commit	222e9c11f7c9bfba5a5a442d2f54d74fda96f78a	[log] [tgz]
author	Stanislav Mekhanoshin <Stanislav.Mekhanoshin@amd.com>	Wed Oct 31 21:24:30 2018 +0000
committer	Stanislav Mekhanoshin <Stanislav.Mekhanoshin@amd.com>	Wed Oct 31 21:24:30 2018 +0000
tree	e3b5efba9f3ced2ae67f8fc9a104a64cde34fa39
parent	03da6e6a623019916f3fd03b31cb19e6969db21f [diff]

Check shouldReduceLoadWidth from SimplifySetCC

SimplifySetCC could shrink a load without checking for
profitability or legality of such shink with a target.

Added checks to prevent shrinking of aligned scalar loads
in AMDGPU below dword as scalar engine does not support it.

Differential Revision: https://reviews.llvm.org/D53846

llvm-svn: 345778

llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp[diff]
llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp[diff]
llvm/test/CodeGen/AMDGPU/setcc-limit-load-shrink.ll[Added - diff]

3 files changed

tree: e3b5efba9f3ced2ae67f8fc9a104a64cde34fa39

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