Nate Begeman bdcb5afb77 ~40% faster vector shl <4 x i32> on SSE 4.1 Larger improvements for smaller types coming in future patches. ... For: define <2 x i64> @shl(<4 x i32> %r, <4 x i32> %a) nounwind readnone ssp { entry: %shl = shl <4 x i32> %r, %a ; <<4 x i32>> [#uses=1] %tmp2 = bitcast <4 x i32> %shl to <2 x i64> ; <<2 x i64>> [#uses=1] ret <2 x i64> %tmp2 } We get: _shl: ## @shl pslld $23, %xmm1 paddd LCPI0_0, %xmm1 cvttps2dq %xmm1, %xmm1 pmulld %xmm1, %xmm0 ret Instead of: _shl: ## @shl pshufd $3, %xmm0, %xmm2 movd %xmm2, %eax pshufd $3, %xmm1, %xmm2 movd %xmm2, %ecx shll %cl, %eax movd %eax, %xmm2 pshufd $1, %xmm0, %xmm3 movd %xmm3, %eax pshufd $1, %xmm1, %xmm3 movd %xmm3, %ecx shll %cl, %eax movd %eax, %xmm3 punpckldq %xmm2, %xmm3 movd %xmm0, %eax movd %xmm1, %ecx shll %cl, %eax movd %eax, %xmm2 movhlps %xmm0, %xmm0 movd %xmm0, %eax movhlps %xmm1, %xmm1 movd %xmm1, %ecx shll %cl, %eax movd %eax, %xmm0 punpckldq %xmm0, %xmm2 movdqa %xmm2, %xmm0 punpckldq %xmm3, %xmm0 ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109549 91177308-0d34-0410-b5e6-96231b3b80d8		2010-07-27 22:37:06 +00:00
..
Alpha
ARM	Currently EH lowering code expects typeinfo to be global only.	2010-07-26 18:45:39 +00:00
Blackfin	Remove TargetInstrInfo::copyRegToReg entirely.	2010-07-11 17:01:17 +00:00
CBackend
CellSPU	Remove many calls to TII::isMoveInstr. Targets should be producing COPY anyway.	2010-07-16 04:45:42 +00:00
CPP
Generic	Fix a crash in the dag combiner caused by ConstantFoldBIT_CONVERTofBUILD_VECTOR calling itself	2010-07-27 18:02:18 +00:00
MBlaze
Mips	Fix PR7174, a couple o Mips fixes:	2010-07-20 08:37:04 +00:00
MSP430
PIC16
PowerPC	Consider this function:	2010-07-16 22:51:10 +00:00
SPARC
SystemZ	SystemZ really does mean "has calls" and not just "adjusts stack." Go ahead and	2010-05-14 22:17:42 +00:00
Thumb	Feed the right output into FileCheck.	2010-07-16 10:58:02 +00:00
Thumb2	update tests for smarter BIC usage	2010-07-20 16:16:48 +00:00
X86	~40% faster vector shl <4 x i32> on SSE 4.1 Larger improvements for smaller types coming in future patches.	2010-07-27 22:37:06 +00:00
XCore