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LLVM backend for 6502
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Jakob Stoklund Olesen 352d352c02 Always normalize spill weights, also for intervals created by spilling. 
Moderate the weight given to very small intervals.

The spill weight given to new intervals created when spilling was not
normalized in the same way as the original spill weights calculated by
CalcSpillWeights. That meant that restored registers would tend to hang around
because they had a much higher spill weight that unspilled registers.

This improves the runtime of a few tests by up to 10%, and there are no
significant regressions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96613 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-18 21:33:05 +00:00
autoconf Roll back the shared library, r96559. It broke two darwins and arm, mysteriously. 2010-02-18 04:43:02 +00:00
bindings Fix some ocaml documentation 2010-02-16 03:45:17 +00:00
cmake Update CMake LibDeps 2010-01-22 18:14:14 +00:00
docs Clarify that ptrtoint+inttoptr are an alternative to GEP which are 2010-02-18 18:40:29 +00:00
examples Make Kaleidoscope not link against the interpreter, since that didn't 2010-02-11 19:15:20 +00:00
include Always normalize spill weights, also for intervals created by spilling. 2010-02-18 21:33:05 +00:00
lib Always normalize spill weights, also for intervals created by spilling. 2010-02-18 21:33:05 +00:00
projects CMake: Fixed syntax in conditional. 2010-02-15 15:17:05 +00:00
runtime remove the random sampling framework, which is not maintained anymore. 2010-01-02 20:07:03 +00:00
test Always normalize spill weights, also for intervals created by spilling. 2010-02-18 21:33:05 +00:00
tools Uniformize the way these options are printed. Requested by 2010-02-18 14:37:52 +00:00
unittests Roll back the shared library, r96559. It broke two darwins and arm, mysteriously. 2010-02-18 04:43:02 +00:00
utils start sketching out the structure of code for result emission generation. 2010-02-18 06:47:49 +00:00
website Prepare for "core" website. 2007-08-03 05:43:35 +00:00
Xcode Remove the IA-64 backend. 2009-07-24 00:30:09 +00:00
build-for-llvm-top.sh Patch to build llvm with srcdir != objdir from 2009-01-23 08:42:38 +00:00
CMakeLists.txt CMake: Add MCParser directory. 2010-01-22 02:04:33 +00:00
configure Roll back the shared library, r96559. It broke two darwins and arm, mysteriously. 2010-02-18 04:43:02 +00:00
CREDITS.TXT Add myself to the blame list. 2009-08-20 15:20:15 +00:00
LICENSE.TXT 2010 is upon us. 2010-01-09 18:40:31 +00:00
llvm.spec.in * llvm.spec.in: update blurb 2007-07-13 09:48:29 +00:00
Makefile Roll back the shared library, r96559. It broke two darwins and arm, mysteriously. 2010-02-18 04:43:02 +00:00
Makefile.common Removed trailing whitespace from Makefiles. 2009-01-09 16:44:42 +00:00
Makefile.config.in Roll back the shared library, r96559. It broke two darwins and arm, mysteriously. 2010-02-18 04:43:02 +00:00
Makefile.rules Roll back the shared library, r96559. It broke two darwins and arm, mysteriously. 2010-02-18 04:43:02 +00:00
ModuleInfo.txt Patch to build llvm with srcdir != objdir from 2009-01-23 08:42:38 +00:00
README.txt Trim trailing spaces (aka, trigger rebuild). 2010-02-13 22:23:47 +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.