maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
318,557 Commits 23 Branches 0 Tags 2.2 GiB
C++ 39.1%
LLVM 35.7%
C 12.1%
Assembly 8.9%
Python 1.1%
Other 2.7%
Go to file
Anton Afanasyev 623d9ba068 [MIR] Add simple PRE pass to MachineCSE 
This is the second part of the commit fixing PR38917 (hoisting
partitially redundant machine instruction). Most of PRE (partitial
redundancy elimination) and CSE work is done on LLVM IR, but some of
redundancy arises during DAG legalization. Machine CSE is not enough
to deal with it. This simple PRE implementation works a little bit
intricately: it passes before CSE, looking for partitial redundancy
and transforming it to fully redundancy, anticipating that the next
CSE step will eliminate this created redundancy. If CSE doesn't
eliminate this, than created instruction will remain dead and eliminated
later by Remove Dead Machine Instructions pass.

The third part of the commit is supposed to refactor MachineCSE,
to make it more clear and to merge MachinePRE with MachineCSE,
so one need no rely on further Remove Dead pass to clear instrs
not eliminated by CSE.

First step: https://reviews.llvm.org/D54839

Fixes llvm.org/PR38917

This is fixed recommit of r361356 after PowerPC64 multistage build failure.

llvm-svn: 362901
 		2019-06-09 12:15:47 +00:00
clang [analyzer][NFC] Add dividers to BugReporterVisitors.cpp 2019-06-08 20:25:39 +00:00
clang-tools-extra [clangd] Return empty results on spurious completion triggers 2019-06-07 16:24:38 +00:00
compiler-rt Experimantal dfsan mode "fast16labels=1" 2019-06-08 00:22:23 +00:00
debuginfo-tests Add cdb test for global constants 2019-06-06 20:23:05 +00:00
libclc travis: Add LLVM-8 build 2019-03-27 21:28:31 +00:00
libcxx update debugging docs to be less out of date 2019-06-08 04:59:41 +00:00
libcxxabi [libcxx] Use libtool when merging archives on Apple platforms 2019-06-02 01:14:31 +00:00
libunwind [Docs] Modernize references to macOS 2019-05-30 16:46:22 +00:00
lld [ELF] [PPC] Fix a typo from SVN r362721 2019-06-08 18:26:27 +00:00
lldb [Target] Remove unused header from Process 2019-06-08 19:07:05 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm [MIR] Add simple PRE pass to MachineCSE 2019-06-09 12:15:47 +00:00
openmp Added propagation of not big initial stack size of master thread to workers. 2019-06-05 16:14:47 +00:00
parallel-libs Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
polly [ScheduleTreeTransform] Silence compiler warning. NFC. 2019-06-06 17:15:36 +00:00
pstl [pstl] The optimized parallel versions of sort, stable_sort algorithms, TBB parallel backend. 2019-06-06 07:34:46 +00:00
.arcconfig Update monorepo .arcconfig with new project callsign. 2019-01-31 14:34:59 +00:00
.clang-format Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.gitignore Add a reduced copy of the llvm .gitignore 2019-04-09 00:52:49 +00:00
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.