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bb819edc1f
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James Molloy bb819edc1f [LoopVectorizer] Limit unroll factor in the presence of nested reductions. 
If we have a scalar reduction, we can increase the critical path length if the loop we're unrolling is inside another loop. Limit, by default to 2, so the critical path only gets increased by one reduction operation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216140 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-20 23:53:52 +00:00
autoconf Delete support for AuroraUX. 2014-08-14 15:15:09 +00:00
bindings [OCaml] Expose Llvm.get_operand_use. 2014-08-12 02:55:45 +00:00
cmake Disabling an MSVC warning ('var' : definition from the for loop is ignored; the definition from the enclosing scope is used) which will trigger false positives more than true positives. 2014-08-18 14:54:22 +00:00
docs Add note to LangRef about how function arguments can be unnamed and 2014-08-20 15:06:30 +00:00
examples Make it explicit that ExecutionEngine takes ownership of the modules. 2014-08-19 04:04:25 +00:00
include Add isInsertSubreg property. 2014-08-20 23:49:36 +00:00
lib [LoopVectorizer] Limit unroll factor in the presence of nested reductions. 2014-08-20 23:53:52 +00:00
projects [cmake] Use the external project machinery for libcxxabi so that it can 2014-07-25 10:27:40 +00:00
test Lower thumbv4t & thumbv5 lo->lo copies through a push-pop sequence 2014-08-20 23:38:50 +00:00
tools Quick fix for an use after free. 2014-08-20 15:19:37 +00:00
unittests BumpPtrAllocator: don't accept 0 for the alignment parameter 2014-08-19 23:35:33 +00:00
utils Add isInsertSubreg property. 2014-08-20 23:49:36 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format
.gitignore Add Polly to the ignored trees. 2014-06-25 13:13:36 +00:00
CMakeLists.txt Fix building with in-tree libc++abi on FreeBSD 2014-08-01 19:23:15 +00:00
CODE_OWNERS.TXT Add a sentence that all entries should include an email address. 2014-08-04 19:33:25 +00:00
configure Delete support for AuroraUX. 2014-08-14 15:15:09 +00:00
CREDITS.TXT Test commit access 2014-08-09 16:05:23 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in Track clang r213171 2014-07-16 16:50:34 +00:00
Makefile.rules Delete support for AuroraUX. 2014-08-14 15:15:09 +00:00
README.txt Trivial test commit. 2014-04-26 19:05:45 +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
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Please see the documentation provided in docs/ for further
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If you're writing a package for LLVM, see docs/Packaging.rst for our
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