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Aditya Nandakumar a264814e2a [GlobalISel]: Allow targets to override how to widen constants during legalization 
https://reviews.llvm.org/D70922

This adds a hook to allow targets to define exactly what extension
operation should be performed for widening constants. This handles cases
like widening i1 true which would end up becoming -1 which affects code
quality during combines.
Additionally, in order to stay consistent with how DAG is promoting
constants, we now signextend for byte sized types and zero extend
otherwise (by default). Targets can of course override this if
necessary.
2019-12-03 10:41:10 -08:00
benchmarks Pull google/benchmark library to the LLVM tree 2018-08-28 09:42:41 +00:00
bindings [llvm][bindings][go] Fix typo 2019-12-03 09:30:32 +01:00
cmake Revert "Temporarily revert "build: avoid hardcoding the libxml2 library name"" 2019-12-03 09:27:14 -08:00
docs Recommit "[DWARF5]Addition of alignment atrribute in typedef DIE." 2019-12-03 09:51:43 +05:30
examples [ORC] Add a runAsMain utility function to ExecutionUtils. 2019-12-02 01:52:52 -08:00
include [GlobalISel]: Allow targets to override how to widen constants during legalization 2019-12-03 10:41:10 -08:00
lib [GlobalISel]: Allow targets to override how to widen constants during legalization 2019-12-03 10:41:10 -08:00
projects Add few docs and implementation of strcpy and strcat. 2019-10-04 17:30:54 +00:00
resources
runtimes Adding support for overriding LLVM_ENABLE_RUNTIMES for runtimes builds. 2019-09-24 22:38:18 +00:00
test [GlobalISel]: Allow targets to override how to widen constants during legalization 2019-12-03 10:41:10 -08:00
tools llvm-config: do not link absolute paths with -l 2019-12-03 08:54:09 -08:00
unittests [APInt][PatternMatch] Add 'is non-positive' predicate 2019-12-03 21:34:12 +03:00
utils gn build: Merge bc76dadb3cf 2019-12-03 11:35:13 +00:00
.arcconfig [llvm] Set up .arcconfig to point to Diffusion L repository 2018-01-12 15:37:41 +00:00
.clang-format
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.gitattributes Fix the "git modified" issue on the preserve-comments-crlf.s. 2019-09-10 12:17:49 +00:00
.gitignore gitignore: Ignore Qt Creator project configuration files. NFC 2019-06-12 08:28:31 +00:00
CMakeLists.txt Revert "[Examples] Add IRTransformations directory to examples." 2019-12-01 22:20:20 +00:00
CODE_OWNERS.TXT Update email address in CODE_OWNERS 2019-07-01 16:01:15 +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. 2019-10-03 14:57:49 +00:00
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.