commit	73d8e4e53186c43e7aa99cc0dfa8d640b047ef98	[log] [tgz]
author	JF Bastien <jfbastien@apple.com>	Fri Sep 21 05:17:42 2018 +0000
committer	JF Bastien <jfbastien@apple.com>	Fri Sep 21 05:17:42 2018 +0000
tree	af52acbbbef50a4610340b07b17750a989dceb07
parent	9da65a3ab009ca2f3b55d7a95d266554fec88d31 [diff]

Merge clang's isRepeatedBytePattern with LLVM's isBytewiseValue

Summary:
his code was in CGDecl.cpp and really belongs in LLVM's isBytewiseValue. Teach isBytewiseValue the tricks clang's isRepeatedBytePattern had, including merging undef properly, and recursing on more types.

clang part of this patch: D51752

Subscribers: dexonsmith, llvm-commits

Differential Revision: https://reviews.llvm.org/D51751

llvm-svn: 342709

llvm/include/llvm/Analysis/ValueTracking.h[diff]
llvm/lib/Analysis/ValueTracking.cpp[diff]
llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp[diff]
llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp[diff]
llvm/test/Transforms/MemCpyOpt/fca2memcpy.ll[diff]
llvm/test/Transforms/MemCpyOpt/memcpy-to-memset.ll[diff]

6 files changed

tree: af52acbbbef50a4610340b07b17750a989dceb07

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.