RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-23 03:02:36 +01:00
Code Issues Projects Releases Wiki Activity
Mirror of https://github.com/RPCS3/llvm-mirror
157,825 Commits 4 Branches 5 Tags 704 MiB
C++ 96.9%
C 1%
Python 1%
CMake 0.6%
OCaml 0.2%
Other 0.1%
3e0a55b362
Go to file
Fiona Glaser 3e0a55b362 Reassociate: add global reassociation algorithm 
This algorithm (explained more in the source code) takes into account
global redundancies by building a "pair map" to find common subexprs.

The primary motivation of this is to handle situations like

foo = (a * b) * c
bar = (a * d) * c

where we currently don't identify that "a * c" is redundant.

Accordingly, it prioritizes the emission of a * c so that CSE
can remove the redundant calculation later.

Does not change the actual reassociation algorithm -- only the
order in which the reassociated operand chain is reconstructed.

Gives ~1.5% floating point math instruction count reduction on
a large offline suite of graphics shaders.

llvm-svn: 320515
2017-12-12 19:18:02 +00:00
bindings Update go bindings to use new functions from rL317135. 2017-11-02 10:22:26 +00:00
cmake [cmake] Pass TARGETS_TO_BUILD through to host tools build 2017-12-11 19:53:23 +00:00
docs [MachineOperand][MIR] Add isRenamable to MachineOperand. 2017-12-12 17:53:59 +00:00
examples [CMake] Use PRIVATE in target_link_libraries for executables 2017-12-05 21:49:56 +00:00
include Reassociate: add global reassociation algorithm 2017-12-12 19:18:02 +00:00
lib Reassociate: add global reassociation algorithm 2017-12-12 19:18:02 +00:00
projects [cmake] Support moving debuginfo-tests to llvm/projects 2017-12-12 17:06:08 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
runtimes [runtimes] Add install-*-stripped targets 2017-12-08 19:42:46 +00:00
test Reassociate: add global reassociation algorithm 2017-12-12 19:18:02 +00:00
tools [dsymutil] Accept line tables up to DWARFv5. 2017-12-12 11:32:21 +00:00
unittests Test commit. 2017-12-12 18:00:43 +00:00
utils Avoid constructing an out-of-range value for an enumeration (which results in UB). 2017-12-08 22:32:35 +00:00
.arcconfig project_id is from another era in phabricator land and does not provide any value. 2016-09-27 15:47:29 +00:00
.clang-format
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitattributes [MC] Fix regression tests on Windows when git “core.autocrlf” is set to true. 2017-11-17 21:59:43 +00:00
.gitignore gitignore: Ignore .vs folder (VS2017 config files) 2017-04-08 00:16:58 +00:00
CMakeLists.txt [cmake] Support moving debuginfo-tests to llvm/projects 2017-12-12 17:06:08 +00:00
CODE_OWNERS.TXT Update my email addresses, NFC. 2017-10-26 10:16:54 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Add myself to CREDITS.txt 2017-09-18 14:33:39 +00:00
LICENSE.TXT Bump year to 2017 in LICENSE.txt 2017-01-12 18:02:42 +00:00
llvm.spec.in [Sparc] Implement i64 load/store support for 32-bit sparc. 2015-08-10 19:11:39 +00:00
LLVMBuild.txt
README.txt Test commit access 2017-08-18 02:39:28 +00:00
RELEASE_TESTERS.TXT Update my email addresses, NFC. 2017-10-26 10:16:54 +00:00

README.txt 

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.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.