Jeffrey Byrnes dc8ea046a5 [AMDGPU] Do not use original PHIs in coercion chains (#98063) ...

It's possible that we are unable to coerce all the incoming values of a
PHINode (A). Thus, we are unable to coerce the PHINode. In this
situation, we previously would add the PHINode back to the ValMap. This
would cause a problem is PhiNode (B) was a user of A. In this scenario,
if B has been coerced, we would hit an assert regarding the incompatible
type between the PHINode and its incoming value.

Deleting non-coerced PHINodes from the map, and propagating the removal
to users, resolves the issue.

2024-07-10 11:32:45 -07:00

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