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Hans Wennborg acb842d523 Check for dynamic allocas and inline asm that clobbers sp before building 
selection dag (PR19012)

In X86SelectionDagInfo::EmitTargetCodeForMemcpy we check with MachineFrameInfo
to make sure that ESI isn't used as a base pointer register before we choose to
emit rep movs (which clobbers esi).

The problem is that MachineFrameInfo wouldn't know about dynamic allocas or
inline asm that clobbers the stack pointer until SelectionDAGBuilder has
encountered them.

This patch fixes the problem by checking for such things when building the
FunctionLoweringInfo.

Differential Revision: http://llvm-reviews.chandlerc.com/D2954

llvm-svn: 202930
 		2014-03-05 02:43:26 +00:00
..
autoconf Update comment. 2014-03-05 00:43:38 +00:00
bindings [python-bindings] Remove some cruft that snuck in. 2014-02-23 04:43:26 +00:00
cmake [CMake] add_llvm_target(): No need to include TABLEGEN_OUTPUT in source list. 2014-03-04 17:05:28 +00:00
docs Change x86mmx -> x86_mmx in LangRef.rst 2014-03-05 02:41:37 +00:00
examples Use DataLayout from the module when easily available. 2014-02-25 23:25:17 +00:00
include Check for dynamic allocas and inline asm that clobbers sp before building 2014-03-05 02:43:26 +00:00
lib Check for dynamic allocas and inline asm that clobbers sp before building 2014-03-05 02:43:26 +00:00
projects Drop libtool from llvm. 2014-02-28 18:17:54 +00:00
test Check for dynamic allocas and inline asm that clobbers sp before building 2014-03-05 02:43:26 +00:00
tools llvm-objdump: Indent unwind info contents. 2014-03-04 19:23:56 +00:00
unittests Hey, we can stop depending on the IR library from the Support unittests 2014-03-04 12:56:38 +00:00
utils [cleanup] Re-sort all the includes with utils/sort_includes.py. 2014-03-04 10:07:28 +00:00
.arcconfig
…
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.gitignore Added .DS_Store entry in .gitignore for ignoring .DS_Store files in the source 2014-01-25 15:15:16 +00:00
CMakeLists.txt Cleaning up a bunch of pre-Visual C++ 2012 build hacks. 2014-03-04 09:23:33 +00:00
CODE_OWNERS.TXT Add myself as owner for libc++ 2014-02-18 14:03:17 +00:00
CREDITS.TXT Fix documentation typos 2013-12-20 00:33:39 +00:00
LICENSE.TXT Update the copyright credits -- Happy new year 2014! 2014-01-01 08:27:31 +00:00
LLVMBuild.txt
…
Makefile Provide CMake package modules in install tree 2014-02-09 16:37:02 +00:00
Makefile.common
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Makefile.config.in Add patch level to llvm version in CMake and Autoconf 2014-03-03 15:22:00 +00:00
Makefile.rules Add patch level to llvm version in CMake and Autoconf 2014-03-03 15:22:00 +00:00
README.txt
…
configure Add patch level to llvm version in CMake and Autoconf 2014-03-03 15:22:00 +00:00
llvm.spec.in
…

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.