// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/interop/cpp/reverse/method.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/interop/cpp/reverse/method.carbon

// --- method.carbon
library "[[@TEST_NAME]]";

import Cpp;

class A {
  fn F[self: Self]() { self; }
}

inline Cpp '''
void CallF() {
  Carbon::A().F();
}
''';

// --- method_with_args_and_return.carbon
library "[[@TEST_NAME]]";

import Cpp;

class A {
  fn F[self: Self](a: i32) -> i32 {
    self;
    return a;
  }
}

inline Cpp '''
int CallF() {
  return Carbon::A().F(123);
}
''';

fn CallCallF() -> i32 { return Cpp.CallF(); }

// --- static.carbon
library "[[@TEST_NAME]]";

import Cpp;

class A {
  fn F() {}
}

inline Cpp '''
void CallF() {
  Carbon::A::F();
}
''';

fn CallCallF() { Cpp.CallF(); }

// CHECK:STDOUT: ; ModuleID = 'method.carbon'
// CHECK:STDOUT: source_filename = "method.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:
// CHECK:STDOUT: ; Function Attrs: mustprogress uwtable
// CHECK:STDOUT: define dso_local void @_Z5CallFv() #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %ref.tmp = alloca %"class.Carbon::A", align 1
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %ref.tmp) #3
// CHECK:STDOUT:   call void @_ZN6Carbon1A1FEv(ptr noundef nonnull align 1 dereferenceable(1) %ref.tmp)
// CHECK:STDOUT:   call void @llvm.lifetime.end.p0(ptr %ref.tmp) #3
// 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 @_ZN6Carbon1A1FEv(ptr noundef nonnull align 1 dereferenceable(1) %this) #2 align 2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %this.addr = alloca ptr, align 8
// CHECK:STDOUT:   store ptr %this, ptr %this.addr, align 8, !tbaa !11
// CHECK:STDOUT:   %this1 = load ptr, ptr %this.addr, align 8
// CHECK:STDOUT:   call void @_CF__carbon_thunk.A.Main(ptr noundef nonnull align 1 dereferenceable(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 @_CF.A.Main(ptr %self) #3 !dbg !14 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   ret void, !dbg !20
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CF__carbon_thunk.A.Main(ptr %self) #3 !dbg !21 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   call void @_CF.A.Main(ptr %self), !dbg !24
// CHECK:STDOUT:   ret void, !dbg !24
// CHECK:STDOUT: }
// 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 = { nounwind }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
// CHECK:STDOUT: !llvm.dbg.cu = !{!5}
// CHECK:STDOUT: !llvm.errno.tbaa = !{!7}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// 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 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !6 = !DIFile(filename: "method.carbon", directory: "")
// CHECK:STDOUT: !7 = !{!8, !8, i64 0}
// CHECK:STDOUT: !8 = !{!"int", !9, i64 0}
// CHECK:STDOUT: !9 = !{!"omnipotent char", !10, i64 0}
// CHECK:STDOUT: !10 = !{!"Simple C++ TBAA"}
// CHECK:STDOUT: !11 = !{!12, !12, i64 0}
// CHECK:STDOUT: !12 = !{!"p1 _ZTSN6Carbon1AE", !13, i64 0}
// CHECK:STDOUT: !13 = !{!"any pointer", !9, i64 0}
// CHECK:STDOUT: !14 = distinct !DISubprogram(name: "F", linkageName: "_CF.A.Main", scope: null, file: !6, line: 6, type: !15, spFlags: DISPFlagDefinition, unit: !5, retainedNodes: !18)
// CHECK:STDOUT: !15 = !DISubroutineType(types: !16)
// CHECK:STDOUT: !16 = !{null, !17}
// CHECK:STDOUT: !17 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
// CHECK:STDOUT: !18 = !{!19}
// CHECK:STDOUT: !19 = !DILocalVariable(arg: 1, scope: !14, type: !17)
// CHECK:STDOUT: !20 = !DILocation(line: 6, column: 3, scope: !14)
// CHECK:STDOUT: !21 = distinct !DISubprogram(name: "F__carbon_thunk", linkageName: "_CF__carbon_thunk.A.Main", scope: null, file: !6, line: 6, type: !15, spFlags: DISPFlagDefinition, unit: !5, retainedNodes: !22)
// CHECK:STDOUT: !22 = !{!23}
// CHECK:STDOUT: !23 = !DILocalVariable(arg: 1, scope: !21, type: !17)
// CHECK:STDOUT: !24 = !DILocation(line: 6, column: 3, scope: !21)
// CHECK:STDOUT: ; ModuleID = 'method_with_args_and_return.carbon'
// CHECK:STDOUT: source_filename = "method_with_args_and_return.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:
// CHECK:STDOUT: ; Function Attrs: mustprogress uwtable
// CHECK:STDOUT: define dso_local noundef i32 @_Z5CallFv() #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %ref.tmp = alloca %"class.Carbon::A", align 1
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %ref.tmp) #3
// CHECK:STDOUT:   %call = call noundef i32 @_ZN6Carbon1A1FEi(ptr noundef nonnull align 1 dereferenceable(1) %ref.tmp, i32 noundef 123)
// CHECK:STDOUT:   call void @llvm.lifetime.end.p0(ptr %ref.tmp) #3
// CHECK:STDOUT:   ret i32 %call
// 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 noundef i32 @_ZN6Carbon1A1FEi(ptr noundef nonnull align 1 dereferenceable(1) %this, i32 noundef %0) #2 align 2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %retval = alloca i32, align 4
// CHECK:STDOUT:   %this.addr = alloca ptr, align 8
// CHECK:STDOUT:   %.addr = alloca i32, align 4
// CHECK:STDOUT:   store ptr %this, ptr %this.addr, align 8, !tbaa !11
// CHECK:STDOUT:   store i32 %0, ptr %.addr, align 4, !tbaa !7
// CHECK:STDOUT:   %this1 = load ptr, ptr %this.addr, align 8
// CHECK:STDOUT:   call void @_CF__carbon_thunk.A.Main(ptr noundef nonnull align 1 dereferenceable(1) %this1, ptr noundef nonnull align 4 dereferenceable(4) %.addr, ptr noundef nonnull align 4 dereferenceable(4) %retval)
// CHECK:STDOUT:   %1 = load i32, ptr %retval, align 4
// CHECK:STDOUT:   ret i32 %1
// 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 i32 @_CF.A.Main(ptr %self, i32 %a) #3 !dbg !14 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   ret i32 %a, !dbg !22
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CF__carbon_thunk.A.Main(ptr %self, ptr %_, ptr %_1) #3 !dbg !23 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %.loc6_35.2 = load i32, ptr %_, align 4, !dbg !30
// CHECK:STDOUT:   %A.F.call = call i32 @_CF.A.Main(ptr %self, i32 %.loc6_35.2), !dbg !30
// CHECK:STDOUT:   store i32 %A.F.call, ptr %_1, align 4, !dbg !30
// CHECK:STDOUT:   ret void, !dbg !30
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define i32 @_CCallCallF.Main() #3 !dbg !31 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %CallF.call = call i32 @_Z5CallFv(), !dbg !34
// CHECK:STDOUT:   ret i32 %CallF.call, !dbg !35
// CHECK:STDOUT: }
// 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 = { nounwind }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
// CHECK:STDOUT: !llvm.dbg.cu = !{!5}
// CHECK:STDOUT: !llvm.errno.tbaa = !{!7}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// 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 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !6 = !DIFile(filename: "method_with_args_and_return.carbon", directory: "")
// CHECK:STDOUT: !7 = !{!8, !8, i64 0}
// CHECK:STDOUT: !8 = !{!"int", !9, i64 0}
// CHECK:STDOUT: !9 = !{!"omnipotent char", !10, i64 0}
// CHECK:STDOUT: !10 = !{!"Simple C++ TBAA"}
// CHECK:STDOUT: !11 = !{!12, !12, i64 0}
// CHECK:STDOUT: !12 = !{!"p1 _ZTSN6Carbon1AE", !13, i64 0}
// CHECK:STDOUT: !13 = !{!"any pointer", !9, i64 0}
// CHECK:STDOUT: !14 = distinct !DISubprogram(name: "F", linkageName: "_CF.A.Main", scope: null, file: !6, line: 6, type: !15, spFlags: DISPFlagDefinition, unit: !5, retainedNodes: !19)
// CHECK:STDOUT: !15 = !DISubroutineType(types: !16)
// CHECK:STDOUT: !16 = !{!17, !18, !17}
// CHECK:STDOUT: !17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
// CHECK:STDOUT: !18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
// CHECK:STDOUT: !19 = !{!20, !21}
// CHECK:STDOUT: !20 = !DILocalVariable(arg: 1, scope: !14, type: !18)
// CHECK:STDOUT: !21 = !DILocalVariable(arg: 2, scope: !14, type: !17)
// CHECK:STDOUT: !22 = !DILocation(line: 8, column: 5, scope: !14)
// CHECK:STDOUT: !23 = distinct !DISubprogram(name: "F__carbon_thunk", linkageName: "_CF__carbon_thunk.A.Main", scope: null, file: !6, line: 6, type: !24, spFlags: DISPFlagDefinition, unit: !5, retainedNodes: !26)
// CHECK:STDOUT: !24 = !DISubroutineType(types: !25)
// CHECK:STDOUT: !25 = !{null, !18, !17, !17}
// CHECK:STDOUT: !26 = !{!27, !28, !29}
// CHECK:STDOUT: !27 = !DILocalVariable(arg: 1, scope: !23, type: !18)
// CHECK:STDOUT: !28 = !DILocalVariable(arg: 2, scope: !23, type: !17)
// CHECK:STDOUT: !29 = !DILocalVariable(arg: 3, scope: !23, type: !17)
// CHECK:STDOUT: !30 = !DILocation(line: 6, column: 3, scope: !23)
// CHECK:STDOUT: !31 = distinct !DISubprogram(name: "CallCallF", linkageName: "_CCallCallF.Main", scope: null, file: !6, line: 18, type: !32, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !32 = !DISubroutineType(types: !33)
// CHECK:STDOUT: !33 = !{!17}
// CHECK:STDOUT: !34 = !DILocation(line: 18, column: 32, scope: !31)
// CHECK:STDOUT: !35 = !DILocation(line: 18, column: 25, scope: !31)
// CHECK:STDOUT: ; ModuleID = 'static.carbon'
// CHECK:STDOUT: source_filename = "static.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 uwtable
// CHECK:STDOUT: define dso_local void @_Z5CallFv() #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   call void @_ZN6Carbon1A1FEv()
// CHECK:STDOUT:   ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress nounwind uwtable
// CHECK:STDOUT: define internal void @_ZN6Carbon1A1FEv() #1 align 2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   call void @_CF__carbon_thunk.A.Main()
// CHECK:STDOUT:   ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CF.A.Main() #2 !dbg !11 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   ret void, !dbg !14
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CF__carbon_thunk.A.Main() #2 !dbg !15 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   call void @_CF.A.Main(), !dbg !16
// CHECK:STDOUT:   ret void, !dbg !16
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CCallCallF.Main() #2 !dbg !17 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   call void @_Z5CallFv(), !dbg !18
// CHECK:STDOUT:   ret void, !dbg !19
// CHECK:STDOUT: }
// 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 = { 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 #2 = { nounwind }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
// CHECK:STDOUT: !llvm.dbg.cu = !{!5}
// CHECK:STDOUT: !llvm.errno.tbaa = !{!7}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// 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 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !6 = !DIFile(filename: "static.carbon", directory: "")
// CHECK:STDOUT: !7 = !{!8, !8, i64 0}
// CHECK:STDOUT: !8 = !{!"int", !9, i64 0}
// CHECK:STDOUT: !9 = !{!"omnipotent char", !10, i64 0}
// CHECK:STDOUT: !10 = !{!"Simple C++ TBAA"}
// CHECK:STDOUT: !11 = distinct !DISubprogram(name: "F", linkageName: "_CF.A.Main", scope: null, file: !6, line: 6, type: !12, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !12 = !DISubroutineType(types: !13)
// CHECK:STDOUT: !13 = !{null}
// CHECK:STDOUT: !14 = !DILocation(line: 6, column: 3, scope: !11)
// CHECK:STDOUT: !15 = distinct !DISubprogram(name: "F__carbon_thunk", linkageName: "_CF__carbon_thunk.A.Main", scope: null, file: !6, line: 6, type: !12, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !16 = !DILocation(line: 6, column: 3, scope: !15)
// CHECK:STDOUT: !17 = distinct !DISubprogram(name: "CallCallF", linkageName: "_CCallCallF.Main", scope: null, file: !6, line: 15, type: !12, spFlags: DISPFlagDefinition, unit: !5)
// CHECK:STDOUT: !18 = !DILocation(line: 15, column: 18, scope: !17)
// CHECK:STDOUT: !19 = !DILocation(line: 15, column: 1, scope: !17)
