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| author | Peter Collingbourne <peter@pcc.me.uk> | 2017-01-21 01:57:44 +0000 |
|---|---|---|
| committer | Peter Collingbourne <peter@pcc.me.uk> | 2017-01-21 01:57:44 +0000 |
| commit | b365d921cf1432a76027e8b97f3df1142e3827ca (patch) | |
| tree | 1ffe60a1a709c4137d9936a16b9ef35c95729477 /llvm/lib/Transforms | |
| parent | 06f90ef45cf62d02b011c78e8bddd3e2a84ef579 (diff) | |
| download | bcm5719-llvm-b365d921cf1432a76027e8b97f3df1142e3827ca.tar.gz bcm5719-llvm-b365d921cf1432a76027e8b97f3df1142e3827ca.zip | |
LowerTypeTests: Fix use-after-free. Found by asan/msan.
llvm-svn: 292700
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/IPO/LowerTypeTests.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/IPO/LowerTypeTests.cpp b/llvm/lib/Transforms/IPO/LowerTypeTests.cpp index 9ceb76a8e35..c7b9564c63f 100644 --- a/llvm/lib/Transforms/IPO/LowerTypeTests.cpp +++ b/llvm/lib/Transforms/IPO/LowerTypeTests.cpp @@ -1344,8 +1344,11 @@ bool LowerTypeTestsModule::lower() { return false; if (Action == SummaryAction::Import) { - for (const Use &U : TypeTestFunc->uses()) - importTypeTest(cast<CallInst>(U.getUser())); + for (auto UI = TypeTestFunc->use_begin(), UE = TypeTestFunc->use_end(); + UI != UE;) { + auto *CI = cast<CallInst>((*UI++).getUser()); + importTypeTest(CI); + } return true; } |
