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Mirror of official llvm git repository located at http://llvm.org/git/llvm. Updated every five minutes.
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Craig Topper a1d9ba7078 [X86] Prevent constant hoisting for a couple compare immediates that the selection DAG knows how to optimize into a shift. 
This allows "icmp ugt %a, 4294967295" and "icmp uge %a, 4294967296" to be optimized into right shifts by 32 which can fold the immediate into the shift instruction. These patterns show up with some regularity in real code.

Unfortunately, since getImmCost can't see the icmp predicate we can't be tell if we're only catching these specific cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256126 91177308-0d34-0410-b5e6-96231b3b80d8
2015-12-20 18:41:54 +00:00
autoconf [OPENMP] Make -fopenmp to turn on OpenMP support by default. 2015-12-10 05:45:58 +00:00
bindings Deprecate a few C APIs. 2015-12-18 23:46:42 +00:00
cmake Revert r254592 (virtual dtor in SCEVPredicate). 2015-12-17 16:43:53 +00:00
docs Delete APIs that have been deprecated since 2010. 2015-12-19 21:42:07 +00:00
examples [Orc] Fix Kaleidoscope example for change in r254693. 2015-12-04 02:32:32 +00:00
include [PGO] Improve Indexed Profile Reader efficiency 2015-12-20 06:22:13 +00:00
lib [X86] Prevent constant hoisting for a couple compare immediates that the selection DAG knows how to optimize into a shift. 2015-12-20 18:41:54 +00:00
projects [CMake] Disable adding the test suite as a projects subdirectory 2015-10-28 18:36:56 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
test [X86] Prevent constant hoisting for a couple compare immediates that the selection DAG knows how to optimize into a shift. 2015-12-20 18:41:54 +00:00
tools [llvm-objdump] Move COFF function to where it belongs. 2015-12-20 09:54:34 +00:00
unittests ThreadPool unittests: do not hold mutex when calling condition_variable:notify() 2015-12-19 22:56:24 +00:00
utils [X86] Part 2 to fix x86-64 fp128 calling convention. 2015-12-14 22:08:36 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy adding readability-identifier-naming to llvm clang-tidy configuration. 2015-12-08 17:44:51 +00:00
.gitignore Minor updates to gitignore so that symlinks are ignored in the projects dir. 2015-07-07 20:24:58 +00:00
CMakeLists.txt Generate a clang CompilationDatabase when running CMake 2015-12-16 18:17:45 +00:00
CODE_OWNERS.TXT The PS4 baton passes. 2015-12-19 20:04:03 +00:00
configure [OPENMP] Make -fopenmp to turn on OpenMP support by default. 2015-12-10 05:45:58 +00:00
CREDITS.TXT [WebAssembly] Initial WebAssembly backend 2015-06-29 23:51:55 +00:00
LICENSE.TXT Update for a new year. 2015-03-12 01:25:29 +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 Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile [configure/make] Propagate names of build host tools when making BuildTools 2014-03-25 21:45:41 +00:00
Makefile.common
Makefile.config.in We're actually -Wmissing-field-initializers clean thanks to the cmake 2015-08-07 16:44:47 +00:00
Makefile.rules Create Makefile variables for 'share' and 'libexec' 2015-11-09 16:10:00 +00:00
README.txt Revert previous test commit. 2015-12-11 07:40:25 +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.