Andrea Di Biagio 2360e51fd0 [X86] Add target specific combine rules to fold SSE2/AVX2 packed arithmetic shift intrinsics. ... This patch teaches the backend how to combine packed SSE2/AVX2 arithmetic shift intrinsics. The rules are: - Always fold a packed arithmetic shift by zero to its first operand; - Convert a packed arithmetic shift intrinsic dag node into a ISD::SRA only if the shift count is known to be smaller than the vector element size. This patch also teaches to function 'getTargetVShiftByConstNode' how fold target specific vector shifts by zero. Added two new tests to verify that the DAGCombiner is able to fold sequences of SSE2/AVX2 packed arithmetic shift calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208342 91177308-0d34-0410-b5e6-96231b3b80d8		2014-05-08 17:44:04 +00:00
..
Analysis	Revert "SCEV: Use I = vector<>.erase(I) to iterate and delete at the same time"	2014-05-08 07:55:34 +00:00
AsmParser	IR: Don't allow non-default visibility on local linkage	2014-05-07 22:57:20 +00:00
Bitcode	IR: Don't allow non-default visibility on local linkage	2014-05-07 22:57:20 +00:00
CodeGen	Fix a spelling error	2014-05-08 13:42:57 +00:00
DebugInfo
ExecutionEngine	Back out r208257 while I investigate tester failures.	2014-05-07 23:35:53 +00:00
IR	llvm-cov: Explicitly namespace llvm::make_unique to keep MSVC happy	2014-05-07 16:01:27 +00:00
IRReader
LineEditor
Linker	LTO: Assert visibility of local linkage when merging symbols	2014-05-07 22:55:46 +00:00
LTO	LTO: Check local linkage first	2014-05-07 22:53:14 +00:00
MC	Remove the UseCFI option from createAsmStreamer.	2014-05-07 13:00:43 +00:00
Object	[yaml2obj] Support ELF x86 relocations.	2014-05-07 17:06:38 +00:00
Option
ProfileData
Support	[Support/MemoryBuffer] Remove the assertion that the file size did not shrink.	2014-05-06 23:30:56 +00:00
TableGen	Use a vector of unique_ptrs to fix a memory leak introduced in r208179.	2014-05-08 09:29:28 +00:00
Target	[X86] Add target specific combine rules to fold SSE2/AVX2 packed arithmetic shift intrinsics.	2014-05-08 17:44:04 +00:00
Transforms	Simplify and fix incorrect comment. No functionality change.	2014-05-08 01:08:43 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile