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Mirror of https://github.com/RPCS3/llvm-mirror
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19b8b1b408
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Justin Lebar 19b8b1b408 [NVPTX] Improve lowering of llvm.ctlz. 
Summary:
* Disable "ctlz speculation", which inserts a branch on every ctlz(x) which
  has defined behavior on x == 0 to check whether x is, in fact zero.

* Add DAG patterns that avoid re-truncating or re-expanding the result
  of the 16- and 64-bit ctz instructions.

Reviewers: tra

Subscribers: llvm-commits, jholewinski

Differential Revision: https://reviews.llvm.org/D28719

llvm-svn: 292299
2017-01-18 00:07:35 +00:00
bindings Fix go bindings after r289702 (hopefully, don't really know how to build 2016-12-15 06:54:29 +00:00
cmake Enabled -fsanitize-address-use-after-scope for -DLLVM_USE_SANITIZER=Address 2017-01-17 21:04:23 +00:00
docs Fix GettingStarted doc so that the example build command for cmake LLVM_ENABLE_PROJECTS works on linux 2017-01-17 23:23:08 +00:00
examples BrainF example: fixing output buffering issue 2017-01-17 13:27:28 +00:00
include [IR] Grammar police: "intact" is one word. NFC 2017-01-18 00:07:18 +00:00
lib [NVPTX] Improve lowering of llvm.ctlz. 2017-01-18 00:07:35 +00:00
projects [CMake] Correct configuration order of the sub-projects based on ther dependancies 2016-10-09 20:38:29 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
runtimes [CMake] Handle common options for runtimes build 2017-01-10 19:47:05 +00:00
test [NVPTX] Improve lowering of llvm.ctlz. 2017-01-18 00:07:35 +00:00
tools Remove pid_t usage from llvm-xray 2017-01-17 09:39:31 +00:00
unittests [ADT] Add SparseBitVector::find_last(). 2017-01-17 23:09:21 +00:00
utils Revert r292231. 2017-01-17 18:06:38 +00:00
.arcconfig project_id is from another era in phabricator land and does not provide any value. 2016-09-27 15:47:29 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitignore [AVR] Add the integrated testing tool to the .gitignore 2016-12-14 11:47:14 +00:00
CMakeLists.txt Bump trunk version to 5.0.0svn 2017-01-12 21:22:36 +00:00
CODE_OWNERS.TXT CODE_OWNERS: Take ownership of IR Linker as discussed on llvm-dev 2016-12-02 14:06:53 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Revert revision 289721. 2016-12-14 21:58:42 +00:00
LICENSE.TXT Bump year to 2017 in LICENSE.txt 2017-01-12 18:02:42 +00:00
llvm.spec.in [Sparc] Implement i64 load/store support for 32-bit sparc. 2015-08-10 19:11:39 +00:00
LLVMBuild.txt
README.txt Test commit, deleted empty line at the end of README.txt 2016-11-07 18:31:21 +00:00
RELEASE_TESTERS.TXT Update the release tester for MIPS. NFC. 2017-01-17 11:00:28 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

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.