From 782ee8cf89bc6dea6c2f5e91b5bd42e2b4c2a725 Mon Sep 17 00:00:00 2001
From: Aaron Councilman <aaronjc4@illinois.edu>
Date: Mon, 18 Apr 2022 20:01:06 -0500
Subject: [PATCH] Fix use-after-free bug in Hetero-C++
---
hpvm/projects/hetero-c++/lib/HPVMExtractTask.cpp | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/hpvm/projects/hetero-c++/lib/HPVMExtractTask.cpp b/hpvm/projects/hetero-c++/lib/HPVMExtractTask.cpp
index 0edd768a3f..095b77dcbd 100644
--- a/hpvm/projects/hetero-c++/lib/HPVMExtractTask.cpp
+++ b/hpvm/projects/hetero-c++/lib/HPVMExtractTask.cpp
@@ -2971,12 +2971,10 @@ CallInst* HPVMProgram::parallelizeLoop(/*Loop* ExtractedLoop, Loop* InnerLoop*/
InductionVar->replaceUsesWithIf(MatchedType, shouldReplaceIV);
+ IntegerType* LimTy = dyn_cast<IntegerType>(InductionVar->getType());
cast<Instruction>(InductionVar)->eraseFromParent();
-
-
- IntegerType* LimTy = dyn_cast<IntegerType>(InductionVar->getType());
assert(LimTy && "Loop bounds must be of integer type");
Value* MatchedLimitType = castIntegerToBitwidth(getNumCall, getNumCall->getNextNode(), LimTy->getBitWidth());
--
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