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carbon-lang/toolchain/lower/testdata/interop/cpp/class/export/class.carbon
T
Richard Smith 34a2e270f4 Fix C++ code generation in --share-cpp-ast mode (#7605) 
Instead of creating a CodeGenerator per CppDomain, and then crashing in
lowering when we try to consume the same llvm Module multiple times,
create a CodeGenerator for each CppFile within the domain.

For now, we mulitplex all of Clang's ASTConsumer output to all code
generators, which means that any strong external definitions within a
Carbon file (for example, in an inline `Cpp` fragment) will be emitted
to all output files in the same `CppDomain`, resulting in link errors
due to symbol redefinitions. This will be addressed later. But this
should be sufficient for Carbon compilations in which such symbols are
not defined.

We also don't yet attempt to classify which compilations will need C++
code generation, and instead create a clang `CodeGenerator` for every
Carbon file that has C++ imports. For `carbom compile`, only one Carbon
file will need code generation, and yet we still build multiple
`CodeGenerator` objects in general. Fixing this requires more plumbing
from the driver, and this will also be handled in a follow-up.

Assisted-by: Gemini via Antigravity
2026-08-04 17:59:06 +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/int.carbon
// EXTRA-ARGS: --clang-arg=-fno-exceptions
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/interop/cpp/class/export/class.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/interop/cpp/class/export/class.carbon
// --- pointer.carbon
library "[[@TEST_NAME]]";
import Cpp;
class A {
var x: i32;
var y: i32;
}
inline Cpp '''
Carbon::A *pass(Carbon::A *p) { return p; }
void call() { pass(nullptr); }
''';
fn DoIt() { Cpp.call(); }
// --- layout.carbon
library "[[@TEST_NAME]]";
import Cpp;
base class A {
var x: i32*;
var y: i32;
}
class B {
var a: A;
var b: i32;
}
class C {
extend base: A;
var c: i32;
}
fn CallA(a: A*);
fn CallB(b: B*);
fn CallC(b: C*);
inline Cpp '''
void f() {
Carbon::A a;
Carbon::CallA(&a);
}
void g() {
Carbon::B b;
Carbon::CallB(&b);
}
void h() {
Carbon::C c;
Carbon::CallC(&c);
Carbon::CallA(&c);
}
''';
// --- field.carbon
library "[[@TEST_NAME]]";
import Cpp;
class C {
var a: i32;
var b: i32;
}
inline Cpp '''
void F(Carbon::C& c) {
c.a = 12;
c.b = 34;
}
''';
fn G() {
var c: C = {.a = 0, .b = 0};
Cpp.F(ref c);
}
// CHECK:STDOUT: ; ---
// CHECK:STDOUT: ; ModuleID = 'pointer.carbon'
// CHECK:STDOUT: source_filename = "pointer.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: ; Function Attrs: mustprogress nounwind uwtable
// CHECK:STDOUT: define dso_local noundef ptr @_Z4passPN6Carbon1AE(ptr noundef %p) #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %p.addr = alloca ptr, align 8
// CHECK:STDOUT: store ptr %p, ptr %p.addr, align 8, !tbaa !12
// CHECK:STDOUT: %0 = load ptr, ptr %p.addr, align 8, !tbaa !12
// CHECK:STDOUT: ret ptr %0
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: mustprogress nounwind uwtable
// CHECK:STDOUT: define dso_local void @_Z4callv() #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %call = call noundef ptr @_Z4passPN6Carbon1AE(ptr noundef null)
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CDoIt.Main() #1 !dbg !15 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_Z4callv(), !dbg !18
// CHECK:STDOUT: ret void, !dbg !19
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { 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 #1 = { 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: "pointer.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 = distinct !DISubprogram(name: "DoIt", linkageName: "_CDoIt.Main", scope: null, file: !1, line: 15, type: !16, spFlags: DISPFlagDefinition, unit: !0)
// CHECK:STDOUT: !16 = !DISubroutineType(types: !17)
// CHECK:STDOUT: !17 = !{null}
// CHECK:STDOUT: !18 = !DILocation(line: 15, column: 13, scope: !15)
// CHECK:STDOUT: !19 = !DILocation(line: 15, column: 1, scope: !15)
// CHECK:STDOUT:
// CHECK:STDOUT: ; ---
// CHECK:STDOUT: ; ModuleID = 'layout.carbon'
// CHECK:STDOUT: source_filename = "layout.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 <{ ptr, i32 }>
// CHECK:STDOUT: %"class.Carbon::B" = type { %"class.Carbon::A", i32 }
// CHECK:STDOUT: %"class.Carbon::C" = type { %"class.Carbon::A", i32 }
// CHECK:STDOUT:
// CHECK:STDOUT: $_ZN6Carbon1AD2Ev = comdat any
// CHECK:STDOUT:
// CHECK:STDOUT: $_ZN6Carbon1BD2Ev = comdat any
// CHECK:STDOUT:
// CHECK:STDOUT: $_ZN6Carbon1CD2Ev = comdat any
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: mustprogress nounwind uwtable
// CHECK:STDOUT: define dso_local void @_Z1fv() #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %a = alloca %"class.Carbon::A", align 8
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %a) #5
// CHECK:STDOUT: call void @_ZN6CarbonL5CallAEPNS_1AE(ptr noundef %a)
// CHECK:STDOUT: call void @_ZN6Carbon1AD2Ev(ptr noundef nonnull align 8 dead_on_return(12) dereferenceable(12) %a) #5
// CHECK:STDOUT: call void @llvm.lifetime.end.p0(ptr %a) #5
// 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.start.p0(ptr captures(none)) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress nounwind uwtable
// CHECK:STDOUT: define internal void @_ZN6CarbonL5CallAEPNS_1AE(ptr noundef %0) #2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.addr = alloca ptr, align 8
// CHECK:STDOUT: store ptr %0, ptr %.addr, align 8, !tbaa !12
// CHECK:STDOUT: call void @_CCallA__carbon_thunk.Main(ptr noundef nonnull align 8 dereferenceable(8) %.addr)
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: inlinehint mustprogress nounwind uwtable
// CHECK:STDOUT: define linkonce_odr dso_local void @_ZN6Carbon1AD2Ev(ptr noundef nonnull align 8 dead_on_return(12) dereferenceable(12) %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 8 dereferenceable(12) %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: mustprogress nounwind uwtable
// CHECK:STDOUT: define dso_local void @_Z1gv() #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %b = alloca %"class.Carbon::B", align 8
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %b) #5
// CHECK:STDOUT: call void @_ZN6CarbonL5CallBEPNS_1BE(ptr noundef %b)
// CHECK:STDOUT: call void @_ZN6Carbon1BD2Ev(ptr noundef nonnull align 8 dead_on_return(16) dereferenceable(16) %b) #5
// CHECK:STDOUT: call void @llvm.lifetime.end.p0(ptr %b) #5
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress nounwind uwtable
// CHECK:STDOUT: define internal void @_ZN6CarbonL5CallBEPNS_1BE(ptr noundef %0) #2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.addr = alloca ptr, align 8
// CHECK:STDOUT: store ptr %0, ptr %.addr, align 8, !tbaa !15
// CHECK:STDOUT: call void @_CCallB__carbon_thunk.Main(ptr noundef nonnull align 8 dereferenceable(8) %.addr)
// 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 8 dead_on_return(16) dereferenceable(16) %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 8 dereferenceable(16) %this1)
// CHECK:STDOUT: %a = getelementptr inbounds nuw %"class.Carbon::B", ptr %this1, i32 0, i32 0
// CHECK:STDOUT: call void @_ZN6Carbon1AD2Ev(ptr noundef nonnull align 8 dead_on_return(12) dereferenceable(12) %a) #5
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: mustprogress nounwind uwtable
// CHECK:STDOUT: define dso_local void @_Z1hv() #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %c = alloca %"class.Carbon::C", align 8
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %c) #5
// CHECK:STDOUT: call void @_ZN6CarbonL5CallCEPNS_1CE(ptr noundef %c)
// CHECK:STDOUT: call void @_ZN6CarbonL5CallAEPNS_1AE(ptr noundef %c)
// CHECK:STDOUT: call void @_ZN6Carbon1CD2Ev(ptr noundef nonnull align 8 dead_on_return(16) dereferenceable(16) %c) #5
// CHECK:STDOUT: call void @llvm.lifetime.end.p0(ptr %c) #5
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress nounwind uwtable
// CHECK:STDOUT: define internal void @_ZN6CarbonL5CallCEPNS_1CE(ptr noundef %0) #2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.addr = alloca ptr, align 8
// CHECK:STDOUT: store ptr %0, ptr %.addr, align 8, !tbaa !17
// CHECK:STDOUT: call void @_CCallC__carbon_thunk.Main(ptr noundef nonnull align 8 dereferenceable(8) %.addr)
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: inlinehint mustprogress nounwind uwtable
// CHECK:STDOUT: define linkonce_odr dso_local void @_ZN6Carbon1CD2Ev(ptr noundef nonnull align 8 dead_on_return(16) dereferenceable(16) %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 !17
// CHECK:STDOUT: %this1 = load ptr, ptr %this.addr, align 8
// CHECK:STDOUT: call void @"_C__destroy_thunk:thunk.C.Main"(ptr noundef nonnull align 8 dereferenceable(16) %this1)
// CHECK:STDOUT: call void @_ZN6Carbon1AD2Ev(ptr noundef nonnull align 8 dead_on_return(12) dereferenceable(12) %this1) #5
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CCallA.Main(ptr)
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CCallB.Main(ptr)
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CCallC.Main(ptr)
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline nounwind
// CHECK:STDOUT: define weak_odr void @"_C__destroy_thunk:thunk.A.Main"(ptr %self) #4 !dbg !19 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @"_COp.68011419f123494e:core.Destroy.Core"(ptr %self), !dbg !25
// CHECK:STDOUT: ret void, !dbg !25
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.5e27612b9dd31a14:core.Destroy.Core"(ptr %self) #5 !dbg !26 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !32
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.b0e8b846ec8794f3:core.Destroy.Core"(ptr %self) #5 !dbg !33 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !36
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.68011419f123494e:core.Destroy.Core"(ptr %self) #5 !dbg !37 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !40
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CCallA__carbon_thunk.Main(ptr %_) #5 !dbg !41 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc21 = load ptr, ptr %_, align 8, !dbg !44
// CHECK:STDOUT: call void @_CCallA.Main(ptr %.loc21), !dbg !44
// CHECK:STDOUT: ret void, !dbg !44
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline nounwind
// CHECK:STDOUT: define weak_odr void @"_C__destroy_thunk:thunk.B.Main"(ptr %self) #4 !dbg !45 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @"_COp.6c3865e9cbd9f6de:core.Destroy.Core"(ptr %self), !dbg !48
// CHECK:STDOUT: ret void, !dbg !48
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.470dcacdfb83e588:core.Destroy.Core"(ptr %self) #5 !dbg !49 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !52
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.6c3865e9cbd9f6de:core.Destroy.Core"(ptr %self) #5 !dbg !53 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !56
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CCallB__carbon_thunk.Main(ptr %_) #5 !dbg !57 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc22 = load ptr, ptr %_, align 8, !dbg !60
// CHECK:STDOUT: call void @_CCallB.Main(ptr %.loc22), !dbg !60
// CHECK:STDOUT: ret void, !dbg !60
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline nounwind
// CHECK:STDOUT: define weak_odr void @"_C__destroy_thunk:thunk.C.Main"(ptr %self) #4 !dbg !61 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @"_COp.807eb4f2d3ed7e54:core.Destroy.Core"(ptr %self), !dbg !64
// CHECK:STDOUT: ret void, !dbg !64
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.67ca81f926811f5a:core.Destroy.Core"(ptr %self) #5 !dbg !65 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !68
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.807eb4f2d3ed7e54:core.Destroy.Core"(ptr %self) #5 !dbg !69 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !72
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CCallC__carbon_thunk.Main(ptr %_) #5 !dbg !73 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc23 = load ptr, ptr %_, align 8, !dbg !76
// CHECK:STDOUT: call void @_CCallC.Main(ptr %.loc23), !dbg !76
// CHECK:STDOUT: ret void, !dbg !76
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @_ZN6Carbon1AD2Ev, { 2, 1, 0 }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { 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 #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 = { alwaysinline nounwind }
// CHECK:STDOUT: attributes #5 = { 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: "layout.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 = !{!18, !18, i64 0}
// CHECK:STDOUT: !18 = !{!"p1 _ZTSN6Carbon1CE", !14, i64 0}
// CHECK:STDOUT: !19 = distinct !DISubprogram(name: "__destroy_thunk", linkageName: "_C__destroy_thunk:thunk.A.Main", scope: null, file: !1, line: 6, type: !20, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !23)
// CHECK:STDOUT: !20 = !DISubroutineType(types: !21)
// CHECK:STDOUT: !21 = !{null, !22}
// CHECK:STDOUT: !22 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
// CHECK:STDOUT: !23 = !{!24}
// CHECK:STDOUT: !24 = !DILocalVariable(arg: 1, scope: !19, type: !22)
// CHECK:STDOUT: !25 = !DILocation(line: 6, column: 1, scope: !19)
// CHECK:STDOUT: !26 = distinct !DISubprogram(name: "Op", linkageName: "_COp.5e27612b9dd31a14:core.Destroy.Core", scope: null, file: !1, line: 6, type: !27, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !30)
// CHECK:STDOUT: !27 = !DISubroutineType(types: !28)
// CHECK:STDOUT: !28 = !{null, !29}
// CHECK:STDOUT: !29 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
// CHECK:STDOUT: !30 = !{!31}
// CHECK:STDOUT: !31 = !DILocalVariable(arg: 1, scope: !26, type: !29)
// CHECK:STDOUT: !32 = !DILocation(line: 6, column: 1, scope: !26)
// CHECK:STDOUT: !33 = distinct !DISubprogram(name: "Op", linkageName: "_COp.b0e8b846ec8794f3:core.Destroy.Core", scope: null, file: !1, line: 6, type: !20, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !34)
// CHECK:STDOUT: !34 = !{!35}
// CHECK:STDOUT: !35 = !DILocalVariable(arg: 1, scope: !33, type: !22)
// CHECK:STDOUT: !36 = !DILocation(line: 6, column: 1, scope: !33)
// CHECK:STDOUT: !37 = distinct !DISubprogram(name: "Op", linkageName: "_COp.68011419f123494e:core.Destroy.Core", scope: null, file: !1, line: 6, type: !20, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !38)
// CHECK:STDOUT: !38 = !{!39}
// CHECK:STDOUT: !39 = !DILocalVariable(arg: 1, scope: !37, type: !22)
// CHECK:STDOUT: !40 = !DILocation(line: 6, column: 1, scope: !37)
// CHECK:STDOUT: !41 = distinct !DISubprogram(name: "CallA__carbon_thunk", linkageName: "_CCallA__carbon_thunk.Main", scope: null, file: !1, line: 21, type: !20, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !42)
// CHECK:STDOUT: !42 = !{!43}
// CHECK:STDOUT: !43 = !DILocalVariable(arg: 1, scope: !41, type: !22)
// CHECK:STDOUT: !44 = !DILocation(line: 21, column: 1, scope: !41)
// CHECK:STDOUT: !45 = distinct !DISubprogram(name: "__destroy_thunk", linkageName: "_C__destroy_thunk:thunk.B.Main", scope: null, file: !1, line: 11, type: !20, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !46)
// CHECK:STDOUT: !46 = !{!47}
// CHECK:STDOUT: !47 = !DILocalVariable(arg: 1, scope: !45, type: !22)
// CHECK:STDOUT: !48 = !DILocation(line: 11, column: 1, scope: !45)
// CHECK:STDOUT: !49 = distinct !DISubprogram(name: "Op", linkageName: "_COp.470dcacdfb83e588:core.Destroy.Core", scope: null, file: !1, line: 11, type: !20, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !50)
// CHECK:STDOUT: !50 = !{!51}
// CHECK:STDOUT: !51 = !DILocalVariable(arg: 1, scope: !49, type: !22)
// CHECK:STDOUT: !52 = !DILocation(line: 11, column: 1, scope: !49)
// CHECK:STDOUT: !53 = distinct !DISubprogram(name: "Op", linkageName: "_COp.6c3865e9cbd9f6de:core.Destroy.Core", scope: null, file: !1, line: 11, type: !20, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !54)
// CHECK:STDOUT: !54 = !{!55}
// CHECK:STDOUT: !55 = !DILocalVariable(arg: 1, scope: !53, type: !22)
// CHECK:STDOUT: !56 = !DILocation(line: 11, column: 1, scope: !53)
// CHECK:STDOUT: !57 = distinct !DISubprogram(name: "CallB__carbon_thunk", linkageName: "_CCallB__carbon_thunk.Main", scope: null, file: !1, line: 22, type: !20, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !58)
// CHECK:STDOUT: !58 = !{!59}
// CHECK:STDOUT: !59 = !DILocalVariable(arg: 1, scope: !57, type: !22)
// CHECK:STDOUT: !60 = !DILocation(line: 22, column: 1, scope: !57)
// CHECK:STDOUT: !61 = distinct !DISubprogram(name: "__destroy_thunk", linkageName: "_C__destroy_thunk:thunk.C.Main", scope: null, file: !1, line: 16, type: !20, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !62)
// CHECK:STDOUT: !62 = !{!63}
// CHECK:STDOUT: !63 = !DILocalVariable(arg: 1, scope: !61, type: !22)
// CHECK:STDOUT: !64 = !DILocation(line: 16, column: 1, scope: !61)
// CHECK:STDOUT: !65 = distinct !DISubprogram(name: "Op", linkageName: "_COp.67ca81f926811f5a:core.Destroy.Core", scope: null, file: !1, line: 16, type: !20, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !66)
// CHECK:STDOUT: !66 = !{!67}
// CHECK:STDOUT: !67 = !DILocalVariable(arg: 1, scope: !65, type: !22)
// CHECK:STDOUT: !68 = !DILocation(line: 16, column: 1, scope: !65)
// CHECK:STDOUT: !69 = distinct !DISubprogram(name: "Op", linkageName: "_COp.807eb4f2d3ed7e54:core.Destroy.Core", scope: null, file: !1, line: 16, type: !20, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !70)
// CHECK:STDOUT: !70 = !{!71}
// CHECK:STDOUT: !71 = !DILocalVariable(arg: 1, scope: !69, type: !22)
// CHECK:STDOUT: !72 = !DILocation(line: 16, column: 1, scope: !69)
// CHECK:STDOUT: !73 = distinct !DISubprogram(name: "CallC__carbon_thunk", linkageName: "_CCallC__carbon_thunk.Main", scope: null, file: !1, line: 23, type: !20, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !74)
// CHECK:STDOUT: !74 = !{!75}
// CHECK:STDOUT: !75 = !DILocalVariable(arg: 1, scope: !73, type: !22)
// CHECK:STDOUT: !76 = !DILocation(line: 23, column: 1, scope: !73)
// CHECK:STDOUT:
// CHECK:STDOUT: ; ---
// CHECK:STDOUT: ; ModuleID = 'field.carbon'
// CHECK:STDOUT: source_filename = "field.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::C.0" = type { i32, i32 }
// CHECK:STDOUT:
// CHECK:STDOUT: @C.val.loc19_3 = internal constant { i32, i32 } zeroinitializer
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: mustprogress nounwind uwtable
// CHECK:STDOUT: define dso_local void @_Z1FRN6Carbon1CE(ptr noundef nonnull align 4 dereferenceable(8) %c) #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %c.addr = alloca ptr, align 8
// CHECK:STDOUT: store ptr %c, ptr %c.addr, align 8, !tbaa !12
// CHECK:STDOUT: %0 = load ptr, ptr %c.addr, align 8, !tbaa !12, !nonnull !15, !align !16
// CHECK:STDOUT: %a = getelementptr inbounds nuw %"class.Carbon::C.0", ptr %0, i32 0, i32 0
// CHECK:STDOUT: store i32 12, ptr %a, align 4, !tbaa !17
// CHECK:STDOUT: %1 = load ptr, ptr %c.addr, align 8, !tbaa !12, !nonnull !15, !align !16
// CHECK:STDOUT: %b = getelementptr inbounds nuw %"class.Carbon::C.0", ptr %1, i32 0, i32 1
// CHECK:STDOUT: store i32 34, ptr %b, align 4, !tbaa !19
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline nounwind
// CHECK:STDOUT: define weak_odr void @"_C__destroy_thunk:thunk.C.Main"(ptr %self) #1 !dbg !20 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @"_COp.807eb4f2d3ed7e54:core.Destroy.Core"(ptr %self), !dbg !26
// CHECK:STDOUT: ret void, !dbg !26
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.5e27612b9dd31a14:core.Destroy.Core"(ptr %self) #2 !dbg !27 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !33
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.f30036b66b652106:core.Destroy.Core"(ptr %self) #2 !dbg !34 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !37
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.807eb4f2d3ed7e54:core.Destroy.Core"(ptr %self) #2 !dbg !38 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !41
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CG.Main() #2 !dbg !42 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %c.var = alloca { i32, i32 }, align 4, !dbg !45
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %c.var), !dbg !45
// CHECK:STDOUT: %.loc19_29.3.a = getelementptr inbounds nuw { i32, i32 }, ptr %c.var, i32 0, i32 0, !dbg !46
// CHECK:STDOUT: %.loc19_29.6.b = getelementptr inbounds nuw { i32, i32 }, ptr %c.var, i32 0, i32 1, !dbg !46
// CHECK:STDOUT: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %c.var, ptr align 4 @C.val.loc19_3, i64 8, i1 false), !dbg !45
// CHECK:STDOUT: call void @_Z1FRN6Carbon1CE(ptr %c.var), !dbg !47
// CHECK:STDOUT: call void @"_COp.807eb4f2d3ed7e54:core.Destroy.Core"(ptr %c.var), !dbg !45
// CHECK:STDOUT: ret void, !dbg !48
// 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)) #3
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync 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) #3
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { 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 #1 = { alwaysinline nounwind }
// CHECK:STDOUT: attributes #2 = { nounwind }
// CHECK:STDOUT: attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// 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: "field.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 _ZTSN6Carbon1CE", !14, i64 0}
// CHECK:STDOUT: !14 = !{!"any pointer", !10, i64 0}
// CHECK:STDOUT: !15 = !{}
// CHECK:STDOUT: !16 = !{i64 4}
// CHECK:STDOUT: !17 = !{!18, !9, i64 0}
// CHECK:STDOUT: !18 = !{!"_ZTSN6Carbon1CE", !9, i64 0, !9, i64 4}
// CHECK:STDOUT: !19 = !{!18, !9, i64 4}
// CHECK:STDOUT: !20 = distinct !DISubprogram(name: "__destroy_thunk", linkageName: "_C__destroy_thunk:thunk.C.Main", scope: null, file: !1, line: 6, type: !21, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !24)
// CHECK:STDOUT: !21 = !DISubroutineType(types: !22)
// CHECK:STDOUT: !22 = !{null, !23}
// CHECK:STDOUT: !23 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
// CHECK:STDOUT: !24 = !{!25}
// CHECK:STDOUT: !25 = !DILocalVariable(arg: 1, scope: !20, type: !23)
// CHECK:STDOUT: !26 = !DILocation(line: 6, column: 1, scope: !20)
// CHECK:STDOUT: !27 = distinct !DISubprogram(name: "Op", linkageName: "_COp.5e27612b9dd31a14:core.Destroy.Core", scope: null, file: !1, line: 6, type: !28, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !31)
// CHECK:STDOUT: !28 = !DISubroutineType(types: !29)
// CHECK:STDOUT: !29 = !{null, !30}
// CHECK:STDOUT: !30 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
// CHECK:STDOUT: !31 = !{!32}
// CHECK:STDOUT: !32 = !DILocalVariable(arg: 1, scope: !27, type: !30)
// CHECK:STDOUT: !33 = !DILocation(line: 6, column: 1, scope: !27)
// CHECK:STDOUT: !34 = distinct !DISubprogram(name: "Op", linkageName: "_COp.f30036b66b652106:core.Destroy.Core", scope: null, file: !1, line: 6, type: !21, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !35)
// CHECK:STDOUT: !35 = !{!36}
// CHECK:STDOUT: !36 = !DILocalVariable(arg: 1, scope: !34, type: !23)
// CHECK:STDOUT: !37 = !DILocation(line: 6, column: 1, scope: !34)
// CHECK:STDOUT: !38 = distinct !DISubprogram(name: "Op", linkageName: "_COp.807eb4f2d3ed7e54:core.Destroy.Core", scope: null, file: !1, line: 6, type: !21, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !39)
// CHECK:STDOUT: !39 = !{!40}
// CHECK:STDOUT: !40 = !DILocalVariable(arg: 1, scope: !38, type: !23)
// CHECK:STDOUT: !41 = !DILocation(line: 6, column: 1, scope: !38)
// CHECK:STDOUT: !42 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main", scope: null, file: !1, line: 18, type: !43, spFlags: DISPFlagDefinition, unit: !0)
// CHECK:STDOUT: !43 = !DISubroutineType(types: !44)
// CHECK:STDOUT: !44 = !{null}
// CHECK:STDOUT: !45 = !DILocation(line: 19, column: 3, scope: !42)
// CHECK:STDOUT: !46 = !DILocation(line: 19, column: 14, scope: !42)
// CHECK:STDOUT: !47 = !DILocation(line: 20, column: 3, scope: !42)
// CHECK:STDOUT: !48 = !DILocation(line: 18, column: 1, scope: !42)
// CHECK:STDOUT:
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