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LLVM backend for 6502
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Jakob Stoklund Olesen b81cbc271f Compute topological signatures of registers. 
TableGen creates new register classes and sub-register indices based on
the sub-register structure present in the register bank. So far, it has
been doing that on a per-register basis, but that is not very efficient.

This patch teaches TableGen to compute topological signatures for
registers, and use that to reduce the amount of redundant computation.
Registers get the same TopoSig if they have identical sub-register
structure.

TopoSigs are not currently exposed outside TableGen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156761 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-14 15:10:07 +00:00
autoconf Revert r156393, "[tests] Remove some remaining DejaGNU related cruft.", this 2012-05-08 18:26:07 +00:00
bindings [python] Add negative MemoryBuffer testcase 2012-03-22 11:23:52 +00:00
cmake Adding -fcolor-diagnostics is causing problem to users that parse the build 2012-05-08 18:11:06 +00:00
docs Formatting changes. Remove the '...' placeholders. 2012-05-14 08:11:53 +00:00
examples Remove llvm-ld and llvm-stub (which is only used by llvm-ld). 2012-04-19 19:27:54 +00:00
include Add BitVector::anyCommon(). 2012-05-14 15:01:19 +00:00
lib SwitchInst cosmetics: renamed "Hash" method to "hash" 2012-05-14 08:26:31 +00:00
projects Update all outdated autoconf files in the sample project. 2012-05-05 15:02:39 +00:00
runtime Switch to c-style comments in a C file. 2012-04-27 19:30:29 +00:00
test Add support for the .rept directive. Patch by Vladmir Sorokin. I added support 2012-05-12 16:31:10 +00:00
tools Fix a use after free when the streamer is destroyed. Fixes pr12622. 2012-05-11 03:42:13 +00:00
unittests Add BitVector::anyCommon(). 2012-05-14 15:01:19 +00:00
utils Compute topological signatures of registers. 2012-05-14 15:10:07 +00:00
.gitignore Add tools/lld to .gitignore. 2012-05-02 21:25:32 +00:00
CMakeLists.txt Make it possible to switch off solution folders. VS Express does not support 2012-05-09 15:10:54 +00:00
configure Revert r156393, "[tests] Remove some remaining DejaGNU related cruft.", this 2012-05-08 18:26:07 +00:00
CREDITS.TXT Update the documentation of CellSPU, in case it gets removed in 3.1. 2012-04-29 20:00:55 +00:00
LICENSE.TXT Add YAML parser to Support. 2012-04-03 23:09:22 +00:00
llvm.spec.in Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile Do not install llvm-config-host for cross-builds of clang. rdar://11317847 2012-05-09 00:07:02 +00:00
Makefile.common
Makefile.config.in Make IntelJITEvents and OProfileJIT as optional libraries and add 2012-05-07 19:38:40 +00:00
Makefile.rules Make IntelJITEvents and OProfileJIT as optional libraries and add 2012-05-07 19:38:40 +00:00
README.txt test commit 2012-03-20 13:12:38 +00:00

README.txt 

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

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the HTML documentation provided in docs/index.html for further
assistance with LLVM.

If you're writing a package for LLVM, see docs/Packaging.html for our
suggestions.