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turning these into 'adds' would require extra copies 

llvm-svn: 25858
This commit is contained in:
Chris Lattner 2006-01-31 22:59:46 +00:00
parent 72d5c256c9
commit 64387c3e9c
1 changed files with 5 additions and 7 deletions
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12
llvm/lib/Target/X86/README.txt
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@ -247,21 +247,19 @@ llvm-as < setuge.ll | llc -march=x86 -mcpu=yonah -enable-x86-sse
_cmp:
subl $4, %esp
1) leal 20(%esp), %eax
leal 20(%esp), %eax
movss 12(%esp), %xmm0
1) leal 16(%esp), %ecx
leal 16(%esp), %ecx
ucomiss 8(%esp), %xmm0
cmovb %ecx, %eax
2) movss (%eax), %xmm0
2) movss %xmm0, (%esp)
1) movss (%eax), %xmm0
1) movss %xmm0, (%esp)
flds (%esp)
addl $4, %esp
ret
1) These LEA's should be adds. This is tricky because they are FrameIndex's
before prolog-epilog rewriting.
2) We shouldn't load into XMM regs only to store it back.
1) We shouldn't load into XMM regs only to store it back.
//===---------------------------------------------------------------------===//