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a4a812fedd
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David Majnemer a4a812fedd InstCombine: Correctly propagate NSW/NUW for x-(-A) -> x+A 
We can only propagate the nsw bits if both subtraction instructions are
marked with the appropriate bit.

N.B.  We only propagate the nsw bit in InstCombine because the nuw case
is already handled in InstSimplify.

This fixes PR20189.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214385 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-31 04:49:29 +00:00
autoconf [autoconf] Fixup s/3.5/3.6/. Clang's ident was 3.5.0svn in autoconf build. 2014-07-29 08:35:03 +00:00
bindings [OCaml] Don't truncate constants over 32 bits in Llvm.const_int. 2014-07-22 13:55:20 +00:00
cmake Emit a warning if llvm_map_components_to_libraries() is used noting that its 2014-07-28 13:36:50 +00:00
docs Fix some grammatical errors. 2014-07-31 04:25:36 +00:00
examples Added LLVM_ENABLE_RTTI and LLVM_ENABLE_EH options that allow RTTI and EH 2014-07-22 15:41:18 +00:00
include A std::unique_ptr case I missed in the previous patch. 2014-07-31 03:36:00 +00:00
lib InstCombine: Correctly propagate NSW/NUW for x-(-A) -> x+A 2014-07-31 04:49:29 +00:00
projects [cmake] Use the external project machinery for libcxxabi so that it can 2014-07-25 10:27:40 +00:00
test InstCombine: Correctly propagate NSW/NUW for x-(-A) -> x+A 2014-07-31 04:49:29 +00:00
tools Use std::unique_ptr to make the ownership explicit. 2014-07-31 03:12:45 +00:00
unittests [Debug Info] add DISubroutineType and its creation takes DITypeArray. 2014-07-28 22:24:06 +00:00
utils Fix FileCheck crash when empty prefix is passed. 2014-07-29 20:30:53 +00:00
.arcconfig
.clang-format
.gitignore
CMakeLists.txt Update LLVM version: 3.5 => 3.6 2014-07-28 22:10:52 +00:00
CODE_OWNERS.TXT Claim AA generally as code owner 2014-07-25 16:45:10 +00:00
configure [autoconf] Fixup s/3.5/3.6/. Clang's ident was 3.5.0svn in autoconf build. 2014-07-29 08:35:03 +00:00
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in Track clang r213171 2014-07-16 16:50:34 +00:00
Makefile.rules
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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optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
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Please see the documentation provided in docs/ for further
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