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

fn DoNothing(ref _: i32) {}

fn Main() {
  var a: i32 = 0;
  DoNothing(ref a);
}

// CHECK:STDOUT: ; ---
// CHECK:STDOUT: ; ModuleID = 'ref_param.carbon'
// CHECK:STDOUT: source_filename = "ref_param.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CDoNothing.Main(ptr %_) #0 !dbg !25 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   ret void, !dbg !28
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CMain.Main() #0 !dbg !30 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   %a.var = alloca i32, align 4, !dbg !31
// CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %a.var), !dbg !31
// CHECK:STDOUT:   store i32 0, ptr %a.var, align 4, !dbg !31
// CHECK:STDOUT:   call void @_CDoNothing.Main(ptr %a.var), !dbg !35
// CHECK:STDOUT:   call void @"_COp.f58524831c37807e:core.Destroy.Core"(ptr %a.var), !dbg !31
// CHECK:STDOUT:   ret void, !dbg !36
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.f58524831c37807e:core.Destroy.Core"(ptr %self) #0 !dbg !37 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT:   ret void, !dbg !39
// 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.dbg.cu = !{!19}
// CHECK:STDOUT: !llvm.module.flags = !{!2, !3}
// CHECK:STDOUT:
// CHECK:STDOUT: !2 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !3 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !18 = !DIFile(filename: "ref_param.carbon", directory: "")
// CHECK:STDOUT: !19 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !18, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !20 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
// CHECK:STDOUT: !21 = !{null, !20}
// CHECK:STDOUT: !22 = !DISubroutineType(types: !21)
// CHECK:STDOUT: !23 = !{null}
// CHECK:STDOUT: !24 = !DISubroutineType(types: !23)
// CHECK:STDOUT: !25 = distinct !DISubprogram(name: "DoNothing", linkageName: "_CDoNothing.Main", scope: null, file: !18, line: 13, type: !22, spFlags: DISPFlagDefinition, unit: !19, retainedNodes: !29)
// CHECK:STDOUT: !26 = !DILocalVariable(arg: 1, scope: !25, type: !20)
// CHECK:STDOUT: !28 = !DILocation(line: 13, column: 1, scope: !25)
// CHECK:STDOUT: !29 = !{!26}
// CHECK:STDOUT: !30 = distinct !DISubprogram(name: "Main", linkageName: "_CMain.Main", scope: null, file: !18, line: 15, type: !24, spFlags: DISPFlagDefinition, unit: !19)
// CHECK:STDOUT: !31 = !DILocation(line: 16, column: 3, scope: !30)
// CHECK:STDOUT: !35 = !DILocation(line: 17, column: 3, scope: !30)
// CHECK:STDOUT: !36 = !DILocation(line: 15, column: 1, scope: !30)
// CHECK:STDOUT: !37 = distinct !DISubprogram(name: "Op", linkageName: "_COp.f58524831c37807e:core.Destroy.Core", scope: null, file: !18, line: 16, type: !22, spFlags: DISPFlagDefinition, unit: !19, retainedNodes: !40)
// CHECK:STDOUT: !38 = !DILocalVariable(arg: 1, scope: !37, type: !20)
// CHECK:STDOUT: !39 = !DILocation(line: 16, column: 3, scope: !37)
// CHECK:STDOUT: !40 = !{!38}
// CHECK:STDOUT: