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LLVM backend for 6502
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Hans Wennborg d72271cd84 SimplifyCFG: Make the switch-to-lookup table transformation store the 
tables in bitmaps when they fit in a target-legal register.

This saves some space, and it also allows for building tables that would
otherwise be deemed too sparse.

One interesting case that this hits is example 7 from
http://blog.regehr.org/archives/320. We currently generate good code
for this when lowering the switch to the selection DAG: we build a
bitmask to decide whether to jump to one block or the other. My patch
will result in the same bitmask, but it removes the need for the jump,
as the return value can just be retrieved from the mask.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164684 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-26 09:44:49 +00:00
autoconf Revert "Add --program-prefix support to build" 2012-09-26 00:01:00 +00:00
bindings add support for ocaml 3.12 2012-09-02 14:42:56 +00:00
cmake CMake toolchain file for Android NDK. 2012-09-11 11:54:27 +00:00
docs docs: Sphinxify HowToSubmitABug 2012-09-25 20:52:04 +00:00
examples Move llvm/Support/IRBuilder.h -> llvm/IRBuilder.h 2012-06-29 12:38:19 +00:00
include Revert r164663 due to buildbot failure. 2012-09-26 07:43:06 +00:00
lib SimplifyCFG: Make the switch-to-lookup table transformation store the 2012-09-26 09:44:49 +00:00
projects Revert "Add --program-prefix support to build" 2012-09-26 00:01:00 +00:00
runtime libprofile: [CMake] Let libprofile_rt be not loadable_module but shared library. Autoconf's one does so. 2012-08-29 00:37:51 +00:00
test SimplifyCFG: Make the switch-to-lookup table transformation store the 2012-09-26 09:44:49 +00:00
tools Revert "Add --program-prefix support to build" 2012-09-26 00:01:00 +00:00
unittests Expansions for u/srem, using the udiv expansion. More unit tests for udiv and u/srem. 2012-09-26 01:55:01 +00:00
utils Rather then have a wrapper function, have tblgen instantiate the implementation. 2012-09-24 22:57:55 +00:00
.gitignore Ignore the documentation-suggested location for compile_commands.json 2012-08-21 19:23:30 +00:00
CMakeLists.txt enable cross compilation with cmake 2012-08-20 19:56:52 +00:00
CODE_OWNERS.TXT Add the list of code owners to the top level of the LLVM source tree to 2012-07-26 08:04:09 +00:00
configure Revert "Add --program-prefix support to build" 2012-09-26 00:01:00 +00:00
CREDITS.TXT Add IRC handle. 2012-09-11 07:50:40 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile Clear UNIVERSAL_SDK_PATH setting when building host tools. <rdar://12360497> 2012-09-24 22:51:19 +00:00
Makefile.common [docs] Remove unsupported references to ExtraSource variable. 2012-05-15 21:32:27 +00:00
Makefile.config.in Revert "Add --program-prefix support to build" 2012-09-26 00:01:00 +00:00
Makefile.rules Revert "Add --program-prefix support to build" 2012-09-26 00:01:00 +00:00
README.txt test commit 2012-07-11 17:34:12 +00:00

README.txt 

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