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0f2bc49126
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Sanjay Patel 0f2bc49126 fix for PR20354 - Miscompile of fabs due to vectorization 
This is intended to be the minimal change needed to fix PR20354 ( http://llvm.org/bugs/show_bug.cgi?id=20354 ). The check for a vector operation was wrong; we need to check that the fabs itself is not a vector operation.

This patch will not generate the optimal code. A constant pool load and 'and' op will be generated instead of just returning a value that we can calculate in advance (as we do for the scalar case). I've put a 'TODO' comment for that here and expect to have that patch ready soon.

There is a very similar optimization that we can do in visitFNEG, so I've put another 'TODO' there and expect to have another patch for that too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214670 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-03 22:48:23 +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 [lit] Add --show-xfail flag to LIT. 2014-08-02 01:29:52 +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 MachineCombiner Pass for selecting faster instruction 2014-08-03 21:35:39 +00:00
lib fix for PR20354 - Miscompile of fabs due to vectorization 2014-08-03 22:48:23 +00:00
projects [cmake] Use the external project machinery for libcxxabi so that it can 2014-07-25 10:27:40 +00:00
test fix for PR20354 - Miscompile of fabs due to vectorization 2014-08-03 22:48:23 +00:00
tools verify-uselistorder: Reverse use-lists at every verification 2014-08-01 23:49:41 +00:00
unittests BitcodeTests: Fix LINK_COMPONENTS. 2014-08-02 00:12:54 +00:00
utils Add a small utility called bisect that enables commandline bisecting on a counter. 2014-08-02 01:39:08 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.gitignore Add Polly to the ignored trees. 2014-06-25 13:13:36 +00:00
CMakeLists.txt Fix building with in-tree libc++abi on FreeBSD 2014-08-01 19:23:15 +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 Update Credits. 2014-05-29 19:59:58 +00:00
LICENSE.TXT Remove projects/sample. 2014-03-12 22:40:22 +00:00
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile [configure/make] Propagate names of build host tools when making BuildTools 2014-03-25 21:45:41 +00:00
Makefile.common Makefile.common: Update a description, s/Source/SOURCES/ , according to MakefileGuide.html#control-variables . 2012-12-07 01:43:23 +00:00
Makefile.config.in Track clang r213171 2014-07-16 16:50:34 +00:00
Makefile.rules [Make] Fix dependencies for td.expanded 2014-06-20 19:00:41 +00:00
README.txt Trivial test commit. 2014-04-26 19:05:45 +00:00

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.