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e5cbdca3bd
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Chris Lattner e5cbdca3bd recognize an unsigned add with overflow idiom into uadd. 
This resolves a README entry and technically resolves PR4916,
but we still get poor code for the testcase in that PR because
GVN isn't CSE'ing uadd with add, filed as PR8817.

Previously we got:

_test7:                                 ## @test7
	addq	%rsi, %rdi
	cmpq	%rdi, %rsi
	movl	$42, %eax
	cmovaq	%rsi, %rax
	ret

Now we get:

_test7:                                 ## @test7
	addq	%rsi, %rdi
	movl	$42, %eax
	cmovbq	%rsi, %rax
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122182 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-19 19:37:52 +00:00
autoconf
bindings
cmake
docs
examples
include add a version of IRBuilder::SetInsertPoint that takes an instruction. 2010-12-19 19:16:22 +00:00
lib recognize an unsigned add with overflow idiom into uadd. 2010-12-19 19:37:52 +00:00
projects
runtime
test recognize an unsigned add with overflow idiom into uadd. 2010-12-19 19:37:52 +00:00
tools Support/PathV1: Deprecate get{Basename,Dirname,Suffix}. 2010-12-18 22:23:07 +00:00
unittests Add more checks to IntervalMapOverlaps::advance() to ensure that advanceTo sees 2010-12-17 22:07:54 +00:00
utils Support/PathV1: Deprecate get{Basename,Dirname,Suffix}. 2010-12-18 22:23:07 +00:00
website
.gitignore
build-for-llvm-top.sh
CMakeLists.txt CMake: Cleanup and document MSVC warning flags. 2010-12-18 00:18:58 +00:00
configure
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
Makefile
Makefile.common
Makefile.config.in
Makefile.rules
ModuleInfo.txt
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.

If you're writing a package for LLVM, see docs/Packaging.html for our
suggestions.