RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2024-12-15 16:09:57 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
Old fork of llvm-mirror, used on older RPCS3 builds
127,338 Commits 39 Branches 10 Tags 850 MiB
LLVM 52.9%
C++ 32.7%
Assembly 13.2%
Python 0.4%
C 0.4%
Other 0.3%
41fcf12691
Go to file
Silviu Baranga 41fcf12691 [SCEV][LAA] Add no wrap SCEV predicates and use use them to improve strided pointer detection 
Summary:
This change adds no wrap SCEV predicates with:
  - support for runtime checking
  - support for expression rewriting:
      (sext ({x,+,y}) -> {sext(x),+,sext(y)}
      (zext ({x,+,y}) -> {zext(x),+,sext(y)}

Note that we are sign extending the increment of the SCEV, even for
the zext case. This is needed to cover the fairly common case where y would
be a (small) negative integer. In order to do this, this change adds two new
flags: nusw and nssw that are applicable to AddRecExprs and permit the
transformations above.

We also change isStridedPtr in LAA to be able to make use of
these predicates. With this feature we should now always be able to
work around overflow issues in the dependence analysis.

Reviewers: mzolotukhin, sanjoy, anemet

Subscribers: mzolotukhin, sanjoy, llvm-commits, rengolin, jmolloy, hfinkel

Differential Revision: http://reviews.llvm.org/D15412

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@260085 91177308-0d34-0410-b5e6-96231b3b80d8
2016-02-08 10:45:50 +00:00
bindings Remove autoconf support 2016-01-26 21:29:08 +00:00
cmake Install cmake files to lib/cmake/llvm 2016-02-04 20:08:19 +00:00
docs [docs] Add a note that the Visual Studio C++ tools are required 2016-02-07 19:36:54 +00:00
examples Remove autoconf support 2016-01-26 21:29:08 +00:00
include [SCEV][LAA] Add no wrap SCEV predicates and use use them to improve strided pointer detection 2016-02-08 10:45:50 +00:00
lib [SCEV][LAA] Add no wrap SCEV predicates and use use them to improve strided pointer detection 2016-02-08 10:45:50 +00:00
projects Remove autoconf support 2016-01-26 21:29:08 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
test [SCEV][LAA] Add no wrap SCEV predicates and use use them to improve strided pointer detection 2016-02-08 10:45:50 +00:00
tools [llvm-dwp] Merge cu_index from DWPs 2016-02-06 01:15:26 +00:00
unittests Revert 259942, r259943, r259948. 2016-02-07 20:09:18 +00:00
utils TableGen: Add IsOptional field to AsmOperandClass 2016-02-05 19:59:33 +00:00
.arcconfig
.clang-format
.clang-tidy adding readability-identifier-naming to llvm clang-tidy configuration. 2015-12-08 17:44:51 +00:00
.gitignore Minor updates to gitignore so that symlinks are ignored in the projects dir. 2015-07-07 20:24:58 +00:00
CMakeLists.txt [GlobalISel] Add the proper cmake plumbing. 2016-01-20 20:58:56 +00:00
CODE_OWNERS.TXT [docs] Remove references to autotools build. 2016-01-30 01:10:15 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT [WebAssembly] Initial WebAssembly backend 2015-06-29 23:51:55 +00:00
LICENSE.TXT
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 Revert previous test commit. 2016-01-04 19:13:29 +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.