On 15 March 2011 13:30, Richard Sandiford <richard.sandif...@linaro.org>wrote:
> Ira Rosen <i...@il.ibm.com> writes: > >> > How do you distinguish between "multiple structures" and "single > > structure > >> > to all lanes"? > >> > >> Sorry, I'm not sure I understand the question. Could you give a couple > >> of examples? > > > > Sorry, I guess I just don't understand the syntax. I meant to ask about > > three different types of vld/vst. For example, vld3 can be > > (1) multiple 3-element structures: loads multiple 3-element structures > into > > 3 registers > > (2) single 3-element structure to one lane: loads one 3-element structure > > into corresponding elements of 3 registers > > (3) single 3-element structure to all lanes: loads one 3-element > structure > > into all lanes of 3 registers. > > > > I understood that __builtin_load_lanes implements (1) and > > __builtin_load_lane implements (2), is that correct? And what function > > corresponds to (3)? __builtin_load_lanes? > > Sorry, my bad. Like you say, I suppose the two options are to > (a) overload __builtin_load_lanes or (b) have a third built-in function. > And as you imply, I suppose (b) is going to be less confusing. > Yes, I prefer (b) :) > > Do you have any suggestions for names? __builtin_load_replicate? > Sounds good. Ira > > Richard > > _______________________________________________ > linaro-toolchain mailing list > linaro-toolchain@lists.linaro.org > http://lists.linaro.org/mailman/listinfo/linaro-toolchain >
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