[PATCH] D40699: Split IndirectBr critical edges before PGO gen/use passes.

[Hiroshi Yamauchi via Phabricator via llvm-commits]

yamauchi updated this revision to Diff 126079.
yamauchi added a comment.

Detect indirectbr critical non-MST edges in CFGMST and if none, avoid iterating
over the edges in FuncPGOInstrumentation().


https://reviews.llvm.org/D40699

Files:
  include/llvm/Transforms/Utils/BasicBlockUtils.h
  lib/Transforms/Instrumentation/CFGMST.h
  lib/Transforms/Instrumentation/PGOInstrumentation.cpp
  lib/Transforms/Utils/BreakCriticalEdges.cpp
  test/Transforms/PGOProfile/split-indirectbr-critical-edges.ll

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