Matt Arsenault 068808d102 AMDGPU: Don't assume call targets are registers ...

GlobalISel let through a call to null, which would then fold into the
source operand like any other inline immediate. The SelectionDAG
lowering deletes calls to null and undef as a workaround from before
calls were supported. We should probably drop the special handling
case in the DAG lowering now, since the middle end optimizers delete
null calls anyway.

2020-07-28 20:46:06 -04:00

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