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Old fork of llvm-mirror, used on older RPCS3 builds
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Jakob Stoklund Olesen 351c8818f2 Handle <undef> operands in TwoAddressInstructionPass. 
When the source register to a 2-addr instruction is undefined, there is
no need to attempt any transformations - simply replace the source
register with the destination register.

This also comes up when lowering IMPLICIT_DEF instructions - make sure
the <undef> flag is moved to the new partial register def operand:

  %vreg8<def> = INSERT_SUBREG %vreg9<undef>, %vreg0<kill>, sub_16bit
rewrite undef:
  %vreg8<def> = INSERT_SUBREG %vreg8<undef>, %vreg0<kill>, sub_16bit
convert to:
  %vreg8:sub_16bit<def,read-undef> = COPY %vreg0<kill>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159120 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-25 03:27:12 +00:00
autoconf Remove the PTX back-end and all of its artifacts (triple, etc.) 2012-05-24 21:38:21 +00:00
bindings [python] Add negative MemoryBuffer testcase 2012-03-22 11:23:52 +00:00
cmake LLVMProcessSources.cmake: [MSVC] Don't add "PROPERTIES HEADER_FILE_ONLY" to *.def. 2012-06-24 03:50:58 +00:00
docs Extend the IL for selecting TLS models (PR9788) 2012-06-23 11:37:03 +00:00
examples Remove trailing whitespaces 2012-06-21 22:26:01 +00:00
include Allow controlling vectorization of boolean values separately from other integer types. 2012-06-24 13:28:01 +00:00
lib Handle <undef> operands in TwoAddressInstructionPass. 2012-06-25 03:27:12 +00:00
projects Add mipsel-* to the list of targets recognized by configure script. 2012-06-18 19:06:25 +00:00
runtime Free the allocated filename. Found by clang static analyzer. 2012-06-15 09:11:47 +00:00
test %RCX is not a function live-out in eh.return functions. 2012-06-24 15:53:01 +00:00
tools Rename fp-op fusion option (yet again) for compatibility with GCC option. 2012-06-22 22:31:00 +00:00
unittests unittests/Support/Path.cpp: [Win32] Suppress FileSystemTest.FileMapping for now. 2012-06-24 03:48:40 +00:00
utils TableGen: AsmMatcher support for better operand diagnostics. 2012-06-22 23:56:44 +00:00
.gitignore Add tools/lld to .gitignore. 2012-05-02 21:25:32 +00:00
CMakeLists.txt New test tool: obj2yaml 2012-06-19 18:02:35 +00:00
configure Remove the PTX back-end and all of its artifacts (triple, etc.) 2012-05-24 21:38:21 +00:00
CREDITS.TXT Alphabetize. 2012-06-19 23:47:58 +00:00
LICENSE.TXT Add YAML parser to Support. 2012-04-03 23:09:22 +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 Do not install llvm-config-host for cross-builds of clang. rdar://11317847 2012-05-09 00:07:02 +00:00
Makefile.common [docs] Remove unsupported references to ExtraSource variable. 2012-05-15 21:32:27 +00:00
Makefile.config.in - Added ExecutionEngine/MCJIT tests 2012-05-17 21:07:47 +00:00
Makefile.rules llvm-ld does not exist anymore, use llvm-link instead. 2012-05-23 20:34:19 +00:00
README.txt Testing commit access 2012-05-24 14:20:13 +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 HTML documentation provided in docs/index.html for further
assistance with LLVM.

If you're writing a package for LLVM, see docs/Packaging.html for our
suggestions.