[PATCH] D60831: [DebugInfo at O2][LoopVectorize] pr39024: Vectorized code linenos step through loop even after completion

[Adrian Prantl via Phabricator via llvm-commits]

aprantl added a comment.

This patch broke our internal CI. You can reproduce the issue by downloading https://gist.github.com/adrian-prantl/ba88912878db855ec96534e6510246e6 (this is AArch64 bitcode for a file in the Swift stdlib) and running

  clang "-cc1" "-triple" "arm64-apple-ios7.0.0" "-emit-obj" "-disable-llvm-passes" "-target-abi" "darwinpcs" "-O2" "-x" "ir"  "-o" "-" test.ll
  
  !dbg attachment points at wrong subprogram for function
  !631 = distinct !DISubprogram(name: "__hidden#25349_", scope: !9, file: !9, line: 318, type: !10, scopeLine: 319, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !5)
  %"__ir_hidden#3555_"* (%"__ir_hidden#3418_"*, %"__ir_hidden#3549_"*)* @"\01__hidden#24886_"
    br label %19, !dbg !653
  !653 = !DILocation(line: 258, column: 5, scope: !643)
  !643 = distinct !DISubprogram(name: "__hidden#25389_", scope: !9, file: !9, line: 247, type: !10, scopeLine: 247, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !5)
  !643 = distinct !DISubprogram(name: "__hidden#25389_", scope: !9, file: !9, line: 247, type: !10, scopeLine: 247, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !5)
  fatal error: error in backend: Broken module found, compilation aborted!

Would you mind reverting the patch? Please let me know if you need any help investigating this. My assumption is that the patch somewhere doesn't take the inlinedAt: debug info into account.


Repository:
  rL LLVM

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  https://reviews.llvm.org/D60831/new/

https://reviews.llvm.org/D60831