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LLVM backend for 6502
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e773e8c3e5
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Chandler Carruth e773e8c3e5 Add a somewhat hacky heuristic to do something different from whole-loop 
rotation. When there is a loop backedge which is an unconditional
branch, we will end up with a branch somewhere no matter what. Try
placing this backedge in a fallthrough position above the loop header as
that will definitely remove at least one branch from the loop iteration,
where whole loop rotation may not.

I haven't seen any benchmarks where this is important but loop-blocks.ll
tests for it, and so this will be covered when I flip the default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154812 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-16 13:33:36 +00:00
autoconf add configure flag --with-default-sysroot 2012-04-16 04:11:45 +00:00
bindings
cmake
docs Documentation fixes to LLVMBuild.html [PR 11563] 2012-04-16 08:42:55 +00:00
examples
include Add convenience methods to MDBuilder for attaching metadata to instructions, 2012-04-16 13:21:26 +00:00
lib Add a somewhat hacky heuristic to do something different from whole-loop 2012-04-16 13:33:36 +00:00
projects Fix a problem in the target detection for Debian GNU/HURD 2012-04-05 19:34:15 +00:00
runtime Use the correct filename for the error message. 2012-03-28 02:39:06 +00:00
test Add a somewhat hacky heuristic to do something different from whole-loop 2012-04-16 13:33:36 +00:00
tools Add -disassemble support for -show-inst and -show-encode capability llvm-mc. Also refactor so all MC paraphernalia are created once for all uses as much as possible. 2012-04-16 11:32:10 +00:00
unittests Add the MDBuilder helper class for conveniently creating metadata. 2012-04-15 18:03:49 +00:00
utils Remove old code to strip out unwanted PPC slices for Apple llvmCore. 2012-04-13 22:58:53 +00:00
.gitignore
CMakeLists.txt Add YAML parser to Support. 2012-04-03 23:09:22 +00:00
configure add configure flag --with-default-sysroot 2012-04-16 04:11:45 +00:00
CREDITS.TXT Add credit and release notes for r150307. By Kai Nacke. 2012-04-16 05:24:52 +00:00
LICENSE.TXT Add YAML parser to Support. 2012-04-03 23:09:22 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in
Makefile.rules Fix the build under Debian GNU/Hurd. 2012-04-11 15:35:36 +00:00
README.txt

README.txt 

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