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Old fork of llvm-mirror, used on older RPCS3 builds
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09dcb16d13
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Michael Zolotukhin 09dcb16d13 Don't recompute LCSSA after loop-unrolling when possible. 
Summary:
Currently we always recompute LCSSA for outer loops after unrolling an
inner loop. That leads to compile time problem when we have big loop
nests, and we can solve it by avoiding unnecessary work. For instance,
if w eonly do partial unrolling, we don't break LCSSA, so we don't need
to rebuild it. Also, if all exits from the inner loop are inside the
enclosing loop, then complete unrolling won't break LCSSA either.

I replaced unconditional LCSSA recomputation with conditional recomputation +
unconditional assert and added several tests, which were failing when I
experimented with it.

Soon I plan to follow up with a similar patch for recalculation of dominators
tree.

Reviewers: hfinkel, dexonsmith, bogner, joker.eph, chandlerc

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D14526

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253126 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-14 05:51:41 +00:00
autoconf Add AVR backend skeleton 2015-11-12 09:26:44 +00:00
bindings Fix llvm-config to adapt to the install environment. 2015-11-09 23:15:38 +00:00
cmake LLVM_ENABLE_MODULES: No need to set -fcxx-modules in trunk, just -fmodules. 2015-11-13 01:26:31 +00:00
docs [Docs] Fix warning "Title underline too short." 2015-11-13 21:09:57 +00:00
examples examples: Remove implicit ilist iterator conversions, NFC 2015-11-07 00:55:46 +00:00
include [MCTargetAsmParser] Move the member varialbes that reference 2015-11-14 05:20:05 +00:00
lib Don't recompute LCSSA after loop-unrolling when possible. 2015-11-14 05:51:41 +00:00
projects [CMake] Disable adding the test suite as a projects subdirectory 2015-10-28 18:36:56 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
test Don't recompute LCSSA after loop-unrolling when possible. 2015-11-14 05:51:41 +00:00
tools [llvm-profdata] Add check for text profile formats and improve error reporting (2nd try) 2015-11-13 03:47:58 +00:00
unittests ADT: Avoid relying on UB in ilist_node::getNextNode() 2015-11-11 02:26:42 +00:00
utils [MCTargetAsmParser] Move the member varialbes that reference 2015-11-14 05:20:05 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy Enable display of compiler diagnostics in clang-tidy by default. 2014-10-29 17:29:38 +00:00
.gitignore Minor updates to gitignore so that symlinks are ignored in the projects dir. 2015-07-07 20:24:58 +00:00
CMakeLists.txt [CMake] Add support for building the llvm test-suite as part of an LLVM build using clang and lld 2015-11-11 16:14:03 +00:00
CODE_OWNERS.TXT Add myself as the the code owner for the AVR backend 2015-10-28 00:24:54 +00:00
configure Add AVR backend skeleton 2015-11-12 09:26:44 +00:00
CREDITS.TXT [WebAssembly] Initial WebAssembly backend 2015-06-29 23:51:55 +00:00
LICENSE.TXT Update for a new year. 2015-03-12 01:25:29 +00:00
llvm.spec.in [Sparc] Implement i64 load/store support for 32-bit sparc. 2015-08-10 19:11:39 +00:00
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile [configure/make] Propagate names of build host tools when making BuildTools 2014-03-25 21:45:41 +00:00
Makefile.common Makefile.common: Update a description, s/Source/SOURCES/ , according to MakefileGuide.html#control-variables . 2012-12-07 01:43:23 +00:00
Makefile.config.in We're actually -Wmissing-field-initializers clean thanks to the cmake 2015-08-07 16:44:47 +00:00
Makefile.rules Create Makefile variables for 'share' and 'libexec' 2015-11-09 16:10:00 +00:00
README.txt Test commit after password reset 2015-11-11 19:24:08 +00:00

README.txt 

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

This directory and its subdirectories contain source code for LLVM,
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
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Please see the documentation provided in docs/ for further
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If you are writing a package for LLVM, see docs/Packaging.rst for our
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