Vector modes under hppa64-hpu

[Joern Rennecke]

>> Well, following up to my own mail, I have a couple of questions.  If I
>> am on a system that does not support the VECTOR modes, should I ever see
>> any rtx with a type of V2SImode?  I don't think I should, but I am
>> not
>
>yes.  It should opencode the V2SI with a pair of SIs.

It should be OK to use V2SImode as long as only subregs of that appear in operands
of insns.  e.g. if the targets supports DImode, you could move a V2SImode value
using DImode.
	
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