Files
carbon-lang/toolchain/lower/testdata/interop/cpp/function/export/generic.carbon
T
Dana Jansens a5ba0a0f45 Use GetConstantValueInSpecific to get the impl's specific interface after deduction (#7584)
During impl lookup, for each (generic) impl candidate, we form a
specific for that impl by deducing its generic arguments. Then we
compare the query interface against the impl's specific interface. That
comparison needs the deduced arguments applied to the impl's specific
interface. Previously we were doing this by getting the impl's
constraint facet type with the impl's specific applied (via
`GetConstantValueInSpecific()`) and then identifying that facet type
with the impl's deduced self.

Identify is a fairly expensive operation. It runs subst, trying to
replace `.Self` references. It walks named constraints. It collects
require declarations. We're looking at making it do _more_ in the future
too, including rewrite constraint resolution and collecting rewrite and
same-type constraints. For this reason we have a cache to make it cheap
on the second run, but it's still a very heavyweight operation to
involve in impl lookup, when all we want is to apply the impl's specific
to its target interface.

We almost have all the information we need to avoid the identification
step. We have the impl's specific after deduction. And we have the
SpecificInterface that the impl is targeting in the `Impl` struct. When
we form the specific for the impl itself, we resolve the declaration
block and form new constant values for all instructions in there, but
that does not cover the SpecificInterface that we're storing in the
`Impl` struct. So we add a new instruction to the impl's eval block,
which will be symbolic when the impl is generic and the target interface
depends on a generic parameter. And we store the `InstId` in the `Impl`
struct. This allows us to gets its constant value later with the impl's
specific applied. From that constant value we can then pull out the
SpecificInterface that the impl is targeting.
2026-07-30 19:59:10 +00:00

331 lines
18 KiB
Plaintext

// 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/destroy.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/interop/cpp/function/export/generic.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/interop/cpp/function/export/generic.carbon
// --- generic_type_impls_interface.carbon
library "[[@TEST_NAME]]";
import Cpp;
interface I {
fn Doit(self);
}
class A {
impl as I {
fn Doit(unused self) {}
}
}
class B {
impl as I {
fn Doit(unused self) {}
}
}
fn F[T: I](t: T) {
t.Doit();
}
inline Cpp '''
void G() {
Carbon::A a;
Carbon::B b;
Carbon::F(a);
Carbon::F(b);
}
''';
fn Run() {
Cpp.G();
}
// CHECK:STDOUT: ; ---
// CHECK:STDOUT: ; ModuleID = 'generic_type_impls_interface.carbon'
// CHECK:STDOUT: source_filename = "generic_type_impls_interface.carbon"
// CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
// CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
// CHECK:STDOUT:
// CHECK:STDOUT: %"class.Carbon::A" = type {}
// CHECK:STDOUT: %"class.Carbon::B" = type {}
// CHECK:STDOUT:
// CHECK:STDOUT: $_ZN6Carbon1AD2Ev = comdat any
// CHECK:STDOUT:
// CHECK:STDOUT: $_ZN6Carbon1BD2Ev = comdat any
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: mustprogress uwtable
// CHECK:STDOUT: define dso_local void @_Z1Gv() #0 personality ptr @__gxx_personality_v0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %a = alloca %"class.Carbon::A", align 1
// CHECK:STDOUT: %b = alloca %"class.Carbon::B", align 1
// CHECK:STDOUT: %agg.tmp = alloca %"class.Carbon::A", align 1
// CHECK:STDOUT: %exn.slot = alloca ptr, align 8
// CHECK:STDOUT: %ehselector.slot = alloca i32, align 4
// CHECK:STDOUT: %agg.tmp1 = alloca %"class.Carbon::B", align 1
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %a) #4
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %b) #4
// CHECK:STDOUT: invoke void @_ZN6CarbonL1FENS_1AE()
// CHECK:STDOUT: to label %invoke.cont unwind label %lpad
// CHECK:STDOUT:
// CHECK:STDOUT: invoke.cont: ; preds = %entry
// CHECK:STDOUT: call void @_ZN6Carbon1AD2Ev(ptr noundef nonnull align 1 %agg.tmp) #4
// CHECK:STDOUT: invoke void @_ZN6CarbonL1FENS_1BE()
// CHECK:STDOUT: to label %invoke.cont3 unwind label %lpad2
// CHECK:STDOUT:
// CHECK:STDOUT: invoke.cont3: ; preds = %invoke.cont
// CHECK:STDOUT: call void @_ZN6Carbon1BD2Ev(ptr noundef nonnull align 1 %agg.tmp1) #4
// CHECK:STDOUT: call void @_ZN6Carbon1BD2Ev(ptr noundef nonnull align 1 %b) #4
// CHECK:STDOUT: call void @llvm.lifetime.end.p0(ptr %b) #4
// CHECK:STDOUT: call void @_ZN6Carbon1AD2Ev(ptr noundef nonnull align 1 %a) #4
// CHECK:STDOUT: call void @llvm.lifetime.end.p0(ptr %a) #4
// CHECK:STDOUT: ret void
// CHECK:STDOUT:
// CHECK:STDOUT: lpad: ; preds = %entry
// CHECK:STDOUT: %0 = landingpad { ptr, i32 }
// CHECK:STDOUT: cleanup
// CHECK:STDOUT: %1 = extractvalue { ptr, i32 } %0, 0
// CHECK:STDOUT: store ptr %1, ptr %exn.slot, align 8
// CHECK:STDOUT: %2 = extractvalue { ptr, i32 } %0, 1
// CHECK:STDOUT: store i32 %2, ptr %ehselector.slot, align 4
// CHECK:STDOUT: call void @_ZN6Carbon1AD2Ev(ptr noundef nonnull align 1 %agg.tmp) #4
// CHECK:STDOUT: br label %ehcleanup
// CHECK:STDOUT:
// CHECK:STDOUT: lpad2: ; preds = %invoke.cont
// CHECK:STDOUT: %3 = landingpad { ptr, i32 }
// CHECK:STDOUT: cleanup
// CHECK:STDOUT: %4 = extractvalue { ptr, i32 } %3, 0
// CHECK:STDOUT: store ptr %4, ptr %exn.slot, align 8
// CHECK:STDOUT: %5 = extractvalue { ptr, i32 } %3, 1
// CHECK:STDOUT: store i32 %5, ptr %ehselector.slot, align 4
// CHECK:STDOUT: call void @_ZN6Carbon1BD2Ev(ptr noundef nonnull align 1 %agg.tmp1) #4
// CHECK:STDOUT: br label %ehcleanup
// CHECK:STDOUT:
// CHECK:STDOUT: ehcleanup: ; preds = %lpad2, %lpad
// CHECK:STDOUT: call void @_ZN6Carbon1BD2Ev(ptr noundef nonnull align 1 %b) #4
// CHECK:STDOUT: call void @llvm.lifetime.end.p0(ptr %b) #4
// CHECK:STDOUT: call void @_ZN6Carbon1AD2Ev(ptr noundef nonnull align 1 %a) #4
// CHECK:STDOUT: call void @llvm.lifetime.end.p0(ptr %a) #4
// CHECK:STDOUT: br label %eh.resume
// CHECK:STDOUT:
// CHECK:STDOUT: eh.resume: ; preds = %ehcleanup
// CHECK:STDOUT: %exn = load ptr, ptr %exn.slot, align 8
// CHECK:STDOUT: %sel = load i32, ptr %ehselector.slot, align 4
// CHECK:STDOUT: %lpad.val = insertvalue { ptr, i32 } poison, ptr %exn, 0
// CHECK:STDOUT: %lpad.val7 = insertvalue { ptr, i32 } %lpad.val, i32 %sel, 1
// CHECK:STDOUT: resume { ptr, i32 } %lpad.val7
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr %a, { 0, 2, 1, 3, 4 }
// CHECK:STDOUT: uselistorder ptr %b, { 0, 2, 1, 3, 4 }
// 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: alwaysinline mustprogress nounwind uwtable
// CHECK:STDOUT: define internal void @_ZN6CarbonL1FENS_1AE() #2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %0 = alloca %"class.Carbon::A", align 1
// CHECK:STDOUT: call void @_CF__carbon_thunkinst70000035.Main(ptr noundef nonnull align 1 %0)
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare i32 @__gxx_personality_v0(...)
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: inlinehint mustprogress nounwind uwtable
// CHECK:STDOUT: define linkonce_odr dso_local void @_ZN6Carbon1AD2Ev(ptr noundef nonnull align 1 %this) unnamed_addr #3 comdat align 2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %this.addr = alloca ptr, align 8
// CHECK:STDOUT: store ptr %this, ptr %this.addr, align 8, !tbaa !12
// CHECK:STDOUT: %this1 = load ptr, ptr %this.addr, align 8
// CHECK:STDOUT: call void @"_C__destroy_thunk:thunk.A.Main"(ptr noundef nonnull align 1 %this1)
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress nounwind uwtable
// CHECK:STDOUT: define internal void @_ZN6CarbonL1FENS_1BE() #2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %0 = alloca %"class.Carbon::B", align 1
// CHECK:STDOUT: call void @_CF__carbon_thunkinst70000052.Main(ptr noundef nonnull align 1 %0)
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: inlinehint mustprogress nounwind uwtable
// CHECK:STDOUT: define linkonce_odr dso_local void @_ZN6Carbon1BD2Ev(ptr noundef nonnull align 1 %this) unnamed_addr #3 comdat align 2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %this.addr = alloca ptr, align 8
// CHECK:STDOUT: store ptr %this, ptr %this.addr, align 8, !tbaa !15
// CHECK:STDOUT: %this1 = load ptr, ptr %this.addr, align 8
// CHECK:STDOUT: call void @"_C__destroy_thunk:thunk.B.Main"(ptr noundef nonnull align 1 %this1)
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.lifetime.end.p0(ptr captures(none)) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @"_CDoit.A.Main:I.Main"(ptr %self) #4 !dbg !17 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !23
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @"_CDoit.B.Main:I.Main"(ptr %self) #4 !dbg !24 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !27
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline nounwind
// CHECK:STDOUT: define weak_odr void @"_C__destroy_thunk:thunk.A.Main"(ptr %self) #5 !dbg !28 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @"_COp.68011419f123494e:core.Destroy.Core"(ptr %self), !dbg !31
// CHECK:STDOUT: ret void, !dbg !31
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.68011419f123494e:core.Destroy.Core"(ptr %self) #4 !dbg !32 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !35
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline nounwind
// CHECK:STDOUT: define weak_odr void @"_C__destroy_thunk:thunk.B.Main"(ptr %self) #5 !dbg !36 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @"_COp.6c3865e9cbd9f6de:core.Destroy.Core"(ptr %self), !dbg !39
// CHECK:STDOUT: ret void, !dbg !39
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.6c3865e9cbd9f6de:core.Destroy.Core"(ptr %self) #4 !dbg !40 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !43
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CF__carbon_thunkinst70000035.Main(ptr %_) #4 !dbg !44 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_CF.Main.3e1f7ed08cd9ee58(ptr %_), !dbg !47
// CHECK:STDOUT: ret void, !dbg !47
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CF__carbon_thunkinst70000052.Main(ptr %_) #4 !dbg !48 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_CF.Main.bd1b6d59f703c190(ptr %_), !dbg !51
// CHECK:STDOUT: ret void, !dbg !51
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define i32 @main() #4 !dbg !52 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_Z1Gv(), !dbg !56
// CHECK:STDOUT: ret i32 0, !dbg !57
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @_CF.Main.3e1f7ed08cd9ee58(ptr %t) #4 !dbg !58 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @"_CDoit.A.Main:I.Main"(ptr %t), !dbg !61
// CHECK:STDOUT: ret void, !dbg !62
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @_CF.Main.bd1b6d59f703c190(ptr %t) #4 !dbg !63 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @"_CDoit.B.Main:I.Main"(ptr %t), !dbg !66
// CHECK:STDOUT: ret void, !dbg !67
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 1, 0 }
// CHECK:STDOUT: uselistorder ptr @_ZN6Carbon1AD2Ev, { 0, 2, 1, 3 }
// CHECK:STDOUT: uselistorder ptr @_ZN6Carbon1BD2Ev, { 0, 2, 1, 3 }
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.end.p0, { 3, 1, 2, 0 }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT: attributes #2 = { alwaysinline mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #3 = { inlinehint mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #4 = { nounwind }
// CHECK:STDOUT: attributes #5 = { alwaysinline nounwind }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.dbg.cu = !{!0}
// CHECK:STDOUT: !llvm.module.flags = !{!2, !3, !4, !5, !6}
// CHECK:STDOUT: !llvm.errno.tbaa = !{!7}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !1 = !DIFile(filename: "generic_type_impls_interface.carbon", directory: "")
// CHECK:STDOUT: !2 = !{i32 8, !"PIC Level", i32 2}
// CHECK:STDOUT: !3 = !{i32 7, !"PIE Level", i32 2}
// CHECK:STDOUT: !4 = !{i32 7, !"uwtable", i32 2}
// CHECK:STDOUT: !5 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !6 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !7 = !{!8, !9, i64 0}
// CHECK:STDOUT: !8 = !{!"__libc_errno", !9, i64 0}
// CHECK:STDOUT: !9 = !{!"int", !10, i64 0}
// CHECK:STDOUT: !10 = !{!"omnipotent char", !11, i64 0}
// CHECK:STDOUT: !11 = !{!"Simple C++ TBAA"}
// CHECK:STDOUT: !12 = !{!13, !13, i64 0}
// CHECK:STDOUT: !13 = !{!"p1 _ZTSN6Carbon1AE", !14, i64 0}
// CHECK:STDOUT: !14 = !{!"any pointer", !10, i64 0}
// CHECK:STDOUT: !15 = !{!16, !16, i64 0}
// CHECK:STDOUT: !16 = !{!"p1 _ZTSN6Carbon1BE", !14, i64 0}
// CHECK:STDOUT: !17 = distinct !DISubprogram(name: "Doit", linkageName: "_CDoit.A.Main:I.Main", scope: null, file: !1, line: 10, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !21)
// CHECK:STDOUT: !18 = !DISubroutineType(types: !19)
// CHECK:STDOUT: !19 = !{null, !20}
// CHECK:STDOUT: !20 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
// CHECK:STDOUT: !21 = !{!22}
// CHECK:STDOUT: !22 = !DILocalVariable(arg: 1, scope: !17, type: !20)
// CHECK:STDOUT: !23 = !DILocation(line: 10, column: 5, scope: !17)
// CHECK:STDOUT: !24 = distinct !DISubprogram(name: "Doit", linkageName: "_CDoit.B.Main:I.Main", scope: null, file: !1, line: 15, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !25)
// CHECK:STDOUT: !25 = !{!26}
// CHECK:STDOUT: !26 = !DILocalVariable(arg: 1, scope: !24, type: !20)
// CHECK:STDOUT: !27 = !DILocation(line: 15, column: 5, scope: !24)
// CHECK:STDOUT: !28 = distinct !DISubprogram(name: "__destroy_thunk", linkageName: "_C__destroy_thunk:thunk.A.Main", scope: null, file: !1, line: 8, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !29)
// CHECK:STDOUT: !29 = !{!30}
// CHECK:STDOUT: !30 = !DILocalVariable(arg: 1, scope: !28, type: !20)
// CHECK:STDOUT: !31 = !DILocation(line: 8, column: 1, scope: !28)
// CHECK:STDOUT: !32 = distinct !DISubprogram(name: "Op", linkageName: "_COp.68011419f123494e:core.Destroy.Core", scope: null, file: !1, line: 8, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !33)
// CHECK:STDOUT: !33 = !{!34}
// CHECK:STDOUT: !34 = !DILocalVariable(arg: 1, scope: !32, type: !20)
// CHECK:STDOUT: !35 = !DILocation(line: 8, column: 1, scope: !32)
// CHECK:STDOUT: !36 = distinct !DISubprogram(name: "__destroy_thunk", linkageName: "_C__destroy_thunk:thunk.B.Main", scope: null, file: !1, line: 13, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !37)
// CHECK:STDOUT: !37 = !{!38}
// CHECK:STDOUT: !38 = !DILocalVariable(arg: 1, scope: !36, type: !20)
// CHECK:STDOUT: !39 = !DILocation(line: 13, column: 1, scope: !36)
// CHECK:STDOUT: !40 = distinct !DISubprogram(name: "Op", linkageName: "_COp.6c3865e9cbd9f6de:core.Destroy.Core", scope: null, file: !1, line: 13, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !41)
// CHECK:STDOUT: !41 = !{!42}
// CHECK:STDOUT: !42 = !DILocalVariable(arg: 1, scope: !40, type: !20)
// CHECK:STDOUT: !43 = !DILocation(line: 13, column: 1, scope: !40)
// CHECK:STDOUT: !44 = distinct !DISubprogram(name: "F__carbon_thunkinst70000035", linkageName: "_CF__carbon_thunkinst70000035.Main", scope: null, file: !1, line: 19, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !45)
// CHECK:STDOUT: !45 = !{!46}
// CHECK:STDOUT: !46 = !DILocalVariable(arg: 1, scope: !44, type: !20)
// CHECK:STDOUT: !47 = !DILocation(line: 19, column: 1, scope: !44)
// CHECK:STDOUT: !48 = distinct !DISubprogram(name: "F__carbon_thunkinst70000052", linkageName: "_CF__carbon_thunkinst70000052.Main", scope: null, file: !1, line: 19, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !49)
// CHECK:STDOUT: !49 = !{!50}
// CHECK:STDOUT: !50 = !DILocalVariable(arg: 1, scope: !48, type: !20)
// CHECK:STDOUT: !51 = !DILocation(line: 19, column: 1, scope: !48)
// CHECK:STDOUT: !52 = distinct !DISubprogram(name: "Run", linkageName: "main", scope: null, file: !1, line: 32, type: !53, spFlags: DISPFlagDefinition, unit: !0)
// CHECK:STDOUT: !53 = !DISubroutineType(types: !54)
// CHECK:STDOUT: !54 = !{!55}
// CHECK:STDOUT: !55 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
// CHECK:STDOUT: !56 = !DILocation(line: 33, column: 3, scope: !52)
// CHECK:STDOUT: !57 = !DILocation(line: 32, column: 1, scope: !52)
// CHECK:STDOUT: !58 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.3e1f7ed08cd9ee58", scope: null, file: !1, line: 19, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !59)
// CHECK:STDOUT: !59 = !{!60}
// CHECK:STDOUT: !60 = !DILocalVariable(arg: 1, scope: !58, type: !20)
// CHECK:STDOUT: !61 = !DILocation(line: 20, column: 3, scope: !58)
// CHECK:STDOUT: !62 = !DILocation(line: 19, column: 1, scope: !58)
// CHECK:STDOUT: !63 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.bd1b6d59f703c190", scope: null, file: !1, line: 19, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !64)
// CHECK:STDOUT: !64 = !{!65}
// CHECK:STDOUT: !65 = !DILocalVariable(arg: 1, scope: !63, type: !20)
// CHECK:STDOUT: !66 = !DILocation(line: 20, column: 3, scope: !63)
// CHECK:STDOUT: !67 = !DILocation(line: 19, column: 1, scope: !63)
// CHECK:STDOUT: