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Roman Lebedev 610300535f [OpenMPOpt] Most SCC's are uninteresting, don't waste time on them (up to 16x faster)
Summary:
This seems obvious in hindsight, but the result is surprising.
I've measured compile-time of `-openmpopt` pass standalone
on RawSpeed unity build, and while there is some OpenMP stuff,
most is not OpenMP. But nonetheless the pass does a lot of costly
preparations before ever trying to look for OpenMP stuff in SCC.

Numbers (n=25): 0.094624s  ->  0.005976s, an -93.68% improvement, or ~16x

Reviewers: jdoerfert

Reviewed By: jdoerfert

Subscribers: yaxunl, hiraditya, guansong, llvm-commits, sstefan1

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D84689
2020-07-27 23:36:34 +03:00
benchmarks
bindings Fix go bindings after FixedVectorType -> VectorType change. 2020-05-15 16:37:57 -07:00
cmake [llvm-exegesis] Check perf_branch_entry for field cycles 2020-07-27 11:31:13 -04:00
docs [PowerPC] Remove QPX/A2Q BGQ/BGP CNK support 2020-07-27 19:24:39 +00:00
examples [llvm][examples][SimplifyCFG] Fix pass's IR changed reporting 2020-07-27 13:39:58 -06:00
include [OpenMPOpt] Most SCC's are uninteresting, don't waste time on them (up to 16x faster) 2020-07-27 23:36:34 +03:00
lib [OpenMPOpt] Most SCC's are uninteresting, don't waste time on them (up to 16x faster) 2020-07-27 23:36:34 +03:00
projects Add few docs and implementation of strcpy and strcat. 2019-10-04 17:30:54 +00:00
resources
runtimes [CMake] Bump CMake minimum version to 3.13.4 2020-07-22 14:25:07 -04:00
test [PowerPC] Remove QPX/A2Q BGQ/BGP CNK support 2020-07-27 19:24:39 +00:00
tools Use llvm::is_contained where appropriate (NFC) 2020-07-27 10:20:44 -07:00
unittests [PowerPC] Remove QPX/A2Q BGQ/BGP CNK support 2020-07-27 19:24:39 +00:00
utils [PowerPC] Remove QPX/A2Q BGQ/BGP CNK support 2020-07-27 19:24:39 +00:00
.clang-format
.clang-tidy - Update .clang-tidy to ignore parameters of main like functions for naming violations in clang and llvm directory 2020-01-31 16:49:45 +00:00
.gitattributes Fix the "git modified" issue on the preserve-comments-crlf.s. 2019-09-10 12:17:49 +00:00
.gitignore [clangd] Store index in '.cache/clangd/index' instead of '.clangd/index' 2020-07-07 14:53:45 +02:00
CMakeLists.txt [CMake] Bump CMake minimum version to 3.13.4 2020-07-22 14:25:07 -04:00
CODE_OWNERS.TXT Make myself code owner of InferAddressSpaces 2020-06-08 21:26:01 -04:00
configure
CREDITS.TXT [test commit] Add my name to the CREDITS.TXT 2020-07-24 12:05:53 -05:00
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
llvm.spec.in Update structured references to the license to the new license. 2019-01-19 11:30:51 +00:00
LLVMBuild.txt Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
README.txt Test commit. 2020-03-14 18:08:26 -07:00
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +00:00

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