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12ddfb9c7c1010fa209e41f86f0ddbc24301f929
carbon-lang/toolchain/check/testdata/interop/cpp/function/inline.carbon
T
Ivana Ivanovska 12ddfb9c7c [Carbon/C++ interop] Add support for C++ overloaded functions (#5891) 
As proposed in [Carbon: C++ interop for overloaded functions and
function
templates](https://docs.google.com/document/d/1KUxumZtNe3mY3TsjW2s_ZADOlAaFlrtsLKHVILtqIaM/edit?tab=t.0),
Clang is used to perform the overload resolution using C++ rules, when
an overloaded C++ set is called from Carbon. Once a function is
selected, it's converted into a Carbon function and called using the
Carbon rules including argument conversions.

A single non-templated function is treated the same way as an overload
set and the same rules apply for its call.
Template functions are not supported yet.

Demo:

a) Non-templated function calls:

```c++
// --- overloads.h

auto foo(int a, short b) -> void;
auto foo(double a) -> void;
auto foo(int a) -> void;
```

```c++
// overloads.cpp

#include "overloads.h"
#include <cstdio>

auto foo(int a, short b) -> void {
  printf("hello from foo_int_short(%d, %d) \n", a, b);
}
auto foo(double a) -> void { printf("hello from foo_double(%f) \n", a); }
auto foo(int a) -> void { printf("hello from foo_int(%d) \n", a); }
```
```c++
library "Main";

import Cpp library "overloads.h";

fn Run() -> i32 {
  Cpp.foo(1.1 as f64);
  return 0;
}
```
```
$ clang -c overloads.cpp 
$ bazel-bin/toolchain/carbon compile main.carbon
$ bazel-bin/toolchain/carbon link overloads.o main.o --output=demo
$ ./demo
hello from foo_double(1.100000) 
```

b) Constructors:
```c++
// --- constructor_overloads.h
class C {
 public:
  C();
  C(int a, int b);
};
```

```c++
// constructor_overloads.cpp
#include "constructor_overloads.h"
#include <cstdio>

C::C() { printf("hello from C() \n"); }
C::C(int a, int b) { printf("hello from C(%d, %d) \n", a, b); }
```
```c++
library "Main";

import Cpp library "constructor_overloads.h";

fn Run() -> i32 {
  let c1: Cpp.C = Cpp.C.C();
  let c2: Cpp.C = Cpp.C.C(1, 2);
  return 0;
}
```

```
$ clang -c constructor_overloads.cpp 
$ bazel-bin/toolchain/carbon compile main.carbon
$ bazel-bin/toolchain/carbon link constructor_overloads.o main.o \--output=demo
$ ./demo
hello from C() 
hello from C(1, 2) 
```


Follow-ups:

- `Cpp.foo({})` - proper handling of struct literals as call args.
- Fix access for overloaded sets.
- Fix tests:
- Method calls: `error: missing object argument in method call
[MissingObjectInMethodCall]` in tests.
    - Fix `toolchain/check/testdata/interop/cpp/import.carbon` test.
    - Fix `enums` support.
    - Fix `str` -> `std::string_view` mapping.


Part of #5915
2025-09-15 12:29:49 +00:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interop/cpp/function/inline.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interop/cpp/function/inline.carbon
// ============================================================================
// With definition
// ============================================================================
// --- with_definition.h
inline void foo() {}
// --- import_with_definition.carbon
library "[[@TEST_NAME]]";
import Cpp library "with_definition.h";
fn MyF() {
//@dump-sem-ir-begin
Cpp.foo();
//@dump-sem-ir-end
}
// ============================================================================
// Without definition
// ============================================================================
// --- without_definition.h
inline void foo();
// --- todo_fail_import_without_definition.carbon
library "[[@TEST_NAME]]";
import Cpp library "without_definition.h";
fn MyF() {
//@dump-sem-ir-begin
// TODO: Error on using an inline function without definition.
Cpp.foo();
// Don't error on repeated calls.
Cpp.foo();
//@dump-sem-ir-end
}
// ============================================================================
// automatic return type
// ============================================================================
// --- automatic_return_type.carbon
library "[[@TEST_NAME]]";
import Cpp inline '''
inline auto WithoutThunk(int) -> auto { return 0; }
inline auto ThunkOnArg(short) -> auto { return 0; }
inline auto ThunkOnReturn(int) -> auto { short x = 0; return x; }
inline auto ThunkOnBoth(short) -> auto { short x = 0; return x; }
''';
fn MyF() {
//@dump-sem-ir-begin
let r1: i32 = Cpp.WithoutThunk(1);
let r2: i32 = Cpp.ThunkOnArg(1);
let r3: i16 = Cpp.ThunkOnReturn(1);
let r4: i16 = Cpp.ThunkOnBoth(1);
//@dump-sem-ir-end
}
// CHECK:STDOUT: --- import_with_definition.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %.c5d: type = cpp_overload_set_type @foo [concrete]
// CHECK:STDOUT: %empty_struct: %.c5d = struct_value () [concrete]
// CHECK:STDOUT: %foo.type: type = fn_type @foo [concrete]
// CHECK:STDOUT: %foo: %foo.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .foo = %.a21
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %.a21: %.c5d = cpp_overload_set_value @foo [concrete = constants.%empty_struct]
// CHECK:STDOUT: %foo.decl: %foo.type = fn_decl @foo [concrete = constants.%foo] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MyF() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %foo.ref: %.c5d = name_ref foo, imports.%.a21 [concrete = constants.%empty_struct]
// CHECK:STDOUT: %foo.call: init %empty_tuple.type = call imports.%foo.decl()
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- todo_fail_import_without_definition.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %.c5d: type = cpp_overload_set_type @foo [concrete]
// CHECK:STDOUT: %empty_struct: %.c5d = struct_value () [concrete]
// CHECK:STDOUT: %foo.type: type = fn_type @foo [concrete]
// CHECK:STDOUT: %foo: %foo.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .foo = %.a21
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %.a21: %.c5d = cpp_overload_set_value @foo [concrete = constants.%empty_struct]
// CHECK:STDOUT: %foo.decl: %foo.type = fn_decl @foo [concrete = constants.%foo] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MyF() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Cpp.ref.loc9: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %foo.ref.loc9: %.c5d = name_ref foo, imports.%.a21 [concrete = constants.%empty_struct]
// CHECK:STDOUT: %foo.call.loc9: init %empty_tuple.type = call imports.%foo.decl()
// CHECK:STDOUT: %Cpp.ref.loc12: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %foo.ref.loc12: %.c5d = name_ref foo, imports.%.a21 [concrete = constants.%empty_struct]
// CHECK:STDOUT: %foo.call.loc12: init %empty_tuple.type = call imports.%foo.decl()
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- automatic_return_type.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT: %N: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %pattern_type.7ce: type = pattern_type %i32 [concrete]
// CHECK:STDOUT: %.fef: type = cpp_overload_set_type @Int.as.ImplicitAs.impl.Convert [concrete]
// CHECK:STDOUT: %empty_struct.e92: %.fef = struct_value () [concrete]
// CHECK:STDOUT: %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
// CHECK:STDOUT: %WithoutThunk.type: type = fn_type @WithoutThunk [concrete]
// CHECK:STDOUT: %WithoutThunk: %WithoutThunk.type = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.type.e8c: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
// CHECK:STDOUT: %ImplicitAs.Convert.type.1b6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i32) [concrete]
// CHECK:STDOUT: %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.f01: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e = struct_value () [symbolic]
// CHECK:STDOUT: %ImplicitAs.impl_witness.acc: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.592: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.9ec = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.facet.e4d: %ImplicitAs.type.e8c = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.acc) [concrete]
// CHECK:STDOUT: %.7ea: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.e4d [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.592 [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn.ab7: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.592, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
// CHECK:STDOUT: %bound_method.b59: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn.ab7 [concrete]
// CHECK:STDOUT: %int_1.5d2: %i32 = int_value 1 [concrete]
// CHECK:STDOUT: %.281: type = cpp_overload_set_type @ThunkOnArg [concrete]
// CHECK:STDOUT: %empty_struct.a11: %.281 = struct_value () [concrete]
// CHECK:STDOUT: %int_16: Core.IntLiteral = int_value 16 [concrete]
// CHECK:STDOUT: %i16: type = class_type @Int, @Int(%int_16) [concrete]
// CHECK:STDOUT: %pattern_type.2f8: type = pattern_type %i16 [concrete]
// CHECK:STDOUT: %ptr.251: type = ptr_type %i16 [concrete]
// CHECK:STDOUT: %ThunkOnArg__carbon_thunk.type: type = fn_type @ThunkOnArg__carbon_thunk [concrete]
// CHECK:STDOUT: %ThunkOnArg__carbon_thunk: %ThunkOnArg__carbon_thunk.type = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.type.9fb: type = facet_type <@ImplicitAs, @ImplicitAs(%i16)> [concrete]
// CHECK:STDOUT: %ImplicitAs.Convert.type.fa6: type = fn_type @ImplicitAs.Convert, @ImplicitAs(%i16) [concrete]
// CHECK:STDOUT: %ImplicitAs.impl_witness.43c: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.b6b, @Core.IntLiteral.as.ImplicitAs.impl(%int_16) [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.346: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_16) [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.1f1: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.346 = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.facet.fa2: %ImplicitAs.type.9fb = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.43c) [concrete]
// CHECK:STDOUT: %.8df: type = fn_type_with_self_type %ImplicitAs.Convert.type.fa6, %ImplicitAs.facet.fa2 [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.34d: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.1f1 [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn.e3b: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.1f1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_16) [concrete]
// CHECK:STDOUT: %bound_method.dd7: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn.e3b [concrete]
// CHECK:STDOUT: %int_1.f90: %i16 = int_value 1 [concrete]
// CHECK:STDOUT: %Copy.type: type = facet_type <@Copy> [concrete]
// CHECK:STDOUT: %Copy.Op.type: type = fn_type @Copy.Op [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.857: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%N) [symbolic]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.6aa: %Int.as.Copy.impl.Op.type.857 = struct_value () [symbolic]
// CHECK:STDOUT: %Copy.impl_witness.52b: <witness> = impl_witness imports.%Copy.impl_witness_table.f59, @Int.as.Copy.impl(%int_16) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.520: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%int_16) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.9da: %Int.as.Copy.impl.Op.type.520 = struct_value () [concrete]
// CHECK:STDOUT: %Copy.facet.fd9: %Copy.type = facet_value %i16, (%Copy.impl_witness.52b) [concrete]
// CHECK:STDOUT: %.79d: type = fn_type_with_self_type %Copy.Op.type, %Copy.facet.fd9 [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.bound: <bound method> = bound_method %int_1.f90, %Int.as.Copy.impl.Op.9da [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Copy.impl.Op.9da, @Int.as.Copy.impl.Op(%int_16) [concrete]
// CHECK:STDOUT: %bound_method.efc: <bound method> = bound_method %int_1.f90, %Int.as.Copy.impl.Op.specific_fn [concrete]
// CHECK:STDOUT: %.3ed: type = cpp_overload_set_type @ThunkOnArg__carbon_thunk [concrete]
// CHECK:STDOUT: %empty_struct.232: %.3ed = struct_value () [concrete]
// CHECK:STDOUT: %ThunkOnReturn__carbon_thunk.type: type = fn_type @ThunkOnReturn__carbon_thunk [concrete]
// CHECK:STDOUT: %ThunkOnReturn__carbon_thunk: %ThunkOnReturn__carbon_thunk.type = struct_value () [concrete]
// CHECK:STDOUT: %.a8c: type = cpp_overload_set_type @Copy.Op [concrete]
// CHECK:STDOUT: %empty_struct.258: %.a8c = struct_value () [concrete]
// CHECK:STDOUT: %ThunkOnBoth__carbon_thunk.type: type = fn_type @ThunkOnBoth__carbon_thunk [concrete]
// CHECK:STDOUT: %ThunkOnBoth__carbon_thunk: %ThunkOnBoth__carbon_thunk.type = struct_value () [concrete]
// CHECK:STDOUT: %Int.as.Destroy.impl.Op.type.135: type = fn_type @Int.as.Destroy.impl.Op, @Int.as.Destroy.impl(%int_16) [concrete]
// CHECK:STDOUT: %Int.as.Destroy.impl.Op.718: %Int.as.Destroy.impl.Op.type.135 = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .WithoutThunk = %.1bd
// CHECK:STDOUT: .ThunkOnArg = %.c9b
// CHECK:STDOUT: .ThunkOnReturn = %.d87
// CHECK:STDOUT: .ThunkOnBoth = %.db9
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %.1bd: %.fef = cpp_overload_set_value @Int.as.ImplicitAs.impl.Convert [concrete = constants.%empty_struct.e92]
// CHECK:STDOUT: %WithoutThunk.decl: %WithoutThunk.type = fn_decl @WithoutThunk [concrete = constants.%WithoutThunk] {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: } {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import_ref.428: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.49e) = import_ref Core//prelude/parts/int, loc23_39, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f01)]
// CHECK:STDOUT: %ImplicitAs.impl_witness_table.b6b = impl_witness_table (%Core.import_ref.428), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
// CHECK:STDOUT: %.c9b: %.281 = cpp_overload_set_value @ThunkOnArg [concrete = constants.%empty_struct.a11]
// CHECK:STDOUT: %ThunkOnArg__carbon_thunk.decl: %ThunkOnArg__carbon_thunk.type = fn_decl @ThunkOnArg__carbon_thunk [concrete = constants.%ThunkOnArg__carbon_thunk] {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: } {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import_ref.b3c: @Int.as.Copy.impl.%Int.as.Copy.impl.Op.type (%Int.as.Copy.impl.Op.type.857) = import_ref Core//prelude/parts/int, loc17_31, loaded [symbolic = @Int.as.Copy.impl.%Int.as.Copy.impl.Op (constants.%Int.as.Copy.impl.Op.6aa)]
// CHECK:STDOUT: %Copy.impl_witness_table.f59 = impl_witness_table (%Core.import_ref.b3c), @Int.as.Copy.impl [concrete]
// CHECK:STDOUT: %.d87: %.3ed = cpp_overload_set_value @ThunkOnArg__carbon_thunk [concrete = constants.%empty_struct.232]
// CHECK:STDOUT: %ThunkOnReturn__carbon_thunk.decl: %ThunkOnReturn__carbon_thunk.type = fn_decl @ThunkOnReturn__carbon_thunk [concrete = constants.%ThunkOnReturn__carbon_thunk] {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: } {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT: %.db9: %.a8c = cpp_overload_set_value @Copy.Op [concrete = constants.%empty_struct.258]
// CHECK:STDOUT: %ThunkOnBoth__carbon_thunk.decl: %ThunkOnBoth__carbon_thunk.type = fn_decl @ThunkOnBoth__carbon_thunk [concrete = constants.%ThunkOnBoth__carbon_thunk] {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: } {
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MyF() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %r1.patt: %pattern_type.7ce = binding_pattern r1 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Cpp.ref.loc13: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %WithoutThunk.ref: %.fef = name_ref WithoutThunk, imports.%.1bd [concrete = constants.%empty_struct.e92]
// CHECK:STDOUT: %int_1.loc13: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
// CHECK:STDOUT: %impl.elem0.loc13: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
// CHECK:STDOUT: %bound_method.loc13_34.1: <bound method> = bound_method %int_1.loc13, %impl.elem0.loc13 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
// CHECK:STDOUT: %specific_fn.loc13: <specific function> = specific_function %impl.elem0.loc13, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn.ab7]
// CHECK:STDOUT: %bound_method.loc13_34.2: <bound method> = bound_method %int_1.loc13, %specific_fn.loc13 [concrete = constants.%bound_method.b59]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13: init %i32 = call %bound_method.loc13_34.2(%int_1.loc13) [concrete = constants.%int_1.5d2]
// CHECK:STDOUT: %.loc13_34.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc13 [concrete = constants.%int_1.5d2]
// CHECK:STDOUT: %.loc13_34.2: %i32 = converted %int_1.loc13, %.loc13_34.1 [concrete = constants.%int_1.5d2]
// CHECK:STDOUT: %WithoutThunk.call: init %i32 = call imports.%WithoutThunk.decl(%.loc13_34.2)
// CHECK:STDOUT: %.loc13_11: type = splice_block %i32.loc13 [concrete = constants.%i32] {
// CHECK:STDOUT: %int_32.loc13: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc13: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc13_35.1: %i32 = value_of_initializer %WithoutThunk.call
// CHECK:STDOUT: %.loc13_35.2: %i32 = converted %WithoutThunk.call, %.loc13_35.1
// CHECK:STDOUT: %r1: %i32 = bind_name r1, %.loc13_35.2
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %r2.patt: %pattern_type.7ce = binding_pattern r2 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Cpp.ref.loc14: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %ThunkOnArg.ref: %.281 = name_ref ThunkOnArg, imports.%.c9b [concrete = constants.%empty_struct.a11]
// CHECK:STDOUT: %int_1.loc14: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
// CHECK:STDOUT: %impl.elem0.loc14_32.1: %.8df = impl_witness_access constants.%ImplicitAs.impl_witness.43c, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.1f1]
// CHECK:STDOUT: %bound_method.loc14_32.1: <bound method> = bound_method %int_1.loc14, %impl.elem0.loc14_32.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.34d]
// CHECK:STDOUT: %specific_fn.loc14_32.1: <specific function> = specific_function %impl.elem0.loc14_32.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_16) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn.e3b]
// CHECK:STDOUT: %bound_method.loc14_32.2: <bound method> = bound_method %int_1.loc14, %specific_fn.loc14_32.1 [concrete = constants.%bound_method.dd7]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14: init %i16 = call %bound_method.loc14_32.2(%int_1.loc14) [concrete = constants.%int_1.f90]
// CHECK:STDOUT: %.loc14_32.1: %i16 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc14 [concrete = constants.%int_1.f90]
// CHECK:STDOUT: %.loc14_32.2: %i16 = converted %int_1.loc14, %.loc14_32.1 [concrete = constants.%int_1.f90]
// CHECK:STDOUT: %impl.elem0.loc14_32.2: %.79d = impl_witness_access constants.%Copy.impl_witness.52b, element0 [concrete = constants.%Int.as.Copy.impl.Op.9da]
// CHECK:STDOUT: %bound_method.loc14_32.3: <bound method> = bound_method %.loc14_32.2, %impl.elem0.loc14_32.2 [concrete = constants.%Int.as.Copy.impl.Op.bound]
// CHECK:STDOUT: %specific_fn.loc14_32.2: <specific function> = specific_function %impl.elem0.loc14_32.2, @Int.as.Copy.impl.Op(constants.%int_16) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc14_32.4: <bound method> = bound_method %.loc14_32.2, %specific_fn.loc14_32.2 [concrete = constants.%bound_method.efc]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call.loc14: init %i16 = call %bound_method.loc14_32.4(%.loc14_32.2) [concrete = constants.%int_1.f90]
// CHECK:STDOUT: %.loc14_32.3: ref %i16 = temporary_storage
// CHECK:STDOUT: %.loc14_32.4: ref %i16 = temporary %.loc14_32.3, %Int.as.Copy.impl.Op.call.loc14
// CHECK:STDOUT: %addr.loc14_33: %ptr.251 = addr_of %.loc14_32.4
// CHECK:STDOUT: %ThunkOnArg__carbon_thunk.call: init %i32 = call imports.%ThunkOnArg__carbon_thunk.decl(%addr.loc14_33)
// CHECK:STDOUT: %.loc14_11: type = splice_block %i32.loc14 [concrete = constants.%i32] {
// CHECK:STDOUT: %int_32.loc14: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc14: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc14_33.1: %i32 = value_of_initializer %ThunkOnArg__carbon_thunk.call
// CHECK:STDOUT: %.loc14_33.2: %i32 = converted %ThunkOnArg__carbon_thunk.call, %.loc14_33.1
// CHECK:STDOUT: %r2: %i32 = bind_name r2, %.loc14_33.2
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %r3.patt: %pattern_type.2f8 = binding_pattern r3 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Cpp.ref.loc15: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %ThunkOnReturn.ref: %.3ed = name_ref ThunkOnReturn, imports.%.d87 [concrete = constants.%empty_struct.232]
// CHECK:STDOUT: %int_1.loc15: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
// CHECK:STDOUT: %impl.elem0.loc15: %.7ea = impl_witness_access constants.%ImplicitAs.impl_witness.acc, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.592]
// CHECK:STDOUT: %bound_method.loc15_35.1: <bound method> = bound_method %int_1.loc15, %impl.elem0.loc15 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.a02]
// CHECK:STDOUT: %specific_fn.loc15: <specific function> = specific_function %impl.elem0.loc15, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn.ab7]
// CHECK:STDOUT: %bound_method.loc15_35.2: <bound method> = bound_method %int_1.loc15, %specific_fn.loc15 [concrete = constants.%bound_method.b59]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15: init %i32 = call %bound_method.loc15_35.2(%int_1.loc15) [concrete = constants.%int_1.5d2]
// CHECK:STDOUT: %.loc15_35.1: %i32 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc15 [concrete = constants.%int_1.5d2]
// CHECK:STDOUT: %.loc15_35.2: %i32 = converted %int_1.loc15, %.loc15_35.1 [concrete = constants.%int_1.5d2]
// CHECK:STDOUT: %.loc15_36.1: ref %i16 = temporary_storage
// CHECK:STDOUT: %addr.loc15: %ptr.251 = addr_of %.loc15_36.1
// CHECK:STDOUT: %ThunkOnReturn__carbon_thunk.call: init %empty_tuple.type = call imports.%ThunkOnReturn__carbon_thunk.decl(%.loc15_35.2, %addr.loc15)
// CHECK:STDOUT: %.loc15_36.2: init %i16 = in_place_init %ThunkOnReturn__carbon_thunk.call, %.loc15_36.1
// CHECK:STDOUT: %.loc15_11: type = splice_block %i16.loc15 [concrete = constants.%i16] {
// CHECK:STDOUT: %int_16.loc15: Core.IntLiteral = int_value 16 [concrete = constants.%int_16]
// CHECK:STDOUT: %i16.loc15: type = class_type @Int, @Int(constants.%int_16) [concrete = constants.%i16]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc15_36.3: %i16 = value_of_initializer %.loc15_36.2
// CHECK:STDOUT: %.loc15_36.4: %i16 = converted %.loc15_36.2, %.loc15_36.3
// CHECK:STDOUT: %r3: %i16 = bind_name r3, %.loc15_36.4
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %r4.patt: %pattern_type.2f8 = binding_pattern r4 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Cpp.ref.loc16: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %ThunkOnBoth.ref: %.a8c = name_ref ThunkOnBoth, imports.%.db9 [concrete = constants.%empty_struct.258]
// CHECK:STDOUT: %int_1.loc16: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
// CHECK:STDOUT: %impl.elem0.loc16_33.1: %.8df = impl_witness_access constants.%ImplicitAs.impl_witness.43c, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.1f1]
// CHECK:STDOUT: %bound_method.loc16_33.1: <bound method> = bound_method %int_1.loc16, %impl.elem0.loc16_33.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.34d]
// CHECK:STDOUT: %specific_fn.loc16_33.1: <specific function> = specific_function %impl.elem0.loc16_33.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_16) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn.e3b]
// CHECK:STDOUT: %bound_method.loc16_33.2: <bound method> = bound_method %int_1.loc16, %specific_fn.loc16_33.1 [concrete = constants.%bound_method.dd7]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16: init %i16 = call %bound_method.loc16_33.2(%int_1.loc16) [concrete = constants.%int_1.f90]
// CHECK:STDOUT: %.loc16_33.1: %i16 = value_of_initializer %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc16 [concrete = constants.%int_1.f90]
// CHECK:STDOUT: %.loc16_33.2: %i16 = converted %int_1.loc16, %.loc16_33.1 [concrete = constants.%int_1.f90]
// CHECK:STDOUT: %impl.elem0.loc16_33.2: %.79d = impl_witness_access constants.%Copy.impl_witness.52b, element0 [concrete = constants.%Int.as.Copy.impl.Op.9da]
// CHECK:STDOUT: %bound_method.loc16_33.3: <bound method> = bound_method %.loc16_33.2, %impl.elem0.loc16_33.2 [concrete = constants.%Int.as.Copy.impl.Op.bound]
// CHECK:STDOUT: %specific_fn.loc16_33.2: <specific function> = specific_function %impl.elem0.loc16_33.2, @Int.as.Copy.impl.Op(constants.%int_16) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc16_33.4: <bound method> = bound_method %.loc16_33.2, %specific_fn.loc16_33.2 [concrete = constants.%bound_method.efc]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call.loc16: init %i16 = call %bound_method.loc16_33.4(%.loc16_33.2) [concrete = constants.%int_1.f90]
// CHECK:STDOUT: %.loc16_33.3: ref %i16 = temporary_storage
// CHECK:STDOUT: %.loc16_33.4: ref %i16 = temporary %.loc16_33.3, %Int.as.Copy.impl.Op.call.loc16
// CHECK:STDOUT: %addr.loc16_34.1: %ptr.251 = addr_of %.loc16_33.4
// CHECK:STDOUT: %.loc16_34.1: ref %i16 = temporary_storage
// CHECK:STDOUT: %addr.loc16_34.2: %ptr.251 = addr_of %.loc16_34.1
// CHECK:STDOUT: %ThunkOnBoth__carbon_thunk.call: init %empty_tuple.type = call imports.%ThunkOnBoth__carbon_thunk.decl(%addr.loc16_34.1, %addr.loc16_34.2)
// CHECK:STDOUT: %.loc16_34.2: init %i16 = in_place_init %ThunkOnBoth__carbon_thunk.call, %.loc16_34.1
// CHECK:STDOUT: %.loc16_11: type = splice_block %i16.loc16 [concrete = constants.%i16] {
// CHECK:STDOUT: %int_16.loc16: Core.IntLiteral = int_value 16 [concrete = constants.%int_16]
// CHECK:STDOUT: %i16.loc16: type = class_type @Int, @Int(constants.%int_16) [concrete = constants.%i16]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc16_34.3: %i16 = value_of_initializer %.loc16_34.2
// CHECK:STDOUT: %.loc16_34.4: %i16 = converted %.loc16_34.2, %.loc16_34.3
// CHECK:STDOUT: %r4: %i16 = bind_name r4, %.loc16_34.4
// CHECK:STDOUT: %Int.as.Destroy.impl.Op.bound.loc16: <bound method> = bound_method %.loc16_33.4, constants.%Int.as.Destroy.impl.Op.718
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc16_33.5: <bound method> = bound_method %.loc16_33.4, %Int.as.Destroy.impl.Op.specific_fn.1
// CHECK:STDOUT: %addr.loc16_33: %ptr.251 = addr_of %.loc16_33.4
// CHECK:STDOUT: %Int.as.Destroy.impl.Op.call.loc16: init %empty_tuple.type = call %bound_method.loc16_33.5(%addr.loc16_33)
// CHECK:STDOUT: %Int.as.Destroy.impl.Op.bound.loc14: <bound method> = bound_method %.loc14_32.4, constants.%Int.as.Destroy.impl.Op.718
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc14_32.5: <bound method> = bound_method %.loc14_32.4, %Int.as.Destroy.impl.Op.specific_fn.2
// CHECK:STDOUT: %addr.loc14_32: %ptr.251 = addr_of %.loc14_32.4
// CHECK:STDOUT: %Int.as.Destroy.impl.Op.call.loc14: init %empty_tuple.type = call %bound_method.loc14_32.5(%addr.loc14_32)
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
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