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MFp4: Reduce code size by 26 bytes by only aligning the jump targets that

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are at the top of loops.
This commit is contained in:
Tim J. Robbins 2003-03-12 06:46:16 +00:00
parent 07648c8bb8
commit 1609edca75
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=112132
1 changed files with 1 additions and 10 deletions
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11
lib/libc/i386/string/wmemchr.S
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@ -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