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eb653bd9d1
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Jingyue Wu eb653bd9d1 [NVPTX] run LSR before straight-line optimizations 
Summary:
Straight-line optimizations can simplify the loop body and make LSR's
cost analysis more precise. This significantly improves several Eigen3
CUDA benchmarks.

With this change, EigenContractionKernel runs up to 40% faster
(753ceee5f2/unsupported/Eigen/CXX11/src/Tensor/TensorContractionCuda.h (cl-502)).
EigenConvolutionKernel2D runs up to 10% faster
(753ceee5f2/unsupported/Eigen/CXX11/src/Tensor/TensorConvolution.h (cl-605)).

I have some difficulties writing small tests that benefit from this
reordering due to a seemingly issue with LSR (being discussed at
http://lists.cs.uiuc.edu/pipermail/llvmdev/2015-July/088244.html).

See the review thread for the compilation time impact of GVN. 

Reviewers: eliben, jholewinski

Subscribers: llvm-commits, jholewinski

Differential Revision: http://reviews.llvm.org/D11304

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242982 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-23 04:59:07 +00:00
autoconf Update the trunk version to 3.8.0svn. 2015-07-14 22:35:57 +00:00
bindings Revert "Update LLVM bindings after r239940. ..." 2015-07-16 01:16:39 +00:00
cmake [CMake] Projects supported via LLVM_EXTERNAL_*_SOURCE_DIR need to be explicitly specified. 2015-07-21 15:53:09 +00:00
docs Remove oversight group. Replace with LLVM Foundation Board of Directors. 2015-07-21 20:14:20 +00:00
examples Fix Kaleidoscope tuto: ExecutionEngine->getDataLayout() returns a ref 2015-07-16 16:47:18 +00:00
include Refactor duplicated code and check for invalid symbol table size. 2015-07-23 03:24:22 +00:00
lib [NVPTX] run LSR before straight-line optimizations 2015-07-23 04:59:07 +00:00
projects build: make libunwind a proper project 2015-04-25 01:47:39 +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 Refactor duplicated code and check for invalid symbol table size. 2015-07-23 03:24:22 +00:00
tools [dsymutil] Check archive members timestamps. 2015-07-22 23:24:00 +00:00
unittests [PM/AA] Extract the ModRef enums from the AliasAnalysis class in 2015-07-22 23:15:57 +00:00
utils [PM/AA] Extract the ModRef enums from the AliasAnalysis class in 2015-07-22 23:15:57 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore Minor updates to gitignore so that symlinks are ignored in the projects dir. 2015-07-07 20:24:58 +00:00
CMakeLists.txt Update the trunk version to 3.8.0svn. 2015-07-14 22:35:57 +00:00
CODE_OWNERS.TXT [WebAssembly] Initial WebAssembly backend 2015-06-29 23:51:55 +00:00
configure Update the trunk version to 3.8.0svn. 2015-07-14 22:35:57 +00:00
CREDITS.TXT [WebAssembly] Initial WebAssembly backend 2015-06-29 23:51:55 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in Disallow in-source builds (as we already do for the cmake build). 2015-07-01 18:09:21 +00:00
Makefile.rules
README.txt

README.txt 

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