Geoff Romer 505b1c86b9 Initial support for return forms (#6556) ...

The main changes here are:
- Introducing `InitForm` and `RefForm` to represent initializing and
reference forms (the two return forms currently supported by the
parser).
- Introducing the `FormType` singleton inst to represent their type
(i.e. `Core.Form`).
- Emitting an inst representing a function's declared return form as
part of handling the function signature.

The return form inst is currently ignored. Subsequent PRs will expose it
in `SemIR::Function` and use it to determine the form of call
expressions.

2026-01-07 00:54:18 +00:00

..

class

Initial support for return forms (#6556)

2026-01-07 00:54:18 +00:00

enum

Change Destroy to use a CustomWitness instead of a blanket impl (#6512)

2025-12-19 18:36:06 +00:00

function

Model ref tags as insts instead of annotations (#6541)

2026-01-05 22:24:47 +00:00

impls

When importing a trivial destructor from C++, produce a no_op builtin. (#6531)

2025-12-23 05:30:29 +00:00

stdlib

Initial support for return forms (#6556)

2026-01-07 00:54:18 +00:00

template

Support for passing C++ templates as arguments to template template parameters. (#6475)

2025-12-16 19:00:49 +00:00

bad_import.carbon

Support import Cpp; to import Cpp namespace for using C++ builtins (#6320)

2025-11-06 08:45:28 +00:00

builtins.carbon

Change Destroy to use a CustomWitness instead of a blanket impl (#6512)

2025-12-19 18:36:06 +00:00

builtins.llp64.carbon

Change Destroy to use a CustomWitness instead of a blanket impl (#6512)

2025-12-19 18:36:06 +00:00

builtins.lp64.carbon

Change Destroy to use a CustomWitness instead of a blanket impl (#6512)

2025-12-19 18:36:06 +00:00

cpp_diagnostics.carbon

Support import Cpp inline "some code";. (#5904)

2025-08-05 23:03:32 +00:00

cpp_namespace.carbon

Consolidate default Clang argument handling (#6545)

2026-01-03 17:35:29 +00:00

fail_fuzzing.carbon

Require file tests to specify a min-prelude (#5818)

2025-07-18 16:26:12 +00:00

fail_todo_arithmetic_types_unmapped.carbon

Add CppCompat.ULong32, CppCompat.LongLong64 and CppCompat.ULongLong64 (#6386)

2025-11-26 16:51:22 +00:00

file_not_found.carbon

Improve mapping of Clang diagnostics into Carbon diagnostics (#5894)

2025-08-01 01:24:31 +00:00

globals.carbon

Finish renaming BindName and related insts. (#6281)

2025-10-28 17:17:38 +00:00

import.carbon

Change Destroy to use a CustomWitness instead of a blanket impl (#6512)

2025-12-19 18:36:06 +00:00

include_paths.carbon

Interop: support all C++ integer types that map to intN_t or uintN_t. (#5836)

2025-07-22 21:29:09 +00:00

include.carbon

Introduce the none.carbon min-prelude (#5694)

2025-06-18 20:45:46 +00:00

inline.carbon

Properly set the name for C++ overload set instructions in SemIR (#6156)

2025-10-06 07:36:28 +00:00

macros.carbon

Change Destroy to use a CustomWitness instead of a blanket impl (#6512)

2025-12-19 18:36:06 +00:00

modules.carbon

Delay finishing the C++ translation unit until we reach the real EOF. (#6489)

2025-12-13 00:56:30 +00:00

multiple_imports.carbon

Introduce the none.carbon min-prelude (#5694)

2025-06-18 20:45:46 +00:00

namespace.carbon

Change Destroy to use a CustomWitness instead of a blanket impl (#6512)

2025-12-19 18:36:06 +00:00

typedef.carbon

Change Destroy to use a CustomWitness instead of a blanket impl (#6512)

2025-12-19 18:36:06 +00:00

unsupported_decl_type.carbon

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

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

unused_internal.carbon

Delay finishing the C++ translation unit until we reach the real EOF. (#6489)

2025-12-13 00:56:30 +00:00

void_pointer.carbon

Change the package namespace to use the package name (#6495)

2025-12-16 01:33:53 +00:00

void.carbon

Replace builtin CppVoidType with a prelude type. (#6403)

2025-11-19 20:40:17 +00:00