diff options
Diffstat (limited to 'arch/arc/lib/memcmp.S')
| -rw-r--r-- | arch/arc/lib/memcmp.S | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/arch/arc/lib/memcmp.S b/arch/arc/lib/memcmp.S deleted file mode 100644 index 87bccab51d..0000000000 --- a/arch/arc/lib/memcmp.S +++ /dev/null @@ -1,123 +0,0 @@ -/* - * Copyright (C) 2004, 2007-2010, 2011-2014 Synopsys, Inc. All rights reserved. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#ifdef __LITTLE_ENDIAN__ -#define WORD2 r2 -#define SHIFT r3 -#else /* __BIG_ENDIAN__ */ -#define WORD2 r3 -#define SHIFT r2 -#endif /* _ENDIAN__ */ - -.global memcmp -.align 4 -memcmp: - or %r12, %r0, %r1 - asl_s %r12, %r12, 30 - sub %r3, %r2, 1 - brls %r2, %r12, .Lbytewise - ld %r4, [%r0, 0] - ld %r5, [%r1, 0] - lsr.f %lp_count, %r3, 3 - lpne .Loop_end - ld_s WORD2, [%r0, 4] - ld_s %r12, [%r1, 4] - brne %r4, %r5, .Leven - ld.a %r4, [%r0, 8] - ld.a %r5, [%r1, 8] - brne WORD2, %r12, .Lodd - nop -.Loop_end: - asl_s SHIFT, SHIFT, 3 - bhs_s .Last_cmp - brne %r4, %r5, .Leven - ld %r4, [%r0, 4] - ld %r5, [%r1, 4] -#ifdef __LITTLE_ENDIAN__ - nop_s - /* one more load latency cycle */ -.Last_cmp: - xor %r0, %r4, %r5 - bset %r0, %r0, SHIFT - sub_s %r1, %r0, 1 - bic_s %r1, %r1, %r0 - norm %r1, %r1 - b.d .Leven_cmp - and %r1, %r1, 24 -.Leven: - xor %r0, %r4, %r5 - sub_s %r1, %r0, 1 - bic_s %r1, %r1, %r0 - norm %r1, %r1 - /* slow track insn */ - and %r1, %r1, 24 -.Leven_cmp: - asl %r2, %r4, %r1 - asl %r12, %r5, %r1 - lsr_s %r2, %r2, 1 - lsr_s %r12, %r12, 1 - j_s.d [%blink] - sub %r0, %r2, %r12 - .balign 4 -.Lodd: - xor %r0, WORD2, %r12 - sub_s %r1, %r0, 1 - bic_s %r1, %r1, %r0 - norm %r1, %r1 - /* slow track insn */ - and %r1, %r1, 24 - asl_s %r2, %r2, %r1 - asl_s %r12, %r12, %r1 - lsr_s %r2, %r2, 1 - lsr_s %r12, %r12, 1 - j_s.d [%blink] - sub %r0, %r2, %r12 -#else /* __BIG_ENDIAN__ */ -.Last_cmp: - neg_s SHIFT, SHIFT - lsr %r4, %r4, SHIFT - lsr %r5, %r5, SHIFT - /* slow track insn */ -.Leven: - sub.f %r0, %r4, %r5 - mov.ne %r0, 1 - j_s.d [%blink] - bset.cs %r0, %r0, 31 -.Lodd: - cmp_s WORD2, %r12 - - mov_s %r0, 1 - j_s.d [%blink] - bset.cs %r0, %r0, 31 -#endif /* _ENDIAN__ */ - .balign 4 -.Lbytewise: - breq %r2, 0, .Lnil - ldb %r4, [%r0, 0] - ldb %r5, [%r1, 0] - lsr.f %lp_count, %r3 - lpne .Lbyte_end - ldb_s %r3, [%r0, 1] - ldb %r12, [%r1, 1] - brne %r4, %r5, .Lbyte_even - ldb.a %r4, [%r0, 2] - ldb.a %r5, [%r1, 2] - brne %r3, %r12, .Lbyte_odd - nop -.Lbyte_end: - bcc .Lbyte_even - brne %r4, %r5, .Lbyte_even - ldb_s %r3, [%r0, 1] - ldb_s %r12, [%r1, 1] -.Lbyte_odd: - j_s.d [%blink] - sub %r0, %r3, %r12 -.Lbyte_even: - j_s.d [%blink] - sub %r0, %r4, %r5 -.Lnil: - j_s.d [%blink] - mov %r0, 0 |