Dana Jansens 4416f3525b Canonicalize generated functions for Core witnesses (#7729) ...

Use a single `SemIR::Function` per `Core` interface method, whether it's
generated locally or imported. This prevents generating duplicate
functions, which lead to different types when the witness appears in a
`FacetValue` as part of a specific for a class.

We use a `CanonicalValueStore` of `GeneratedFunction` objects that allow
finding an existing FunctionId for a `Generated` special function before
(re-)generating it. Mangling for `Generated` functions is also moved to
use the values from the `GeneratedFunction`'s canonicalization key, so
that we have a consistent source of truth for the unique ID of a
`Generated` function across all files.

New tests are in
`toolchain/check/testdata/impl/custom_witness/destroy.carbon`.

2026-09-15 16:02:13 +00:00

..

access.cpp

Don't include expensive Clang headers in widely-included headers (#7319)

2026-06-07 16:27:22 +00:00

access.h

Don't include expensive Clang headers in widely-included headers (#7319)

2026-06-07 16:27:22 +00:00

call.cpp

Add TemplateInst and drop CallCppTemplateAction (#7689)

2026-09-03 17:45:47 +00:00

call.h

Don't include expensive Clang headers in widely-included headers (#7319)

2026-06-07 16:27:22 +00:00

constant.cpp

Fix SemIR not showing insts used to compute FieldDecl type (#7706)

2026-09-02 20:28:05 +00:00

constant.h

Don't include expensive Clang headers in widely-included headers (#7319)

2026-06-07 16:27:22 +00:00

context.cpp

Include the ASTContext header where it's used (#7701)

2026-09-02 17:35:31 +00:00

context.h

Create modules for header imports. (#7613)

2026-08-06 13:32:37 +00:00

custom_type_mapping.cpp

Move C++ interop related check code files to a cpp dir (#6065)

2025-09-17 09:31:36 +00:00

custom_type_mapping.h

Move C++ interop related check code files to a cpp dir (#6065)

2025-09-17 09:31:36 +00:00

diagnostic_consumer.cpp

Add a flag to build a single ASTContext shared across all compilations (#7567)

2026-07-28 00:19:40 +00:00

diagnostic_consumer.h

Add a flag to build a single ASTContext shared across all compilations (#7567)

2026-07-28 00:19:40 +00:00

diagnostic_listener.h

Add a flag to build a single ASTContext shared across all compilations (#7567)

2026-07-28 00:19:40 +00:00

export.cpp

roll llvm to 7024b9e1b423b3c3c6ac76ab6a73cb2c9e4ef842 (#7781)

2026-09-14 21:54:09 +00:00

export.h

Fix clang_decls InstId for generic class export (#7633)

2026-08-13 17:30:20 +00:00

generate_ast.cpp

Remove empty lambda parameter lists (#7760)

2026-09-10 20:10:36 +00:00

generate_ast.h

Create modules for header imports. (#7613)

2026-08-06 13:32:37 +00:00

impl_lookup.cpp

Canonicalize generated functions for Core witnesses (#7729)

2026-09-15 16:02:13 +00:00

impl_lookup.h

adds a field to SemIR::Interface to indicate whether it is a core interface (#7091)

2026-04-24 17:33:23 +00:00

import.cpp

Remove empty lambda parameter lists (#7760)

2026-09-10 20:10:36 +00:00

import.h

Support LP64 platforms such as Darwin where int64_t is long long. (#7596)

2026-08-07 16:10:01 +00:00

location.cpp

Split up C++ diagnostic emitter and factor it out. (#7558)

2026-07-24 20:14:50 +00:00

location.h

Split up C++ diagnostic emitter and factor it out. (#7558)

2026-07-24 20:14:50 +00:00

macros.cpp

Don't crash if a macro expands to an erroneous expression. (#7652)

2026-08-19 00:47:03 +00:00

macros.h

Fix handling of recursive macros. (#7593)

2026-07-31 20:09:03 +00:00

operators.cpp

Canonicalize generated functions for Core witnesses (#7729)

2026-09-15 16:02:13 +00:00

operators.h

Don't form a bound method when calling a C++ operator. (#7345)

2026-06-11 21:49:20 +00:00

overload_resolution.cpp

Don't include expensive Clang headers in widely-included headers (#7319)

2026-06-07 16:27:22 +00:00

overload_resolution.h

Don't include expensive Clang headers in widely-included headers (#7319)

2026-06-07 16:27:22 +00:00

thunk.cpp

Improve ClangDeclStore ergonomics (#7311)

2026-06-05 20:49:34 +00:00

thunk.h

Import C++ ref parameters as ref parameters (#6360)

2025-11-13 17:04:58 +00:00

type_mapping.cpp

Support LP64 platforms such as Darwin where int64_t is long long. (#7596)

2026-08-07 16:10:01 +00:00

type_mapping.h

Add interop support for naming and "calling" C++ templates. (#6474)

2025-12-15 17:45:01 +00:00