[Clang] Fix a use-after-move issue in SubsumptionChecker #164781
Merged
+2
−1
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Spotted by Shafik
llvmbot
added
clang
Member
|
@llvm/pr-subscribers-clang Author: Younan Zhang (zyn0217) ChangesSpotted by Shafik in #161671 (comment) Full diff: https://github.com/llvm/llvm-project/pull/164781.diff 1 Files Affected:
diff --git a/clang/lib/Sema/SemaConcept.cpp b/clang/lib/Sema/SemaConcept.cpp
index f77fca2a69e00..70149464b3a99 100644
--- a/clang/lib/Sema/SemaConcept.cpp
+++ b/clang/lib/Sema/SemaConcept.cpp
@@ -2669,8 +2669,9 @@ FormulaType SubsumptionChecker::Normalize(const NormalizedConstraint &NC) {
});
if (Compound.getCompoundKind() == FormulaType::Kind) {
+ unsigned SizeLeft = Left.size();
Res = std::move(Left);
- Res.reserve(Left.size() + Right.size());
+ Res.reserve(SizeLeft + Right.size());
std::for_each(std::make_move_iterator(Right.begin()),
std::make_move_iterator(Right.end()), Add);
return Res;
|
mikolaj-pirog
pushed a commit
to mikolaj-pirog/llvm-project
that referenced
this pull request
Oct 23, 2025
Spotted by Shafik.
zwuis
added
the
skip-precommit-approval
dvbuka
pushed a commit
to dvbuka/llvm-project
that referenced
this pull request
Oct 27, 2025
Spotted by Shafik.
Lukacma
pushed a commit
to Lukacma/llvm-project
that referenced
this pull request
Oct 29, 2025
Spotted by Shafik.
aokblast
pushed a commit
to aokblast/llvm-project
that referenced
this pull request
Oct 30, 2025
Spotted by Shafik.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
4 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Spotted by Shafik in #161671 (comment)