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carbon-lang/toolchain/check/testdata/class/nested.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/convert.carbon
// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/class/nested.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/nested.carbon
class Outer {
fn F() {
// Outer and Inner are both complete here.
var o: Outer;
var i: Inner;
}
class Inner {
var pi: Self*;
var po: Outer*;
var qi: Inner*;
fn G() {
// Outer and Inner are both complete here.
var o: Outer;
var i: Inner;
}
}
fn H() {
// Outer and Inner are both complete here.
var o: Outer;
var i: Inner;
}
var po: Self*;
var qo: Outer*;
var pi: Inner*;
}
fn F(a: Outer*) {
let b: Outer.Inner* = (*a).pi;
a->po = a;
a->qo = a;
a->pi = a->pi;
b->po = a;
b->pi = a->pi;
b->qi = a->pi;
}
// CHECK:STDOUT: --- nested.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Outer: type = class_type @Outer [concrete]
// CHECK:STDOUT: %Outer.F.type: type = fn_type @Outer.F [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %Outer.F: %Outer.F.type = struct_value () [concrete]
// CHECK:STDOUT: %Inner: type = class_type @Inner [concrete]
// CHECK:STDOUT: %ptr.36a: type = ptr_type %Inner [concrete]
// CHECK:STDOUT: %Inner.elem.640: type = unbound_element_type %Inner, %ptr.36a [concrete]
// CHECK:STDOUT: %ptr.5df: type = ptr_type %Outer [concrete]
// CHECK:STDOUT: %Inner.elem.c30: type = unbound_element_type %Inner, %ptr.5df [concrete]
// CHECK:STDOUT: %Inner.G.type: type = fn_type @Inner.G [concrete]
// CHECK:STDOUT: %Inner.G: %Inner.G.type = struct_value () [concrete]
// CHECK:STDOUT: %struct_type.pi.po.qi: type = struct_type {.pi: %ptr.36a, .po: %ptr.5df, .qi: %ptr.36a} [concrete]
// CHECK:STDOUT: %complete_type.7ae: <witness> = complete_type_witness %struct_type.pi.po.qi [concrete]
// CHECK:STDOUT: %Outer.H.type: type = fn_type @Outer.H [concrete]
// CHECK:STDOUT: %Outer.H: %Outer.H.type = struct_value () [concrete]
// CHECK:STDOUT: %Outer.elem.a16: type = unbound_element_type %Outer, %ptr.5df [concrete]
// CHECK:STDOUT: %Outer.elem.fe9: type = unbound_element_type %Outer, %ptr.36a [concrete]
// CHECK:STDOUT: %struct_type.po.qo.pi: type = struct_type {.po: %ptr.5df, .qo: %ptr.5df, .pi: %ptr.36a} [concrete]
// CHECK:STDOUT: %complete_type.e99: <witness> = complete_type_witness %struct_type.po.qo.pi [concrete]
// CHECK:STDOUT: %pattern_type.e74: type = pattern_type %Outer [concrete]
// CHECK:STDOUT: %pattern_type.906: type = pattern_type %Inner [concrete]
// CHECK:STDOUT: %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT: %type_where: type = facet_type <type where .Self impls <CanDestroy>> [concrete]
// CHECK:STDOUT: %facet_value.c29: %type_where = facet_value %Inner, () [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.type.58c: type = fn_type @DestroyT.binding.as_type.as.Destroy.impl.Op, @DestroyT.binding.as_type.as.Destroy.impl(%facet_value.c29) [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.b22: %DestroyT.binding.as_type.as.Destroy.impl.Op.type.58c = struct_value () [concrete]
// CHECK:STDOUT: %pattern_type.27f: type = pattern_type %ptr.36a [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.30e: <specific function> = specific_function %DestroyT.binding.as_type.as.Destroy.impl.Op.b22, @DestroyT.binding.as_type.as.Destroy.impl.Op(%facet_value.c29) [concrete]
// CHECK:STDOUT: %facet_value.4b4: %type_where = facet_value %Outer, () [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.type.e6a: type = fn_type @DestroyT.binding.as_type.as.Destroy.impl.Op, @DestroyT.binding.as_type.as.Destroy.impl(%facet_value.4b4) [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.5f7: %DestroyT.binding.as_type.as.Destroy.impl.Op.type.e6a = struct_value () [concrete]
// CHECK:STDOUT: %pattern_type.95c: type = pattern_type %ptr.5df [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.324: <specific function> = specific_function %DestroyT.binding.as_type.as.Destroy.impl.Op.5f7, @DestroyT.binding.as_type.as.Destroy.impl.Op(%facet_value.4b4) [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: %Copy.type: type = facet_type <@Copy> [concrete]
// CHECK:STDOUT: %Copy.Op.type: type = fn_type @Copy.Op [concrete]
// CHECK:STDOUT: %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.type.31f: type = fn_type @ptr.as.Copy.impl.Op, @ptr.as.Copy.impl(%T.8b3) [symbolic]
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.8a8: %ptr.as.Copy.impl.Op.type.31f = struct_value () [symbolic]
// CHECK:STDOUT: %Copy.impl_witness.b32: <witness> = impl_witness imports.%Copy.impl_witness_table.53c, @ptr.as.Copy.impl(%Outer) [concrete]
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.type.6f9: type = fn_type @ptr.as.Copy.impl.Op, @ptr.as.Copy.impl(%Outer) [concrete]
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.a21: %ptr.as.Copy.impl.Op.type.6f9 = struct_value () [concrete]
// CHECK:STDOUT: %Copy.facet.b8f: %Copy.type = facet_value %ptr.5df, (%Copy.impl_witness.b32) [concrete]
// CHECK:STDOUT: %.a95: type = fn_type_with_self_type %Copy.Op.type, %Copy.facet.b8f [concrete]
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.specific_fn.dfa: <specific function> = specific_function %ptr.as.Copy.impl.Op.a21, @ptr.as.Copy.impl.Op(%Outer) [concrete]
// CHECK:STDOUT: %Copy.impl_witness.c7a: <witness> = impl_witness imports.%Copy.impl_witness_table.53c, @ptr.as.Copy.impl(%Inner) [concrete]
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.type.452: type = fn_type @ptr.as.Copy.impl.Op, @ptr.as.Copy.impl(%Inner) [concrete]
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.029: %ptr.as.Copy.impl.Op.type.452 = struct_value () [concrete]
// CHECK:STDOUT: %Copy.facet.9bf: %Copy.type = facet_value %ptr.36a, (%Copy.impl_witness.c7a) [concrete]
// CHECK:STDOUT: %.318: type = fn_type_with_self_type %Copy.Op.type, %Copy.facet.9bf [concrete]
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.specific_fn.68b: <specific function> = specific_function %ptr.as.Copy.impl.Op.029, @ptr.as.Copy.impl.Op(%Inner) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .Destroy = %Core.Destroy
// CHECK:STDOUT: .Copy = %Core.Copy
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: %Core.Copy: type = import_ref Core//prelude/parts/copy, Copy, loaded [concrete = constants.%Copy.type]
// CHECK:STDOUT: %Core.import_ref.0e4: @ptr.as.Copy.impl.%ptr.as.Copy.impl.Op.type (%ptr.as.Copy.impl.Op.type.31f) = import_ref Core//prelude/parts/copy, loc{{\d+_\d+}}, loaded [symbolic = @ptr.as.Copy.impl.%ptr.as.Copy.impl.Op (constants.%ptr.as.Copy.impl.Op.8a8)]
// CHECK:STDOUT: %Copy.impl_witness_table.53c = impl_witness_table (%Core.import_ref.0e4), @ptr.as.Copy.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Outer = %Outer.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Outer.decl: type = class_decl @Outer [concrete = constants.%Outer] {} {}
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
// CHECK:STDOUT: %a.patt: %pattern_type.95c = binding_pattern a [concrete]
// CHECK:STDOUT: %a.param_patt: %pattern_type.95c = value_param_pattern %a.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %a.param: %ptr.5df = value_param call_param0
// CHECK:STDOUT: %.loc45: type = splice_block %ptr.loc45 [concrete = constants.%ptr.5df] {
// CHECK:STDOUT: %Outer.ref.loc45: type = name_ref Outer, file.%Outer.decl [concrete = constants.%Outer]
// CHECK:STDOUT: %ptr.loc45: type = ptr_type %Outer.ref.loc45 [concrete = constants.%ptr.5df]
// CHECK:STDOUT: }
// CHECK:STDOUT: %a: %ptr.5df = bind_name a, %a.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Outer {
// CHECK:STDOUT: %Outer.F.decl: %Outer.F.type = fn_decl @Outer.F [concrete = constants.%Outer.F] {} {}
// CHECK:STDOUT: %Inner.decl: type = class_decl @Inner [concrete = constants.%Inner] {} {}
// CHECK:STDOUT: %Outer.H.decl: %Outer.H.type = fn_decl @Outer.H [concrete = constants.%Outer.H] {} {}
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%Outer [concrete = constants.%Outer]
// CHECK:STDOUT: %ptr.loc40: type = ptr_type %Self.ref [concrete = constants.%ptr.5df]
// CHECK:STDOUT: %.loc40: %Outer.elem.a16 = field_decl po, element0 [concrete]
// CHECK:STDOUT: %Outer.ref: type = name_ref Outer, file.%Outer.decl [concrete = constants.%Outer]
// CHECK:STDOUT: %ptr.loc41: type = ptr_type %Outer.ref [concrete = constants.%ptr.5df]
// CHECK:STDOUT: %.loc41: %Outer.elem.a16 = field_decl qo, element1 [concrete]
// CHECK:STDOUT: %Inner.ref: type = name_ref Inner, %Inner.decl [concrete = constants.%Inner]
// CHECK:STDOUT: %ptr.loc42: type = ptr_type %Inner.ref [concrete = constants.%ptr.36a]
// CHECK:STDOUT: %.loc42: %Outer.elem.fe9 = field_decl pi, element2 [concrete]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness constants.%struct_type.po.qo.pi [concrete = constants.%complete_type.e99]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Outer
// CHECK:STDOUT: .F = %Outer.F.decl
// CHECK:STDOUT: .Inner = %Inner.decl
// CHECK:STDOUT: .Outer = <poisoned>
// CHECK:STDOUT: .H = %Outer.H.decl
// CHECK:STDOUT: .po = %.loc40
// CHECK:STDOUT: .qo = %.loc41
// CHECK:STDOUT: .pi = %.loc42
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Inner {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%Inner [concrete = constants.%Inner]
// CHECK:STDOUT: %ptr.loc23: type = ptr_type %Self.ref [concrete = constants.%ptr.36a]
// CHECK:STDOUT: %.loc23: %Inner.elem.640 = field_decl pi, element0 [concrete]
// CHECK:STDOUT: %Outer.ref: type = name_ref Outer, file.%Outer.decl [concrete = constants.%Outer]
// CHECK:STDOUT: %ptr.loc24: type = ptr_type %Outer.ref [concrete = constants.%ptr.5df]
// CHECK:STDOUT: %.loc24: %Inner.elem.c30 = field_decl po, element1 [concrete]
// CHECK:STDOUT: %Inner.ref: type = name_ref Inner, @Outer.%Inner.decl [concrete = constants.%Inner]
// CHECK:STDOUT: %ptr.loc25: type = ptr_type %Inner.ref [concrete = constants.%ptr.36a]
// CHECK:STDOUT: %.loc25: %Inner.elem.640 = field_decl qi, element2 [concrete]
// CHECK:STDOUT: %Inner.G.decl: %Inner.G.type = fn_decl @Inner.G [concrete = constants.%Inner.G] {} {}
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness constants.%struct_type.pi.po.qi [concrete = constants.%complete_type.7ae]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Inner
// CHECK:STDOUT: .pi = %.loc23
// CHECK:STDOUT: .Outer = <poisoned>
// CHECK:STDOUT: .po = %.loc24
// CHECK:STDOUT: .Inner = <poisoned>
// CHECK:STDOUT: .qi = %.loc25
// CHECK:STDOUT: .G = %Inner.G.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Outer.F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %o.patt: %pattern_type.e74 = binding_pattern o [concrete]
// CHECK:STDOUT: %o.var_patt: %pattern_type.e74 = var_pattern %o.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %o.var: ref %Outer = var %o.var_patt
// CHECK:STDOUT: %Outer.ref: type = name_ref Outer, file.%Outer.decl [concrete = constants.%Outer]
// CHECK:STDOUT: %o: ref %Outer = bind_name o, %o.var
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %i.patt: %pattern_type.906 = binding_pattern i [concrete]
// CHECK:STDOUT: %i.var_patt: %pattern_type.906 = var_pattern %i.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %i.var: ref %Inner = var %i.var_patt
// CHECK:STDOUT: %Inner.ref: type = name_ref Inner, @Outer.%Inner.decl [concrete = constants.%Inner]
// CHECK:STDOUT: %i: ref %Inner = bind_name i, %i.var
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound.loc19: <bound method> = bound_method %i.var, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.b22
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.b22, @DestroyT.binding.as_type.as.Destroy.impl.Op(constants.%facet_value.c29) [concrete = constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.30e]
// CHECK:STDOUT: %bound_method.loc19: <bound method> = bound_method %i.var, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.1
// CHECK:STDOUT: %addr.loc19: %ptr.36a = addr_of %i.var
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.call.loc19: init %empty_tuple.type = call %bound_method.loc19(%addr.loc19)
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound.loc18: <bound method> = bound_method %o.var, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.5f7
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.5f7, @DestroyT.binding.as_type.as.Destroy.impl.Op(constants.%facet_value.4b4) [concrete = constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.324]
// CHECK:STDOUT: %bound_method.loc18: <bound method> = bound_method %o.var, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.2
// CHECK:STDOUT: %addr.loc18: %ptr.5df = addr_of %o.var
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.call.loc18: init %empty_tuple.type = call %bound_method.loc18(%addr.loc18)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Inner.G() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %o.patt: %pattern_type.e74 = binding_pattern o [concrete]
// CHECK:STDOUT: %o.var_patt: %pattern_type.e74 = var_pattern %o.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %o.var: ref %Outer = var %o.var_patt
// CHECK:STDOUT: %Outer.ref: type = name_ref Outer, file.%Outer.decl [concrete = constants.%Outer]
// CHECK:STDOUT: %o: ref %Outer = bind_name o, %o.var
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %i.patt: %pattern_type.906 = binding_pattern i [concrete]
// CHECK:STDOUT: %i.var_patt: %pattern_type.906 = var_pattern %i.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %i.var: ref %Inner = var %i.var_patt
// CHECK:STDOUT: %Inner.ref: type = name_ref Inner, @Outer.%Inner.decl [concrete = constants.%Inner]
// CHECK:STDOUT: %i: ref %Inner = bind_name i, %i.var
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound.loc30: <bound method> = bound_method %i.var, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.b22
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.b22, @DestroyT.binding.as_type.as.Destroy.impl.Op(constants.%facet_value.c29) [concrete = constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.30e]
// CHECK:STDOUT: %bound_method.loc30: <bound method> = bound_method %i.var, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.1
// CHECK:STDOUT: %addr.loc30: %ptr.36a = addr_of %i.var
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.call.loc30: init %empty_tuple.type = call %bound_method.loc30(%addr.loc30)
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound.loc29: <bound method> = bound_method %o.var, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.5f7
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.5f7, @DestroyT.binding.as_type.as.Destroy.impl.Op(constants.%facet_value.4b4) [concrete = constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.324]
// CHECK:STDOUT: %bound_method.loc29: <bound method> = bound_method %o.var, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.2
// CHECK:STDOUT: %addr.loc29: %ptr.5df = addr_of %o.var
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.call.loc29: init %empty_tuple.type = call %bound_method.loc29(%addr.loc29)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Outer.H() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %o.patt: %pattern_type.e74 = binding_pattern o [concrete]
// CHECK:STDOUT: %o.var_patt: %pattern_type.e74 = var_pattern %o.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %o.var: ref %Outer = var %o.var_patt
// CHECK:STDOUT: %Outer.ref: type = name_ref Outer, file.%Outer.decl [concrete = constants.%Outer]
// CHECK:STDOUT: %o: ref %Outer = bind_name o, %o.var
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %i.patt: %pattern_type.906 = binding_pattern i [concrete]
// CHECK:STDOUT: %i.var_patt: %pattern_type.906 = var_pattern %i.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %i.var: ref %Inner = var %i.var_patt
// CHECK:STDOUT: %Inner.ref: type = name_ref Inner, @Outer.%Inner.decl [concrete = constants.%Inner]
// CHECK:STDOUT: %i: ref %Inner = bind_name i, %i.var
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound.loc37: <bound method> = bound_method %i.var, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.b22
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.1: <specific function> = specific_function constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.b22, @DestroyT.binding.as_type.as.Destroy.impl.Op(constants.%facet_value.c29) [concrete = constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.30e]
// CHECK:STDOUT: %bound_method.loc37: <bound method> = bound_method %i.var, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.1
// CHECK:STDOUT: %addr.loc37: %ptr.36a = addr_of %i.var
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.call.loc37: init %empty_tuple.type = call %bound_method.loc37(%addr.loc37)
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound.loc36: <bound method> = bound_method %o.var, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.5f7
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.2: <specific function> = specific_function constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.5f7, @DestroyT.binding.as_type.as.Destroy.impl.Op(constants.%facet_value.4b4) [concrete = constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.324]
// CHECK:STDOUT: %bound_method.loc36: <bound method> = bound_method %o.var, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn.2
// CHECK:STDOUT: %addr.loc36: %ptr.5df = addr_of %o.var
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.call.loc36: init %empty_tuple.type = call %bound_method.loc36(%addr.loc36)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%a.param: %ptr.5df) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %b.patt: %pattern_type.27f = binding_pattern b [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %a.ref.loc46: %ptr.5df = name_ref a, %a
// CHECK:STDOUT: %.loc46_26: ref %Outer = deref %a.ref.loc46
// CHECK:STDOUT: %pi.ref.loc46: %Outer.elem.fe9 = name_ref pi, @Outer.%.loc42 [concrete = @Outer.%.loc42]
// CHECK:STDOUT: %.loc46_29.1: ref %ptr.36a = class_element_access %.loc46_26, element2
// CHECK:STDOUT: %.loc46_21: type = splice_block %ptr.loc46 [concrete = constants.%ptr.36a] {
// CHECK:STDOUT: %Outer.ref.loc46: type = name_ref Outer, file.%Outer.decl [concrete = constants.%Outer]
// CHECK:STDOUT: %Inner.ref: type = name_ref Inner, @Outer.%Inner.decl [concrete = constants.%Inner]
// CHECK:STDOUT: %ptr.loc46: type = ptr_type %Inner.ref [concrete = constants.%ptr.36a]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc46_29.2: %ptr.36a = bind_value %.loc46_29.1
// CHECK:STDOUT: %b: %ptr.36a = bind_name b, %.loc46_29.2
// CHECK:STDOUT: %a.ref.loc48_3: %ptr.5df = name_ref a, %a
// CHECK:STDOUT: %.loc48_4.1: ref %Outer = deref %a.ref.loc48_3
// CHECK:STDOUT: %po.ref.loc48: %Outer.elem.a16 = name_ref po, @Outer.%.loc40 [concrete = @Outer.%.loc40]
// CHECK:STDOUT: %.loc48_4.2: ref %ptr.5df = class_element_access %.loc48_4.1, element0
// CHECK:STDOUT: %a.ref.loc48_11: %ptr.5df = name_ref a, %a
// CHECK:STDOUT: %impl.elem0.loc48: %.a95 = impl_witness_access constants.%Copy.impl_witness.b32, element0 [concrete = constants.%ptr.as.Copy.impl.Op.a21]
// CHECK:STDOUT: %bound_method.loc48_11.1: <bound method> = bound_method %a.ref.loc48_11, %impl.elem0.loc48
// CHECK:STDOUT: %specific_fn.loc48: <specific function> = specific_function %impl.elem0.loc48, @ptr.as.Copy.impl.Op(constants.%Outer) [concrete = constants.%ptr.as.Copy.impl.Op.specific_fn.dfa]
// CHECK:STDOUT: %bound_method.loc48_11.2: <bound method> = bound_method %a.ref.loc48_11, %specific_fn.loc48
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.call.loc48: init %ptr.5df = call %bound_method.loc48_11.2(%a.ref.loc48_11)
// CHECK:STDOUT: assign %.loc48_4.2, %ptr.as.Copy.impl.Op.call.loc48
// CHECK:STDOUT: %a.ref.loc49_3: %ptr.5df = name_ref a, %a
// CHECK:STDOUT: %.loc49_4.1: ref %Outer = deref %a.ref.loc49_3
// CHECK:STDOUT: %qo.ref: %Outer.elem.a16 = name_ref qo, @Outer.%.loc41 [concrete = @Outer.%.loc41]
// CHECK:STDOUT: %.loc49_4.2: ref %ptr.5df = class_element_access %.loc49_4.1, element1
// CHECK:STDOUT: %a.ref.loc49_11: %ptr.5df = name_ref a, %a
// CHECK:STDOUT: %impl.elem0.loc49: %.a95 = impl_witness_access constants.%Copy.impl_witness.b32, element0 [concrete = constants.%ptr.as.Copy.impl.Op.a21]
// CHECK:STDOUT: %bound_method.loc49_11.1: <bound method> = bound_method %a.ref.loc49_11, %impl.elem0.loc49
// CHECK:STDOUT: %specific_fn.loc49: <specific function> = specific_function %impl.elem0.loc49, @ptr.as.Copy.impl.Op(constants.%Outer) [concrete = constants.%ptr.as.Copy.impl.Op.specific_fn.dfa]
// CHECK:STDOUT: %bound_method.loc49_11.2: <bound method> = bound_method %a.ref.loc49_11, %specific_fn.loc49
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.call.loc49: init %ptr.5df = call %bound_method.loc49_11.2(%a.ref.loc49_11)
// CHECK:STDOUT: assign %.loc49_4.2, %ptr.as.Copy.impl.Op.call.loc49
// CHECK:STDOUT: %a.ref.loc50_3: %ptr.5df = name_ref a, %a
// CHECK:STDOUT: %.loc50_4.1: ref %Outer = deref %a.ref.loc50_3
// CHECK:STDOUT: %pi.ref.loc50_4: %Outer.elem.fe9 = name_ref pi, @Outer.%.loc42 [concrete = @Outer.%.loc42]
// CHECK:STDOUT: %.loc50_4.2: ref %ptr.36a = class_element_access %.loc50_4.1, element2
// CHECK:STDOUT: %a.ref.loc50_11: %ptr.5df = name_ref a, %a
// CHECK:STDOUT: %.loc50_12.1: ref %Outer = deref %a.ref.loc50_11
// CHECK:STDOUT: %pi.ref.loc50_12: %Outer.elem.fe9 = name_ref pi, @Outer.%.loc42 [concrete = @Outer.%.loc42]
// CHECK:STDOUT: %.loc50_12.2: ref %ptr.36a = class_element_access %.loc50_12.1, element2
// CHECK:STDOUT: %.loc50_12.3: %ptr.36a = bind_value %.loc50_12.2
// CHECK:STDOUT: %impl.elem0.loc50: %.318 = impl_witness_access constants.%Copy.impl_witness.c7a, element0 [concrete = constants.%ptr.as.Copy.impl.Op.029]
// CHECK:STDOUT: %bound_method.loc50_12.1: <bound method> = bound_method %.loc50_12.3, %impl.elem0.loc50
// CHECK:STDOUT: %specific_fn.loc50: <specific function> = specific_function %impl.elem0.loc50, @ptr.as.Copy.impl.Op(constants.%Inner) [concrete = constants.%ptr.as.Copy.impl.Op.specific_fn.68b]
// CHECK:STDOUT: %bound_method.loc50_12.2: <bound method> = bound_method %.loc50_12.3, %specific_fn.loc50
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.call.loc50: init %ptr.36a = call %bound_method.loc50_12.2(%.loc50_12.3)
// CHECK:STDOUT: assign %.loc50_4.2, %ptr.as.Copy.impl.Op.call.loc50
// CHECK:STDOUT: %b.ref.loc51: %ptr.36a = name_ref b, %b
// CHECK:STDOUT: %.loc51_4.1: ref %Inner = deref %b.ref.loc51
// CHECK:STDOUT: %po.ref.loc51: %Inner.elem.c30 = name_ref po, @Inner.%.loc24 [concrete = @Inner.%.loc24]
// CHECK:STDOUT: %.loc51_4.2: ref %ptr.5df = class_element_access %.loc51_4.1, element1
// CHECK:STDOUT: %a.ref.loc51: %ptr.5df = name_ref a, %a
// CHECK:STDOUT: %impl.elem0.loc51: %.a95 = impl_witness_access constants.%Copy.impl_witness.b32, element0 [concrete = constants.%ptr.as.Copy.impl.Op.a21]
// CHECK:STDOUT: %bound_method.loc51_11.1: <bound method> = bound_method %a.ref.loc51, %impl.elem0.loc51
// CHECK:STDOUT: %specific_fn.loc51: <specific function> = specific_function %impl.elem0.loc51, @ptr.as.Copy.impl.Op(constants.%Outer) [concrete = constants.%ptr.as.Copy.impl.Op.specific_fn.dfa]
// CHECK:STDOUT: %bound_method.loc51_11.2: <bound method> = bound_method %a.ref.loc51, %specific_fn.loc51
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.call.loc51: init %ptr.5df = call %bound_method.loc51_11.2(%a.ref.loc51)
// CHECK:STDOUT: assign %.loc51_4.2, %ptr.as.Copy.impl.Op.call.loc51
// CHECK:STDOUT: %b.ref.loc52: %ptr.36a = name_ref b, %b
// CHECK:STDOUT: %.loc52_4.1: ref %Inner = deref %b.ref.loc52
// CHECK:STDOUT: %pi.ref.loc52_4: %Inner.elem.640 = name_ref pi, @Inner.%.loc23 [concrete = @Inner.%.loc23]
// CHECK:STDOUT: %.loc52_4.2: ref %ptr.36a = class_element_access %.loc52_4.1, element0
// CHECK:STDOUT: %a.ref.loc52: %ptr.5df = name_ref a, %a
// CHECK:STDOUT: %.loc52_12.1: ref %Outer = deref %a.ref.loc52
// CHECK:STDOUT: %pi.ref.loc52_12: %Outer.elem.fe9 = name_ref pi, @Outer.%.loc42 [concrete = @Outer.%.loc42]
// CHECK:STDOUT: %.loc52_12.2: ref %ptr.36a = class_element_access %.loc52_12.1, element2
// CHECK:STDOUT: %.loc52_12.3: %ptr.36a = bind_value %.loc52_12.2
// CHECK:STDOUT: %impl.elem0.loc52: %.318 = impl_witness_access constants.%Copy.impl_witness.c7a, element0 [concrete = constants.%ptr.as.Copy.impl.Op.029]
// CHECK:STDOUT: %bound_method.loc52_12.1: <bound method> = bound_method %.loc52_12.3, %impl.elem0.loc52
// CHECK:STDOUT: %specific_fn.loc52: <specific function> = specific_function %impl.elem0.loc52, @ptr.as.Copy.impl.Op(constants.%Inner) [concrete = constants.%ptr.as.Copy.impl.Op.specific_fn.68b]
// CHECK:STDOUT: %bound_method.loc52_12.2: <bound method> = bound_method %.loc52_12.3, %specific_fn.loc52
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.call.loc52: init %ptr.36a = call %bound_method.loc52_12.2(%.loc52_12.3)
// CHECK:STDOUT: assign %.loc52_4.2, %ptr.as.Copy.impl.Op.call.loc52
// CHECK:STDOUT: %b.ref.loc53: %ptr.36a = name_ref b, %b
// CHECK:STDOUT: %.loc53_4.1: ref %Inner = deref %b.ref.loc53
// CHECK:STDOUT: %qi.ref: %Inner.elem.640 = name_ref qi, @Inner.%.loc25 [concrete = @Inner.%.loc25]
// CHECK:STDOUT: %.loc53_4.2: ref %ptr.36a = class_element_access %.loc53_4.1, element2
// CHECK:STDOUT: %a.ref.loc53: %ptr.5df = name_ref a, %a
// CHECK:STDOUT: %.loc53_12.1: ref %Outer = deref %a.ref.loc53
// CHECK:STDOUT: %pi.ref.loc53: %Outer.elem.fe9 = name_ref pi, @Outer.%.loc42 [concrete = @Outer.%.loc42]
// CHECK:STDOUT: %.loc53_12.2: ref %ptr.36a = class_element_access %.loc53_12.1, element2
// CHECK:STDOUT: %.loc53_12.3: %ptr.36a = bind_value %.loc53_12.2
// CHECK:STDOUT: %impl.elem0.loc53: %.318 = impl_witness_access constants.%Copy.impl_witness.c7a, element0 [concrete = constants.%ptr.as.Copy.impl.Op.029]
// CHECK:STDOUT: %bound_method.loc53_12.1: <bound method> = bound_method %.loc53_12.3, %impl.elem0.loc53
// CHECK:STDOUT: %specific_fn.loc53: <specific function> = specific_function %impl.elem0.loc53, @ptr.as.Copy.impl.Op(constants.%Inner) [concrete = constants.%ptr.as.Copy.impl.Op.specific_fn.68b]
// CHECK:STDOUT: %bound_method.loc53_12.2: <bound method> = bound_method %.loc53_12.3, %specific_fn.loc53
// CHECK:STDOUT: %ptr.as.Copy.impl.Op.call.loc53: init %ptr.36a = call %bound_method.loc53_12.2(%.loc53_12.3)
// CHECK:STDOUT: assign %.loc53_4.2, %ptr.as.Copy.impl.Op.call.loc53
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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