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gerrit-public.fairphone.software / toolchain / llvm-project / e58cd9cbc6f5039a45da77713eb68977f01c9f31
commite58cd9cbc6f5039a45da77713eb68977f01c9f31[log] [tgz]
authorCraig Topper <craig.topper@intel.com>Fri Dec 21 21:42:43 2018 +0000
committerCraig Topper <craig.topper@intel.com>Fri Dec 21 21:42:43 2018 +0000
tree347412a7bcb652a3696553c12a7c8285bb579da0
parentc6027e20d4b6756833e1692baeec78c9a5ff4e5e [diff]
[X86] Add isel patterns to match BMI/TBMI instructions when lowering has turned the root nodes into one of the flag producing binops.

This fixes the patterns that have or/and as a root. 'and' is handled differently since thy usually have a CMP wrapped around them.

I had to look for uses of the CF flag because all these nodes have non-standard CF flag behavior. A real or/xor would always clear CF. In practice we shouldn't be using the CF flag from these nodes as far as I know.

Differential Revision: https://reviews.llvm.org/D55813

llvm-svn: 349962
4 files changed
tree: 347412a7bcb652a3696553c12a7c8285bb579da0
  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. 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.