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carbon-lang/toolchain/check/testdata/interop/cpp/function/inline.carbon
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Dana Jansens e682a6660d Avoid adding extraneous local instructions while importing witness table entries (#6180) 
When deducing arguments for generic parameters of an `impl`, the
deduction calls `Convert` on the input arguments. Often, the input
argument is a facet, and needs to be converted to a type via
FacetAccessType in order to produce a different facet. These
instructions end up being added to the semir, but only their constant
values are needed for the resulting specific returned from Deduce.

In the best case, these extra instructions are just noise in the semir,
or they just cause instruction names to get differentiated with larger
suffixes.

In the worst case, these extra instructions contain references to
instructions from a generic context, and leak them out of that generic
context and into another. In particular, when importing a
LookupImplWitness instruction, the re-evaluation of it can do deduce
(when the lookup is against a generic `impl`). The instructions created
in Deduce are not part of the import, and end up referring to imported
instructions from the local context, which leads to confusion in the
toolchain, and can crash.

The `import_self_specific.carbon` test demonstrates this. It causes the
`I.F` function to be imported from the `I` interface when building the
witness table for the `impl`. Doing so imports the specific of `C` which
includes a LookupImplWitness for `Self.Accoc` in `I`. The `Self` is a
BindSymbolicName with generic binding index 0, in `I`. When Convert
creates instructions in the generic `impl forall D`, however, they end
up referencing and including this BindSymbolicName into its eval block.
But the generic binding 0 in the `impl` is a very different thing (a
value of type `E`). This confusion leads to crashes.
2025-10-09 16:07:30 +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]]";
// TODO: Promote this warning to an error by default.
// CHECK:STDERR: todo_fail_import_without_definition.carbon:[[@LINE+4]]:10: in file included here [InCppInclude]
// CHECK:STDERR: ./without_definition.h:2:13: warning: inline function 'foo' is not defined [CppInteropParseWarning]
// CHECK:STDERR: 2 | inline void foo();
// CHECK:STDERR: | ^
import Cpp library "without_definition.h";
fn MyF() {
//@dump-sem-ir-begin
// CHECK:STDERR: todo_fail_import_without_definition.carbon:[[@LINE+4]]:11: note: used here [CppInteropParseNote]
// CHECK:STDERR: 17 | Cpp.foo();
// CHECK:STDERR: | ^
// CHECK:STDERR:
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: %foo.cpp_overload_set.type: type = cpp_overload_set_type @foo.cpp_overload_set [concrete]
// CHECK:STDOUT: %foo.cpp_overload_set.value: %foo.cpp_overload_set.type = cpp_overload_set_value @foo.cpp_overload_set [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 = %foo.cpp_overload_set.value
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %foo.cpp_overload_set.value: %foo.cpp_overload_set.type = cpp_overload_set_value @foo.cpp_overload_set [concrete = constants.%foo.cpp_overload_set.value]
// 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: %foo.cpp_overload_set.type = name_ref foo, imports.%foo.cpp_overload_set.value [concrete = constants.%foo.cpp_overload_set.value]
// 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: %foo.cpp_overload_set.type: type = cpp_overload_set_type @foo.cpp_overload_set [concrete]
// CHECK:STDOUT: %foo.cpp_overload_set.value: %foo.cpp_overload_set.type = cpp_overload_set_value @foo.cpp_overload_set [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 = %foo.cpp_overload_set.value
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %foo.cpp_overload_set.value: %foo.cpp_overload_set.type = cpp_overload_set_value @foo.cpp_overload_set [concrete = constants.%foo.cpp_overload_set.value]
// 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.loc17: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %foo.ref.loc17: %foo.cpp_overload_set.type = name_ref foo, imports.%foo.cpp_overload_set.value [concrete = constants.%foo.cpp_overload_set.value]
// CHECK:STDOUT: %foo.call.loc17: init %empty_tuple.type = call imports.%foo.decl()
// CHECK:STDOUT: %Cpp.ref.loc20: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %foo.ref.loc20: %foo.cpp_overload_set.type = name_ref foo, imports.%foo.cpp_overload_set.value [concrete = constants.%foo.cpp_overload_set.value]
// CHECK:STDOUT: %foo.call.loc20: 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: %WithoutThunk.cpp_overload_set.type: type = cpp_overload_set_type @WithoutThunk.cpp_overload_set [concrete]
// CHECK:STDOUT: %WithoutThunk.cpp_overload_set.value: %WithoutThunk.cpp_overload_set.type = cpp_overload_set_value @WithoutThunk.cpp_overload_set [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.d14: 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.340: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.1c0: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.340 = struct_value () [symbolic]
// CHECK:STDOUT: %ImplicitAs.impl_witness.204: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.9e9, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.584: 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.0f0: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.584 = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.facet.7f1: %ImplicitAs.type.d14 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.204) [concrete]
// CHECK:STDOUT: %.1df: type = fn_type_with_self_type %ImplicitAs.Convert.type.1b6, %ImplicitAs.facet.7f1 [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.abf: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.0f0 [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn.a29: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.0f0, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
// CHECK:STDOUT: %bound_method.c11: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn.a29 [concrete]
// CHECK:STDOUT: %int_1.5d2: %i32 = int_value 1 [concrete]
// CHECK:STDOUT: %ThunkOnArg.cpp_overload_set.type: type = cpp_overload_set_type @ThunkOnArg.cpp_overload_set [concrete]
// CHECK:STDOUT: %ThunkOnArg.cpp_overload_set.value: %ThunkOnArg.cpp_overload_set.type = cpp_overload_set_value @ThunkOnArg.cpp_overload_set [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.527: 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.ed0: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.9e9, @Core.IntLiteral.as.ImplicitAs.impl(%int_16) [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.643: 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.4eb: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.643 = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.facet.381: %ImplicitAs.type.527 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.ed0) [concrete]
// CHECK:STDOUT: %.ee2: type = fn_type_with_self_type %ImplicitAs.Convert.type.fa6, %ImplicitAs.facet.381 [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.c97: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.4eb [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn.810: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.4eb, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_16) [concrete]
// CHECK:STDOUT: %bound_method.a9b: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn.810 [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.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.2f8: <witness> = impl_witness imports.%Copy.impl_witness_table.1ed, @Int.as.Copy.impl(%int_16) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.c73: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%int_16) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.3dc: %Int.as.Copy.impl.Op.type.c73 = struct_value () [concrete]
// CHECK:STDOUT: %Copy.facet: %Copy.type = facet_value %i16, (%Copy.impl_witness.2f8) [concrete]
// CHECK:STDOUT: %.798: type = fn_type_with_self_type %Copy.Op.type, %Copy.facet [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.bound: <bound method> = bound_method %int_1.f90, %Int.as.Copy.impl.Op.3dc [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Copy.impl.Op.3dc, @Int.as.Copy.impl.Op(%int_16) [concrete]
// CHECK:STDOUT: %bound_method.7c2: <bound method> = bound_method %int_1.f90, %Int.as.Copy.impl.Op.specific_fn [concrete]
// CHECK:STDOUT: %ThunkOnReturn.cpp_overload_set.type: type = cpp_overload_set_type @ThunkOnReturn.cpp_overload_set [concrete]
// CHECK:STDOUT: %ThunkOnReturn.cpp_overload_set.value: %ThunkOnReturn.cpp_overload_set.type = cpp_overload_set_value @ThunkOnReturn.cpp_overload_set [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: %ThunkOnBoth.cpp_overload_set.type: type = cpp_overload_set_type @ThunkOnBoth.cpp_overload_set [concrete]
// CHECK:STDOUT: %ThunkOnBoth.cpp_overload_set.value: %ThunkOnBoth.cpp_overload_set.type = cpp_overload_set_value @ThunkOnBoth.cpp_overload_set [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: %type_where: type = facet_type <type where .Self impls <CanDestroy>> [concrete]
// CHECK:STDOUT: %facet_value: %type_where = facet_value %i16, () [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.type.716: type = fn_type @DestroyT.binding.as_type.as.Destroy.impl.Op, @DestroyT.binding.as_type.as.Destroy.impl(%facet_value) [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.89b: %DestroyT.binding.as_type.as.Destroy.impl.Op.type.716 = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .WithoutThunk = %WithoutThunk.cpp_overload_set.value
// CHECK:STDOUT: .ThunkOnArg = %ThunkOnArg.cpp_overload_set.value
// CHECK:STDOUT: .ThunkOnReturn = %ThunkOnReturn.cpp_overload_set.value
// CHECK:STDOUT: .ThunkOnBoth = %ThunkOnBoth.cpp_overload_set.value
// CHECK:STDOUT: import Cpp//...
// CHECK:STDOUT: }
// CHECK:STDOUT: %WithoutThunk.cpp_overload_set.value: %WithoutThunk.cpp_overload_set.type = cpp_overload_set_value @WithoutThunk.cpp_overload_set [concrete = constants.%WithoutThunk.cpp_overload_set.value]
// 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.ee7: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.340) = import_ref Core//prelude/parts/int, loc{{\d+_\d+}}, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.1c0)]
// CHECK:STDOUT: %ImplicitAs.impl_witness_table.9e9 = impl_witness_table (%Core.import_ref.ee7), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
// CHECK:STDOUT: %ThunkOnArg.cpp_overload_set.value: %ThunkOnArg.cpp_overload_set.type = cpp_overload_set_value @ThunkOnArg.cpp_overload_set [concrete = constants.%ThunkOnArg.cpp_overload_set.value]
// 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.d0f6: @Int.as.Copy.impl.%Int.as.Copy.impl.Op.type (%Int.as.Copy.impl.Op.type.afd) = import_ref Core//prelude/parts/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: %ThunkOnReturn.cpp_overload_set.value: %ThunkOnReturn.cpp_overload_set.type = cpp_overload_set_value @ThunkOnReturn.cpp_overload_set [concrete = constants.%ThunkOnReturn.cpp_overload_set.value]
// 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: %ThunkOnBoth.cpp_overload_set.value: %ThunkOnBoth.cpp_overload_set.type = cpp_overload_set_value @ThunkOnBoth.cpp_overload_set [concrete = constants.%ThunkOnBoth.cpp_overload_set.value]
// 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: %WithoutThunk.cpp_overload_set.type = name_ref WithoutThunk, imports.%WithoutThunk.cpp_overload_set.value [concrete = constants.%WithoutThunk.cpp_overload_set.value]
// CHECK:STDOUT: %int_1.loc13: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
// CHECK:STDOUT: %impl.elem0.loc13: %.1df = impl_witness_access constants.%ImplicitAs.impl_witness.204, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.0f0]
// 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.abf]
// 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.a29]
// CHECK:STDOUT: %bound_method.loc13_34.2: <bound method> = bound_method %int_1.loc13, %specific_fn.loc13 [concrete = constants.%bound_method.c11]
// 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: %ThunkOnArg.cpp_overload_set.type = name_ref ThunkOnArg, imports.%ThunkOnArg.cpp_overload_set.value [concrete = constants.%ThunkOnArg.cpp_overload_set.value]
// CHECK:STDOUT: %int_1.loc14: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
// CHECK:STDOUT: %impl.elem0.loc14_32.1: %.ee2 = impl_witness_access constants.%ImplicitAs.impl_witness.ed0, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.4eb]
// 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.c97]
// 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.810]
// CHECK:STDOUT: %bound_method.loc14_32.2: <bound method> = bound_method %int_1.loc14, %specific_fn.loc14_32.1 [concrete = constants.%bound_method.a9b]
// 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: %.loc14_32.3: ref %i16 = temporary_storage
// CHECK:STDOUT: %impl.elem0.loc14_32.2: %.798 = impl_witness_access constants.%Copy.impl_witness.2f8, element0 [concrete = constants.%Int.as.Copy.impl.Op.3dc]
// 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.7c2]
// 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_32.4: 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: %ThunkOnReturn.cpp_overload_set.type = name_ref ThunkOnReturn, imports.%ThunkOnReturn.cpp_overload_set.value [concrete = constants.%ThunkOnReturn.cpp_overload_set.value]
// CHECK:STDOUT: %int_1.loc15: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
// CHECK:STDOUT: %impl.elem0.loc15: %.1df = impl_witness_access constants.%ImplicitAs.impl_witness.204, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.0f0]
// 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.abf]
// 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.a29]
// CHECK:STDOUT: %bound_method.loc15_35.2: <bound method> = bound_method %int_1.loc15, %specific_fn.loc15 [concrete = constants.%bound_method.c11]
// 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: %ThunkOnBoth.cpp_overload_set.type = name_ref ThunkOnBoth, imports.%ThunkOnBoth.cpp_overload_set.value [concrete = constants.%ThunkOnBoth.cpp_overload_set.value]
// CHECK:STDOUT: %int_1.loc16: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
// CHECK:STDOUT: %impl.elem0.loc16_33.1: %.ee2 = impl_witness_access constants.%ImplicitAs.impl_witness.ed0, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.4eb]
// 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.c97]
// 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.810]
// CHECK:STDOUT: %bound_method.loc16_33.2: <bound method> = bound_method %int_1.loc16, %specific_fn.loc16_33.1 [concrete = constants.%bound_method.a9b]
// 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: %.loc16_33.3: ref %i16 = temporary_storage
// CHECK:STDOUT: %impl.elem0.loc16_33.2: %.798 = impl_witness_access constants.%Copy.impl_witness.2f8, element0 [concrete = constants.%Int.as.Copy.impl.Op.3dc]
// 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.7c2]
// 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_33.4: 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: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound.loc16: <bound method> = bound_method %.loc16_33.4, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.89b
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc16_33.5: <bound method> = bound_method %.loc16_33.4, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.1
// CHECK:STDOUT: %addr.loc16_33: %ptr.251 = addr_of %.loc16_33.4
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.call.loc16: init %empty_tuple.type = call %bound_method.loc16_33.5(%addr.loc16_33)
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound.loc14: <bound method> = bound_method %.loc14_32.4, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.89b
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %bound_method.loc14_32.5: <bound method> = bound_method %.loc14_32.4, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.2
// CHECK:STDOUT: %addr.loc14_32: %ptr.251 = addr_of %.loc14_32.4
// CHECK:STDOUT: %DestroyT.binding.as_type.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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