1 ; RUN: llc -mtriple=x86_64-apple-macosx10.8.0 -O0 -filetype=obj -o %t %s 2 ; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s 3 ; Test that we generate debug info for by-value struct args that are not used. 4 ; 5 ; CHECK: DW_TAG_formal_parameter 6 ; CHECK: DW_TAG_formal_parameter 7 ; CHECK: DW_TAG_formal_parameter 8 ; CHECK: DW_TAG_formal_parameter 9 ; CHECK-NOT: DW_TAG 10 ; CHECK: DW_AT_name {{.*}} "info" 11 ; 12 ; generated from 13 ; 14 ; typedef unsigned long NSUInteger; 15 ; typedef struct 16 ; { 17 ; NSUInteger width; 18 ; NSUInteger height; 19 ; double pixelAspect; 20 ; } ImageInfo; 21 ; @implementation Bitmap 22 ; - (id)initWithCopy:(Bitmap *)otherBitmap 23 ; andInfo:(ImageInfo)info 24 ; andLength:(NSUInteger)length 25 ; { 26 ; } 27 ; @end 28 29 ; ModuleID = 't.mm' 30 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 31 target triple = "x86_64-apple-macosx10.8.0" 32 33 %0 = type opaque 34 %struct._objc_cache = type opaque 35 %struct._class_t = type { %struct._class_t*, %struct._class_t*, %struct._objc_cache*, i8* (i8*, i8*)**, %struct._class_ro_t* } 36 %struct._class_ro_t = type { i32, i32, i32, i8*, i8*, %struct.__method_list_t*, %struct._objc_protocol_list*, %struct._ivar_list_t*, i8*, %struct._prop_list_t* } 37 %struct.__method_list_t = type { i32, i32, [0 x %struct._objc_method] } 38 %struct._objc_method = type { i8*, i8*, i8* } 39 %struct._objc_protocol_list = type { i64, [0 x %struct._protocol_t*] } 40 %struct._protocol_t = type { i8*, i8*, %struct._objc_protocol_list*, %struct.__method_list_t*, %struct.__method_list_t*, %struct.__method_list_t*, %struct.__method_list_t*, %struct._prop_list_t*, i32, i32, i8** } 41 %struct._prop_list_t = type { i32, i32, [0 x %struct._prop_t] } 42 %struct._prop_t = type { i8*, i8* } 43 %struct._ivar_list_t = type { i32, i32, [0 x %struct._ivar_t] } 44 %struct._ivar_t = type { i64*, i8*, i8*, i32, i32 } 45 %struct.ImageInfo = type { i64, i64, double } 46 47 @_objc_empty_cache = external global %struct._objc_cache 48 @_objc_empty_vtable = external global i8* (i8*, i8*)* 49 @"OBJC_CLASS_$_Bitmap" = global %struct._class_t { %struct._class_t* @"OBJC_METACLASS_$_Bitmap", %struct._class_t* null, %struct._objc_cache* @_objc_empty_cache, i8* (i8*, i8*)** @_objc_empty_vtable, %struct._class_ro_t* @"\01l_OBJC_CLASS_RO_$_Bitmap" }, section "__DATA, __objc_data", align 8 50 @"OBJC_METACLASS_$_Bitmap" = global %struct._class_t { %struct._class_t* @"OBJC_METACLASS_$_Bitmap", %struct._class_t* @"OBJC_CLASS_$_Bitmap", %struct._objc_cache* @_objc_empty_cache, i8* (i8*, i8*)** @_objc_empty_vtable, %struct._class_ro_t* @"\01l_OBJC_METACLASS_RO_$_Bitmap" }, section "__DATA, __objc_data", align 8 51 @"\01L_OBJC_CLASS_NAME_" = internal global [7 x i8] c"Bitmap\00", section "__TEXT,__objc_classname,cstring_literals", align 1 52 @"\01l_OBJC_METACLASS_RO_$_Bitmap" = internal global %struct._class_ro_t { i32 3, i32 40, i32 40, i8* null, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @"\01L_OBJC_CLASS_NAME_", i32 0, i32 0), %struct.__method_list_t* null, %struct._objc_protocol_list* null, %struct._ivar_list_t* null, i8* null, %struct._prop_list_t* null }, section "__DATA, __objc_const", align 8 53 @"\01L_OBJC_METH_VAR_NAME_" = internal global [32 x i8] c"initWithCopy:andInfo:andLength:\00", section "__TEXT,__objc_methname,cstring_literals", align 1 54 @"\01L_OBJC_METH_VAR_TYPE_" = internal global [23 x i8] c"@56@0:8@16{?=QQd}24Q48\00", section "__TEXT,__objc_methtype,cstring_literals", align 1 55 @"\01l_OBJC_$_INSTANCE_METHODS_Bitmap" = internal global { i32, i32, [1 x %struct._objc_method] } { i32 24, i32 1, [1 x %struct._objc_method] [%struct._objc_method { i8* getelementptr inbounds ([32 x i8], [32 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i32 0, i32 0), i8* getelementptr inbounds ([23 x i8], [23 x i8]* @"\01L_OBJC_METH_VAR_TYPE_", i32 0, i32 0), i8* bitcast (i8* (%0*, i8*, %0*, %struct.ImageInfo*, i64)* @"\01-[Bitmap initWithCopy:andInfo:andLength:]" to i8*) }] }, section "__DATA, __objc_const", align 8 56 @"\01l_OBJC_CLASS_RO_$_Bitmap" = internal global %struct._class_ro_t { i32 2, i32 0, i32 0, i8* null, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @"\01L_OBJC_CLASS_NAME_", i32 0, i32 0), %struct.__method_list_t* bitcast ({ i32, i32, [1 x %struct._objc_method] }* @"\01l_OBJC_$_INSTANCE_METHODS_Bitmap" to %struct.__method_list_t*), %struct._objc_protocol_list* null, %struct._ivar_list_t* null, i8* null, %struct._prop_list_t* null }, section "__DATA, __objc_const", align 8 57 @"\01L_OBJC_LABEL_CLASS_$" = internal global [1 x i8*] [i8* bitcast (%struct._class_t* @"OBJC_CLASS_$_Bitmap" to i8*)], section "__DATA, __objc_classlist, regular, no_dead_strip", align 8 58 @llvm.used = appending global [5 x i8*] [i8* getelementptr inbounds ([7 x i8], [7 x i8]* @"\01L_OBJC_CLASS_NAME_", i32 0, i32 0), i8* getelementptr inbounds ([32 x i8], [32 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i32 0, i32 0), i8* getelementptr inbounds ([23 x i8], [23 x i8]* @"\01L_OBJC_METH_VAR_TYPE_", i32 0, i32 0), i8* bitcast ({ i32, i32, [1 x %struct._objc_method] }* @"\01l_OBJC_$_INSTANCE_METHODS_Bitmap" to i8*), i8* bitcast ([1 x i8*]* @"\01L_OBJC_LABEL_CLASS_$" to i8*)], section "llvm.metadata" 59 60 ; Function Attrs: ssp uwtable 61 define internal i8* @"\01-[Bitmap initWithCopy:andInfo:andLength:]"(%0* %self, i8* %_cmd, %0* %otherBitmap, %struct.ImageInfo* byval align 8 %info, i64 %length) #0 !dbg !7 { 62 entry: 63 %retval = alloca i8*, align 8 64 %self.addr = alloca %0*, align 8 65 %_cmd.addr = alloca i8*, align 8 66 %otherBitmap.addr = alloca %0*, align 8 67 %length.addr = alloca i64, align 8 68 store %0* %self, %0** %self.addr, align 8 69 call void @llvm.dbg.declare(metadata %0** %self.addr, metadata !28, metadata !DIExpression()), !dbg !29 70 store i8* %_cmd, i8** %_cmd.addr, align 8 71 call void @llvm.dbg.declare(metadata i8** %_cmd.addr, metadata !30, metadata !DIExpression()), !dbg !29 72 store %0* %otherBitmap, %0** %otherBitmap.addr, align 8 73 call void @llvm.dbg.declare(metadata %0** %otherBitmap.addr, metadata !32, metadata !DIExpression()), !dbg !29 74 call void @llvm.dbg.declare(metadata %struct.ImageInfo* %info, metadata !33, metadata !DIExpression()), !dbg !34 75 store i64 %length, i64* %length.addr, align 8 76 call void @llvm.dbg.declare(metadata i64* %length.addr, metadata !35, metadata !DIExpression()), !dbg !36 77 %0 = load i8*, i8** %retval, !dbg !37 78 ret i8* %0, !dbg !37 79 } 80 81 ; Function Attrs: nounwind readnone 82 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 83 84 attributes #0 = { ssp uwtable } 85 attributes #1 = { nounwind readnone } 86 87 !llvm.dbg.cu = !{!0} 88 !llvm.module.flags = !{!24, !25, !26, !27, !38} 89 90 !0 = distinct !DICompileUnit(language: DW_LANG_ObjC_plus_plus, producer: "clang version 3.4 ", isOptimized: false, runtimeVersion: 2, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2) 91 !1 = !DIFile(filename: "t.mm", directory: "") 92 !2 = !{} 93 !3 = !{!4} 94 !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "Bitmap", line: 8, size: 8, align: 8, flags: DIFlagObjcClassComplete, runtimeLang: DW_LANG_ObjC_plus_plus, file: !1, scope: !5, elements: !2) 95 !5 = !DIFile(filename: "t.mm", directory: "") 96 !7 = distinct !DISubprogram(name: "-[Bitmap initWithCopy:andInfo:andLength:]", line: 9, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 9, file: !1, scope: !5, type: !8, variables: !2) 97 !8 = !DISubroutineType(types: !9) 98 !9 = !{!4, !10, !11, !14, !15, !19} 99 !10 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !4) 100 !11 = !DIDerivedType(tag: DW_TAG_typedef, name: "SEL", line: 9, flags: DIFlagArtificial, file: !1, baseType: !12) 101 !12 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !13) 102 !13 = !DICompositeType(tag: DW_TAG_structure_type, name: "objc_selector", flags: DIFlagFwdDecl, file: !1) 103 !14 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !4) 104 !15 = !DIDerivedType(tag: DW_TAG_typedef, name: "ImageInfo", line: 7, file: !1, baseType: !16) 105 !16 = !DICompositeType(tag: DW_TAG_structure_type, line: 2, size: 192, align: 64, file: !1, elements: !17) 106 !17 = !{!18, !21, !22} 107 !18 = !DIDerivedType(tag: DW_TAG_member, name: "width", line: 4, size: 64, align: 64, file: !1, scope: !16, baseType: !19) 108 !19 = !DIDerivedType(tag: DW_TAG_typedef, name: "NSUInteger", line: 1, file: !1, baseType: !20) 109 !20 = !DIBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned) 110 !21 = !DIDerivedType(tag: DW_TAG_member, name: "height", line: 5, size: 64, align: 64, offset: 64, file: !1, scope: !16, baseType: !19) 111 !22 = !DIDerivedType(tag: DW_TAG_member, name: "pixelAspect", line: 6, size: 64, align: 64, offset: 128, file: !1, scope: !16, baseType: !23) 112 !23 = !DIBasicType(tag: DW_TAG_base_type, name: "double", size: 64, align: 64, encoding: DW_ATE_float) 113 !24 = !{i32 1, !"Objective-C Version", i32 2} 114 !25 = !{i32 1, !"Objective-C Image Info Version", i32 0} 115 !26 = !{i32 1, !"Objective-C Image Info Section", !"__DATA, __objc_imageinfo, regular, no_dead_strip"} 116 !27 = !{i32 4, !"Objective-C Garbage Collection", i32 0} 117 !28 = !DILocalVariable(name: "self", line: 9, arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !7, file: !5, type: !14) 118 !29 = !DILocation(line: 9, scope: !7) 119 !30 = !DILocalVariable(name: "_cmd", line: 9, arg: 2, flags: DIFlagArtificial, scope: !7, file: !5, type: !31) 120 !31 = !DIDerivedType(tag: DW_TAG_typedef, name: "SEL", line: 9, file: !1, baseType: !12) 121 !32 = !DILocalVariable(name: "otherBitmap", line: 9, arg: 3, scope: !7, file: !5, type: !14) 122 !33 = !DILocalVariable(name: "info", line: 10, arg: 4, scope: !7, file: !5, type: !15) 123 !34 = !DILocation(line: 10, scope: !7) 124 !35 = !DILocalVariable(name: "length", line: 11, arg: 5, scope: !7, file: !5, type: !19) 125 !36 = !DILocation(line: 11, scope: !7) 126 !37 = !DILocation(line: 13, scope: !7) 127 !38 = !{i32 1, !"Debug Info Version", i32 3} 128
