Michael Kuperstein 1f0ddef593 [DagCombine] Improve DAGCombiner BUILD_VECTOR when it has two sources of elements ... This partially fixes PR21943. For AVX, we go from: vmovq (%rsi), %xmm0 vmovq (%rdi), %xmm1 vpermilps $-27, %xmm1, %xmm2 ## xmm2 = xmm1[1,1,2,3] vinsertps $16, %xmm2, %xmm1, %xmm1 ## xmm1 = xmm1[0],xmm2[0],xmm1[2,3] vinsertps $32, %xmm0, %xmm1, %xmm1 ## xmm1 = xmm1[0,1],xmm0[0],xmm1[3] vpermilps $-27, %xmm0, %xmm0 ## xmm0 = xmm0[1,1,2,3] vinsertps $48, %xmm0, %xmm1, %xmm0 ## xmm0 = xmm1[0,1,2],xmm0[0] To the expected: vmovq (%rdi), %xmm0 vmovhpd (%rsi), %xmm0, %xmm0 retq Fixing this for AVX2 is still open. Differential Revision: http://reviews.llvm.org/D6749 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224759 91177308-0d34-0410-b5e6-96231b3b80d8		2014-12-23 08:59:45 +00:00
..
Analysis	InstSimplify: Don't bother if getScalarSizeInBits returns zero	2014-12-20 04:45:33 +00:00
AsmParser
Bitcode
CodeGen	[DagCombine] Improve DAGCombiner BUILD_VECTOR when it has two sources of elements	2014-12-23 08:59:45 +00:00
DebugInfo	[DebugInfo] Move all DWARF headers to the public include directory.	2014-12-19 18:26:33 +00:00
ExecutionEngine	[C API] Expose LLVMGetGlobalValueAddress and LLVMGetFunctionAddress.	2014-12-22 18:53:11 +00:00
IR	The leak detector is dead, long live asan and valgrind.	2014-12-22 13:00:36 +00:00
IRReader
LineEditor
Linker	Rename MapValue(Metadata*) to MapMetadata()	2014-12-19 06:06:18 +00:00
LTO
MC	Fix Windows unwind info for functions in sections other than .text	2014-12-22 22:10:08 +00:00
Object	Add printing the LC_ROUTINES load commands with llvm-objdump’s -private-headers.	2014-12-19 22:25:22 +00:00
Option
ProfileData
Support
TableGen
Target	[PowerPC] Don't attempt a 64-bit pow2 division on PPC32	2014-12-23 08:38:50 +00:00
Transforms	[SimplifyCFG] Revise common code sinking	2014-12-23 08:26:55 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile