Dana JansensandRichard Smith 0e8d354567 Split the witness table into a separate ImplWitnessTable instruction (#5272) ...

This allows us to import the table for a given impl only once, while we
can import many ImplWitness instructions with different specifics for a
generic impl.

For example in convert_facet_value_to_narrowed_facet_type.carbon we see
that a single witness table is imported for the BitAnd interface, with
multiple witnesses (for different specifics) imported and sharing the
same table.

The ImplWitnessTable now contains a back-link to the Impl the witness is
for, allowing inst namer to name that interface in the textual semir,
and allowing the interface to be found when debugging from a witness.

---------

Co-authored-by: Richard Smith <richard@metafoo.co.uk>

2025-04-11 20:30:04 +00:00

..

basic.carbon

Split the witness table into a separate ImplWitnessTable instruction (#5272)

2025-04-11 20:30:04 +00:00

fail_invalid.carbon

Remove all remaining uses of TypeIds as instruction operands. (#5280)

2025-04-10 20:53:42 +00:00

fail_todo_params.carbon

Split the witness table into a separate ImplWitnessTable instruction (#5272)

2025-04-11 20:30:04 +00:00

generic.carbon

Remove all remaining uses of TypeIds as instruction operands. (#5280)

2025-04-10 20:53:42 +00:00