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authorEvan Cheng <evan.cheng@apple.com>2007-03-18 09:02:31 +0000
committerEvan Cheng <evan.cheng@apple.com>2007-03-18 09:02:31 +0000
commit53824265770e8dfceec551975a9bb0d83eabd5dc (patch)
tree3d086e5d181980fe647c82225fa9cadb3d8bd0ad /llvm/lib/CodeGen/TwoAddressInstructionPass.cpp
parentfd43be8532ae01815943b005840ed02e46448ae7 (diff)
downloadbcm5719-llvm-53824265770e8dfceec551975a9bb0d83eabd5dc.tar.gz
bcm5719-llvm-53824265770e8dfceec551975a9bb0d83eabd5dc.zip
Keep UsedBlocks info accurate.
llvm-svn: 35140
Diffstat (limited to 'llvm/lib/CodeGen/TwoAddressInstructionPass.cpp')
-rw-r--r--llvm/lib/CodeGen/TwoAddressInstructionPass.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/TwoAddressInstructionPass.cpp b/llvm/lib/CodeGen/TwoAddressInstructionPass.cpp
index ba768ba19fa..9209420e3e1 100644
--- a/llvm/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/llvm/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -198,6 +198,9 @@ bool TwoAddressInstructionPass::runOnMachineFunction(MachineFunction &MF) {
varInfo.DefInst = prevMi;
// update live variables for regB
+ LiveVariables::VarInfo& varInfoB = LV.getVarInfo(regB);
+ // regB is used in this BB.
+ varInfoB.UsedBlocks[mbbi->getNumber()] = true;
if (LV.removeVirtualRegisterKilled(regB, mbbi, mi))
LV.addVirtualRegisterKilled(regB, prevMi);
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