[all-commits] [llvm/llvm-project] 0aa75f: [SLP] put verifyFunction call behind EXPENSIVE_CHECKS

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  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0aa75fb12faa04e07ba1a6e334605357b6a159c9
      https://github.com/llvm/llvm-project/commit/0aa75fb12faa04e07ba1a6e334605357b6a159c9
  Author: Sanjay Patel <spatel at rotateright.com>
  Date:   2021-01-10 (Sun, 10 Jan 2021)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp

  Log Message:
  -----------
  [SLP] put verifyFunction call behind EXPENSIVE_CHECKS

A severe compile-time slowdown from this call is noted in:
https://llvm.org/PR48689
My naive fix was to put it under LLVM_DEBUG ( 267ff79 ),
but that's not limiting in the way we want.
This is a quick fix (or we could just remove the call completely
and rely on some later pass to discover potentially wrong IR?).
A bigger/better fix would be to improve/limit verifyFunction()
as noted in:
https://llvm.org/PR47712

Differential Revision: https://reviews.llvm.org/D94328