Sanjay Patel be9ee96926 [X86, AVX] instcombine common cases of vperm2* intrinsics into shuffles ... vperm2* intrinsics are just shuffles. In a few special cases, they're not even shuffles. Optimizing intrinsics in InstCombine is better than handling this in the front-end for at least two reasons: 1. Optimizing custom-written SSE intrinsic code at -O0 makes vector coders really angry (and so I have regrets about some patches from last week). 2. Doing mask conversion logic in header files is hard to write and subsequently read. There are a couple of TODOs in this patch to complete this optimization. Differential Revision: http://reviews.llvm.org/D8486 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232852 91177308-0d34-0410-b5e6-96231b3b80d8		2015-03-20 21:47:56 +00:00
..
Analysis	When simplifying a SCEV truncate by distributing, consider it a simplification to replace a cast, even if we end up with a trunc around the term. Fixes PR22960!	2015-03-20 02:25:00 +00:00
Assembler
Bindings
Bitcode
BugPoint	Bugpoint: Fix invalid 'inlinedAt:' references in testcase	2015-03-20 19:51:34 +00:00
CodeGen	Fixing a bug with WinEH PHI handling	2015-03-20 21:42:54 +00:00
DebugInfo	Don't declare all text sections at the start of the .s	2015-03-20 20:00:01 +00:00
ExecutionEngine
Feature	Rewrite test/Feature/md_on_instruction.ll	2015-03-20 18:34:53 +00:00
FileCheck
Instrumentation
Integer
JitListener
Linker
LTO	libLTO, llvm-lto, gold: Introduce flag for controlling optimization level.	2015-03-19 22:01:00 +00:00
MC	Reorganize the x86 ELF relocation selection logic.	2015-03-20 19:48:54 +00:00
Object
Other
SymbolRewriter
TableGen
tools	test: Make a start on a test suite for libLTO.	2015-03-19 23:55:38 +00:00
Transforms	[X86, AVX] instcombine common cases of vperm2* intrinsics into shuffles	2015-03-20 21:47:56 +00:00
Unit
Verifier	Verifier: Check that !dbg attachments have the right type	2015-03-20 19:26:58 +00:00
YAMLParser
.clang-format
CMakeLists.txt	test: Make a start on a test suite for libLTO.	2015-03-19 23:55:38 +00:00
lit.cfg	test: Make a start on a test suite for libLTO.	2015-03-19 23:55:38 +00:00
lit.site.cfg.in	test: Make a start on a test suite for libLTO.	2015-03-19 23:55:38 +00:00
Makefile	test: Make a start on a test suite for libLTO.	2015-03-19 23:55:38 +00:00
Makefile.tests
TestRunner.sh