weiguozhi 9424f3dcc5 [InstCombine] Extend folding of aggregate construction to cases when source aggregates are partially available (#100828) ...

Function foldAggregateConstructionIntoAggregateReuse can fold
  insertvalue(phi(extractvalue(src1), extractvalue(src2)))
into
  phi(src1, src2)
when we can find source aggregates in all predecessors.

This patch extends it to handle following case
  insertvalue(phi(extractvalue(src1), elm2))
into
  phi(src1, insertvalue(elm2))
with the condition that the predecessor without source aggregate has
only one successor.

2024-11-21 08:34:27 -08:00

130 KiB

Raw Blame History

View Raw