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Hiroshi Inoue b3494afe28 [SelectionDAG] set dereferenceable flag when expanding memcpy/memmove 
When SelectionDAG expands memcpy (or memmove) call into a sequence of load and store instructions, it disregards dereferenceable flag even the source pointer is known to be dereferenceable.
This results in an assertion failure if SelectionDAG commonizes a load instruction generated for memcpy with another load instruction for the source pointer.
This patch makes SelectionDAG to set the dereferenceable flag for the load instructions properly to avoid the assertion failure.

Differential Revision: https://reviews.llvm.org/D34467

llvm-svn: 306209
2017-06-24 15:17:38 +00:00
bindings [Go] Subtypes function 2017-06-08 07:32:29 +00:00
cmake TableGen.cmake: Use DEPFILE for Ninja Generator with CMake>=3.7. 2017-06-21 22:04:07 +00:00
docs [docs] As of binutils 2.21.51.0.2, ld.bfd supports plugins too, represent this in docs 2017-06-23 13:54:10 +00:00
examples [ORC] Re-apply r306166 and r306168 with fix for regression test. 2017-06-23 23:25:28 +00:00
include [SelectionDAG] set dereferenceable flag when expanding memcpy/memmove 2017-06-24 15:17:38 +00:00
lib [SelectionDAG] set dereferenceable flag when expanding memcpy/memmove 2017-06-24 15:17:38 +00:00
projects Add temporary workaround to allow in-tree libc++ builds on Windows 2017-05-11 01:44:30 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
runtimes [CMake][runtimes] Add install target for runtimes builtins 2017-06-02 19:38:11 +00:00
test [SelectionDAG] set dereferenceable flag when expanding memcpy/memmove 2017-06-24 15:17:38 +00:00
tools Ensure backends available in 'opt' are also available in 'bugpoint' 2017-06-24 08:09:33 +00:00
unittests [ORC] Re-apply r306166 and r306168 with fix for regression test. 2017-06-23 23:25:28 +00:00
utils [opt-viewer] Remove positional arg checks (NFC) 2017-06-23 20:06:34 +00:00
.arcconfig project_id is from another era in phabricator land and does not provide any value. 2016-09-27 15:47:29 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitignore gitignore: Ignore .vs folder (VS2017 config files) 2017-04-08 00:16:58 +00:00
CMakeLists.txt [Solaris] replace Solaris.h hack with a set of better hacks 2017-06-22 13:18:46 +00:00
CODE_OWNERS.TXT [CODE_OWNERS] Add my other email address since my commits are now using my work email. 2017-06-24 03:26:01 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Test commit: update my email 2017-06-24 03:12:53 +00:00
LICENSE.TXT Bump year to 2017 in LICENSE.txt 2017-01-12 18:02:42 +00:00
llvm.spec.in [Sparc] Implement i64 load/store support for 32-bit sparc. 2015-08-10 19:11:39 +00:00
LLVMBuild.txt
README.txt Test commit. Added a blank line. 2017-03-06 20:45:33 +00:00
RELEASE_TESTERS.TXT Update the release tester for MIPS. NFC. 2017-01-17 11:00:28 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for LLVM,
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 are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.