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Fix PR6847. RegScavenger should ignore DebugValues.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101392 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2010-04-15 20:28:39 +00:00
parent 8538f0496a
commit 5ef9d76f6f
2 changed files with 29 additions and 0 deletions
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3
lib/CodeGen/RegisterScavenging.cpp
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@ -136,6 +136,9 @@ void RegScavenger::forward() {
ScavengeRestore = NULL;
}
if (MI->isDebugValue())
return;
// Find out which registers are early clobbered, killed, defined, and marked
// def-dead in this instruction.
BitVector EarlyClobberRegs(NumPhysRegs);