commit	01e2e79abf0a69d4e041a87463ccd0afc27b603a	[log] [tgz]
author	Nemanja Ivanovic <nemanja.i.ibm@gmail.com>	Wed May 02 23:55:23 2018 +0000
committer	Nemanja Ivanovic <nemanja.i.ibm@gmail.com>	Wed May 02 23:55:23 2018 +0000
tree	65779c2b4913591b6424a1ae4f7a071353b23a22
parent	1f6277eb4d905ac46df120e1a059fc67790ca62c [diff]

[PowerPC] Implement isMaskAndCmp0FoldingBeneficial

Sinking the and closer to a compare against zero is beneficial on PPC as it
allows us to emit record-form instructions. In the future, we may expand this
to a larger set of operations that feed compares against zero since PPC has
lots of record-form instructions.

Differential revision: https://reviews.llvm.org/D46060

llvm-svn: 331416

llvm/lib/Target/PowerPC/PPCISelLowering.cpp[diff]
llvm/lib/Target/PowerPC/PPCISelLowering.h[diff]
llvm/test/CodeGen/PowerPC/test-and-cmp-folding.ll[Added - diff]

3 files changed

tree: 65779c2b4913591b6424a1ae4f7a071353b23a22

clang/
clang-tools-extra/
compiler-rt/
debuginfo-tests/
libclc/
libcxx/
libcxxabi/
libunwind/
lld/
lldb/
llgo/
llvm/
openmp/
parallel-libs/
polly/
README.md

README.md

Low Level Virtual Machine (LLVM)

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