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Juergen Ributzka fe3cb34d8e [AArch64] Don't optimize all compare instructions. "optimizeCompareInstr" converts compares (cmp/cmn) into plain sub/add instructions when the flags are not used anymore. This conversion is valid for most instructions, but not all. Some instructions that don't set the flags (e.g. sub with immediate) can set the SP, whereas the flag setting version uses the same encoding for the "zero" register. Update the code to also check for the return register before performing the optimization to make sure that a cmp doesn't suddenly turn into a sub that sets the stack pointer. I don't have a test case for this, because it isn't easy to trigger. llvm-svn: 222255		2014-11-18 21:02:40 +00:00
autoconf	Add a check for misbehaving -Wcomment from gcc-4.7 and add	2014-11-05 00:35:15 +00:00
bindings	[OCaml] Fix mismatched CAMLparam/CAMLreturn.	2014-11-03 11:47:14 +00:00
cmake	CMake: Use the new USES_TERMINAL option for test suite targets when available.	2014-11-17 22:16:15 +00:00
docs	docs: Modernize some examples in WritingAnLLVMPass	2014-11-18 05:22:39 +00:00
examples	[CMake] llvm/examples: Update libdeps for unoptimized builds.	2014-10-31 15:27:16 +00:00
include	IR: Sink MDNode::Hash down to GenericMDNode::Hash	2014-11-18 02:20:29 +00:00
lib	[AArch64] Don't optimize all compare instructions.	2014-11-18 21:02:40 +00:00
projects	[cmake] Use the external project machinery for libcxxabi so that it can	2014-07-25 10:27:40 +00:00
test	R600/SI: Make sure resource descriptors are always stored in SGPRs	2014-11-18 20:39:39 +00:00
tools	llvm-readobj: Don't print the Characteristics field as the Subsystem	2014-11-18 02:45:28 +00:00
unittests	CallGraphTest.cpp: Remove invalid tests. ++S might step over F if S == F.	2014-11-18 12:23:19 +00:00
utils	Revert "Improve memory ownership/management in TableGen by unique_ptrifying TreePattern's Tree member."	2014-11-17 22:55:41 +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
.clang-tidy	Enable display of compiler diagnostics in clang-tidy by default.	2014-10-29 17:29:38 +00:00
.gitignore	Initial version of Go bindings.	2014-10-16 22:48:02 +00:00
CMakeLists.txt	CMake: Use the new USES_TERMINAL option for test suite targets when available.	2014-11-17 22:16:15 +00:00
CODE_OWNERS.TXT	Add Tom Stellard's role as 3.5 release manager.	2014-09-12 08:07:31 +00:00
configure	Add a check for misbehaving -Wcomment from gcc-4.7 and add	2014-11-05 00:35:15 +00:00
CREDITS.TXT	Rise from the dead and update personal info	2014-08-25 17:51:04 +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.config.in	Add a check for misbehaving -Wcomment from gcc-4.7 and add	2014-11-05 00:35:15 +00:00
Makefile.rules	Add a check for misbehaving -Wcomment from gcc-4.7 and add	2014-11-05 00:35:15 +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.