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Mirror of https://github.com/RPCS3/llvm-mirror
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Sanjay Patel 3e2b1fd515 [InstSimplify] fold sdiv/srem based on compare of dividend and divisor 
This should bring signed div/rem analysis up to the same level as unsigned. 
We use icmp simplification to determine when the divisor is known greater than the dividend.

Each positive test is followed by a negative test to show that we're not overstepping the boundaries of the known bits.
There are extra tests for the signed-min-value special cases.

Alive proofs:
http://rise4fun.com/Alive/WI5

Differential Revision: https://reviews.llvm.org/D37713

llvm-svn: 313264
2017-09-14 14:59:07 +00:00
bindings Update the Go bindings for r309426 (remove offset from llvm.dbg.value) 2017-07-28 22:44:44 +00:00
cmake Revert "Determine up front which projects are enabled." 2017-09-13 20:49:25 +00:00
docs Fix a misleading phrase in the LangRef 2017-09-13 18:49:22 +00:00
examples Fix broken links to the Itanium CXX ABI 2017-09-12 00:19:11 +00:00
include [dwarfdump] Add DWARF verifiers for address ranges 2017-09-14 11:33:42 +00:00
lib [InstSimplify] fold sdiv/srem based on compare of dividend and divisor 2017-09-14 14:59:07 +00:00
projects Add temporary workaround to allow in-tree libc++ builds on Windows 2017-05-11 01:44:30 +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][runtimes] Use the same configuration for non-target and "default" target 2017-09-08 22:26:50 +00:00
test [InstSimplify] fold sdiv/srem based on compare of dividend and divisor 2017-09-14 14:59:07 +00:00
tools Recommit r313234 "[llvm-readobj] - Refactor printGroupSections methods." 2017-09-14 07:32:52 +00:00
unittests [dwarfdump] Add DWARF verifiers for address ranges 2017-09-14 11:33:42 +00:00
utils Convenience/safety fix for llvm::sys::Execute(And|No)Wait 2017-09-13 17:03:37 +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
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitignore gitignore: Ignore .vs folder (VS2017 config files) 2017-04-08 00:16:58 +00:00
CMakeLists.txt Revert "Determine up front which projects are enabled." 2017-09-13 20:49:25 +00:00
CODE_OWNERS.TXT [ARC] Add ARC backend. 2017-08-24 15:40:33 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Another test commit 2017-07-01 03:24:06 +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 access 2017-08-18 02:39:28 +00:00
RELEASE_TESTERS.TXT [RelTest] Diana is doing both releases now 2017-07-14 08:33:52 +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.