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Nate Chandler aa49b8540d [TypeLowering] Record packs used in signatures.

To determine whether an instruction may require pack metadata, the types
of its operands are examined.

Previously, the top level type was checked for having a pack in its
signature, and the whole type was checked for having a type anywhere in
its layout (via TypeLowering).  This didn't account for the case where
the metadata was required for a resilient type which uses a pack in its
signature.

Here, during type lowering, a type having a pack in its signature is
counted towards the type having a pack.

Fixes a compiler crash.

rdar://147207926

2025-05-20 16:53:28 -07:00

Inputs

Gardening: Migrate test suite to GH issues: validation-test/IRGen

2022-09-19 22:52:07 +03:00

98995607.swift.gyb

Fix metadata availability testing for parameterized existentials

2024-02-29 22:14:49 -05:00

gh72536.swift

[IRGen] Deadends don't need dealloc_pack_metadata.

2024-04-24 07:24:20 -07:00

issue-49393.swift

Tests: Use a more natural spelling for ABI triple lit substitutions.