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LLVM backend for 6502
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Chandler Carruth cea60aff34 Now that mem2reg understands how to cope with a slightly wider set of 
uses of an alloca, we can pre-compute promotability while analyzing an
alloca for splitting in SROA. That lets us short-circuit the common case
of a bunch of trivially promotable allocas. This cuts 20% to 30% off the
run time of SROA for typical frontend-generated IR sequneces I'm seeing.
It gets the new SROA to within 20% of ScalarRepl for such code. My
current benchmark for these numbers is PR15412, but it fits the general
pattern of IR emitted by Clang so it should be widely applicable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187323 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-28 08:27:12 +00:00
autoconf Remove dead or useless header checks from cmake and autoconf 2013-07-26 16:54:23 +00:00
bindings
cmake Re-enabling some more MSVC warnings; all of these compile cleanly with no further changes required. 2013-07-27 20:20:28 +00:00
docs Use pipefail when available. 2013-07-26 22:32:58 +00:00
examples
include Thread DataLayout through the callers and into mem2reg. This will be 2013-07-28 06:43:11 +00:00
lib Now that mem2reg understands how to cope with a slightly wider set of 2013-07-28 08:27:12 +00:00
projects [PowerPC] Support powerpc64le as a syntax-checking target. 2013-07-26 01:35:43 +00:00
runtime Remove dead code from the makefile build system. 2013-07-25 20:25:31 +00:00
test DwarfDebug: MD5 is always little endian, bswap on big endian platforms. 2013-07-27 14:14:43 +00:00
tools SimplifyCFG: Use parallel-and and parallel-or mode to consolidate branch conditions 2013-07-27 00:01:07 +00:00
unittests [APFloat] Make all arithmetic operations with NaN produce positive NaNs. 2013-07-27 21:49:25 +00:00
utils Move the default back to pipefail. I accidentally reverted it before. 2013-07-26 23:22:43 +00:00
.arcconfig
.gitignore
CMakeLists.txt
CODE_OWNERS.TXT
configure Regenerate. 2013-07-26 17:13:47 +00:00
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in
Makefile.rules Remove dead code from the makefile build system. 2013-07-25 20:25:31 +00:00
README.txt

README.txt 

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