carbon-lang/toolchain/lower/testdata/interop/cpp/function_decl.carbon

// 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
//
// 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_decl.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/interop/cpp/function_decl.carbon

// ============================================================================
// function_decl
// ============================================================================

// --- function_decl.h

void foo();

// --- import_function_decl.carbon

library "[[@TEST_NAME]]";

import Cpp library "function_decl.h";

fn MyF() {
  Cpp.foo();
}

// ============================================================================
// inline_function_decl
// ============================================================================

// --- inline_function_decl.h

inline void foo() {}

// --- todo_import_inline_function_decl.carbon

library "[[@TEST_NAME]]";

import Cpp library "inline_function_decl.h";

fn MyF() {
  // TODO: This should generate the definition of the inline function `foo()`.
  Cpp.foo();
}

// CHECK:STDOUT: ; ModuleID = 'import_function_decl.carbon'
// CHECK:STDOUT: source_filename = "import_function_decl.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: define void @_CMyF.Main() !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   call void @_Z3foov(), !dbg !7
// CHECK:STDOUT:   ret void, !dbg !8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_Z3foov()
// 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, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !3 = !DIFile(filename: "import_function_decl.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "MyF", linkageName: "_CMyF.Main", scope: null, file: !3, line: 6, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{}
// CHECK:STDOUT: !7 = !DILocation(line: 7, column: 3, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 6, column: 1, scope: !4)
// CHECK:STDOUT: ; ModuleID = 'todo_import_inline_function_decl.carbon'
// CHECK:STDOUT: source_filename = "todo_import_inline_function_decl.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: define void @_CMyF.Main() !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   call void @_Z3foov(), !dbg !7
// CHECK:STDOUT:   ret void, !dbg !8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_Z3foov()
// 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, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !3 = !DIFile(filename: "todo_import_inline_function_decl.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "MyF", linkageName: "_CMyF.Main", scope: null, file: !3, line: 6, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{}
// CHECK:STDOUT: !7 = !DILocation(line: 8, column: 3, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 6, column: 1, scope: !4)