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carbon-lang/toolchain/check/testdata/interop/cpp/class/field.carbon
T
Jon Ross-Perkins 47081be67a Reduce test sensitivity to small import loc changes (#6145) 
Locations are similarly fragile, because adding a comment changes them.
This has made me pause when making prelude changes in #6144, so dropping
them for those cases.

Instruction ids aren't actually that interesting outside debugging, and
can be churny when doing other structural changes. I've seen this in
particular when doing singleton changes, which bump every instruction
id.

Note there are still other ways fragility from locations can crop up.
This shouldn't be considered a complete fix, but hopefully a small
improvement.
2025-09-30 17:20:14 +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/full.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/class/field.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interop/cpp/class/field.carbon
// --- struct.h
struct Struct {
int a;
int b;
int* _Nonnull p;
};
// --- use_struct_fields.carbon
library "[[@TEST_NAME]]";
import Cpp library "struct.h";
fn F(s: Cpp.Struct) -> (i32, i32, i32) {
//@dump-sem-ir-begin
return (s.a, s.b, *s.p);
//@dump-sem-ir-end
}
// --- union.h
union Union {
int a;
int b;
int* _Nonnull p;
};
// --- use_union_fields.carbon
library "[[@TEST_NAME]]";
import Cpp library "union.h";
fn F(u: Cpp.Union) -> i32 {
//@dump-sem-ir-begin
return u.a;
//@dump-sem-ir-end
}
fn G(u: Cpp.Union) -> i32 {
//@dump-sem-ir-begin
return u.b;
//@dump-sem-ir-end
}
fn H(u: Cpp.Union) -> i32 {
//@dump-sem-ir-begin
return *u.p;
//@dump-sem-ir-end
}
// --- anon_struct_union.h
struct A {
union {
struct {
short a_0;
short b_2;
int c_4;
};
struct {
char d_0;
char e_1;
int f_4;
short g_8;
};
};
int h_12;
};
// --- use_anon_struct_union.carbon
library "[[@TEST_NAME]]";
import Cpp library "anon_struct_union.h";
fn GetF(a: Cpp.A) -> i32 { return a.f_4; }
// --- with_bitfields.h
struct Struct {
int a;
int b : 2;
};
union Union {
int c;
int d : 3;
};
// --- use_non_bitfields_in_type_with_bitfields.carbon
library "[[@TEST_NAME]]";
import Cpp library "with_bitfields.h";
fn F(s: Cpp.Struct) -> i32 {
//@dump-sem-ir-begin
return s.a;
//@dump-sem-ir-end
}
fn G(s: Cpp.Union) -> i32 {
//@dump-sem-ir-begin
return s.c;
//@dump-sem-ir-end
}
// --- fail_todo_use_bitfields.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: fail_todo_use_bitfields.carbon:[[@LINE+4]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./with_bitfields.h:4:7: error: semantics TODO: `Unsupported: field declaration has unhandled type or kind` [SemanticsTodo]
// CHECK:STDERR: int b : 2;
// CHECK:STDERR: ^
import Cpp library "with_bitfields.h";
fn F(s: Cpp.Struct) -> i32 {
//@dump-sem-ir-begin
// CHECK:STDERR: fail_todo_use_bitfields.carbon:[[@LINE+8]]:10: note: in `Cpp` name lookup for `b` [InCppNameLookup]
// CHECK:STDERR: return s.b;
// CHECK:STDERR: ^~~
// CHECK:STDERR:
// CHECK:STDERR: fail_todo_use_bitfields.carbon:[[@LINE-8]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./with_bitfields.h:9:7: error: semantics TODO: `Unsupported: field declaration has unhandled type or kind` [SemanticsTodo]
// CHECK:STDERR: int d : 3;
// CHECK:STDERR: ^
return s.b;
//@dump-sem-ir-end
}
fn G(s: Cpp.Union) -> i32 {
//@dump-sem-ir-begin
// CHECK:STDERR: fail_todo_use_bitfields.carbon:[[@LINE+4]]:10: note: in `Cpp` name lookup for `d` [InCppNameLookup]
// CHECK:STDERR: return s.d;
// CHECK:STDERR: ^~~
// CHECK:STDERR:
return s.d;
//@dump-sem-ir-end
}
// --- unsupported_members.h
struct UnsupportedMembers {
// Volatile is not supported.
volatile int is_volatile;
// Nullable pointers are not supported.
int *is_nullable;
// References are not supported.
int &is_reference;
// But this should be fine.
int integer;
};
void Consume(UnsupportedMembers);
// --- supported_members_in_type_with_unsupported_members.carbon
library "[[@TEST_NAME]]";
import Cpp library "unsupported_members.h";
fn Test(m: Cpp.UnsupportedMembers*) {
// OK: Can still access supported members.
m->integer = 42;
// OK: Can still pass the class to a C++ function.
Cpp.Consume(*m);
}
// --- fail_use_unsupported_members.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: fail_use_unsupported_members.carbon:[[@LINE+4]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./unsupported_members.h:4:16: error: semantics TODO: `Unsupported: field declaration has unhandled type or kind` [SemanticsTodo]
// CHECK:STDERR: volatile int is_volatile;
// CHECK:STDERR: ^
import Cpp library "unsupported_members.h";
fn Test(m: Cpp.UnsupportedMembers*) {
// CHECK:STDERR: fail_use_unsupported_members.carbon:[[@LINE+8]]:16: note: in `Cpp` name lookup for `is_volatile` [InCppNameLookup]
// CHECK:STDERR: let a: i32 = m->is_volatile;
// CHECK:STDERR: ^~~~~~~~~~~~~~
// CHECK:STDERR:
// CHECK:STDERR: fail_use_unsupported_members.carbon:[[@LINE-7]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./unsupported_members.h:6:8: error: semantics TODO: `Unsupported: field declaration has unhandled type or kind` [SemanticsTodo]
// CHECK:STDERR: int *is_nullable;
// CHECK:STDERR: ^
let a: i32 = m->is_volatile;
// CHECK:STDERR: fail_use_unsupported_members.carbon:[[@LINE+8]]:17: note: in `Cpp` name lookup for `is_nullable` [InCppNameLookup]
// CHECK:STDERR: let b: i32 = *m->is_nullable;
// CHECK:STDERR: ^~~~~~~~~~~~~~
// CHECK:STDERR:
// CHECK:STDERR: fail_use_unsupported_members.carbon:[[@LINE-17]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./unsupported_members.h:8:8: error: semantics TODO: `Unsupported: field declaration has unhandled type or kind` [SemanticsTodo]
// CHECK:STDERR: int &is_reference;
// CHECK:STDERR: ^
let b: i32 = *m->is_nullable;
// CHECK:STDERR: fail_use_unsupported_members.carbon:[[@LINE+4]]:16: note: in `Cpp` name lookup for `is_reference` [InCppNameLookup]
// CHECK:STDERR: let c: i32 = m->is_reference;
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR:
let c: i32 = m->is_reference;
}
// CHECK:STDOUT: --- use_struct_fields.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Struct: type = class_type @Struct [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: %tuple.type.189: type = tuple_type (%i32, %i32, %i32) [concrete]
// CHECK:STDOUT: %Struct.elem.86b: type = unbound_element_type %Struct, %i32 [concrete]
// CHECK:STDOUT: %ptr.235: type = ptr_type %i32 [concrete]
// CHECK:STDOUT: %Struct.elem.765: type = unbound_element_type %Struct, %ptr.235 [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.afd: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%N) [symbolic]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.6cd: %Int.as.Copy.impl.Op.type.afd = struct_value () [symbolic]
// CHECK:STDOUT: %Copy.impl_witness.a32: <witness> = impl_witness imports.%Copy.impl_witness_table.1ed, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.276: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.f59: %Int.as.Copy.impl.Op.type.276 = struct_value () [concrete]
// CHECK:STDOUT: %Copy.facet: %Copy.type = facet_value %i32, (%Copy.impl_witness.a32) [concrete]
// CHECK:STDOUT: %.7fa: type = fn_type_with_self_type %Copy.Op.type, %Copy.facet [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Copy.impl.Op.f59, @Int.as.Copy.impl.Op(%int_32) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core.import_ref.d0f6: @Int.as.Copy.impl.%Int.as.Copy.impl.Op.type (%Int.as.Copy.impl.Op.type.afd) = import_ref Core//prelude/types/int, loc{{\d+_\d+}}, loaded [symbolic = @Int.as.Copy.impl.%Int.as.Copy.impl.Op (constants.%Int.as.Copy.impl.Op.6cd)]
// CHECK:STDOUT: %Copy.impl_witness_table.1ed = impl_witness_table (%Core.import_ref.d0f6), @Int.as.Copy.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%s.param: %Struct) -> %return.param: %tuple.type.189 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %s.ref.loc8_11: %Struct = name_ref s, %s
// CHECK:STDOUT: %a.ref: %Struct.elem.86b = name_ref a, @Struct.%.1 [concrete = @Struct.%.1]
// CHECK:STDOUT: %.loc8_12.1: ref %i32 = class_element_access %s.ref.loc8_11, element0
// CHECK:STDOUT: %.loc8_12.2: %i32 = bind_value %.loc8_12.1
// CHECK:STDOUT: %s.ref.loc8_16: %Struct = name_ref s, %s
// CHECK:STDOUT: %b.ref: %Struct.elem.86b = name_ref b, @Struct.%.2 [concrete = @Struct.%.2]
// CHECK:STDOUT: %.loc8_17.1: ref %i32 = class_element_access %s.ref.loc8_16, element1
// CHECK:STDOUT: %.loc8_17.2: %i32 = bind_value %.loc8_17.1
// CHECK:STDOUT: %s.ref.loc8_22: %Struct = name_ref s, %s
// CHECK:STDOUT: %p.ref: %Struct.elem.765 = name_ref p, @Struct.%.3 [concrete = @Struct.%.3]
// CHECK:STDOUT: %.loc8_23.1: ref %ptr.235 = class_element_access %s.ref.loc8_22, element2
// CHECK:STDOUT: %.loc8_23.2: %ptr.235 = bind_value %.loc8_23.1
// CHECK:STDOUT: %.loc8_21.1: ref %i32 = deref %.loc8_23.2
// CHECK:STDOUT: %.loc8_25.1: %tuple.type.189 = tuple_literal (%.loc8_12.2, %.loc8_17.2, %.loc8_21.1)
// CHECK:STDOUT: %impl.elem0.loc8_12: %.7fa = impl_witness_access constants.%Copy.impl_witness.a32, element0 [concrete = constants.%Int.as.Copy.impl.Op.f59]
// CHECK:STDOUT: %bound_method.loc8_12.1: <bound method> = bound_method %.loc8_12.2, %impl.elem0.loc8_12
// CHECK:STDOUT: %specific_fn.loc8_12: <specific function> = specific_function %impl.elem0.loc8_12, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc8_12.2: <bound method> = bound_method %.loc8_12.2, %specific_fn.loc8_12
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call.loc8_12: init %i32 = call %bound_method.loc8_12.2(%.loc8_12.2)
// CHECK:STDOUT: %tuple.elem0: ref %i32 = tuple_access %return, element0
// CHECK:STDOUT: %.loc8_25.2: init %i32 = initialize_from %Int.as.Copy.impl.Op.call.loc8_12 to %tuple.elem0
// CHECK:STDOUT: %impl.elem0.loc8_17: %.7fa = impl_witness_access constants.%Copy.impl_witness.a32, element0 [concrete = constants.%Int.as.Copy.impl.Op.f59]
// CHECK:STDOUT: %bound_method.loc8_17.1: <bound method> = bound_method %.loc8_17.2, %impl.elem0.loc8_17
// CHECK:STDOUT: %specific_fn.loc8_17: <specific function> = specific_function %impl.elem0.loc8_17, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc8_17.2: <bound method> = bound_method %.loc8_17.2, %specific_fn.loc8_17
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call.loc8_17: init %i32 = call %bound_method.loc8_17.2(%.loc8_17.2)
// CHECK:STDOUT: %tuple.elem1: ref %i32 = tuple_access %return, element1
// CHECK:STDOUT: %.loc8_25.3: init %i32 = initialize_from %Int.as.Copy.impl.Op.call.loc8_17 to %tuple.elem1
// CHECK:STDOUT: %.loc8_21.2: %i32 = bind_value %.loc8_21.1
// CHECK:STDOUT: %impl.elem0.loc8_21: %.7fa = impl_witness_access constants.%Copy.impl_witness.a32, element0 [concrete = constants.%Int.as.Copy.impl.Op.f59]
// CHECK:STDOUT: %bound_method.loc8_21.1: <bound method> = bound_method %.loc8_21.2, %impl.elem0.loc8_21
// CHECK:STDOUT: %specific_fn.loc8_21: <specific function> = specific_function %impl.elem0.loc8_21, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc8_21.2: <bound method> = bound_method %.loc8_21.2, %specific_fn.loc8_21
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call.loc8_21: init %i32 = call %bound_method.loc8_21.2(%.loc8_21.2)
// CHECK:STDOUT: %tuple.elem2: ref %i32 = tuple_access %return, element2
// CHECK:STDOUT: %.loc8_25.4: init %i32 = initialize_from %Int.as.Copy.impl.Op.call.loc8_21 to %tuple.elem2
// CHECK:STDOUT: %.loc8_25.5: init %tuple.type.189 = tuple_init (%.loc8_25.2, %.loc8_25.3, %.loc8_25.4) to %return
// CHECK:STDOUT: %.loc8_26: init %tuple.type.189 = converted %.loc8_25.1, %.loc8_25.5
// CHECK:STDOUT: return %.loc8_26 to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- use_union_fields.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Union: type = class_type @Union [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: %Union.elem.041: type = unbound_element_type %Union, %i32 [concrete]
// CHECK:STDOUT: %ptr.235: type = ptr_type %i32 [concrete]
// CHECK:STDOUT: %Union.elem.92a: type = unbound_element_type %Union, %ptr.235 [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.afd: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%N) [symbolic]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.6cd: %Int.as.Copy.impl.Op.type.afd = struct_value () [symbolic]
// CHECK:STDOUT: %Copy.impl_witness.a32: <witness> = impl_witness imports.%Copy.impl_witness_table.1ed, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.276: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.f59: %Int.as.Copy.impl.Op.type.276 = struct_value () [concrete]
// CHECK:STDOUT: %Copy.facet: %Copy.type = facet_value %i32, (%Copy.impl_witness.a32) [concrete]
// CHECK:STDOUT: %.7fa: type = fn_type_with_self_type %Copy.Op.type, %Copy.facet [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Copy.impl.Op.f59, @Int.as.Copy.impl.Op(%int_32) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core.import_ref.d0f6: @Int.as.Copy.impl.%Int.as.Copy.impl.Op.type (%Int.as.Copy.impl.Op.type.afd) = import_ref Core//prelude/types/int, loc{{\d+_\d+}}, loaded [symbolic = @Int.as.Copy.impl.%Int.as.Copy.impl.Op (constants.%Int.as.Copy.impl.Op.6cd)]
// CHECK:STDOUT: %Copy.impl_witness_table.1ed = impl_witness_table (%Core.import_ref.d0f6), @Int.as.Copy.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%u.param: %Union) -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %u.ref: %Union = name_ref u, %u
// CHECK:STDOUT: %a.ref: %Union.elem.041 = name_ref a, @Union.%.1 [concrete = @Union.%.1]
// CHECK:STDOUT: %.loc8_11.1: ref %i32 = class_element_access %u.ref, element0
// CHECK:STDOUT: %.loc8_11.2: %i32 = bind_value %.loc8_11.1
// CHECK:STDOUT: %impl.elem0: %.7fa = impl_witness_access constants.%Copy.impl_witness.a32, element0 [concrete = constants.%Int.as.Copy.impl.Op.f59]
// CHECK:STDOUT: %bound_method.loc8_11.1: <bound method> = bound_method %.loc8_11.2, %impl.elem0
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc8_11.2: <bound method> = bound_method %.loc8_11.2, %specific_fn
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call: init %i32 = call %bound_method.loc8_11.2(%.loc8_11.2)
// CHECK:STDOUT: return %Int.as.Copy.impl.Op.call to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G(%u.param: %Union) -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %u.ref: %Union = name_ref u, %u
// CHECK:STDOUT: %b.ref: %Union.elem.041 = name_ref b, @Union.%.2 [concrete = @Union.%.2]
// CHECK:STDOUT: %.loc14_11.1: ref %i32 = class_element_access %u.ref, element1
// CHECK:STDOUT: %.loc14_11.2: %i32 = bind_value %.loc14_11.1
// CHECK:STDOUT: %impl.elem0: %.7fa = impl_witness_access constants.%Copy.impl_witness.a32, element0 [concrete = constants.%Int.as.Copy.impl.Op.f59]
// CHECK:STDOUT: %bound_method.loc14_11.1: <bound method> = bound_method %.loc14_11.2, %impl.elem0
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc14_11.2: <bound method> = bound_method %.loc14_11.2, %specific_fn
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call: init %i32 = call %bound_method.loc14_11.2(%.loc14_11.2)
// CHECK:STDOUT: return %Int.as.Copy.impl.Op.call to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @H(%u.param: %Union) -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %u.ref: %Union = name_ref u, %u
// CHECK:STDOUT: %p.ref: %Union.elem.92a = name_ref p, @Union.%.3 [concrete = @Union.%.3]
// CHECK:STDOUT: %.loc20_12.1: ref %ptr.235 = class_element_access %u.ref, element2
// CHECK:STDOUT: %.loc20_12.2: %ptr.235 = bind_value %.loc20_12.1
// CHECK:STDOUT: %.loc20_10.1: ref %i32 = deref %.loc20_12.2
// CHECK:STDOUT: %.loc20_10.2: %i32 = bind_value %.loc20_10.1
// CHECK:STDOUT: %impl.elem0: %.7fa = impl_witness_access constants.%Copy.impl_witness.a32, element0 [concrete = constants.%Int.as.Copy.impl.Op.f59]
// CHECK:STDOUT: %bound_method.loc20_10.1: <bound method> = bound_method %.loc20_10.2, %impl.elem0
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc20_10.2: <bound method> = bound_method %.loc20_10.2, %specific_fn
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call: init %i32 = call %bound_method.loc20_10.2(%.loc20_10.2)
// CHECK:STDOUT: return %Int.as.Copy.impl.Op.call to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- use_non_bitfields_in_type_with_bitfields.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Struct: type = class_type @Struct [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: %Struct.elem: type = unbound_element_type %Struct, %i32 [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.afd: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%N) [symbolic]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.6cd: %Int.as.Copy.impl.Op.type.afd = struct_value () [symbolic]
// CHECK:STDOUT: %Copy.impl_witness.a32: <witness> = impl_witness imports.%Copy.impl_witness_table.1ed, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.276: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.f59: %Int.as.Copy.impl.Op.type.276 = struct_value () [concrete]
// CHECK:STDOUT: %Copy.facet: %Copy.type = facet_value %i32, (%Copy.impl_witness.a32) [concrete]
// CHECK:STDOUT: %.7fa: type = fn_type_with_self_type %Copy.Op.type, %Copy.facet [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Copy.impl.Op.f59, @Int.as.Copy.impl.Op(%int_32) [concrete]
// CHECK:STDOUT: %Union: type = class_type @Union [concrete]
// CHECK:STDOUT: %Union.elem: type = unbound_element_type %Union, %i32 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core.import_ref.d0f6: @Int.as.Copy.impl.%Int.as.Copy.impl.Op.type (%Int.as.Copy.impl.Op.type.afd) = import_ref Core//prelude/types/int, loc{{\d+_\d+}}, loaded [symbolic = @Int.as.Copy.impl.%Int.as.Copy.impl.Op (constants.%Int.as.Copy.impl.Op.6cd)]
// CHECK:STDOUT: %Copy.impl_witness_table.1ed = impl_witness_table (%Core.import_ref.d0f6), @Int.as.Copy.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%s.param: %Struct) -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %s.ref: %Struct = name_ref s, %s
// CHECK:STDOUT: %a.ref: %Struct.elem = name_ref a, @Struct.%.1 [concrete = @Struct.%.1]
// CHECK:STDOUT: %.loc8_11.1: ref %i32 = class_element_access %s.ref, element0
// CHECK:STDOUT: %.loc8_11.2: %i32 = bind_value %.loc8_11.1
// CHECK:STDOUT: %impl.elem0: %.7fa = impl_witness_access constants.%Copy.impl_witness.a32, element0 [concrete = constants.%Int.as.Copy.impl.Op.f59]
// CHECK:STDOUT: %bound_method.loc8_11.1: <bound method> = bound_method %.loc8_11.2, %impl.elem0
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc8_11.2: <bound method> = bound_method %.loc8_11.2, %specific_fn
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call: init %i32 = call %bound_method.loc8_11.2(%.loc8_11.2)
// CHECK:STDOUT: return %Int.as.Copy.impl.Op.call to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G(%s.param: %Union) -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %s.ref: %Union = name_ref s, %s
// CHECK:STDOUT: %c.ref: %Union.elem = name_ref c, @Union.%.1 [concrete = @Union.%.1]
// CHECK:STDOUT: %.loc14_11.1: ref %i32 = class_element_access %s.ref, element0
// CHECK:STDOUT: %.loc14_11.2: %i32 = bind_value %.loc14_11.1
// CHECK:STDOUT: %impl.elem0: %.7fa = impl_witness_access constants.%Copy.impl_witness.a32, element0 [concrete = constants.%Int.as.Copy.impl.Op.f59]
// CHECK:STDOUT: %bound_method.loc14_11.1: <bound method> = bound_method %.loc14_11.2, %impl.elem0
// CHECK:STDOUT: %specific_fn: <specific function> = specific_function %impl.elem0, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc14_11.2: <bound method> = bound_method %.loc14_11.2, %specific_fn
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call: init %i32 = call %bound_method.loc14_11.2(%.loc14_11.2)
// CHECK:STDOUT: return %Int.as.Copy.impl.Op.call to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_todo_use_bitfields.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Struct: type = class_type @Struct [concrete]
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %Union: type = class_type @Union [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%s.param: %Struct) -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %s.ref: %Struct = name_ref s, %s
// CHECK:STDOUT: %b.ref: <error> = name_ref b, <error> [concrete = <error>]
// CHECK:STDOUT: return <error> to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G(%s.param: %Union) -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %s.ref: %Union = name_ref s, %s
// CHECK:STDOUT: %d.ref: <error> = name_ref d, <error> [concrete = <error>]
// CHECK:STDOUT: return <error> to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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