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| author | Will Schmidt <will_schmidt@vnet.ibm.com> | 2011-09-07 21:56:57 -0400 |
|---|---|---|
| committer | Ulrich Drepper <drepper@gmail.com> | 2011-09-07 21:56:57 -0400 |
| commit | 2270037782b05f2973372fe12f6e8d2a8c413188 (patch) | |
| tree | cc3855afd057f3ce5d1b130461050b200619eede /sysdeps | |
| parent | 5025581e1c66a184a587ab1bd99cd168e8fb7770 (diff) | |
| download | glibc-2270037782b05f2973372fe12f6e8d2a8c413188.zip glibc-2270037782b05f2973372fe12f6e8d2a8c413188.tar.gz glibc-2270037782b05f2973372fe12f6e8d2a8c413188.tar.bz2 | |
power7 strncmp optimization
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/powerpc/powerpc32/power7/strncmp.S | 4 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/power7/strncmp.S | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/sysdeps/powerpc/powerpc32/power7/strncmp.S b/sysdeps/powerpc/powerpc32/power7/strncmp.S index 6a1422a..bcd13b6 100644 --- a/sysdeps/powerpc/powerpc32/power7/strncmp.S +++ b/sysdeps/powerpc/powerpc32/power7/strncmp.S @@ -27,7 +27,7 @@ const char *s2 [r4], size_t size [r5]) */ -EALIGN (BP_SYM(strncmp),4,0) +EALIGN (BP_SYM(strncmp),5,0) #define rTMP r0 #define rRTN r3 @@ -47,9 +47,11 @@ EALIGN (BP_SYM(strncmp),4,0) #define rBITDIF r11 /* bits that differ in s1 & s2 words */ dcbt 0,rSTR1 + nop or rTMP,rSTR2,rSTR1 lis r7F7F,0x7f7f dcbt 0,rSTR2 + nop clrlwi. rTMP,rTMP,30 cmplwi cr1,rN,0 lis rFEFE,-0x101 diff --git a/sysdeps/powerpc/powerpc64/power7/strncmp.S b/sysdeps/powerpc/powerpc64/power7/strncmp.S index 498b19c..4c02b11 100644 --- a/sysdeps/powerpc/powerpc64/power7/strncmp.S +++ b/sysdeps/powerpc/powerpc64/power7/strncmp.S @@ -27,7 +27,7 @@ const char *s2 [r4], size_t size [r5]) */ -EALIGN (BP_SYM(strncmp),4,0) +EALIGN (BP_SYM(strncmp),5,0) CALL_MCOUNT 3 #define rTMP r0 @@ -48,9 +48,11 @@ EALIGN (BP_SYM(strncmp),4,0) #define rBITDIF r11 /* bits that differ in s1 & s2 words */ dcbt 0,rSTR1 + nop or rTMP,rSTR2,rSTR1 lis r7F7F,0x7f7f dcbt 0,rSTR2 + nop clrldi. rTMP,rTMP,61 cmpldi cr1,rN,0 lis rFEFE,-0x101 |