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-rw-r--r--arch/m32r/lib/strlen.S118
1 files changed, 0 insertions, 118 deletions
diff --git a/arch/m32r/lib/strlen.S b/arch/m32r/lib/strlen.S
deleted file mode 100644
index 41c77e387593..000000000000
--- a/arch/m32r/lib/strlen.S
+++ /dev/null
@@ -1,118 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * linux/arch/m32r/strlen.S -- strlen code.
- *
- * Copyright (C) 2001 Hirokazu Takata
- *
- * size_t strlen(const char *s);
- *
- */
-
-#include <linux/linkage.h>
-#include <asm/assembler.h>
-
-#ifdef CONFIG_ISA_DUAL_ISSUE
-
- .text
-ENTRY(strlen)
- mv r6, r0 || ldi r2, #0
- and3 r0, r0, #3
- bnez r0, strlen_byte
-;
-strlen_word:
- ld r0, @r6+
-;
- seth r5, #high(0x01010101)
- or3 r5, r5, #low(0x01010101)
- sll3 r7, r5, #7
-strlen_word_loop:
- ld r1, @r6+ || not r4, r0
- sub r0, r5 || and r4, r7
- and r4, r0
- bnez r4, strlen_last_bytes
- ld r0, @r6+ || not r4, r1
- sub r1, r5 || and r4, r7
- and r4, r1 || addi r2, #4
- bnez r4, strlen_last_bytes
- addi r2, #4 || bra.s strlen_word_loop
-
- ; NOTE: If a null char. exists, return 0.
- ; if ((x - 0x01010101) & ~x & 0x80808080)
- ; return 0;
-;
-strlen_byte:
- ldb r1, @r6 || addi r6, #1
- beqz r1, strlen_exit
- addi r2, #1 || bra.s strlen_byte
-;
-strlen_last_bytes:
- ldi r0, #4 || addi r6, #-8
-;
-strlen_byte_loop:
- ldb r1, @r6 || addi r6, #1
- addi r0, #-1 || cmpz r1
- bc.s strlen_exit || cmpz r0
- addi r2, #1 || bnc.s strlen_byte_loop
-;
-strlen_exit:
- mv r0, r2 || jmp r14
-
-#else /* not CONFIG_ISA_DUAL_ISSUE */
-
- .text
-ENTRY(strlen)
- mv r6, r0
- ldi r2, #0
- and3 r0, r0, #3
- bnez r0, strlen_byte
-;
-strlen_word:
- ld r0, @r6+
-;
- seth r5, #high(0x01010101)
- or3 r5, r5, #low(0x01010101)
- sll3 r7, r5, #7
-strlen_word_loop:
- ld r1, @r6+
- not r4, r0 ; NOTE: If a null char. exists, return 0.
- sub r0, r5 ; if ((x - 0x01010101) & ~x & 0x80808080)
- and r4, r7 ; return 0;
- and r4, r0
- bnez r4, strlen_last_bytes
- addi r2, #4
-;
- ld r0, @r6+
- not r4, r1 ; NOTE: If a null char. exists, return 0.
- sub r1, r5 ; if ((x - 0x01010101) & ~x & 0x80808080)
- and r4, r7 ; return 0;
- and r4, r1
- bnez r4, strlen_last_bytes
- addi r2, #4
- bra strlen_word_loop
-;
-strlen_byte:
- ldb r1, @r6
- addi r6, #1
- beqz r1, strlen_exit
- addi r2, #1
- bra strlen_byte
-;
-strlen_last_bytes:
- ldi r0, #4
- addi r6, #-8
-;
-strlen_byte_loop:
- ldb r1, @r6
- addi r6, #1
- addi r0, #-1
- beqz r1, strlen_exit
- addi r2, #1
- bnez r0, strlen_byte_loop
-;
-strlen_exit:
- mv r0, r2
- jmp r14
-
-#endif /* not CONFIG_ISA_DUAL_ISSUE */
-
- .end