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Mirror of https://github.com/RPCS3/llvm-mirror
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Jakob Stoklund Olesen 3d0157ae7e Disable physical register coalescing when the number of live ranges for the 
physreg becomes ridiculously high.

std::upper_bound may be log(N), but for sufficiently large live intervals, it
becomes log(N)*cachemiss = a long long time.

This patch improves coalescer time by 4500x for a function with 20000
function calls. The generated code is different, but not significantly worse -
the allocator hints are almost as good as physreg coalescing anyway.

llvm-svn: 98023
2010-03-09 00:59:48 +00:00
autoconf Move the docsdir to /usr/share/doc/llvm to match other projects. 2010-03-02 05:17:21 +00:00
bindings Add OCaml tutorial to the examples. 2010-03-08 19:32:27 +00:00
cmake Update CMake LibDeps 2010-01-22 18:14:14 +00:00
docs Start using DIFile. See updated SourceLevelDebugging.html for more information. 2010-03-09 00:44:10 +00:00
examples Don't always run the ocaml kaleidoscope tutorials. 2010-03-08 20:07:32 +00:00
include Start using DIFile. See updated SourceLevelDebugging.html for more information. 2010-03-09 00:44:10 +00:00
lib Disable physical register coalescing when the number of live ranges for the 2010-03-09 00:59:48 +00:00
projects Testing subversion commit access 2010-02-23 15:11:17 +00:00
runtime disable this for mingw as well, we really need a 'has no dynamic linking' predicate. 2010-03-06 18:54:37 +00:00
test Start using DIFile. See updated SourceLevelDebugging.html for more information. 2010-03-09 00:44:10 +00:00
tools Make it not an error to specify -O* options several times. 2010-03-05 04:46:39 +00:00
unittests Stop leaking MDStrings. 2010-03-04 23:24:19 +00:00
utils Revert r97726 and r97728 at ddunbar's request; we want to solve this 2010-03-08 20:02:05 +00:00
website
build-for-llvm-top.sh
CMakeLists.txt Adding MBlaze to cmake target list. 2010-03-05 15:15:55 +00:00
configure Move the docsdir to /usr/share/doc/llvm to match other projects. 2010-03-02 05:17:21 +00:00
CREDITS.TXT Adding the MicroBlaze backend. 2010-02-23 19:15:24 +00:00
LICENSE.TXT
llvm.spec.in
Makefile Try r96559 for the third time. This time the shared library is only built if 2010-02-25 06:34:33 +00:00
Makefile.common
Makefile.config.in Rewrite makefiles to explicitly reference DESTDIR to fix bug 3153. 2010-03-04 20:56:19 +00:00
Makefile.rules Rewrite makefiles to explicitly reference DESTDIR to fix bug 3153. 2010-03-04 20:56:19 +00:00
ModuleInfo.txt
README.txt Give packagers some advice about how to build LLVM so it's useful to 2010-02-26 00:54:42 +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.