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Sanjay Patel 296cb7b128 Fix for PR20059 (instcombine reorders shufflevector after instruction that may trap) 
In PR20059 ( http://llvm.org/pr20059 ), instcombine eliminates shuffles that are necessary before performing an operation that can trap (srem).

This patch calls isSafeToSpeculativelyExecute() and bails out of the optimization in SimplifyVectorOp() if needed.

Differential Revision: http://reviews.llvm.org/D4424



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212629 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-09 16:34:54 +00:00
autoconf Remove path_tclsh.m4. 2014-06-02 12:54:32 +00:00
bindings [OCaml] Documentation improvements. 2014-07-02 22:17:20 +00:00
cmake Prospective -fsanitize=memory build fix following r212586 2014-07-09 06:27:05 +00:00
docs fixed typos 2014-07-04 19:40:43 +00:00
examples Try to fix the msvc build. 2014-04-29 23:37:02 +00:00
include Add Imagination Technologies to the vendors in llvm::Triple 2014-07-09 16:03:10 +00:00
lib Fix for PR20059 (instcombine reorders shufflevector after instruction that may trap) 2014-07-09 16:34:54 +00:00
projects
test Fix for PR20059 (instcombine reorders shufflevector after instruction that may trap) 2014-07-09 16:34:54 +00:00
tools Changed the lvm-nm alias "-s" for -print-armap to "-M". 2014-07-08 23:47:31 +00:00
unittests These should be EXPECT_TRUE, not EXPECT_FALSE. Amends r212415. 2014-07-06 20:20:02 +00:00
utils Use correct memeber when displaying StringMap's size. 2014-07-09 05:34:24 +00:00
.arcconfig
.clang-format
.gitignore Add Polly to the ignored trees. 2014-06-25 13:13:36 +00:00
CMakeLists.txt [CMake] Introduce LLVM_SHLIB_OUTPUT_INTDIR. 2014-07-04 04:23:26 +00:00
CODE_OWNERS.TXT
configure Touch configure to force clang's config.h.in reconfiguration on the build servers 2014-06-06 10:36:38 +00:00
CREDITS.TXT Update Credits. 2014-05-29 19:59:58 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in
Makefile.rules [Make] Fix dependencies for td.expanded 2014-06-20 19:00:41 +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 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're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.