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-rw-r--r--sysdeps/powerpc/powerpc32/405/strcmp.S134
1 files changed, 0 insertions, 134 deletions
diff --git a/sysdeps/powerpc/powerpc32/405/strcmp.S b/sysdeps/powerpc/powerpc32/405/strcmp.S
deleted file mode 100644
index 42e04e9552..0000000000
--- a/sysdeps/powerpc/powerpc32/405/strcmp.S
+++ /dev/null
@@ -1,134 +0,0 @@
-/* Optimized strcmp implementation for PowerPC476.
- Copyright (C) 2010-2017 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
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library. If not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <sysdep.h>
-
-/* strcmp
-
- Register Use
- r0:temp return equality
- r3:source1 address, return equality
- r4:source2 address
-
- Implementation description
- Check 2 words from src1 and src2. If unequal jump to end and
- return src1 > src2 or src1 < src2.
- If null check bytes before null and then jump to end and
- return src1 > src2, src1 < src2 or src1 = src2.
- If src1 = src2 and no null, repeat. */
-
-EALIGN (strcmp,5,0)
- neg r7,r3
- clrlwi r7,r7,20
- neg r8,r4
- clrlwi r8,r8,20
- srwi. r7,r7,5
- beq L(byte_loop)
- srwi. r8,r8,5
- beq L(byte_loop)
- cmplw r7,r8
- mtctr r7
- ble L(big_loop)
- mtctr r8
-
-L(big_loop):
- lwz r5,0(r3)
- lwz r6,4(r3)
- lwz r8,0(r4)
- lwz r9,4(r4)
- dlmzb. r12,r5,r6
- bne L(end_check)
- cmplw r5,r8
- bne L(st1)
- cmplw r6,r9
- bne L(st1)
- lwz r5,8(r3)
- lwz r6,12(r3)
- lwz r8,8(r4)
- lwz r9,12(r4)
- dlmzb. r12,r5,r6
- bne L(end_check)
- cmplw r5,r8
- bne L(st1)
- cmplw r6,r9
- bne L(st1)
- lwz r5,16(r3)
- lwz r6,20(r3)
- lwz r8,16(r4)
- lwz r9,20(r4)
- dlmzb. r12,r5,r6
- bne L(end_check)
- cmplw r5,r8
- bne L(st1)
- cmplw r6,r9
- bne L(st1)
- lwz r5,24(r3)
- lwz r6,28(r3)
- addi r3,r3,0x20
- lwz r8,24(r4)
- lwz r9,28(r4)
- addi r4,r4,0x20
- dlmzb. r12,r5,r6
- bne L(end_check)
- cmplw r5,r8
- bne L(st1)
- cmplw r6,r9
- bne L(st1)
- bdnz L(big_loop)
- b L(byte_loop)
-
-L(end_check):
- subfic r12,r12,4
- blt L(end_check2)
- rlwinm r12,r12,3,0,31
- srw r5,r5,r12
- srw r8,r8,r12
- cmplw r5,r8
- bne L(st1)
- b L(end_strcmp)
-
-L(end_check2):
- addi r12,r12,4
- cmplw r5,r8
- rlwinm r12,r12,3,0,31
- bne L(st1)
- srw r6,r6,r12
- srw r9,r9,r12
- cmplw r6,r9
- bne L(st1)
-
-L(end_strcmp):
- addi r3,r0,0
- blr
-
-L(st1):
- mfcr r3
- blr
-
-L(byte_loop):
- lbz r5,0(r3)
- addi r3,r3,1
- lbz r6,0(r4)
- addi r4,r4,1
- cmplw r5,r6
- bne L(st1)
- cmpwi r5,0
- beq L(end_strcmp)
- b L(byte_loop)
-END (strcmp)
-libc_hidden_builtin_def (strcmp)