Bob Wilson f20700ca77 SelectionDAG shuffle nodes do not allow operands with different numbers of ... elements than the result vector type. So, when an instruction like: %8 = shufflevector <2 x float> %4, <2 x float> %7, <4 x i32> <i32 1, i32 0, i32 3, i32 2> is translated to a DAG, each operand is changed to a concat_vectors node that appends 2 undef elements. That is: shuffle [a,b], [c,d] is changed to: shuffle [a,b,u,u], [c,d,u,u] That's probably the right thing for x86 but for NEON, we'd much rather have: shuffle [a,b,c,d], undef Teach the DAG combiner how to do that transformation for ARM. Radar 8597007. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117482 91177308-0d34-0410-b5e6-96231b3b80d8		2010-10-27 20:38:28 +00:00
..
Alpha	PR7774: Fix undefined shifts in Alpha backend. As a bonus, this actually	2010-08-01 21:13:28 +00:00
ARM	SelectionDAG shuffle nodes do not allow operands with different numbers of	2010-10-27 20:38:28 +00:00
Blackfin	Remove TargetInstrInfo::copyRegToReg entirely.	2010-07-11 17:01:17 +00:00
CBackend
CellSPU	Change v64 datalayout in SPU.	2010-10-26 10:45:47 +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	Recommit 116986 with capitalization typo fixed.	2010-10-21 03:57:26 +00:00
Mips	Enable machine sinking critical edge splitting. e.g.	2010-09-20 22:52:00 +00:00
MSP430	CombinerAA is now reordering these stores.	2010-09-20 20:56:29 +00:00
PowerPC	PowerPC varargs functions store live-in registers on the stack. Make sure we use	2010-10-11 20:43:09 +00:00
PTX	Add test case mov.ll for PTX device function	2010-10-19 13:21:51 +00:00
SPARC
SystemZ	Correct bogus module triple specifications.	2010-08-30 10:48:29 +00:00
Thumb	Try again to disable critical edge splitting in CodeGenPrepare.	2010-09-30 20:51:52 +00:00
Thumb2	More accurate estimate / tracking of register pressure.	2010-10-20 22:03:58 +00:00
X86	An stdcall function calling a non-stdcall function	2010-10-25 22:17:05 +00:00
XCore	Enable machine sinking critical edge splitting. e.g.	2010-09-20 22:52:00 +00:00
thumb2-mul.ll	Enable target-specific mul-lowering on ARM, even at -Os. Remove a test that this makes	2010-09-21 22:51:46 +00:00