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Andrew Trick 6a51a7aea5 LSR: try not to blow up solving combinatorial problems brute force. 
This places limits on CollectSubexprs to constrains the number of
reassociation possibilities. It limits the recursion depth and skips
over chains of nested recurrences outside the current loop.

Fixes PR13361. Although underlying SCEV behavior is still potentially bad.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160340 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-17 05:00:56 +00:00
autoconf Revert "Build script changes for R600/SI Codegen v6" 2012-07-16 18:19:46 +00:00
bindings [python] Add negative MemoryBuffer testcase 2012-03-22 11:23:52 +00:00
cmake detabify 2012-07-12 13:18:13 +00:00
docs ReleaseNotes.html: add note about specifying TLS models 2012-07-13 12:44:23 +00:00
examples Move llvm/Support/IRBuilder.h -> llvm/IRBuilder.h 2012-06-29 12:38:19 +00:00
include TableGen: Allow conditional instruction pattern in multiclass. 2012-07-17 00:47:06 +00:00
lib LSR: try not to blow up solving combinatorial problems brute force. 2012-07-17 05:00:56 +00:00
projects Revert "Build script changes for R600/SI Codegen v6" 2012-07-16 18:19:46 +00:00
runtime Free the allocated filename. Found by clang static analyzer. 2012-06-15 09:11:47 +00:00
test Fix function select_cc_f32 in test/CodeGen/Mips/selectcc.ll. 2012-07-16 23:56:51 +00:00
tools Target option DisableJumpTables is a gross hack. Move it to TargetLowering instead. 2012-07-02 22:39:56 +00:00
unittests teach ConstantRange that zero times X is always zero 2012-07-16 20:47:16 +00:00
utils TableGen: Allow conditional instruction pattern in multiclass. 2012-07-17 00:47:06 +00:00
.gitignore Add tools/lld to .gitignore. 2012-05-02 21:25:32 +00:00
CMakeLists.txt Revert "Build script changes for R600/SI Codegen v6" 2012-07-16 18:19:46 +00:00
configure Revert "Build script changes for R600/SI Codegen v6" 2012-07-16 18:19:46 +00:00
CREDITS.TXT Alphabetize. 2012-06-19 23:47:58 +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 [docs] Remove unsupported references to ExtraSource variable. 2012-05-15 21:32:27 +00:00
Makefile.config.in Remove autoconf support for runtest and tclsh, some of the last vestigal 2012-06-27 23:53:41 +00:00
Makefile.rules Remove 'check-dg', a wrapper around 'check-local-dg' which was just 2012-06-28 00:03:13 +00:00
README.txt test commit 2012-07-11 17:34:12 +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.