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gerrit-public.fairphone.software / toolchain / llvm-project / 6c8f4ada360d8d289dbba7c80eb8a1fae991d7d0
commit6c8f4ada360d8d289dbba7c80eb8a1fae991d7d0[log] [tgz]
authorSimon Pilgrim <llvm-dev@redking.me.uk>Fri Apr 12 14:22:57 2019 +0000
committerSimon Pilgrim <llvm-dev@redking.me.uk>Fri Apr 12 14:22:57 2019 +0000
tree17c76318831db3bc81e2e00602fff698336ea0ca
parent1e39fc1faa5d8e27877eff45b2b9839c94e5d12e [diff]
[X86][SSE] Recognise vXi1 boolean anyof/allof reduction patterns

Currently combineHorizontalPredicateResult only handles anyof/allof reduction patterns of legal types, which can be tricky to match as type legalization of bools can introduce bitcasts/truncs/extensions.

This patch extends combineHorizontalPredicateResult to recognise vXi1 bool reductions as well and uses the existing combineBitcastvxi1 helper to create the MOVMSK necessary to then compare the signmask result.

This ensures the accuracy of the reduction costs added in D60403 which assume the MOVMSK generation.

Differential Revision: https://reviews.llvm.org/D60610

llvm-svn: 358286
3 files changed
tree: 17c76318831db3bc81e2e00602fff698336ea0ca
  1. clang/
  2. clang-tools-extra/
  3. compiler-rt/
  4. debuginfo-tests/
  5. libclc/
  6. libcxx/
  7. libcxxabi/
  8. libunwind/
  9. lld/
  10. lldb/
  11. llgo/
  12. llvm/
  13. openmp/
  14. parallel-libs/
  15. polly/
  16. pstl/
  17. .arcconfig
  18. .clang-format
  19. .clang-tidy
  20. .gitignore
  21. README.md
README.md

The LLVM Compiler Infrastructure

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.