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Simon Pilgrim a5b4b79bb8 [TTI] Reduction costs only need to include a single extract element cost 
We were adding the entire scalarization extraction cost for reductions, which returns the total cost of extracting every element of a vector type.

For reductions we don't need to do this - we just need to extract the 0'th element after the reduction pattern has completed.

Fixes PR37731

Differential Revision: https://reviews.llvm.org/D54585

llvm-svn: 346970
2018-11-15 17:42:53 +00:00
benchmarks Pull google/benchmark library to the LLVM tree 2018-08-28 09:42:41 +00:00
bindings [bindings/go] Add Go bindings to LLVMGetIndices 2018-11-08 04:04:04 +00:00
cmake Fix DragonFlyBSD linkage issue. 2018-11-10 18:47:00 +00:00
docs Mark @llvm.trap cold 2018-11-14 19:53:41 +00:00
examples Add bracket that was lost in rL346727 and has been causing buildbot failures for some time. 2018-11-13 11:28:46 +00:00
include [TTI] Reduction costs only need to include a single extract element cost 2018-11-15 17:42:53 +00:00
lib [InstCombine] fix rotate narrowing bug for non-pow-2 types 2018-11-15 17:19:14 +00:00
projects [cmake] Support moving debuginfo-tests to llvm/projects 2017-12-12 17:06:08 +00:00
resources
runtimes Revert "[CMake] Pass Clang defaults to runtimes builds" 2018-07-13 20:01:55 +00:00
test [TTI] Reduction costs only need to include a single extract element cost 2018-11-15 17:42:53 +00:00
tools [llvm-objdump] Use auto declaration in typecasting 2018-11-15 11:51:13 +00:00
unittests [Support] Teach YAMLIO about polymorphic types 2018-11-14 19:39:59 +00:00
utils Mark @llvm.trap cold 2018-11-14 19:53:41 +00:00
.arcconfig [llvm] Set up .arcconfig to point to Diffusion L repository 2018-01-12 15:37:41 +00:00
.clang-format
.clang-tidy
.gitattributes [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
.gitignore [git/svn] Ignore Visual Studio's CMakeSettings.json. 2018-10-29 14:51:02 +00:00
CMakeLists.txt Revert "Reorder FindPythonInterp so that config-ix can use PYTHON_EXECUTABLE" 2018-11-08 01:10:24 +00:00
CODE_OWNERS.TXT Add owner for llvm-objcopy 2018-08-09 22:05:19 +00:00
configure
CREDITS.TXT It's a test commit, which is my first commit and also add my name to CREDITS.TXT 2018-11-06 03:07:03 +00:00
LICENSE.TXT Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
llvm.spec.in
LLVMBuild.txt
README.txt Test commit. 2018-09-22 01:01:03 +00:00
RELEASE_TESTERS.TXT Adding Yvan as release test backup for Diana 2018-11-08 11:51:27 +00:00

README.txt 

The LLVM Compiler Infrastructure
================================

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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