[PATCH] D57779: [SLP] Add support for throttling.

Sat May 2 03:40:45 PDT 2020

dtemirbulatov updated this revision to Diff 261625.
dtemirbulatov added a comment.

Rebased, reestablished limiter to partially vectorize since I removed it a couple of revisions back. I have SPEC CPU 2006 ~1% improvement in 464.h264ref and ~0.3% 433.milc and 482.sphinx3. Looks like I don't have any performance regressions at C and C++ compilable and runnable CPU2006 tests. With this revision, I fixed regressions compared to my previous change at the following tests: 471.omnetpp, 450.soplex, 482.sphinx3, 433.milc. Also estimated runtime increase for the SLP pass overall for SPECINT is the same as before from ~0.1% to 0.3%.

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D57779/new/

https://reviews.llvm.org/D57779

Files:
  lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Transforms/SLPVectorizer/X86/powof2div.ll
  llvm/test/Transforms/SLPVectorizer/X86/slp-throttle.ll
  test/Transforms/SLPVectorizer/X86/powof2div.ll
  test/Transforms/SLPVectorizer/X86/slp-throttle.ll

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