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James Y Knight 582ae3d23e Correctly modify the CFG in IfConverter, and then remove the 
CorrectExtraCFGEdges function.

The latter was a workaround for "Various pieces of code" leaving bogus
extra CFG edges in place. Where by "various" it meant only
IfConverter::MergeBlocks, which failed to clear all of the successors
of dead blocks it emptied out. This wouldn't matter a whole lot,
except that the dead blocks remained listed as predecessors of
still-useful blocks, inhibiting optimizations.

This fix slightly changed two thumb tests, because the correct CFG
successors allowed for the "diamond" if-conversion pattern to be
detected, when it could only use "simple" before.

Additionally, the removal of a now-redundant call to analyzeBranch
(with AllowModify=true) in BranchFolder::OptimizeFunction caused a
later check for an empty block in BranchFolder::OptimizeBlock to
fail. Correct this by moving the call to analyzeBranch in
OptimizeBlock higher.

Differential Revision: https://reviews.llvm.org/D79527
2020-05-07 18:17:07 -04:00
benchmarks
bindings Update go bindings for 2dea3f129878e929e5d1f00b91a622eb1ec8be4e 2020-04-22 19:02:59 +02:00
cmake Make -Wnonportable-include-path ignore drive case on Windows. 2020-05-07 15:54:09 -04:00
docs [dsymutil] Add option to print statistics about the .debug_info size. 2020-05-06 19:48:45 -07:00
examples [examples] Fix an incomplete comment. 2020-05-01 11:06:41 -07:00
include Correctly modify the CFG in IfConverter, and then remove the 2020-05-07 18:17:07 -04:00
lib Correctly modify the CFG in IfConverter, and then remove the 2020-05-07 18:17:07 -04:00
projects Add few docs and implementation of strcpy and strcat. 2019-10-04 17:30:54 +00:00
resources
runtimes [runtimes] When COMPILER_RT is enabled, consider SANITIZER prefixes 2020-03-11 14:22:20 -07:00
test Correctly modify the CFG in IfConverter, and then remove the 2020-05-07 18:17:07 -04:00
tools [dsymutil] Add option to print statistics about the .debug_info size. 2020-05-06 19:48:45 -07:00
unittests [YAMLVFSWriter][Test][NFC] Add couple tests 2020-05-07 11:03:25 -07:00
utils [gn build] Port e3ffe7269b6 2020-05-07 10:11:03 +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 Continue removing llgo. 2020-02-10 10:33:58 -08:00
CMakeLists.txt Revert "[lldb][cmake] Also use local submodule visibility on Darwin" 2020-05-05 15:23:34 +02:00
CODE_OWNERS.TXT Remove myself from CODE_OWNERS. 2020-02-25 11:59:29 +00:00
configure
CREDITS.TXT Update email address. 2019-07-17 07:02:02 +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 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

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,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.