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Hans Wennborg 2f471c83a0 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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202930 91177308-0d34-0410-b5e6-96231b3b80d8
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
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.clang-format Test commit. 2014-03-02 13:08:46 +00:00
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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
configure Add patch level to llvm version in CMake and Autoconf 2014-03-03 15:22:00 +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
llvm.spec.in
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README.txt Revert "Test commit to check e-mail address. Please discard this." 2013-10-04 10:59:13 +00:00

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