LLVM backend for 6502
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Hal Finkel 64e1b28643 Allow BBVectorize to form non-2^n-length vectors.
The original algorithm only used recursive pair fusion of equal-length
types. This is now extended to allow pairing of any types that share
the same underlying scalar type. Because we would still generally
prefer the 2^n-length types, those are formed first. Then a second
set of iterations form the non-2^n-length types.

Also, a call to SimplifyInstructionsInBlock has been added after each
pairing iteration. This takes care of DCE (and a few other things)
that make the following iterations execute somewhat faster. For the
same reason, some of the simple shuffle-combination cases are now
handled internally.

There is some additional refactoring work to be done, but I've had
many requests for this feature, so additional refactoring will come
soon in future commits (as will additional test cases).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159330 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 05:42:42 +00:00
autoconf Remove autoconf support for runtest and tclsh, some of the last vestigal 2012-06-27 23:53:41 +00:00
bindings
cmake LLVMProcessSources.cmake: [MSVC] Don't add "PROPERTIES HEADER_FILE_ONLY" to *.def. 2012-06-24 03:50:58 +00:00
docs Sphinxify the exception handling doc. 2012-06-27 07:20:57 +00:00
examples Remove trailing whitespaces 2012-06-21 22:26:01 +00:00
include Allow BBVectorize to form non-2^n-length vectors. 2012-06-28 05:42:42 +00:00
lib Allow BBVectorize to form non-2^n-length vectors. 2012-06-28 05:42:42 +00:00
projects Remove 'check-dg', a wrapper around 'check-local-dg' which was just 2012-06-28 00:03:13 +00:00
runtime
test Allow BBVectorize to form non-2^n-length vectors. 2012-06-28 05:42:42 +00:00
tools Move lib/Analysis/DebugInfo.cpp to lib/VMCore/DebugInfo.cpp and 2012-06-28 00:05:13 +00:00
unittests fix a off-by-one bug in intersectWith(), and add a bunch of tests 2012-06-28 00:59:33 +00:00
utils Silence unused variable warning. 2012-06-28 00:41:11 +00:00
.gitignore
CMakeLists.txt New test tool: obj2yaml 2012-06-19 18:02:35 +00:00
configure
CREDITS.TXT Alphabetize. 2012-06-19 23:47:58 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile
Makefile.common
Makefile.config.in Remove autoconf support for runtest and tclsh, some of the last vestigal 2012-06-27 23:53:41 +00:00
Makefile.rules Remove 'check-dg', a wrapper around 'check-local-dg' which was just 2012-06-28 00:03:13 +00:00
README.txt

Low Level Virtual Machine (LLVM)
================================

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