[PATCH] D135606: llvm-reduce: Improve delta pass flag handling

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: regehr, aeubanks, lebedev.ri, rogfer01, fhahn.
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Verify all the requested passes exist before trying to run any.
For long reductions, it was really annoying for it to get halfway through
and then I come back later to an incomplete reduction.

      

Also add a new skip-delta-passes flag. Most of the time I want to opt out
of specific reductions, rather than run a select few.


https://reviews.llvm.org/D135606

Files:
  llvm/test/tools/llvm-reduce/skip-delta-passes.ll
  llvm/tools/llvm-reduce/DeltaManager.cpp

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