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Re: [PATCH][ARM] Improve 64-bit shifts (non-NEON)


On 08/02/12 11:18, Andrew Stubbs wrote:
I've tried to do this, but it can't be done by a straight translation
because we don't have the insns available to do it. As I understand it,
all "predicable" instructions automatically get a cond_exec variant, but
the only if_then_else I could find (it's hard to grep because
if_then_else occurs many times in attributes) is in the conditional move
instruction. Have I missed something?

Ok, I missed the various patterns like if_arith_move.


Unfortunately, these don't work in Thumb mode (no IT block), and I'd have to add arith-shift variants, I think, for ARM mode to work.

Hmmmm ... I'll try again.

Andrew


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