Chandler Carruth 4b667ee436 [x86] Teach the new vector shuffle lowering to use AVX2 instructions for ... v4f64 and v8f32 shuffles when they are lane-crossing. We have fully general lane-crossing permutation functions in AVX2 that make this easy. Part of this also changes exactly when and how these vectors are split up when we don't have AVX2. This isn't always a win but it usually is a win, so on the balance I think its better. The primary regressions are all things that just need to be fixed anyways such as modeling when a blend can be completely accomplished via VINSERTF128, etc. Also, this highlights one of the few remaining big features: we do a really poor job of inserting elements into AVX registers efficiently. This completes almost all of the big tricks I have in mind for AVX2. The only things left that I plan to add: 1) element insertion smarts 2) palignr and other fairly specialized lowerings when they happen to apply git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218449 91177308-0d34-0410-b5e6-96231b3b80d8		2014-09-25 11:03:55 +00:00
..
Analysis	Fix assertion in LICM doFinalization()	2014-09-24 16:48:31 +00:00
AsmParser
Bitcode	Do not destroy external linkage when deleting function body	2014-09-23 12:54:19 +00:00
CodeGen	Clear PreferredExtendType for in each function-specific state FunctionLoweringInfo.	2014-09-24 03:22:56 +00:00
DebugInfo	Revert 218406 - Refactor the RelocVisitor::visit method	2014-09-24 21:30:43 +00:00
ExecutionEngine	[MCJIT] Fix some more RuntimeDyld debugging output format specifiers.	2014-09-23 19:20:57 +00:00
IR
IRReader
LineEditor
Linker
LTO
MC	MC: Use @IMGREL instead of @IMGREL32, which we can't parse	2014-09-25 02:09:18 +00:00
Object
Option
ProfileData	llvm-cov: Combine segments that cover the same location	2014-09-25 00:34:18 +00:00
Support	Adding #ifdef around TermColorMutex based on feedback from Craig Topper.	2014-09-24 18:35:58 +00:00
TableGen
Target	[x86] Teach the new vector shuffle lowering to use AVX2 instructions for	2014-09-25 11:03:55 +00:00
Transforms	[asan] don't instrument module CTORs that may be run before asan.module_ctor. This fixes asan running together -coverage	2014-09-24 22:41:55 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile