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C++: Fix conflation in barrier guards#21171

Open

MathiasVP wants to merge 6 commits intogithub:maingithub/codeql:mainfrom

MathiasVP:fix-conflation-in-guardsMathiasVP/ql:fix-conflation-in-guardsCopy head branch name to clipboard

Conversation Commits6 (6)Checks Files changed

Open

C++: Fix conflation in barrier guards#21171
MathiasVP wants to merge 6 commits intogithub:mainfrom
MathiasVP:fix-conflation-in-guards

Commits

Commits on Jan 15, 2026

C++: Modify test to reveal a bug.
MathiasVP
committed
C++: Fix bug and accept test changes.
MathiasVP
committed
C++: Add indirect barrier guard to 'cpp/unbounded-write' to prevent FPs after fixing conflation.
MathiasVP
committed

Commits on Jan 16, 2026

Update cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/DataFlowUtil.qll

MathiasVP
and
Copilot
authored
C++: Add change note.
MathiasVP
committed
C++: Switch another 'DataFlowType' to 'Type'.
MathiasVP
committed

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