diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc32/strncmp.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc32/strncmp.S | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/sysdeps/powerpc/powerpc32/strncmp.S b/sysdeps/powerpc/powerpc32/strncmp.S index 3b33bb921f..3e0fff5ac2 100644 --- a/sysdeps/powerpc/powerpc32/strncmp.S +++ b/sysdeps/powerpc/powerpc32/strncmp.S @@ -47,6 +47,7 @@ EALIGN (BP_SYM(strncmp), 4, 0) lis r7F7F, 0x7f7f dcbt 0,rSTR2 clrlwi. rTMP, rTMP, 30 + cmplwi cr1, rN, 0 lis rFEFE, -0x101 bne L(unaligned) /* We are word alligned so set up for two loops. first a word @@ -54,7 +55,8 @@ EALIGN (BP_SYM(strncmp), 4, 0) srwi. rTMP, rN, 2 clrlwi rN, rN, 30 addi rFEFE, rFEFE, -0x101 - addi r7F7F, r7F7F, 0x7f7f + addi r7F7F, r7F7F, 0x7f7f + cmplwi cr1, rN, 0 beq L(unaligned) mtctr rTMP /* Power4 wants mtctr 1st in dispatch group. */ @@ -122,16 +124,19 @@ L(tail): addi rSTR1, rSTR1, 4 bne- cr1, L(different) addi rSTR2, rSTR2, 4 + cmplwi cr1, rN, 0 L(unaligned): mtctr rN /* Power4 wants mtctr 1st in dispatch group */ - cmpwi rN,0 - lbz rWORD1, 0(rSTR1) - lbz rWORD2, 0(rSTR2) - bgt L(u1) + bgt cr1, L(uz) L(ux): li rRTN, 0 blr - + .align 4 +L(uz): + lbz rWORD1, 0(rSTR1) + lbz rWORD2, 0(rSTR2) + nop + b L(u1) L(u0): lbzu rWORD2, 1(rSTR2) L(u1): |