// 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/function/call/form.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/function/call/form.carbon

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

fn F(x:? form(ref i32));

fn G() {
  var y: i32 = 0;
  F(ref y);
}

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

fn F(x:? form(var i32));

fn G() {
  F(0);
}

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

fn F(x:? form(val i32));

fn G() {
  F(0);
}

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

fn F() ->? form(ref i32);

fn G() {
  let unused ref x: i32 = F();
}

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

fn F() ->? form(var i32);

fn G() {
  let unused var x: i32 = F();
}

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

fn F() ->? form(val i32);

fn G() {
  let unused x: i32 = F();
}

// CHECK:STDOUT: ; ModuleID = 'ref_form_param.carbon'
// CHECK:STDOUT: source_filename = "ref_form_param.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CF.Main(ptr)
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CG.Main() #0 !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %y.var = alloca i32, align 4, !dbg !7
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %y.var), !dbg !7
// CHECK:STDOUT:   store i32 0, ptr %y.var, align 4, !dbg !7
// CHECK:STDOUT:   call void @_CF.Main(ptr %y.var), !dbg !8
// CHECK:STDOUT:   ret void, !dbg !9
// 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: attributes #0 = { nounwind }
// CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// 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: "ref_form_param.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main", scope: null, file: !3, line: 5, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{null}
// CHECK:STDOUT: !7 = !DILocation(line: 6, column: 3, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 7, column: 3, scope: !4)
// CHECK:STDOUT: !9 = !DILocation(line: 5, column: 1, scope: !4)
// CHECK:STDOUT: ; ModuleID = 'var_form_param.carbon'
// CHECK:STDOUT: source_filename = "var_form_param.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CF.Main(ptr)
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CG.Main() #0 !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %.loc3_7.1.temp = alloca i32, align 4, !dbg !7
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc3_7.1.temp), !dbg !7
// CHECK:STDOUT:   store i32 0, ptr %.loc3_7.1.temp, align 4, !dbg !7
// CHECK:STDOUT:   call void @_CF.Main(ptr %.loc3_7.1.temp), !dbg !8
// CHECK:STDOUT:   ret void, !dbg !9
// 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: attributes #0 = { nounwind }
// CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// 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: "var_form_param.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main", scope: null, file: !3, line: 5, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{null}
// CHECK:STDOUT: !7 = !DILocation(line: 3, column: 6, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 6, column: 3, scope: !4)
// CHECK:STDOUT: !9 = !DILocation(line: 5, column: 1, scope: !4)
// CHECK:STDOUT: ; ModuleID = 'val_form_param.carbon'
// CHECK:STDOUT: source_filename = "val_form_param.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CF.Main(i32)
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CG.Main() #0 !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   call void @_CF.Main(i32 0), !dbg !7
// CHECK:STDOUT:   ret void, !dbg !8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { 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: "val_form_param.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main", scope: null, file: !3, line: 5, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{null}
// CHECK:STDOUT: !7 = !DILocation(line: 6, column: 3, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 5, column: 1, scope: !4)
// CHECK:STDOUT: ; ModuleID = 'ref_return_form.carbon'
// CHECK:STDOUT: source_filename = "ref_return_form.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: declare ptr @_CF.Main()
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CG.Main() #0 !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %F.call = call ptr @_CF.Main(), !dbg !7
// CHECK:STDOUT:   ret void, !dbg !8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { 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: "ref_return_form.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main", scope: null, file: !3, line: 5, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{null}
// CHECK:STDOUT: !7 = !DILocation(line: 6, column: 27, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 5, column: 1, scope: !4)
// CHECK:STDOUT: ; ModuleID = 'var_return_form.carbon'
// CHECK:STDOUT: source_filename = "var_return_form.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: declare i32 @_CF.Main()
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CG.Main() #0 !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %x.var = alloca i32, align 4, !dbg !7
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %x.var), !dbg !7
// CHECK:STDOUT:   %F.call = call i32 @_CF.Main(), !dbg !8
// CHECK:STDOUT:   store i32 %F.call, ptr %x.var, align 4, !dbg !7
// CHECK:STDOUT:   ret void, !dbg !9
// 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: attributes #0 = { nounwind }
// CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// 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: "var_return_form.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main", scope: null, file: !3, line: 5, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{null}
// CHECK:STDOUT: !7 = !DILocation(line: 6, column: 14, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 6, column: 27, scope: !4)
// CHECK:STDOUT: !9 = !DILocation(line: 5, column: 1, scope: !4)
// CHECK:STDOUT: ; ModuleID = 'val_return_form.carbon'
// CHECK:STDOUT: source_filename = "val_return_form.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: declare i32 @_CF.Main()
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CG.Main() #0 !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %F.call = call i32 @_CF.Main(), !dbg !7
// CHECK:STDOUT:   ret void, !dbg !8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { 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: "val_return_form.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main", scope: null, file: !3, line: 5, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{null}
// CHECK:STDOUT: !7 = !DILocation(line: 6, column: 23, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 5, column: 1, scope: !4)