Simon Pilgrim 902fe6e6a0 [X86][CGP] Reduce memcmp() expansion to 2 load pairs (PR33914) ...

D35067/rL308322 attempted to support up to 4 load pairs for memcmp inlining which resulted in regressions for some optimized libc memcmp implementations (PR33914).

Until we can match these more optimal cases, this patch reduces the memcmp expansion to a maximum of 2 load pairs (which matches what we do for -Os).

This patch should be considered for the 5.0.0 release branch as well

Differential Revision: https://reviews.llvm.org/D35830

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@308986 91177308-0d34-0410-b5e6-96231b3b80d8

2017-07-25 17:04:37 +00:00

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Analysis

[SCEV] Limit max size of AddRecExpr during evolving

2017-07-23 15:40:19 +00:00

Assembler

Debug Info: Add a file: field to DIImportedEntity.

2017-07-19 00:09:54 +00:00

Bindings

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Bitcode

Debug Info: Add a file: field to DIImportedEntity.

2017-07-19 00:09:54 +00:00

BugPoint

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CodeGen

[X86][CGP] Reduce memcmp() expansion to 2 load pairs (PR33914)

2017-07-25 17:04:37 +00:00

DebugInfo

Followup to r308890: don't assert the llvm llvm version number.

2017-07-24 19:44:43 +00:00

DllTool

llvm: add llvm-dlltool support to the archiver

2017-07-18 21:26:38 +00:00

Examples

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ExecutionEngine

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Feature

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FileCheck

[llvm] Remove redundant check-prefix=CHECK from tests. NFC.

2017-07-17 17:32:45 +00:00

Instrumentation

[asan] Copy arguments passed by value into explicit allocas for ASan

2017-07-18 22:28:03 +00:00

Integer

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JitListener

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LibDriver

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Linker

Debug Info: Add a file: field to DIImportedEntity.

2017-07-19 00:09:54 +00:00

LTO

LTO: Export functions referenced by the CFI jump table.

2017-07-19 18:18:19 +00:00

MC

[Sparc] invalid adjustments in TLS_LE/TLS_LDO relocations removed

2017-07-25 15:28:28 +00:00

Object

[llvm-readobj] - Teach readobj to print DT_FILTER dynamic tag in human readable form.

2017-07-14 16:00:16 +00:00

ObjectYAML

[codeview] Fix YAML for LF_TYPESERVER2 by hoisting PDB_UniqueId

2017-07-17 23:59:44 +00:00

Other

[TRE] Move to the new OptRemark API.

2017-07-19 21:13:22 +00:00

SafepointIRVerifier

[SafepointIRVerifier] Avoid false positives in GC verifier for compare between pointers

2017-07-07 13:02:29 +00:00

SymbolRewriter

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TableGen

[globalisel][tablegen] Add control-flow to the MatchTable.

2017-07-20 09:25:44 +00:00

ThinLTO/X86

ThinLTO Minimized Bitcode File Size Reduction

2017-07-21 17:25:20 +00:00

tools

[DWARF] Modified test for die ranges verification so that it doesn't fail on windows hosts.

2017-07-25 01:58:27 +00:00

Transforms

[X86][CGP] Reduce memcmp() expansion to 2 load pairs (PR33914)

2017-07-25 17:04:37 +00:00

Unit

Change remaining references to lit.util.capture to use subprocess.check_output.

2017-07-06 21:46:47 +00:00

Verifier

Add element atomic memset intrinsic

2017-07-12 21:57:23 +00:00

YAMLParser

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.clang-format

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CMakeLists.txt

llvm/test/CMakeLists.txt: Add llvm-rc to LLVM_TEST_DEPENDS.

2017-07-25 01:44:38 +00:00

lit.cfg

Make a file end with n and remove trailing whitespace.

2017-07-20 22:39:20 +00:00

lit.site.cfg.in

Implement parsing and writing of a single xml manifest file.

2017-07-20 21:42:04 +00:00

TestRunner.sh

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