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| author | Nikita Popov <npopov@redhat.com> | 2025-08-08 11:53:28 +0200 |
|---|---|---|
| committer | Nikita Popov <npopov@redhat.com> | 2025-08-08 11:54:09 +0200 |
| commit | 02f3e95a42d0a9bf84ac5535b74e9f96ef22a8ca (patch) | |
| tree | af2ab05015f11d950ca191636a21803e94debe6f /llvm/lib | |
| parent | 69235d269b305e25798210d293969efb45ee3f1c (diff) | |
| download | llvm-02f3e95a42d0a9bf84ac5535b74e9f96ef22a8ca.zip llvm-02f3e95a42d0a9bf84ac5535b74e9f96ef22a8ca.tar.gz llvm-02f3e95a42d0a9bf84ac5535b74e9f96ef22a8ca.tar.bz2 | |
[AutoUpgrade] Fix use after free
Determine the intrinsic ID before the name is freed during renaming.
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/IR/AutoUpgrade.cpp | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/llvm/lib/IR/AutoUpgrade.cpp b/llvm/lib/IR/AutoUpgrade.cpp index 35f00ae..b91fd70 100644 --- a/llvm/lib/IR/AutoUpgrade.cpp +++ b/llvm/lib/IR/AutoUpgrade.cpp @@ -1314,12 +1314,12 @@ static bool upgradeIntrinsicFunction1(Function *F, Function *&NewFn, if ((Name.starts_with("lifetime.start") || Name.starts_with("lifetime.end")) && F->arg_size() == 2) { + Intrinsic::ID IID = Name.starts_with("lifetime.start") + ? Intrinsic::lifetime_start + : Intrinsic::lifetime_end; rename(F); - NewFn = Intrinsic::getOrInsertDeclaration( - F->getParent(), - Name.starts_with("lifetime.start") ? Intrinsic::lifetime_start - : Intrinsic::lifetime_end, - F->getArg(0)->getType()); + NewFn = Intrinsic::getOrInsertDeclaration(F->getParent(), IID, + F->getArg(0)->getType()); return true; } break; |