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Heejin Ahn 7e7aad1510 [WebAssembly] Optimize the number of routing blocks in FixIrreducibleCFG 
Summary:
Currently we create a routing block to the dispatch block for every
predecessor of every entry. So the total number of routing blocks
created will be (# of preds) * (# of entries). But we don't need to do
this: we need at most 2 routing blocks per loop entry, one for when the
predecessor is inside the loop and one for it is outside the loop. (We
can't merge these into one because this will creates another loop cycle
between blocks inside and blocks outside) This patch fixes this and
creates at most 2 routing blocks per entry.

This also renames variable `Split` to `Routing`, which I think is a bit
clearer.

Reviewers: kripken

Subscribers: sunfish, dschuff, sbc100, jgravelle-google, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D59462

llvm-svn: 357337
 		2019-03-30 01:31:11 +00:00
clang [analyzer] MIGChecker: Add support for more deallocator APIs. 2019-03-29 23:56:53 +00:00
clang-tools-extra [clang-tidy] Fix PR28406 2019-03-29 20:55:29 +00:00
compiler-rt [Sanitizer] Add interceptor for wctomb 2019-03-29 08:39:03 +00:00
debuginfo-tests Set config.lit_tools_dir, which is needed by lit.llvm.initialize. 2018-11-06 21:54:27 +00:00
libclc travis: Add LLVM-8 build 2019-03-27 21:28:31 +00:00
libcxx Mark fenv.h as a system header before the #include_next directive 2019-03-29 16:03:57 +00:00
libcxxabi [libc++abi] Don't set POSITION_INDEPENDENT_CODE when building static library 2019-03-29 22:08:56 +00:00
libunwind Revert "[runtimes] Move libunwind, libc++abi and libc++ to lib/ and include/" 2019-03-08 20:33:55 +00:00
lld Re-land "[WebAssembly] Improve invalid relocation error message"" 2019-03-29 22:56:39 +00:00
lldb [CMake] Add missing test dep 2019-03-30 00:00:19 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm [WebAssembly] Optimize the number of routing blocks in FixIrreducibleCFG 2019-03-30 01:31:11 +00:00
openmp [libomptarget] Introduce LIBOMPTARGET_ENABLE_DEBUG cmake option. 2019-03-26 15:19:15 +00:00
parallel-libs Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
polly Apply include-what-you-use #include removal suggestions. NFC. 2019-03-28 20:19:49 +00:00
pstl [pstl] Qualify calls to internal functions 2019-03-29 20:11:24 +00:00
.arcconfig Update monorepo .arcconfig with new project callsign. 2019-01-31 14:34:59 +00:00
.clang-format Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
README.md
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README.md

The LLVM Compiler Infrastructure

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.