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Avoid a use after free.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241345 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2015-07-03 12:20:34 +00:00
parent abdd9e7330
commit 21afba1004
1 changed files with 4 additions and 1 deletions
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5
lib/Bitcode/Reader/BitcodeReader.cpp
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@ -4459,7 +4459,10 @@ std::error_code BitcodeReader::materialize(GlobalValue *GV) {
// Upgrade any old intrinsic calls in the function.
for (auto &I : UpgradedIntrinsics) {
if (I.first != I.second) {
for (auto *U : I.first->users()) {
for (auto UI = I.first->user_begin(), UE = I.first->user_end();
UI != UE;) {
User *U = *UI;
++UI;
if (CallInst *CI = dyn_cast<CallInst>(U))
UpgradeIntrinsicCall(CI, I.second);
}