diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/power4/memcmp.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/power4/memcmp.S | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/sysdeps/powerpc/powerpc64/power4/memcmp.S b/sysdeps/powerpc/powerpc64/power4/memcmp.S index c1a77c64b0..e5319f101f 100644 --- a/sysdeps/powerpc/powerpc64/power4/memcmp.S +++ b/sysdeps/powerpc/powerpc64/power4/memcmp.S @@ -1,5 +1,5 @@ /* Optimized memcmp implementation for PowerPC64. - Copyright (C) 2003-2016 Free Software Foundation, Inc. + Copyright (C) 2003-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -22,8 +22,12 @@ const char *s2 [r4], size_t size [r5]) */ +#ifndef MEMCMP +# define MEMCMP memcmp +#endif + .machine power4 -EALIGN (memcmp, 4, 0) +ENTRY_TOCLESS (MEMCMP, 4) CALL_MCOUNT 3 #define rRTN r3 @@ -52,8 +56,8 @@ EALIGN (memcmp, 4, 0) byte loop. */ blt cr1, L(bytealigned) std rWORD8, -8(r1) - cfi_offset(rWORD8, -8) std rWORD7, -16(r1) + cfi_offset(rWORD8, -8) cfi_offset(rWORD7, -16) bne L(unaligned) /* At this point we know both strings have the same alignment and the @@ -728,18 +732,18 @@ L(unaligned): the actual start of rSTR2. */ clrrdi rSTR2, rSTR2, 3 std rWORD2_SHIFT, -48(r1) - cfi_offset(rWORD2_SHIFT, -48) /* Compute the left/right shift counts for the unaligned rSTR2, compensating for the logical (DW aligned) start of rSTR1. */ clrldi rSHL, rWORD8_SHIFT, 61 clrrdi rSTR1, rSTR1, 3 std rWORD4_SHIFT, -56(r1) - cfi_offset(rWORD4_SHIFT, -56) sldi rSHL, rSHL, 3 cmpld cr5, rWORD8_SHIFT, rSTR2 add rN, rN, r12 sldi rWORD6, r12, 3 std rWORD6_SHIFT, -64(r1) + cfi_offset(rWORD2_SHIFT, -48) + cfi_offset(rWORD4_SHIFT, -56) cfi_offset(rWORD6_SHIFT, -64) subfic rSHR, rSHL, 64 srdi r0, rN, 5 /* Divide by 32 */ @@ -833,15 +837,15 @@ L(duPs4): .align 4 L(DWunaligned): std rWORD8_SHIFT, -40(r1) - cfi_offset(rWORD8_SHIFT, -40) clrrdi rSTR2, rSTR2, 3 std rWORD2_SHIFT, -48(r1) - cfi_offset(rWORD2_SHIFT, -48) srdi r0, rN, 5 /* Divide by 32 */ std rWORD4_SHIFT, -56(r1) - cfi_offset(rWORD4_SHIFT, -56) andi. r12, rN, 24 /* Get the DW remainder */ std rWORD6_SHIFT, -64(r1) + cfi_offset(rWORD8_SHIFT, -40) + cfi_offset(rWORD2_SHIFT, -48) + cfi_offset(rWORD4_SHIFT, -56) cfi_offset(rWORD6_SHIFT, -64) sldi rSHL, rSHL, 3 #ifdef __LITTLE_ENDIAN__ @@ -1360,6 +1364,6 @@ L(duzeroLength): li rRTN, 0 blr -END (memcmp) +END (MEMCMP) libc_hidden_builtin_def (memcmp) weak_alias (memcmp, bcmp) |