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Max Kazantsev 3c0acd8ea8 [LoopSimplifyCFG] Fix inconsistency in live blocks markup 
When we choose whether or not we should mark block as dead, we have an
inconsistent logic in markup of live blocks.
- We take candidate IF its terminator branches on constant AND it is immediately
  in current loop;
- We mark successor live IF its terminator doesn't branch by constant OR it branches
  by constant and the successor is its always taken block.

What we are missing here is that when the terminator branches on a constant but is
not taken as a candidate because is it not immediately in the current loop, we will
mark only one (always taken) successor as live. Therefore, we do NOT do the actual
folding but may NOT mark one of the successors as live. So the result of markup is
wrong in this case, and we may then hit various asserts.

Thanks Jordan Rupprech for reporting this!

Differential Revision: https://reviews.llvm.org/D57095
Reviewed By: rupprecht

llvm-svn: 352024
2019-01-24 05:20:29 +00:00
benchmarks
bindings Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
cmake Fix llvm::is_trivially_copyable portability issues 2019-01-22 13:48:55 +00:00
docs [docs] Remove extra character from git URL in Getting Started guide. 2019-01-24 01:22:32 +00:00
examples Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
include [Sanitizers] UBSan unreachable incompatible with ASan in the presence of noreturn calls 2019-01-24 01:06:19 +00:00
lib [LoopSimplifyCFG] Fix inconsistency in live blocks markup 2019-01-24 05:20:29 +00:00
projects Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
resources
runtimes
test [LoopSimplifyCFG] Fix inconsistency in live blocks markup 2019-01-24 05:20:29 +00:00
tools [llvm-symbolizer] Add support for -i and -inlines as aliases for -inlining 2019-01-24 00:34:09 +00:00
unittests [llvm] Clarify responsiblity of some of DILocation discriminator APIs 2019-01-24 00:10:25 +00:00
utils gn build: Merge r351320 (the 9.0.0 version bump) 2019-01-24 01:00:52 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitattributes
.gitignore Git ignore CLion project configuration files. NFC 2019-01-02 19:58:07 +00:00
CMakeLists.txt Revert r351324 "Build LLVM-C.dll by default on windows and enable in release package" 2019-01-16 12:36:28 +00:00
CODE_OWNERS.TXT [llvm-mca] Move llvm-mca library to llvm/lib/MCA. 2018-12-17 08:08:31 +00:00
configure
CREDITS.TXT Remove a period from CREDITS.TXT (testing email change). NFC 2019-01-19 09:07:38 +00:00
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
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +00:00

README.txt 

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

This directory and its subdirectories contain source code for LLVM,
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Please see the documentation provided in docs/ for further
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