Michael Kuperstein 5e343e6fd0 [X86] Improve a dag-combine that handles a vector extract -> zext sequence. ...

The current DAG combine turns a sequence of extracts from <4 x i32> followed by zexts into a store followed by scalar loads.
According to measurements by Martin Krastev (see PR 21269) for x86-64, a sequence of an extract, movs and shifts gives better performance. However, for 32-bit x86, the previous sequence still seems better.

Differential Revision: http://reviews.llvm.org/D6501

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223360 91177308-0d34-0410-b5e6-96231b3b80d8

2014-12-04 13:49:51 +00:00

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Analysis

Revert r222039 because of bot failure.

2014-11-19 00:13:26 +00:00

Assembler

Use FileCheck in a few tests.

2014-11-06 15:05:51 +00:00

Bindings

[OCaml] Move Llvm.clone_module to its own Llvm_transform_utils module.

2014-12-01 19:50:39 +00:00

Bitcode

Parse 'ghccc' in .ll files as the GHC convention (cc 10)

2014-12-01 21:04:44 +00:00

BugPoint

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CodeGen

[X86] Improve a dag-combine that handles a vector extract -> zext sequence.

2014-12-04 13:49:51 +00:00

DebugInfo

Switch lowering: Fix broken 'Figure out which block is next' code

2014-11-29 21:17:05 +00:00

ExecutionEngine

Small model and JIT generally don't go well with each other.

2014-11-25 17:14:22 +00:00

Feature

Prologue support

2014-12-03 02:08:38 +00:00

FileCheck

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Instrumentation

[msan] allow -fsanitize-coverage=N together with -fsanitize=memory, llvm part

2014-12-03 23:28:26 +00:00

Integer

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JitListener

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Linker

Split the set of identified struct types into opaque and non-opaque ones.

2014-12-03 22:36:37 +00:00

LTO

Add Forward Control-Flow Integrity.

2014-11-11 21:08:02 +00:00

MC

[Thumb/Thumb2] Added restrictions on PC, LR, SP in the register list for PUSH/POP/LDM/STM. <Differential Revision: http://reviews.llvm.org/D6090>

2014-12-04 11:52:49 +00:00

Object

Add missing test file

2014-12-04 09:20:13 +00:00

Other

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SymbolRewriter

Transform: add SymbolRewriter pass

2014-11-07 21:32:08 +00:00

TableGen

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tools

This reverts commit r223306 and r223277.

2014-12-03 23:29:34 +00:00

Transforms

[InstCombine] Minor optimization for bswap with binary ops

2014-12-04 09:44:01 +00:00

Unit

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Verifier

[Statepoints 1/4] Statepoint infrastructure for garbage collection: IR Intrinsics

2014-12-01 21:18:12 +00:00

YAMLParser

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.clang-format

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CMakeLists.txt

Revert "Add missing test dependency and use a more canonical target name."

2014-12-04 04:33:32 +00:00

lit.cfg

[OCaml] [cmake] Add CMake buildsystem for OCaml.

2014-12-01 19:50:23 +00:00

lit.site.cfg.in

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Makefile

OCAMLFLAGS can contain =, don't use = with sed

2014-11-13 09:29:30 +00:00

Makefile.tests

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TestRunner.sh

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