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Revert r361811: 'Re-commit r357452 (take 2): "SimplifyCFG…

Description

Revert r361811: 'Re-commit r357452 (take 2): "SimplifyCFG SinkCommonCodeFromPredecessors ...'

We have observed some failures with internal builds with this revision.

  • Performance regressions:
    • llvm's SingleSource/Misc evalloop shows performance regressions (although these may be red herrings).
    • Benchmarks for Abseil's SwissTable.
  • Correctness:
    • Failures for particular libicu tests when building the Google AppEngine SDK (for PHP).

hwennborg has already been notified, and is aware of reproducer failures.

Details

Committed
dljJun 12 2019, 7:04 PM
Parents
rL363219: Make GCC in C++03 Unsupported
Branches
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Tags
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