Chandler Carruth bd357588a1 [x86] Teach the x86 vector shuffle lowering to detect mergable 128-bit ... lanes. By special casing these we can often either reduce the total number of shuffles significantly or reduce the number of (high latency on Haswell) AVX2 shuffles that potentially cross 128-bit lanes. Even when these don't actually cross lanes, they have much higher latency to support that. Doing two of them and a blend is worse than doing a single insert across the 128-bit lanes to blend and then doing a single interleaved shuffle. While this seems like a narrow case, it kept cropping up on me and the difference is *huge* as you can see in many of the test cases. I first hit this trying to perfectly fix the interleaving shuffle patterns used by Halide for AVX2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222533 91177308-0d34-0410-b5e6-96231b3b80d8		2014-11-21 13:56:05 +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
Bitcode
BugPoint
CodeGen	[x86] Teach the x86 vector shuffle lowering to detect mergable 128-bit	2014-11-21 13:56:05 +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
FileCheck
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
JitListener
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
SymbolRewriter	Transform: add SymbolRewriter pass	2014-11-07 21:32:08 +00:00
TableGen
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
Verifier
YAMLParser
.clang-format
CMakeLists.txt
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
Makefile	OCAMLFLAGS can contain =, don't use = with sed	2014-11-13 09:29:30 +00:00
Makefile.tests
TestRunner.sh