch/strcmp-sse4_2.S @@ -119,7 +119,7 @@ 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 # endif # ifdef USE_AS_STRNCASECMP_L @@ -130,7 +130,7 @@ 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 |