Sanjay Patel 776e5485fb Add a feature flag for slow 32-byte unaligned memory accesses [x86]. ...

This patch adds a feature flag to avoid unaligned 32-byte load/store AVX codegen
for Sandy Bridge and Ivy Bridge. There is no functionality change intended for 
those chips. Previously, the absence of AVX2 was being used as a proxy to detect
this feature. But that hindered codegen for AVX-enabled AMD chips such as btver2
that do not have the 32-byte unaligned access slowdown.

Performance measurements are included in PR21541 ( http://llvm.org/bugs/show_bug.cgi?id=21541 ).

Differential Revision: http://reviews.llvm.org/D6355

llvm-svn: 222544

2014-11-21 17:40:04 +00:00

..

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] Run tests twice, with ocamlc and ocamlopt (if available)

2014-11-03 09:50:53 +00:00

Bitcode

Revert "Revert "DI: Fold constant arguments into a single MDString""

2014-10-03 20:01:09 +00:00

BugPoint

Revert "Revert "DI: Fold constant arguments into a single MDString""

2014-10-03 20:01:09 +00:00

CodeGen

Add a feature flag for slow 32-byte unaligned memory accesses [x86].

2014-11-21 17:40:04 +00:00

DebugInfo

Remove triple in testing case to recover an arm bot.

2014-11-18 16:45:34 +00:00

ExecutionEngine

MCJIT tests passing on ARM after r222414 fixed the relocation

2014-11-20 13:32:16 +00:00

Feature

Delete -std-compile-opts.

2014-10-16 20:00:02 +00:00

FileCheck

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Instrumentation

[asan] Add new hidden compile-time flag asan-instrument-allocas to sanitize variable-sized dynamic allocas. Patch by Max Ostapenko.

2014-11-21 10:29:50 +00:00

Integer

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JitListener

Revert "Revert "DI: Fold constant arguments into a single MDString""

2014-10-03 20:01:09 +00:00

Linker

IR: Simplify uniquing for MDNode

2014-11-17 23:28:21 +00:00

LTO

Add Forward Control-Flow Integrity.

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

MC

[ELF] Prevent ARM ELF object writer from generating deprecated relocation code R_ARM_PLT32

2014-11-20 05:58:11 +00:00

Object

Object, support both mach-o archive t.o.c file names

2014-11-12 01:37:45 +00:00

Other

[lit] Parse all strings as UTF-8 rather than ASCII.

2014-09-12 16:46:05 +00:00

SymbolRewriter

Transform: add SymbolRewriter pass

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

TableGen

[AVX512] Added intrinsics for VPCMPEQB and VPCMPEQW.

2014-09-30 11:32:22 +00:00

tools

[ELF] Prevent ARM ELF object writer from generating deprecated relocation code R_ARM_PLT32

2014-11-20 05:58:11 +00:00

Transforms

SROA: The alloca type isn't a candidate promotion type for vectors

2014-11-21 02:34:55 +00:00

Unit

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Verifier

Extend the verifier to validate range metadata on calls and invokes.

2014-10-20 23:52:07 +00:00

YAMLParser

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.clang-format

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CMakeLists.txt

Make llvm-go test dependency optional.

2014-10-23 19:51:40 +00:00

lit.cfg

Only run the gold plugin tests if gold supports the targets we test with.

2014-11-11 05:27:12 +00:00

lit.site.cfg.in

[OCaml] [autoconf] Migrate to ocamlfind.

2014-10-30 08:29:45 +00:00

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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