[LLVMdev] vselect on ARM/NEON

Jim Grosbach grosbach at apple.com
Thu Oct 11 11:05:07 PDT 2012

Seems reasonable to me. Plain 'SELECT' is already marked expand for vector types. I bet that just didn't get updates when VSELECT was introduced.


On Oct 11, 2012, at 10:25 AM, Peter Couperus <peter.couperus at st.com> wrote:

> Hello,
> We've run into a couple of cases where we'd like to use select on vector types, but vselect handling is absent from the ARM backend.
> Would there be any potential harm by marking VSELECT as Expand on ARM targets with NEON?
> Adding this seems to fix the following PR's:
> http://llvm.org/bugs/show_bug.cgi?id=13831
> http://llvm.org/bugs/show_bug.cgi?id=13961
> Thanks!
> Pete
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