Bruno Cardoso Lopes 3b86598cfa Instead of always leaving the work to the generic legalizer when ... there is no support for native 256-bit shuffles, be more smart in some cases, for example, when you can extract specific 128-bit parts and use regular 128-bit shuffles for them. Example: For this shuffle: shufflevector <4 x i64> %a, <4 x i64> %b, <4 x i32> <i32 1, i32 0, i32 7, i32 6> This was expanded to: vextractf128 $1, %ymm1, %xmm2 vpextrq $0, %xmm2, %rax vmovd %rax, %xmm1 vpextrq $1, %xmm2, %rax vmovd %rax, %xmm2 vpunpcklqdq %xmm1, %xmm2, %xmm1 vpextrq $0, %xmm0, %rax vmovd %rax, %xmm2 vpextrq $1, %xmm0, %rax vmovd %rax, %xmm0 vpunpcklqdq %xmm2, %xmm0, %xmm0 vinsertf128 $1, %xmm1, %ymm0, %ymm0 ret Now we get: vshufpd $1, %xmm0, %xmm0, %xmm0 vextractf128 $1, %ymm1, %xmm1 vshufpd $1, %xmm1, %xmm1, %xmm1 vinsertf128 $1, %xmm1, %ymm0, %ymm0 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137733 91177308-0d34-0410-b5e6-96231b3b80d8		2011-08-16 18:21:54 +00:00
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Alpha
ARM	Fix this test to avoid leaving a temporary file behind.	2011-08-15 20:55:03 +00:00
Blackfin
CBackend	Revert r137134. It breaks some code as Eli pointed out.	2011-08-09 18:56:35 +00:00
CellSPU
CPP
Generic
MBlaze
Mips	Add test case for r137711.	2011-08-16 17:32:01 +00:00
MSP430
PowerPC
PTX
SPARC
SystemZ
Thumb
Thumb2
X86	Instead of always leaving the work to the generic legalizer when	2011-08-16 18:21:54 +00:00
XCore