RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-23 11:13:28 +01:00
Code Issues Projects Releases Wiki Activity
Mirror of https://github.com/RPCS3/llvm-mirror
99,905 Commits 4 Branches 5 Tags 704 MiB
C++ 96.9%
C 1%
Python 1%
CMake 0.6%
OCaml 0.2%
Other 0.1%
f0d12dd9ee
Go to file
Quentin Colombet f0d12dd9ee [CodeGenPrepare] Move away sign extensions that get in the way of addressing 
mode.

Basically the idea is to transform code like this:
%idx = add nsw i32 %a, 1
%sextidx = sext i32 %idx to i64
%gep = gep i8* %myArray, i64 %sextidx
load i8* %gep

Into:
%sexta = sext i32 %a to i64
%idx = add nsw i64 %sexta, 1
%gep = gep i8* %myArray, i64 %idx
load i8* %gep

That way the computation can be folded into the addressing mode.

This transformation is done as part of the addressing mode matcher.
If the matching fails (not profitable, addressing mode not legal, etc.), the
matcher will revert the related promotions.

<rdar://problem/15519855>

llvm-svn: 200947
2014-02-06 21:44:56 +00:00
autoconf Fix configure to find arc4random via header files. 2014-02-05 05:04:36 +00:00
bindings Makefile.ocaml: Tweak to use --system-libs. 2013-12-20 00:36:59 +00:00
cmake Fix configure to find arc4random via header files. 2014-02-05 05:04:36 +00:00
docs Remove support for not using .loc directives. 2014-02-05 18:00:21 +00:00
examples [cleanup] Re-sort the examples #include lines with my sort_includes 2014-01-13 09:58:03 +00:00
include Remove const_cast for STI when parsing inline asm 2014-02-06 18:19:40 +00:00
lib [CodeGenPrepare] Move away sign extensions that get in the way of addressing 2014-02-06 21:44:56 +00:00
projects llvm/projects/CMakeLists.txt: Add dragonegg. 2014-01-24 12:53:08 +00:00
test [CodeGenPrepare] Move away sign extensions that get in the way of addressing 2014-02-06 21:44:56 +00:00
tools [PM] Add a new "lazy" call graph analysis pass for the new pass manager. 2014-02-06 04:37:03 +00:00
unittests Fix layering StringRef copy using BumpPtrAllocator. 2014-02-05 22:22:56 +00:00
utils Delete all of the CodeGenInstructions from CodeGenTarget destructor. 2014-02-06 06:27:59 +00:00
.arcconfig Add .arcconfig to the repository. Useful if someone wants to use phabricator's command line tool. 2012-12-01 12:07:58 +00:00
.clang-format Add a clang-format file so that the tool can automatically detect the 2013-09-02 07:19:04 +00:00
.gitignore Added .DS_Store entry in .gitignore for ignoring .DS_Store files in the source 2014-01-25 15:15:16 +00:00
CMakeLists.txt [CMake] Move -stdlib=libc++ handling into its own file. 2014-02-05 00:02:37 +00:00
CODE_OWNERS.TXT Update email address. 2013-12-04 09:42:49 +00:00
configure Fix configure to find arc4random via header files. 2014-02-05 05:04:36 +00:00
CREDITS.TXT Fix documentation typos 2013-12-20 00:33:39 +00:00
LICENSE.TXT Update the copyright credits -- Happy new year 2014! 2014-01-01 08:27:31 +00:00
llvm.spec.in Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile Fix bad variable syntax in r199413 2014-01-17 00:40:39 +00:00
Makefile.common Makefile.common: Update a description, s/Source/SOURCES/ , according to MakefileGuide.html#control-variables . 2012-12-07 01:43:23 +00:00
Makefile.config.in Add an autoconf option for turning on -gsplit-dwarf by default 2013-06-25 01:12:25 +00:00
Makefile.rules [Mips]Work around MIPS linker issues exposed by commit r198087 until bug 18360 is resolved 2014-01-03 22:18:43 +00:00
README.txt Revert "Test commit to check e-mail address. Please discard this." 2013-10-04 10:59:13 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, 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're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.