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carbon-lang/toolchain/lower/testdata/array/iterate.carbon
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Jon Ross-Perkins c5eba90317 Change Destroy to use a CustomWitness instead of a blanket impl (#6512) 
Pursuant to recent decisions on #6124, switch `Destroy` to use a
`CustomWitness` for its implementation. Right now this is manufacturing
no-op implementation functions on each lookup, which obviously isn't
ideal but is intended as a first pass. I'm mostly trying to find the
right balance between updating the approach to reflect new decisions,
while still breaking apart work in a way.

The `CoreInterface` logic is intended to build on `CoreIdentifier`
support. We have a number of additional interfaces that require
specialized logic, and that'll extend pretty far with C++ interop, so it
seemed easiest to have a generic function for it. That's what's
replacing the logic inside C++ interop that was doing string comparisons
(which could have already been moved to `CoreIdentifier`, I just missed
it in my first pass).

This adds `CustomWitness` support because the `Destroy` witnesses can be
imported cross-file. `CustomWitness` was previously only used for C++
types, which don't yet support import, which is why that wasn't
previously an issue. The addition of `query_specific_interface_id` is
similarly needed in order to get correct sorting of witness blocks when
imported.

This PR also removes builtin constraint logic (note this is in a
separate commit to help review; it's not a separate PR because it's
difficult to split apart without tests breaking). This had been made
generic with the expectation that destroy, copy, move, and conversions
would all need related support. Under the new decision, we are not going
to do blanket impls and will instead just manufacture a `CustomWitness`
for everything.

A lot of SemIR fingerprints change, but that's probably because the
addition of `Destroy` on core classes is yielding structural changes.
2025-12-19 18:36:06 +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/lower/testdata/array/iterate.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/array/iterate.carbon
fn G(n: i32);
fn F() {
let a: array(i32, 6) = (1, 2, 3, 4, 5, 6);
for (n: i32 in a) {
G(n);
}
}
// CHECK:STDOUT: ; ModuleID = 'iterate.carbon'
// CHECK:STDOUT: source_filename = "iterate.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: @array.loc16_43.22 = internal constant [6 x i32] [i32 1, i32 2, i32 3, i32 4, i32 5, i32 6]
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CG.Main(i32)
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CF.Main() #0 !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc16_43.3.temp = alloca [6 x i32], align 4, !dbg !7
// CHECK:STDOUT: %var = alloca i32, align 4, !dbg !8
// CHECK:STDOUT: %.loc17_19.1.temp = alloca { i32, i1 }, align 8, !dbg !8
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc16_43.3.temp), !dbg !7
// CHECK:STDOUT: %.loc16_43.4.array.index = getelementptr inbounds [6 x i32], ptr %.loc16_43.3.temp, i32 0, i64 0, !dbg !7
// CHECK:STDOUT: %.loc16_43.7.array.index = getelementptr inbounds [6 x i32], ptr %.loc16_43.3.temp, i32 0, i64 1, !dbg !7
// CHECK:STDOUT: %.loc16_43.10.array.index = getelementptr inbounds [6 x i32], ptr %.loc16_43.3.temp, i32 0, i64 2, !dbg !7
// CHECK:STDOUT: %.loc16_43.13.array.index = getelementptr inbounds [6 x i32], ptr %.loc16_43.3.temp, i32 0, i64 3, !dbg !7
// CHECK:STDOUT: %.loc16_43.16.array.index = getelementptr inbounds [6 x i32], ptr %.loc16_43.3.temp, i32 0, i64 4, !dbg !7
// CHECK:STDOUT: %.loc16_43.19.array.index = getelementptr inbounds [6 x i32], ptr %.loc16_43.3.temp, i32 0, i64 5, !dbg !7
// CHECK:STDOUT: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %.loc16_43.3.temp, ptr align 4 @array.loc16_43.22, i64 24, i1 false), !dbg !7
// CHECK:STDOUT: %array_type.as.Iterate.impl.NewCursor.call = call i32 @"_CNewCursor.7711e6f0e1563534:Iterate.Core.a4ad391f91521d70"(ptr %.loc16_43.3.temp), !dbg !8
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %var), !dbg !8
// CHECK:STDOUT: store i32 %array_type.as.Iterate.impl.NewCursor.call, ptr %var, align 4, !dbg !8
// CHECK:STDOUT: br label %for.next, !dbg !8
// CHECK:STDOUT:
// CHECK:STDOUT: for.next: ; preds = %for.body, %entry
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc17_19.1.temp), !dbg !8
// CHECK:STDOUT: call void @"_CNext.7711e6f0e1563534:Iterate.Core.a4ad391f91521d70"(ptr %.loc17_19.1.temp, ptr %.loc16_43.3.temp, ptr %var), !dbg !8
// CHECK:STDOUT: %Optional.HasValue.call = call i1 @_CHasValue.Optional.Core.75e118c322ac5019(ptr %.loc17_19.1.temp), !dbg !8
// CHECK:STDOUT: br i1 %Optional.HasValue.call, label %for.body, label %for.done, !dbg !8
// CHECK:STDOUT:
// CHECK:STDOUT: for.body: ; preds = %for.next
// CHECK:STDOUT: %Optional.Get.call = call i32 @_CGet.Optional.Core.75e118c322ac5019(ptr %.loc17_19.1.temp), !dbg !8
// CHECK:STDOUT: call void @_CG.Main(i32 %Optional.Get.call), !dbg !9
// CHECK:STDOUT: br label %for.next, !dbg !10
// CHECK:STDOUT:
// CHECK:STDOUT: for.done: ; preds = %for.next
// CHECK:STDOUT: ret void, !dbg !11
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias writeonly captures(none), ptr noalias readonly captures(none), i64, i1 immarg) #2
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr i32 @"_CNewCursor.7711e6f0e1563534:Iterate.Core.a4ad391f91521d70"(ptr %self) #0 !dbg !12 {
// CHECK:STDOUT: ret i32 0, !dbg !20
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @"_CNext.7711e6f0e1563534:Iterate.Core.a4ad391f91521d70"(ptr sret({ i32, i1 }) %return, ptr %self, ptr %cursor) #0 !dbg !21 {
// CHECK:STDOUT: %1 = load i32, ptr %cursor, align 4, !dbg !27
// CHECK:STDOUT: %2 = icmp slt i32 %1, 6, !dbg !27
// CHECK:STDOUT: br i1 %2, label %3, label %7, !dbg !28
// CHECK:STDOUT:
// CHECK:STDOUT: 3: ; preds = %0
// CHECK:STDOUT: call void @"_COp.Int.Core:Inc.Core.be1e879c1ad406d8"(ptr %cursor), !dbg !29
// CHECK:STDOUT: %4 = load i32, ptr %cursor, align 4, !dbg !30
// CHECK:STDOUT: %5 = sub i32 %4, 1, !dbg !30
// CHECK:STDOUT: %array.index = getelementptr inbounds [6 x i32], ptr %self, i32 0, i32 %5, !dbg !31
// CHECK:STDOUT: %6 = load i32, ptr %array.index, align 4, !dbg !31
// CHECK:STDOUT: call void @_CSome.Optional.Core.75e118c322ac5019(ptr %return, i32 %6), !dbg !32
// CHECK:STDOUT: ret void, !dbg !33
// CHECK:STDOUT:
// CHECK:STDOUT: 7: ; preds = %0
// CHECK:STDOUT: call void @_CNone.Optional.Core.75e118c322ac5019(ptr %return), !dbg !34
// CHECK:STDOUT: ret void, !dbg !35
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr i1 @_CHasValue.Optional.Core.75e118c322ac5019(ptr %self) #0 !dbg !36 {
// CHECK:STDOUT: %1 = call i1 @"_CHas.3e8267224c5dc9c2:OptionalStorage.Core.329e9a7481f16207"(ptr %self), !dbg !42
// CHECK:STDOUT: ret i1 %1, !dbg !43
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr i32 @_CGet.Optional.Core.75e118c322ac5019(ptr %self) #0 !dbg !44 {
// CHECK:STDOUT: %1 = call i32 @"_CGet.3e8267224c5dc9c2:OptionalStorage.Core.329e9a7481f16207"(ptr %self), !dbg !47
// CHECK:STDOUT: ret i32 %1, !dbg !48
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @"_COp.Int.Core:Inc.Core.be1e879c1ad406d8"(ptr %self) #0 !dbg !49 {
// CHECK:STDOUT: call void @"_COp:thunk.Int.Core:AddAssignWith.Core.dcdd24268af36579"(ptr %self, i32 1), !dbg !55
// CHECK:STDOUT: ret void, !dbg !56
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @_CSome.Optional.Core.75e118c322ac5019(ptr sret({ i32, i1 }) %return, i32 %value) #0 !dbg !57 {
// CHECK:STDOUT: call void @"_CSome.3e8267224c5dc9c2:OptionalStorage.Core.329e9a7481f16207"(ptr %return, i32 %value), !dbg !62
// CHECK:STDOUT: ret void, !dbg !63
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @_CNone.Optional.Core.75e118c322ac5019(ptr sret({ i32, i1 }) %return) #0 !dbg !64 {
// CHECK:STDOUT: call void @"_CNone.3e8267224c5dc9c2:OptionalStorage.Core.329e9a7481f16207"(ptr %return), !dbg !67
// CHECK:STDOUT: ret void, !dbg !68
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr i1 @"_CHas.3e8267224c5dc9c2:OptionalStorage.Core.329e9a7481f16207"(ptr %value) #0 !dbg !69 {
// CHECK:STDOUT: %has_value = getelementptr inbounds nuw { i32, i1 }, ptr %value, i32 0, i32 1, !dbg !72
// CHECK:STDOUT: %1 = load i8, ptr %has_value, align 1, !dbg !72
// CHECK:STDOUT: %2 = trunc i8 %1 to i1, !dbg !72
// CHECK:STDOUT: ret i1 %2, !dbg !73
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr i32 @"_CGet.3e8267224c5dc9c2:OptionalStorage.Core.329e9a7481f16207"(ptr %value) #0 !dbg !74 {
// CHECK:STDOUT: %value1 = getelementptr inbounds nuw { i32, i1 }, ptr %value, i32 0, i32 0, !dbg !77
// CHECK:STDOUT: %1 = load i32, ptr %value1, align 4, !dbg !77
// CHECK:STDOUT: ret i32 %1, !dbg !78
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline nounwind
// CHECK:STDOUT: define linkonce_odr void @"_COp:thunk.Int.Core:AddAssignWith.Core.dcdd24268af36579"(ptr %self, i32 %other) #3 !dbg !79 {
// CHECK:STDOUT: %1 = call i32 @"_CConvert.1e58d10da180d7d9:ImplicitAs.Core.255ef555a3d2f793"(i32 %other), !dbg !85
// CHECK:STDOUT: %2 = load i32, ptr %self, align 4, !dbg !86
// CHECK:STDOUT: %3 = add i32 %2, %1, !dbg !86
// CHECK:STDOUT: store i32 %3, ptr %self, align 4, !dbg !86
// CHECK:STDOUT: ret void, !dbg !86
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @"_CSome.3e8267224c5dc9c2:OptionalStorage.Core.329e9a7481f16207"(ptr sret({ i32, i1 }) %return, i32 %self) #0 !dbg !87 {
// CHECK:STDOUT: %value = getelementptr inbounds nuw { i32, i1 }, ptr %return, i32 0, i32 0, !dbg !90
// CHECK:STDOUT: store i32 %self, ptr %value, align 4, !dbg !90
// CHECK:STDOUT: %has_value = getelementptr inbounds nuw { i32, i1 }, ptr %return, i32 0, i32 1, !dbg !91
// CHECK:STDOUT: store i8 1, ptr %has_value, align 1, !dbg !91
// CHECK:STDOUT: ret void, !dbg !92
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @"_CNone.3e8267224c5dc9c2:OptionalStorage.Core.329e9a7481f16207"(ptr sret({ i32, i1 }) %return) #0 !dbg !93 {
// CHECK:STDOUT: %has_value = getelementptr inbounds nuw { i32, i1 }, ptr %return, i32 0, i32 1, !dbg !94
// CHECK:STDOUT: store i8 0, ptr %has_value, align 1, !dbg !94
// CHECK:STDOUT: ret void, !dbg !95
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr i32 @"_CConvert.1e58d10da180d7d9:ImplicitAs.Core.255ef555a3d2f793"(i32 %self) #0 !dbg !96 {
// CHECK:STDOUT: ret i32 %self, !dbg !102
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 2, 1, 0 }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nounwind }
// CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT: attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT: attributes #3 = { alwaysinline nounwind }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
// CHECK:STDOUT: !llvm.dbg.cu = !{!2}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !3 = !DIFile(filename: "iterate.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main", scope: null, file: !3, line: 15, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{null}
// CHECK:STDOUT: !7 = !DILocation(line: 16, column: 26, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 17, column: 7, scope: !4)
// CHECK:STDOUT: !9 = !DILocation(line: 18, column: 5, scope: !4)
// CHECK:STDOUT: !10 = !DILocation(line: 17, column: 3, scope: !4)
// CHECK:STDOUT: !11 = !DILocation(line: 15, column: 1, scope: !4)
// CHECK:STDOUT: !12 = distinct !DISubprogram(name: "NewCursor", linkageName: "_CNewCursor.7711e6f0e1563534:Iterate.Core.a4ad391f91521d70", scope: null, file: !13, line: 23, type: !14, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !18)
// CHECK:STDOUT: !13 = !DIFile(filename: "{{.*}}/prelude/iterate.carbon", directory: "")
// CHECK:STDOUT: !14 = !DISubroutineType(types: !15)
// CHECK:STDOUT: !15 = !{!16, !17}
// CHECK:STDOUT: !16 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
// CHECK:STDOUT: !17 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 8)
// CHECK:STDOUT: !18 = !{!19}
// CHECK:STDOUT: !19 = !DILocalVariable(arg: 1, scope: !12, type: !17)
// CHECK:STDOUT: !20 = !DILocation(line: 23, column: 39, scope: !12)
// CHECK:STDOUT: !21 = distinct !DISubprogram(name: "Next", linkageName: "_CNext.7711e6f0e1563534:Iterate.Core.a4ad391f91521d70", scope: null, file: !13, line: 24, type: !22, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !24)
// CHECK:STDOUT: !22 = !DISubroutineType(types: !23)
// CHECK:STDOUT: !23 = !{!17, !17, !17}
// CHECK:STDOUT: !24 = !{!25, !26}
// CHECK:STDOUT: !25 = !DILocalVariable(arg: 1, scope: !21, type: !17)
// CHECK:STDOUT: !26 = !DILocalVariable(arg: 2, scope: !21, type: !17)
// CHECK:STDOUT: !27 = !DILocation(line: 25, column: 9, scope: !21)
// CHECK:STDOUT: !28 = !DILocation(line: 25, column: 8, scope: !21)
// CHECK:STDOUT: !29 = !DILocation(line: 26, column: 7, scope: !21)
// CHECK:STDOUT: !30 = !DILocation(line: 27, column: 36, scope: !21)
// CHECK:STDOUT: !31 = !DILocation(line: 27, column: 31, scope: !21)
// CHECK:STDOUT: !32 = !DILocation(line: 27, column: 14, scope: !21)
// CHECK:STDOUT: !33 = !DILocation(line: 27, column: 7, scope: !21)
// CHECK:STDOUT: !34 = !DILocation(line: 29, column: 14, scope: !21)
// CHECK:STDOUT: !35 = !DILocation(line: 29, column: 7, scope: !21)
// CHECK:STDOUT: !36 = distinct !DISubprogram(name: "HasValue", linkageName: "_CHasValue.Optional.Core.75e118c322ac5019", scope: null, file: !37, line: 32, type: !38, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !40)
// CHECK:STDOUT: !37 = !DIFile(filename: "{{.*}}/prelude/types/optional.carbon", directory: "")
// CHECK:STDOUT: !38 = !DISubroutineType(types: !39)
// CHECK:STDOUT: !39 = !{!17, !17}
// CHECK:STDOUT: !40 = !{!41}
// CHECK:STDOUT: !41 = !DILocalVariable(arg: 1, scope: !36, type: !17)
// CHECK:STDOUT: !42 = !DILocation(line: 33, column: 12, scope: !36)
// CHECK:STDOUT: !43 = !DILocation(line: 33, column: 5, scope: !36)
// CHECK:STDOUT: !44 = distinct !DISubprogram(name: "Get", linkageName: "_CGet.Optional.Core.75e118c322ac5019", scope: null, file: !37, line: 35, type: !14, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !45)
// CHECK:STDOUT: !45 = !{!46}
// CHECK:STDOUT: !46 = !DILocalVariable(arg: 1, scope: !44, type: !17)
// CHECK:STDOUT: !47 = !DILocation(line: 36, column: 12, scope: !44)
// CHECK:STDOUT: !48 = !DILocation(line: 36, column: 5, scope: !44)
// CHECK:STDOUT: !49 = distinct !DISubprogram(name: "Op", linkageName: "_COp.Int.Core:Inc.Core.be1e879c1ad406d8", scope: null, file: !50, line: 339, type: !51, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !53)
// CHECK:STDOUT: !50 = !DIFile(filename: "{{.*}}/prelude/types/int.carbon", directory: "")
// CHECK:STDOUT: !51 = !DISubroutineType(types: !52)
// CHECK:STDOUT: !52 = !{null, !16}
// CHECK:STDOUT: !53 = !{!54}
// CHECK:STDOUT: !54 = !DILocalVariable(arg: 1, scope: !49, type: !16)
// CHECK:STDOUT: !55 = !DILocation(line: 341, column: 5, scope: !49)
// CHECK:STDOUT: !56 = !DILocation(line: 339, column: 3, scope: !49)
// CHECK:STDOUT: !57 = distinct !DISubprogram(name: "Some", linkageName: "_CSome.Optional.Core.75e118c322ac5019", scope: null, file: !37, line: 29, type: !58, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !60)
// CHECK:STDOUT: !58 = !DISubroutineType(types: !59)
// CHECK:STDOUT: !59 = !{!17, !16}
// CHECK:STDOUT: !60 = !{!61}
// CHECK:STDOUT: !61 = !DILocalVariable(arg: 1, scope: !57, type: !16)
// CHECK:STDOUT: !62 = !DILocation(line: 30, column: 12, scope: !57)
// CHECK:STDOUT: !63 = !DILocation(line: 30, column: 5, scope: !57)
// CHECK:STDOUT: !64 = distinct !DISubprogram(name: "None", linkageName: "_CNone.Optional.Core.75e118c322ac5019", scope: null, file: !37, line: 26, type: !65, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !65 = !DISubroutineType(types: !66)
// CHECK:STDOUT: !66 = !{!17}
// CHECK:STDOUT: !67 = !DILocation(line: 27, column: 12, scope: !64)
// CHECK:STDOUT: !68 = !DILocation(line: 27, column: 5, scope: !64)
// CHECK:STDOUT: !69 = distinct !DISubprogram(name: "Has", linkageName: "_CHas.3e8267224c5dc9c2:OptionalStorage.Core.329e9a7481f16207", scope: null, file: !37, line: 112, type: !38, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !70)
// CHECK:STDOUT: !70 = !{!71}
// CHECK:STDOUT: !71 = !DILocalVariable(arg: 1, scope: !69, type: !17)
// CHECK:STDOUT: !72 = !DILocation(line: 113, column: 12, scope: !69)
// CHECK:STDOUT: !73 = !DILocation(line: 113, column: 5, scope: !69)
// CHECK:STDOUT: !74 = distinct !DISubprogram(name: "Get", linkageName: "_CGet.3e8267224c5dc9c2:OptionalStorage.Core.329e9a7481f16207", scope: null, file: !37, line: 115, type: !14, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !75)
// CHECK:STDOUT: !75 = !{!76}
// CHECK:STDOUT: !76 = !DILocalVariable(arg: 1, scope: !74, type: !17)
// CHECK:STDOUT: !77 = !DILocation(line: 116, column: 12, scope: !74)
// CHECK:STDOUT: !78 = !DILocation(line: 116, column: 5, scope: !74)
// CHECK:STDOUT: !79 = distinct !DISubprogram(name: "Op", linkageName: "_COp:thunk.Int.Core:AddAssignWith.Core.dcdd24268af36579", scope: null, file: !50, line: 275, type: !80, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !82)
// CHECK:STDOUT: !80 = !DISubroutineType(types: !81)
// CHECK:STDOUT: !81 = !{null, !16, !16}
// CHECK:STDOUT: !82 = !{!83, !84}
// CHECK:STDOUT: !83 = !DILocalVariable(arg: 1, scope: !79, type: !16)
// CHECK:STDOUT: !84 = !DILocalVariable(arg: 2, scope: !79, type: !16)
// CHECK:STDOUT: !85 = !DILocation(line: 4294967295, scope: !79)
// CHECK:STDOUT: !86 = !DILocation(line: 275, column: 3, scope: !79)
// CHECK:STDOUT: !87 = distinct !DISubprogram(name: "Some", linkageName: "_CSome.3e8267224c5dc9c2:OptionalStorage.Core.329e9a7481f16207", scope: null, file: !37, line: 104, type: !58, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !88)
// CHECK:STDOUT: !88 = !{!89}
// CHECK:STDOUT: !89 = !DILocalVariable(arg: 1, scope: !87, type: !16)
// CHECK:STDOUT: !90 = !DILocation(line: 108, column: 5, scope: !87)
// CHECK:STDOUT: !91 = !DILocation(line: 109, column: 5, scope: !87)
// CHECK:STDOUT: !92 = !DILocation(line: 110, column: 5, scope: !87)
// CHECK:STDOUT: !93 = distinct !DISubprogram(name: "None", linkageName: "_CNone.3e8267224c5dc9c2:OptionalStorage.Core.329e9a7481f16207", scope: null, file: !37, line: 99, type: !65, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !94 = !DILocation(line: 101, column: 5, scope: !93)
// CHECK:STDOUT: !95 = !DILocation(line: 102, column: 5, scope: !93)
// CHECK:STDOUT: !96 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.1e58d10da180d7d9:ImplicitAs.Core.255ef555a3d2f793", scope: null, file: !97, line: 24, type: !98, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !100)
// CHECK:STDOUT: !97 = !DIFile(filename: "{{.*}}/prelude/operators/as.carbon", directory: "")
// CHECK:STDOUT: !98 = !DISubroutineType(types: !99)
// CHECK:STDOUT: !99 = !{!16, !16}
// CHECK:STDOUT: !100 = !{!101}
// CHECK:STDOUT: !101 = !DILocalVariable(arg: 1, scope: !96, type: !16)
// CHECK:STDOUT: !102 = !DILocation(line: 24, column: 38, scope: !96)
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