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886ab6c49c
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Chris Lattner 886ab6c49c make some fairly meaty internal changes to how SimplifyDemandedBits works. 
Now, if it detects that "V" is the same as some other value, 
SimplifyDemandedBits returns the new value instead of RAUW'ing it immediately.
This has two benefits:
1) simpler code in the recursive SimplifyDemandedBits routine.
2) it allows future fun stuff in instcombine where an operation has multiple
   uses and can be simplified in one context, but not all.

#2 isn't implemented yet, this patch should have no functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63479 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 08:15:18 +00:00
autoconf Revert r62553 and r62616 due to issues with portability. 2009-01-22 20:09:20 +00:00
bindings Rename getABITypeSize to getTypePaddedSize, as 2009-01-12 20:38:59 +00:00
cmake CMake: Tests PERL availability with PERL_EXECUTABLE variable. 2009-01-22 01:20:31 +00:00
docs Each input file is encoded as a separate compile unit in LLVM debugging 2009-01-30 18:20:31 +00:00
examples reapply Sanjiv's patch to genericize memcpy/memset/memmove to take an 2008-11-21 16:42:48 +00:00
include add accessors 2009-01-31 07:34:19 +00:00
lib make some fairly meaty internal changes to how SimplifyDemandedBits works. 2009-01-31 08:15:18 +00:00
projects Add "sample" documentation to sample project. 2008-09-15 05:31:29 +00:00
runtime
test make sure to set Changed=true when instcombine hacks on the code, 2009-01-31 07:04:22 +00:00
tools Add some comments. 2009-01-30 02:12:57 +00:00
unittests APInt's countLeadingOnes() was broken for negative i128 values, 2009-01-27 18:06:03 +00:00
utils Explain why this is here. 2009-01-29 23:19:43 +00:00
website
win32 Fix PR3415 (infinite loop in EscapeAnalysis) by 2009-01-28 11:33:59 +00:00
Xcode Remove Stacker.html from Xcode project. 2008-10-14 23:23:59 +00:00
build-for-llvm-top.sh Patch to build llvm with srcdir != objdir from 2009-01-23 08:42:38 +00:00
CMakeLists.txt Enable PACKAGE_VERSION in cmake builds, this unbreaks the clang build with cmake. 2009-01-28 17:49:03 +00:00
configure Regenerated configure after backing out 62553 and r62616. 2009-01-22 20:11:17 +00:00
CREDITS.TXT Adding your's truly to CREDITS.TXT 2009-01-19 15:04:29 +00:00
LICENSE.TXT Renamed Google Test license file from COPYING to LICENSE.TXT to match LLVM 2009-01-05 17:42:15 +00:00
llvm.spec.in
Makefile Add targets to support the installation of clang in isolation. 2009-01-19 19:48:23 +00:00
Makefile.common Removed trailing whitespace from Makefiles. 2009-01-09 16:44:42 +00:00
Makefile.config.in Removed trailing whitespace from Makefiles. 2009-01-09 16:44:42 +00:00
Makefile.rules Perform optional clang building. 2009-01-24 00:00:41 +00:00
ModuleInfo.txt Patch to build llvm with srcdir != objdir from 2009-01-23 08:42:38 +00:00
README.txt

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 HTML documentation provided in docs/index.html for further
assistance with LLVM.