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ea06f385c5
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Joerg Sonnenberger ea06f385c5 Add a pass to lower is.constant and objectsize intrinsics 
This pass lowers is.constant and objectsize intrinsics not simplified by
earlier constant folding, i.e. if the object given is not constant or if
not using the optimized pass chain. The result is recursively simplified
and constant conditionals are pruned, so that dead blocks are removed
even for -O0. This allows inline asm blocks with operand constraints to
work all the time.

The new pass replaces the existing lowering in the codegen-prepare pass
and fallbacks in SDAG/GlobalISEL and FastISel. The latter now assert
on the intrinsics.

Differential Revision: https://reviews.llvm.org/D65280

llvm-svn: 374743
2019-10-13 23:00:15 +00:00
benchmarks Pull google/benchmark library to the LLVM tree 2018-08-28 09:42:41 +00:00
bindings Add a pass to lower is.constant and objectsize intrinsics 2019-10-13 23:00:15 +00:00
cmake [llvm] [ocaml] Support linking against dylib 2019-10-11 14:32:43 +00:00
docs [Docs] Moves Control Flow Document to User Guides 2019-10-13 20:05:22 +00:00
examples [Orc] Roll back ThreadPool to std::function 2019-09-13 11:59:51 +00:00
include Add a pass to lower is.constant and objectsize intrinsics 2019-10-13 23:00:15 +00:00
lib Add a pass to lower is.constant and objectsize intrinsics 2019-10-13 23:00:15 +00:00
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 Add a pass to lower is.constant and objectsize intrinsics 2019-10-13 23:00:15 +00:00
tools [llvm-lipo] Pass ArrayRef by value. 2019-10-12 06:14:02 +00:00
unittests [GISel][UnitTest] Fix a bunch of tests that were not doing anything 2019-10-11 20:58:26 +00:00
utils Add a pass to lower is.constant and objectsize intrinsics 2019-10-13 23:00:15 +00:00
.arcconfig
.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 Add few docs and implementation of strcpy and strcat. 2019-10-04 17:30:54 +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.