[all-commits] [llvm/llvm-project] e511c4: Temporarily Revert:

[Eric Christopher via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: e511c4b0dff1692c267addf17dce3cebe8f97faa
      https://github.com/llvm/llvm-project/commit/e511c4b0dff1692c267addf17dce3cebe8f97faa
  Author: Eric Christopher <echristo at gmail.com>
  Date:   2019-11-06 (Wed, 06 Nov 2019)

  Changed paths:
    M llvm/include/llvm/Transforms/Vectorize/SLPVectorizer.h
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    M llvm/test/Transforms/SLPVectorizer/X86/arith-add-ssat.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-add-usat.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-add.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-fix.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-mul.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-sub-ssat.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-sub-usat.ll
    M llvm/test/Transforms/SLPVectorizer/X86/arith-sub.ll
    M llvm/test/Transforms/SLPVectorizer/X86/bitreverse.ll
    M llvm/test/Transforms/SLPVectorizer/X86/ctlz.ll
    M llvm/test/Transforms/SLPVectorizer/X86/ctpop.ll
    M llvm/test/Transforms/SLPVectorizer/X86/cttz.ll
    M llvm/test/Transforms/SLPVectorizer/X86/different-vec-widths.ll
    R llvm/test/Transforms/SLPVectorizer/X86/jumbled_store_crash.ll
    M llvm/test/Transforms/SLPVectorizer/X86/pr35497.ll
    M llvm/test/Transforms/SLPVectorizer/X86/shift-ashr.ll
    M llvm/test/Transforms/SLPVectorizer/X86/shift-lshr.ll
    M llvm/test/Transforms/SLPVectorizer/X86/shift-shl.ll
    M llvm/test/Transforms/SLPVectorizer/X86/store-jumbled.ll
    M llvm/test/Transforms/SLPVectorizer/X86/stores_vectorize.ll

  Log Message:
  -----------
  Temporarily Revert:

 "[SLP] Generalization of stores vectorization."
 "[SLP] Fix -Wunused-variable. NFC"
 "[SLP] Vectorize jumbled stores."

As they're causing significant (10-30x) compile time regressions on
vectorizable code.

The primary cause of the compile-time regression is f228b5371647f471853c5fb3e6719823a42fe451.

This reverts commits:

f228b5371647f471853c5fb3e6719823a42fe451
5503455ccb3f5fcedced158332c016c8d3a7fa81
21d498c9c0f32dcab5bc89ac593aa813b533b43a