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LLVM backend for 6502
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f5497fb1b4
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Jakob Stoklund Olesen f5497fb1b4 Teach LiveInterval::isZeroLength about null SlotIndexes. 
When instructions are deleted, they leave tombstone SlotIndex entries.
The isZeroLength method should ignore these null indexes.

This causes RABasic to sometimes spill a callee-saved register in the
abi-isel.ll test, so don't run that test with -regalloc=basic.  Prioritizing
register allocation according to spill weight can cause more registers to be
used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131436 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16 23:50:05 +00:00
autoconf Re-add the autoconf rule for the docs/doxygen.cfg file. 2011-05-13 03:27:56 +00:00
bindings Fix compiling the ocaml kaleidoscope tutorials 2011-02-09 18:32:02 +00:00
cmake Handle gcc-compatible compilers (such as clang) the same way we handle 2011-05-11 13:53:08 +00:00
docs Fix errors in this llvm ir example. 2011-05-16 19:29:30 +00:00
examples Fix a ton of comment typos found by codespell. Patch by 2011-04-15 05:18:47 +00:00
include Teach LiveInterval::isZeroLength about null SlotIndexes. 2011-05-16 23:50:05 +00:00
lib Teach LiveInterval::isZeroLength about null SlotIndexes. 2011-05-16 23:50:05 +00:00
projects Fix a ton of comment typos found by codespell. Patch by 2011-04-15 05:18:47 +00:00
runtime The computation of string length is not that complicated. Fix it, again. :) 2011-05-05 23:52:18 +00:00
test Teach LiveInterval::isZeroLength about null SlotIndexes. 2011-05-16 23:50:05 +00:00
tools CMake builds gold by default since revision 127466. This is 2011-05-12 11:26:21 +00:00
unittests Handle gcc-compatible compilers (such as clang) the same way we handle 2011-05-11 13:53:08 +00:00
utils Downgrade a tablegen warning to an error. 2011-05-10 17:52:59 +00:00
website
.gitignore Cleanup and document .gitignore. 2010-12-17 17:22:50 +00:00
build-for-llvm-top.sh
CMakeLists.txt Rename profile_rt.so to libprofile_rt.so under configure+make (it already was 2011-04-29 02:12:06 +00:00
configure Re-add the autoconf rule for the docs/doxygen.cfg file. 2011-05-13 03:27:56 +00:00
CREDITS.TXT Another git svn dcommit test. This time let's hope it doesn't kill my repo. 2010-12-10 14:45:10 +00:00
LICENSE.TXT 2010 is upon us. 2010-01-09 18:40:31 +00:00
llvm.spec.in
Makefile build: Add support for a SHOW_DIAGNOSTICS build variable. 2011-04-11 22:37:39 +00:00
Makefile.common
Makefile.config.in autoconf: Add --disable-embed-stdcxx to suppress linking libstdc++.a into llvm.dll with --enable-shared on Cygming. 2010-12-29 03:59:14 +00:00
Makefile.rules Fix a ton of comment typos found by codespell. Patch by 2011-04-15 05:18:47 +00:00
ModuleInfo.txt Remove trailing space. This is just an excuse to poke the 2010-10-05 20:32:15 +00:00
README.txt reverting test commit 2011-05-12 17:38:08 +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,
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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
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If you're writing a package for LLVM, see docs/Packaging.html for our
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