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Max Kazantsev ce271f3ebb [AliasSetTracker] Do not treat experimental_guard intrinsic as memory writing instruction
The `experimental_guard` intrinsic has memory write semantics to model the thread-exiting
logic, but does not do any actual writes to memory. Currently, `AliasSetTracker` treats it as a
normal memory write. As result, a loop-invariant load cannot be hoisted out of loop because
the guard may possibly alias with it.

This patch makes `AliasSetTracker` so that it doesn't treat guards as memory writes.

Differential Revision: https://reviews.llvm.org/D50497
Reviewed By: reames

llvm-svn: 339753
2018-08-15 06:21:02 +00:00
bindings [LLVM-C] [OCaml] Remove LLVMAddBBVectorizePass 2018-05-28 16:58:10 +00:00
cmake [CMake] Split -gx strip flag into -g -x 2018-08-14 02:00:21 +00:00
docs Update the coding standards and developer policy documentation surrounding whitespace. 2018-08-10 17:26:07 +00:00
examples [ORC] Update JITCompileCallbackManager to support multi-threaded code. 2018-05-30 01:57:45 +00:00
include [NFC] Refactoring of LoopSafetyInfo, step 1 2018-08-15 05:55:43 +00:00
lib [AliasSetTracker] Do not treat experimental_guard intrinsic as memory writing instruction 2018-08-15 06:21:02 +00:00
projects
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runtimes Revert "[CMake] Pass Clang defaults to runtimes builds" 2018-07-13 20:01:55 +00:00
test [AliasSetTracker] Do not treat experimental_guard intrinsic as memory writing instruction 2018-08-15 06:21:02 +00:00
tools [Support] NFC: Allow modifying access/modification times independently in sys::fs::setLastModificationAndAccessTime. 2018-08-13 23:03:45 +00:00
unittests [DebugInfoMetadata] Added DIFlags interface in DIBasicType. 2018-08-14 19:35:34 +00:00
utils [Tablegen][MCInstPredicate] Removed redundant template argument from class TIIPredicate, and implemented verification rules for TIIPredicates. 2018-08-14 18:36:54 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitattributes [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
.gitignore
CMakeLists.txt Remove vestiges of configure buildsystem 2018-08-14 21:25:49 +00:00
CODE_OWNERS.TXT Add owner for llvm-objcopy 2018-08-09 22:05:19 +00:00
configure
CREDITS.TXT Update my information in the CREDITS file. 2018-06-15 20:02:11 +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: remove a blank line 2018-06-08 21:21:55 +00:00
RELEASE_TESTERS.TXT Remove myself from the release testers list. (NFC) 2018-06-20 21:25:50 +00:00

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