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LLVM backend for 6502
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Arnold Schwaighofer 2537f3c659 X86 cost model: Differentiate cost for vector shifts of constants 
SSE2 has efficient support for shifts by a scalar. My previous change of making
shifts expensive did not take this into account marking all shifts as expensive.
This would prevent vectorization from happening where it is actually beneficial.

With this change we differentiate between shifts of constants and other shifts.

radar://13576547

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178808 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-04 23:26:24 +00:00
autoconf Refine fenv.h handling: check if the desired macros exist, before using 2013-03-25 13:13:33 +00:00
bindings [python] Add markup option to disassembler 2012-12-01 21:57:30 +00:00
cmake Add CMake option LLVM_USE_SANITIZER={Address,Memory,MemoryWithOrigins} to simplify bootstrap of LLVM/Clang under ASan/MSan 2013-03-26 07:49:46 +00:00
docs Missing word 2013-04-04 18:29:19 +00:00
examples Update links to "Itanium C++ ABI: Exception Handling" document 2013-01-13 15:53:09 +00:00
include CostModel: Add parameter to instruction cost to further classify operand values 2013-04-04 23:26:21 +00:00
lib X86 cost model: Differentiate cost for vector shifts of constants 2013-04-04 23:26:24 +00:00
projects Print a warning message if compiler-rt can't be built because of old CMake version to make this requirement more visible to users 2013-03-05 14:43:07 +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 X86 cost model: Differentiate cost for vector shifts of constants 2013-04-04 23:26:24 +00:00
tools Don't export symbols in every binary on linux. 2013-04-04 01:01:32 +00:00
unittests Explicitly add -Wl,--export-all-symbols on mingw/cygwin. 2013-04-04 01:19:55 +00:00
utils Add back parsing of header charactestics. 2013-04-04 20:30:52 +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 Don't export symbols in every binary on linux. 2013-04-04 01:01:32 +00:00
CODE_OWNERS.TXT Update 2013-03-18 17:47:33 +00:00
configure Refine fenv.h handling: check if the desired macros exist, before using 2013-03-25 13:13:33 +00:00
CREDITS.TXT Update 2013-03-18 17:47:33 +00:00
LICENSE.TXT Add LICENSE.TXT covering contributions made by ARM. 2013-01-07 10:04:49 +00:00
llvm.spec.in
LLVMBuild.txt
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 Turn anonymous type in anonymous union warning back on after cleaning up 2013-03-15 00:43:00 +00:00
Makefile.rules Turn anonymous type in anonymous union warning back on after cleaning up 2013-03-15 00:43:00 +00:00
README.txt Revert "Test commit" 2013-02-22 19:19:41 +00:00

README.txt 

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