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LLVM backend for 6502
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Nadav Rotem c653de6c0f A DAGCombine optimization for mergeing consecutive stores to memory. The optimization 
is not profitable in many cases because modern processors perform multiple stores
in parallel and merging stores prior to merging requires extra work. We handle two main cases:

1. Store of multiple consecutive constants:
  q->a = 3;
  q->4 = 5;
In this case we store a single legal wide integer.

2. Store of multiple consecutive loads:
  int a = p->a;
  int b = p->b;
  q->a = a;
  q->b = b;
In this case we load/store either ilegal vector registers or legal wide integer registers.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165125 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-03 16:11:15 +00:00
autoconf Re-enable support for --program-prefix. 2012-10-01 18:40:32 +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] Update File Headers section to cover doxygen style file level docs. 2012-10-01 19:59:21 +00:00
examples Move llvm/Support/IRBuilder.h -> llvm/IRBuilder.h 2012-06-29 12:38:19 +00:00
include Revert 165051-165049 while looking into the foreach.m failure in 2012-10-03 08:10:01 +00:00
lib A DAGCombine optimization for mergeing consecutive stores to memory. The optimization 2012-10-03 16:11:15 +00:00
projects Re-enable support for --program-prefix. 2012-10-01 18:40:32 +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 A DAGCombine optimization for mergeing consecutive stores to memory. The optimization 2012-10-03 16:11:15 +00:00
tools Clean-up of memory buffer and object ownership model in MCJIT 2012-10-02 21:18:39 +00:00
unittests Removing dependency on third party library for Intel JIT event support. 2012-09-28 17:35:20 +00:00
utils Fix 80-column violations. Cleanup whitespace in generated code. 2012-10-02 00:25:57 +00:00
.gitignore Ignore the documentation-suggested location for compile_commands.json 2012-08-21 19:23:30 +00:00
CMakeLists.txt Removing dependency on third party library for Intel JIT event support. 2012-09-28 17:35:20 +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 Re-enable support for --program-prefix. 2012-10-01 18:40:32 +00:00
CREDITS.TXT Add IRC handle. 2012-09-11 07:50:40 +00:00
LICENSE.TXT Add YAML parser to Support. 2012-04-03 23:09:22 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile Set the 'build clang only' flag when we're building only clang. 2012-10-02 20:32:23 +00:00
Makefile.common [docs] Remove unsupported references to ExtraSource variable. 2012-05-15 21:32:27 +00:00
Makefile.config.in Re-enable support for --program-prefix. 2012-10-01 18:40:32 +00:00
Makefile.rules Re-enable support for --program-prefix. 2012-10-01 18:40:32 +00:00
README.txt test commit 2012-07-11 17:34:12 +00:00

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