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Minor update.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25263 91177308-0d34-0410-b5e6-96231b3b80d8
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Evan Cheng 2006-01-13 01:20:42 +00:00
parent fcf39d4589
commit e08c270623
1 changed files with 9 additions and 0 deletions
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9
lib/Target/X86/README.txt
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@ -112,3 +112,12 @@ FP_TO_SINT when the source operand is already in memory.
//===---------------------------------------------------------------------===// //===---------------------------------------------------------------------===//
Check if load folding would add a cycle in the dag. Check if load folding would add a cycle in the dag.
//===---------------------------------------------------------------------===//
Model X86 EFLAGS as a real register to avoid redudant cmp / test. e.g.
cmpl $1, %eax
setg %al
testb %al, %al # unnecessary
jne .BB7