[all-commits] [llvm/llvm-project] 0529da: [Coverage] Handle invalid end location of an expre...

[Zequan Wu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0529da5b948cf168f65bec65b0559139f4f5a426
      https://github.com/llvm/llvm-project/commit/0529da5b948cf168f65bec65b0559139f4f5a426
  Author: Zequan Wu <zequanwu at google.com>
  Date:   2023-04-13 (Thu, 13 Apr 2023)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/lib/CodeGen/CoverageMappingGen.cpp

  Log Message:
  -----------
  [Coverage] Handle invalid end location of an expression/statement.

Fix a crash when an expression/statement can have valid start location but invalid end location in some situations. For example: https://github.com/llvm/llvm-project/blob/llvmorg-16.0.1/clang/lib/Sema/SemaExprCXX.cpp#L1536

This confuses `CounterCoverageMappingBuilder` when popping a region from region
stack as if the end location is a macro or include location.

Reviewed By: hans, aaron.ballman

Differential Revision: https://reviews.llvm.org/D147073