[all-commits] [llvm/llvm-project] 896bce: [MC/DC][Coverage] Add assertions into emitSourceRe...

[NAKAMURA Takumi via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 896bceb9537ecd906668fdd2bcb0310b32174917
      https://github.com/llvm/llvm-project/commit/896bceb9537ecd906668fdd2bcb0310b32174917
  Author: NAKAMURA Takumi <geek4civic at gmail.com>
  Date:   2024-05-23 (Thu, 23 May 2024)

  Changed paths:
    M clang/lib/CodeGen/CoverageMappingGen.cpp
    A clang/test/CoverageMapping/mcdc-scratch-space.c

  Log Message:
  -----------
  [MC/DC][Coverage] Add assertions into emitSourceRegions() (#89572)

`emitSourceRegions()` has bugs to emit malformed MC/DC coverage
mappings. They were detected in `llvm-cov` as the crash.

Detect inconsistencies earlier in `clang` with assertions.

* mcdc-scratch-space.c covers #87000.



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