Andy Kaylor d815e8448f [CIR] Implement simple folding for integer casts (#174861) ...

This extends the CastOp folder to handle integral casts between
different integer types. This only handles scalar values at this time.

This is in preparation for a change that will attempt to fold casts as
they are generated, but this change only performs the folding via the
cir-canonicalize pass.

2026-01-07 14:46:47 -08:00

452 B

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