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Daniel Neilson 71fa1b904a [DSE] Teach the pass about partial overwrite of atomic memory intrinsics 
Summary:
This change teaches DSE that the atomic memory intrinsics can be overwriten
partially in the same way as the non-atomic forms. Specifically, that the
atomic memcpy & memset can be shortened at the end and that the atomic memset
can be shortened at the beginning, if they partially overwritten
by later stores.

Reviewers: mkazantsev, skatkov, apilipenko, efriedma, rsmith, spatel, filcab, sanjoy

Reviewed By: efriedma

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D45584

llvm-svn: 331991
 		2018-05-10 15:12:49 +00:00
..
Analysis [SCEV] Add missed Test for rL331949. 2018-05-10 01:42:59 +00:00
Assembler [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
Bindings [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
Bitcode [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
BugPoint
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CodeGen [x86] fix test names; NFC 2018-05-10 14:58:47 +00:00
DebugInfo [DWARF] Rework debug line parsing to use llvm::Error and callbacks 2018-05-10 10:51:33 +00:00
Examples
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ExecutionEngine [RuntimeDyld][MachO] Properly handle thumb to thumb calls within a section. 2018-05-09 01:38:13 +00:00
Feature
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FileCheck
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Instrumentation [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
Integer
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JitListener [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
LTO [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
Linker [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
MC [mips] Correct the predicates of cvt.fmt.fmt instructions 2018-05-10 10:42:30 +00:00
Object Add a test for r331746. 2018-05-09 08:20:14 +00:00
ObjectYAML obj2yaml: Correctly round-trip default alignment. 2018-05-04 16:28:41 +00:00
Other [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
SafepointIRVerifier
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SymbolRewriter
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TableGen [globalisel] Update GlobalISel emitter to match new representation of extending loads 2018-05-05 20:53:24 +00:00
ThinLTO/X86 [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
Transforms [DSE] Teach the pass about partial overwrite of atomic memory intrinsics 2018-05-10 15:12:49 +00:00
Unit
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Verifier [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
YAMLParser
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tools [DWARF] Rework debug line parsing to use llvm::Error and callbacks 2018-05-10 10:51:33 +00:00
.clang-format
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CMakeLists.txt [tools] Add missing test dependency 2018-05-07 22:00:59 +00:00
TestRunner.sh
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lit.cfg.py [tools] Adjust the lit config for llvm-strip 2018-05-07 21:07:01 +00:00
lit.site.cfg.py.in Remove 'abi-breaking-checks' lit feature. 2018-05-09 12:39:39 +00:00