If PrototypeValue is erased in the middle of using the SSAUpdator

then the SSAUpdator may access freed memory.  Instead, simply pass
in the type and name explicitly, which is all that was used anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112699 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/Transforms/Scalar/JumpThreading.cpp b/lib/Transforms/Scalar/JumpThreading.cpp
index abf98866ae..5f350676da 100644
--- a/lib/Transforms/Scalar/JumpThreading.cpp
+++ b/lib/Transforms/Scalar/JumpThreading.cpp
@@ -1526,7 +1526,7 @@ bool JumpThreading::ThreadEdge(BasicBlock *BB,
     // We found a use of I outside of BB.  Rename all uses of I that are outside
     // its block to be uses of the appropriate PHI node etc.  See ValuesInBlocks
     // with the two values we know.
-    SSAUpdate.Initialize(I);
+    SSAUpdate.Initialize(I->getType(), I->getName());
     SSAUpdate.AddAvailableValue(BB, I);
     SSAUpdate.AddAvailableValue(NewBB, ValueMapping[I]);
     
@@ -1681,7 +1681,7 @@ bool JumpThreading::DuplicateCondBranchOnPHIIntoPred(BasicBlock *BB,
     // We found a use of I outside of BB.  Rename all uses of I that are outside
     // its block to be uses of the appropriate PHI node etc.  See ValuesInBlocks
     // with the two values we know.
-    SSAUpdate.Initialize(I);
+    SSAUpdate.Initialize(I->getType(), I->getName());
     SSAUpdate.AddAvailableValue(BB, I);
     SSAUpdate.AddAvailableValue(PredBB, ValueMapping[I]);