Matt Turner <matts...@gmail.com> writes: > From: Jason Ekstrand <ja...@jlekstrand.net> > > This adds a parent_instr field similar to the one for ssa_def. The > difference here is that the parent_instr field on a nir_register can be > NULL if the register does not have a unique definition or if that > definition does not dominate all its uses. We set this field in the > out-of-SSA pass so that backends can get SSA-like information even after > they have gone out of SSA.
This will be useful for me, too, for similar multi-step multiply code. Reviewed-by: Eric Anholt <e...@anholt.net>
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