Tomas Matheson 9a390d6692 [AArch64][GISel] fix G_ADD*/G_SUB* legalization ...

widenScalarDst updates the insert point to after MI, so
widenScalarSrc must be called before widenScalarDst. Otherwise
The updated Src values will appear after MI and break SSA. e.g.:

  %14:_(s64), %15:_(s1) = G_UADDE %9:_, %11:_, %13:_

becomes

  %14:_(s64), %16:_(s32) = G_UADDE %9:_, %11:_, %17:_
  %15:_(s1) = G_TRUNC %16:_(s32)
  %17:_(s32) = G_ZEXT %13:_(s1)

Differential Revision: https://reviews.llvm.org/D132547

Change-Id: Ie3458747a6879433f4d5ab9939d2bd102dd0f2db

2022-08-30 10:59:32 +01:00

279 KiB

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