commit	776a81a483da73b52f8d73ce441b0f03dbf5411b	[log] [tgz]
author	Jonas Paulsson <paulsson@linux.vnet.ibm.com>	Mon Jan 15 15:41:26 2018 +0000
committer	Jonas Paulsson <paulsson@linux.vnet.ibm.com>	Mon Jan 15 15:41:26 2018 +0000
tree	741f6d0c18061180376d244be6a0d01830cfab21
parent	264a683ec89b676fabce9ebdce671a86859caa73 [diff]

[SystemZ]  Check for legality before doing LOAD AND TEST transformations.

Since a load and test instruction treat its operands as signed, it can only
replace a logical compare for EQ/NE uses.

Review: Ulrich Weigand
https://bugs.llvm.org/show_bug.cgi?id=35662

llvm-svn: 322488

llvm/lib/Target/SystemZ/SystemZElimCompare.cpp[diff]
llvm/test/CodeGen/SystemZ/load-and-test.mir[Added - diff]

2 files changed

tree: 741f6d0c18061180376d244be6a0d01830cfab21

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.