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Max Kazantsev 9881abcc90 [LICM] Remove too conservative IsMustExecute variable 
LICM relies on variable `MustExecute` which is conservatively set to `false`
in all non-headers. It is used when we decide whether or not we want to hoist
an instruction or a guard.

For the guards, it might be too conservative to use this variable, we can
instead use a more precise logic from LoopSafetyInfo. Currently it is only NFC
because `IsMemoryNotModified` is also conservatively set to `false` for all
non-headers, and we cannot hoist guards from non-header blocks. However once we
give up using `IsMemoryNotModified` and use a smarter check instead, this will
allow us to hoist guards from all mustexecute non-header blocks.

Differential Revision: https://reviews.llvm.org/D50888
Reveiwed By: fedor.sergeev

llvm-svn: 346204
2018-11-06 04:17:40 +00:00
benchmarks Pull google/benchmark library to the LLVM tree 2018-08-28 09:42:41 +00:00
bindings [TI removal] Remove TerminatorInst references from bindings. 2018-10-18 07:40:03 +00:00
cmake [CMake] Expose opt-remark tooling through libOptRemarks.dylib 2018-11-05 11:57:44 +00:00
docs AMDGPU: Add sram-ecc feature 2018-11-05 22:44:19 +00:00
examples [BuildingAJIT] Update the Ch1 KaleidoscopeJIT class to expose errors to clients. 2018-10-18 00:51:38 +00:00
include [LICM] Use ICFLoopSafetyInfo in LICM 2018-11-06 02:44:49 +00:00
lib [LICM] Remove too conservative IsMustExecute variable 2018-11-06 04:17:40 +00:00
projects [cmake] Support moving debuginfo-tests to llvm/projects 2017-12-12 17:06:08 +00:00
resources
runtimes Revert "[CMake] Pass Clang defaults to runtimes builds" 2018-07-13 20:01:55 +00:00
test [LICM] Use ICFLoopSafetyInfo in LICM 2018-11-06 02:44:49 +00:00
tools [LLVM-C] Improve Intrinsics Bindings 2018-11-06 01:38:14 +00:00
unittests MachineModuleInfo: Store more specific reference to LLVMTargetMachine; NFC 2018-11-05 23:49:13 +00:00
utils Exclude wasm target from Windows packaging due to PR39448 2018-11-05 09:31:43 +00:00
.arcconfig [llvm] Set up .arcconfig to point to Diffusion L repository 2018-01-12 15:37:41 +00:00
.clang-format
.clang-tidy
.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 [CMake] Fix a missing LLVM_ENABLE_IDE from r344555 2018-10-15 22:36:59 +00:00
CODE_OWNERS.TXT Add owner for llvm-objcopy 2018-08-09 22:05:19 +00:00
configure
CREDITS.TXT It's a test commit, which is my first commit and also add my name to CREDITS.TXT 2018-11-06 03:07:03 +00:00
LICENSE.TXT Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
llvm.spec.in
LLVMBuild.txt
README.txt Test commit. 2018-09-22 01:01:03 +00:00
RELEASE_TESTERS.TXT Remove myself from the release testers list. (NFC) 2018-06-20 21:25:50 +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.