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Mirror of https://github.com/RPCS3/llvm-mirror
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Duncan Sands 44c273d907 Move some shift transforms out of instcombine and into InstructionSimplify. 
While there, I noticed that the transform "undef >>a X -> undef" was wrong.
For example if X is 2 then the top two bits must be equal, so the result can
not be anything.  I fixed this in the constant folder as well.  Also, I made
the transform for "X << undef" stronger: it now folds to undef always, even
though X might be zero.  This is in accordance with the LangRef, but I must
admit that it is fairly aggressive.  Also, I added "i32 X << 32 -> undef"
following the LangRef and the constant folder, likewise fairly aggressive.

llvm-svn: 123417
2011-01-14 00:37:45 +00:00
autoconf autoconf: Add --disable-embed-stdcxx to suppress linking libstdc++.a into llvm.dll with --enable-shared on Cygming. 2010-12-29 03:59:14 +00:00
bindings Fix OCaml bindings crash, PR8847. 2010-12-23 15:49:26 +00:00
cmake Add some platform tests. 2011-01-13 19:17:28 +00:00
docs Don't document exactly how virtual registers are represented as integers. Code 2011-01-08 23:10:59 +00:00
examples Do not re-test for the existence of pthread.h. 2010-12-23 21:27:22 +00:00
include Move some shift transforms out of instcombine and into InstructionSimplify. 2011-01-14 00:37:45 +00:00
lib Move some shift transforms out of instcombine and into InstructionSimplify. 2011-01-14 00:37:45 +00:00
projects Regen configure 2010-12-12 21:42:01 +00:00
runtime
test Move some shift transforms out of instcombine and into InstructionSimplify. 2011-01-14 00:37:45 +00:00
tools Little help to debug the bugpoint itself. 2011-01-13 19:48:54 +00:00
unittests Disable RTTI when building unit tests. This avoids errors at link time. 2011-01-13 15:31:45 +00:00
utils Add support to the ARM MC infrastructure to support mcr and friends. This requires supporting 2011-01-13 21:46:02 +00:00
website
.gitignore Cleanup and document .gitignore. 2010-12-17 17:22:50 +00:00
build-for-llvm-top.sh
CMakeLists.txt Add to the CMake build some options and platform tests supported by 2011-01-11 12:31:54 +00:00
configure autoconf: Add --disable-embed-stdcxx to suppress linking libstdc++.a into llvm.dll with --enable-shared on Cygming. 2010-12-29 03:59:14 +00:00
CREDITS.TXT Another git svn dcommit test. This time let's hope it doesn't kill my repo. 2010-12-10 14:45:10 +00:00
LICENSE.TXT
llvm.spec.in
Makefile Merge System into Support. 2010-11-29 18:16:10 +00:00
Makefile.common
Makefile.config.in autoconf: Add --disable-embed-stdcxx to suppress linking libstdc++.a into llvm.dll with --enable-shared on Cygming. 2010-12-29 03:59:14 +00:00
Makefile.rules build: Shared libraries shouldn't used RPATH on Darwin, only main executables 2010-12-08 02:29:26 +00:00
ModuleInfo.txt
README.txt

README.txt 

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

This directory and its subdirectories contain source code for the Low Level
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LLVM is open source software. You may freely distribute it under the terms of
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Please see the HTML documentation provided in docs/index.html for further
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