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| author | Tim J. Robbins <tjr@FreeBSD.org> | 2003-03-12 06:46:16 +0000 |
|---|---|---|
| committer | Tim J. Robbins <tjr@FreeBSD.org> | 2003-03-12 06:46:16 +0000 |
| commit | 1609edca75bced597fdb4da9fb5a2817a72385db (patch) | |
| tree | 35415990cb65a0b3a3844e5bd8cebce156aca402 | |
| parent | 07648c8bb83d821bd604f4b04479792b3ce31c46 (diff) | |
| download | src-1609edca75bced597fdb4da9fb5a2817a72385db.tar.gz src-1609edca75bced597fdb4da9fb5a2817a72385db.zip | |
MFp4: Reduce code size by 26 bytes by only aligning the jump targets that
are at the top of loops.
Notes
Notes:
svn path=/head/; revision=112132
| -rw-r--r-- | lib/libc/i386/string/wmemchr.S | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/lib/libc/i386/string/wmemchr.S b/lib/libc/i386/string/wmemchr.S index 4163735fc766..a4ef08191156 100644 --- a/lib/libc/i386/string/wmemchr.S +++ b/lib/libc/i386/string/wmemchr.S @@ -68,46 +68,37 @@ bigloop:cmpl %eax,(%edi) decl %ecx jnz bigloop jmp small -.p2align 2,0x90 found: movl %edi,%eax popl %ebx popl %edi ret -.p2align 2,0x90 found4: leal 4(%edi),%edi jmp found -.p2align 2,0x90 found8: leal 8(%edi),%edi jmp found -.p2align 2,0x90 found12:leal 12(%edi),%edi jmp found -.p2align 2,0x90 found16:leal 16(%edi),%edi jmp found -.p2align 2,0x90 found20:leal 20(%edi),%edi jmp found -.p2align 2,0x90 found24:leal 24(%edi),%edi jmp found -.p2align 2,0x90 found28:leal 28(%edi),%edi jmp found /* * Search remaining part of string. */ -.p2align 2,0x90 small: movl %ebx,%ecx andl $7,%ecx jz no +.p2align 2,0x90 smltop: cmpl %eax,(%edi) je found leal 4(%edi),%edi decl %ecx jnz smltop -.p2align 2,0x90 no: xorl %eax,%eax popl %ebx popl %edi |