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

[Dinar Temirbulatov via Phabricator via llvm-commits]

dtemirbulatov updated this revision to Diff 189965.
dtemirbulatov added a comment.

Add cost calculation for in vectorizable tree operation to be extracted for the canceled tree elements use. Fix performance regression on Phoronix's c-ray-1.2.0 test-suite by avoiding to vectorize just one seed instruction. Spec 2006 numbers are unchanged with several instances of new vectorizations but not hot enough to change the numbers. Also, I noticed a good vectorizations example with Phoronix's encode-mp3-1.7.3 of two FFT kernels with ~8% faster for fft_short kernel and ~3% faster for fft_long on Intel(R) Core(TM) i7-6700HQ.


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

https://reviews.llvm.org/D57779

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

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D57779.189965.patch
Type: text/x-patch
Size: 43994 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20190309/1fa31004/attachment-0001.bin>