Richard Smith 39fd358059 Map Carbon value expressions to const-qualified C++ prvalues. (#6880) ...

In C++ overload resolution, when mapping a Carbon value expression into
a C++ argument, produce a const-qualified argument where possible. This
has two effects:

* Overload resolution does not consider non-const-qualified member
functions to be viable for a prvalue self any more. This is desirable
since such functions are not actually callable with a prvalue self, and
permits overload resolution to pick a const-qualified overload instead.

* Overload resolution does not allow a Carbon value expression to be
passed to a C++ `T&&` parameter any more. This is desirable since it's
not correct to move from a value expression. Previously we allowed this
and moved from the value!

2026-03-11 03:42:19 +00:00

..

class

Map Carbon value expressions to const-qualified C++ prvalues. (#6880)

2026-03-11 03:42:19 +00:00

enum

Remove index fields from ParamPatterns (#6815)

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

function

Map Carbon value expressions to const-qualified C++ prvalues. (#6880)

2026-03-11 03:42:19 +00:00

impls

Map Carbon value expressions to const-qualified C++ prvalues. (#6880)

2026-03-11 03:42:19 +00:00

stdlib

Remove InitForm::index (#6817)

2026-03-06 17:35:48 +00:00

template

Handle pack expansion for dependent non-type template params (#6850)

2026-03-09 14:49:31 +00:00

var

Implement unused pattern bindings, continued (#6518)

2026-02-19 23:33:36 +00:00

bad_flags.carbon

Don't crash if clang setup fails. (#6804)

2026-02-27 02:44:08 +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

Remove index fields from ParamPatterns (#6815)

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

builtins.llp64.carbon

Remove ValueParamPattern case from deduction (#6869)

2026-03-10 21:15:38 +00:00

builtins.lp64.carbon

Remove ValueParamPattern case from deduction (#6869)

2026-03-10 21:15:38 +00:00

constexpr.carbon

Support floats in MapAPValueToConstant (#6800)

2026-02-26 19:48:19 +00:00

cpp_diagnostics.carbon

Don't crash if clang setup fails. (#6804)

2026-02-27 02:44:08 +00:00

cpp_namespace.carbon

Make semir scope labels only print when non-empty (#6780)

2026-02-25 00:28:59 +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

import.carbon

Format the InterfaceWithSelf and NamedConstraintWithSelf generic name with its ".WithSelf" suffix (#6798)

2026-02-27 13:50:56 +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

Make semir scope labels only print when non-empty (#6780)

2026-02-25 00:28:59 +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

Support conversion between integer types. (#6856)

2026-03-10 01:40:16 +00:00

modules.carbon

Update LLVM to a more recent commit (#6771)

2026-02-23 20:30:55 +00:00

multiple_imports.carbon

Make semir scope labels only print when non-empty (#6780)

2026-02-25 00:28:59 +00:00

namespace.carbon

Skip C++ types when generating Destroy witnesses (#6732)

2026-02-14 00:43:11 +00:00

typedef.carbon

Make Destroy.Op functions able to have a body (#6729)

2026-03-02 17:57:31 +00:00

unsupported_decl_type.carbon

Form-aware textual format for return parameters and arguments (#6588)

2026-01-14 23:27:21 +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

Format the InterfaceWithSelf and NamedConstraintWithSelf generic name with its ".WithSelf" suffix (#6798)

2026-02-27 13:50:56 +00:00

void.carbon

Implement unused pattern bindings, continued (#6518)

2026-02-19 23:33:36 +00:00