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Sanjay Patel 09930dc43f [x86] increment/decrement constant vector with min/max in vsetcc lowering (PR39859) 
This is part of fixing PR39859:
https://bugs.llvm.org/show_bug.cgi?id=39859

We have a crippled vector ISA, so we have to invert a typical fold and create min/max here.

As discussed in the bug report, we can probably do better by using saturating subtract when 
it's available, but we should have this improvement for the min/max patterns regardless.

Alive proofs:
https://rise4fun.com/Alive/zsf
https://rise4fun.com/Alive/Qrl

Differential Revision: https://reviews.llvm.org/D55515

llvm-svn: 349304
2018-12-16 15:05:48 +00:00
benchmarks Pull google/benchmark library to the LLVM tree 2018-08-28 09:42:41 +00:00
bindings [bindings/go] Add Go bindings to LLVMGetIndices 2018-11-08 04:04:04 +00:00
cmake [CMake] llvm_codesign workaround for Xcode double-signing errors 2018-12-13 18:51:19 +00:00
docs Use backquotes to avoid a sphinx unexpected error: 2018-12-16 14:19:39 +00:00
examples Fix build break from r347239 2018-11-19 18:51:11 +00:00
include [WebAssembly] Check if the section order is correct 2018-12-15 00:58:12 +00:00
lib [x86] increment/decrement constant vector with min/max in vsetcc lowering (PR39859) 2018-12-16 15:05:48 +00:00
projects [projects] Use directory name for add_llvm_external_projects 2018-12-04 00:12:03 +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 Revert "[CMake] Pass Clang defaults to runtimes builds" 2018-07-13 20:01:55 +00:00
test [x86] increment/decrement constant vector with min/max in vsetcc lowering (PR39859) 2018-12-16 15:05:48 +00:00
tools [WebAssembly] Check if the section order is correct 2018-12-15 00:58:12 +00:00
unittests [ADT] Fix bugs in SmallBitVector. 2018-12-14 18:21:20 +00:00
utils [gn build] Merge r349167 2018-12-16 02:32:20 +00:00
.arcconfig [llvm] Set up .arcconfig to point to Diffusion L repository 2018-01-12 15:37:41 +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
.gitattributes [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
.gitignore [git/svn] Ignore Visual Studio's CMakeSettings.json. 2018-10-29 14:51:02 +00:00
CMakeLists.txt [LLVM] Allow modulemap installation 2018-11-21 20:46:50 +00:00
CODE_OWNERS.TXT [CODE_OWNERS] Add myself as code owner for MinGW 2018-11-29 10:58:15 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT add Kang Zhang(shkzhang@cn.ibm.com) to the CREDITS.TXT 2018-11-25 02:56:49 +00:00
LICENSE.TXT Update copyright year to 2018. 2018-06-18 12:22:17 +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. 2018-09-22 01:01:03 +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.