commit	6d6eab66e0f76c8bb908492dcc863308b66f7771	[log] [tgz]
author	Sanjay Patel <spatel@rotateright.com>	Thu Jul 26 19:22:41 2018 +0000
committer	Sanjay Patel <spatel@rotateright.com>	Thu Jul 26 19:22:41 2018 +0000
tree	833b00bb921003640a20c2665cc308eece4338ec
parent	10c9e0e0d8c6f9651e9b2bb85518dc9302245f53 [diff]

[InstCombine] fold udiv with common factor from muls with nuw

Unfortunately, sdiv isn't as simple because of UB due to overflow.

This fold is mentioned in PR38239:
https://bugs.llvm.org/show_bug.cgi?id=38239

llvm-svn: 338059

llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp[diff]
llvm/test/Transforms/InstCombine/div.ll[diff]

2 files changed

tree: 833b00bb921003640a20c2665cc308eece4338ec

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.