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authorEvan Cheng <evan.cheng@apple.com>2007-04-18 00:36:11 +0000
committerEvan Cheng <evan.cheng@apple.com>2007-04-18 00:36:11 +0000
commita5a0c7c909d9376eb2568132ac361c107a746a15 (patch)
treee3421d5587e270c39e8aa4b115079aa096e5c1ff /llvm/lib/CodeGen/PHIElimination.cpp
parent135a077c93ea6664d24323e9781fb5f4b18a9831 (diff)
downloadbcm5719-llvm-a5a0c7c909d9376eb2568132ac361c107a746a15.tar.gz
bcm5719-llvm-a5a0c7c909d9376eb2568132ac361c107a746a15.zip
Increment use count of new virtuals created during PHI elimination.
llvm-svn: 36233
Diffstat (limited to 'llvm/lib/CodeGen/PHIElimination.cpp')
-rw-r--r--llvm/lib/CodeGen/PHIElimination.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/PHIElimination.cpp b/llvm/lib/CodeGen/PHIElimination.cpp
index 734a06fa9d2..513bfdeb256 100644
--- a/llvm/lib/CodeGen/PHIElimination.cpp
+++ b/llvm/lib/CodeGen/PHIElimination.cpp
@@ -138,6 +138,9 @@ void PNE::LowerAtomicPHINode(MachineBasicBlock &MBB,
if (LV) {
MachineInstr *PHICopy = prior(AfterPHIsIt);
+ // Increment use count of the newly created virtual register.
+ LV->getVarInfo(IncomingReg).NumUses++;
+
// Add information to LiveVariables to know that the incoming value is
// killed. Note that because the value is defined in several places (once
// each for each incoming block), the "def" block and instruction fields
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