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David Majnemer 3931bdb788 SimplifyCFG: Do not transform PHI to select if doing so would be unsafe 
PR16069 is an interesting case where an incoming value to a PHI is a
trap value while also being a 'ConstantExpr'.

We do not consider this case when performing the 'HoistThenElseCodeToIf'
optimization.

Instead, make our modifications more conservative if we detect that we
cannot transform the PHI to a select.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183152 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-03 20:43:12 +00:00
autoconf Make R600 non-experimental. 2013-05-22 00:35:47 +00:00
bindings We're in 3.4 land now. 2013-05-07 20:31:28 +00:00
cmake Add colored diagnostics when building LLVM with cmake + ninja + clang 2013-05-29 20:41:35 +00:00
docs Add links to the System z architecture manual and ABI 2013-05-31 09:14:54 +00:00
examples ExceptionDemo: Corresponding to r181820, SectionMemoryManager should belong to RTDyldMemoryManager. 2013-05-14 23:05:00 +00:00
include Introduce needsCleanup() for APFloat and APInt. 2013-06-03 13:03:05 +00:00
lib SimplifyCFG: Do not transform PHI to select if doing so would be unsafe 2013-06-03 20:43:12 +00:00
projects sync projects/sample's autohell. 2013-05-22 12:37:27 +00:00
runtime Remove GCDAProfiling.c. This copy is old, the copy in compiler-rt is newer and 2013-03-07 02:03:08 +00:00
test SimplifyCFG: Do not transform PHI to select if doing so would be unsafe 2013-06-03 20:43:12 +00:00
tools Remove dead code. 2013-06-03 19:42:57 +00:00
unittests Try to avoid "integer literal too big" warnings from older GCCs. 2013-06-01 22:29:41 +00:00
utils Make SubRegIndex size mandatory, following r183020. 2013-05-31 23:45:26 +00:00
.arcconfig Add .arcconfig to the repository. Useful if someone wants to use phabricator's command line tool. 2012-12-01 12:07:58 +00:00
.gitignore Add extra vim swap file pattern 2012-10-09 23:48:34 +00:00
CMakeLists.txt Allow duplicates in LLVM_TARGETS_TO_BUILD and LLVM_EXPERIMENTAL_TARGETS_TO_BUILD. 2013-05-22 02:45:28 +00:00
CODE_OWNERS.TXT Add myself as SystemZ code owner 2013-05-08 14:41:29 +00:00
configure Make R600 non-experimental. 2013-05-22 00:35:47 +00:00
CREDITS.TXT Test commit. 2013-05-09 12:32:36 +00:00
LICENSE.TXT Be more specific and capitalize filenames. 2013-05-21 21:22:34 +00:00
llvm.spec.in Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile Improved svn repo searching for 'make update' 2013-01-28 03:19:57 +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 Add basic zlib support to LLVM. This would allow to use compression/uncompression in selected LLVM tools. 2013-04-23 08:28:39 +00:00
Makefile.rules Remove redundant rpath. 2013-05-23 02:53:22 +00:00
README.txt test 2013-04-17 05:34:03 +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.