; RUN: llc -mtriple=x86_64-apple-macosx10.8.0 -O0 -filetype=obj -o %t %s ; RUN: llvm-dwarfdump -v -debug-info %t | FileCheck %s ; RUN: llc --try-experimental-debuginfo-iterators -mtriple=x86_64-apple-macosx10.8.0 -O0 -filetype=obj -o %t %s ; RUN: llvm-dwarfdump -v -debug-info %t | FileCheck %s ; Test that we generate debug info for by-value struct args that are not used. ; ; CHECK: DW_TAG_formal_parameter ; CHECK: DW_TAG_formal_parameter ; CHECK: DW_TAG_formal_parameter ; CHECK: DW_TAG_formal_parameter ; CHECK-NOT: DW_TAG ; CHECK: DW_AT_name {{.*}} "info" ; ; generated from ; ; typedef unsigned long NSUInteger; ; typedef struct ; { ; NSUInteger width; ; NSUInteger height; ; double pixelAspect; ; } ImageInfo; ; @implementation Bitmap ; - (id)initWithCopy:(Bitmap *)otherBitmap ; andInfo:(ImageInfo)info ; andLength:(NSUInteger)length ; { ; } ; @end ; ModuleID = 't.mm' 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" target triple = "x86_64-apple-macosx10.8.0" %0 = type opaque %struct._objc_cache = type opaque %struct._class_t = type { ptr, ptr, ptr, ptr, ptr } %struct._class_ro_t = type { i32, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr } %struct.__method_list_t = type { i32, i32, [0 x %struct._objc_method] } %struct._objc_method = type { ptr, ptr, ptr } %struct._objc_protocol_list = type { i64, [0 x ptr] } %struct._protocol_t = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i32, i32, ptr } %struct._prop_list_t = type { i32, i32, [0 x %struct._prop_t] } %struct._prop_t = type { ptr, ptr } %struct._ivar_list_t = type { i32, i32, [0 x %struct._ivar_t] } %struct._ivar_t = type { ptr, ptr, ptr, i32, i32 } %struct.ImageInfo = type { i64, i64, double } @_objc_empty_cache = external global %struct._objc_cache @_objc_empty_vtable = external global ptr @"OBJC_CLASS_$_Bitmap" = global %struct._class_t { ptr @"OBJC_METACLASS_$_Bitmap", ptr null, ptr @_objc_empty_cache, ptr @_objc_empty_vtable, ptr @"\01l_OBJC_CLASS_RO_$_Bitmap" }, section "__DATA, __objc_data", align 8 @"OBJC_METACLASS_$_Bitmap" = global %struct._class_t { ptr @"OBJC_METACLASS_$_Bitmap", ptr @"OBJC_CLASS_$_Bitmap", ptr @_objc_empty_cache, ptr @_objc_empty_vtable, ptr @"\01l_OBJC_METACLASS_RO_$_Bitmap" }, section "__DATA, __objc_data", align 8 @"\01L_OBJC_CLASS_NAME_" = internal global [7 x i8] c"Bitmap\00", section "__TEXT,__objc_classname,cstring_literals", align 1 @"\01l_OBJC_METACLASS_RO_$_Bitmap" = internal global %struct._class_ro_t { i32 3, i32 40, i32 40, ptr null, ptr @"\01L_OBJC_CLASS_NAME_", ptr null, ptr null, ptr null, ptr null, ptr null }, section "__DATA, __objc_const", align 8 @"\01L_OBJC_METH_VAR_NAME_" = internal global [32 x i8] c"initWithCopy:andInfo:andLength:\00", section "__TEXT,__objc_methname,cstring_literals", align 1 @"\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 @"\01l_OBJC_$_INSTANCE_METHODS_Bitmap" = internal global { i32, i32, [1 x %struct._objc_method] } { i32 24, i32 1, [1 x %struct._objc_method] [%struct._objc_method { ptr @"\01L_OBJC_METH_VAR_NAME_", ptr @"\01L_OBJC_METH_VAR_TYPE_", ptr @"\01-[Bitmap initWithCopy:andInfo:andLength:]" }] }, section "__DATA, __objc_const", align 8 @"\01l_OBJC_CLASS_RO_$_Bitmap" = internal global %struct._class_ro_t { i32 2, i32 0, i32 0, ptr null, ptr @"\01L_OBJC_CLASS_NAME_", ptr @"\01l_OBJC_$_INSTANCE_METHODS_Bitmap", ptr null, ptr null, ptr null, ptr null }, section "__DATA, __objc_const", align 8 @"\01L_OBJC_LABEL_CLASS_$" = internal global [1 x ptr] [ptr @"OBJC_CLASS_$_Bitmap"], section "__DATA, __objc_classlist, regular, no_dead_strip", align 8 @llvm.used = appending global [5 x ptr] [ptr @"\01L_OBJC_CLASS_NAME_", ptr @"\01L_OBJC_METH_VAR_NAME_", ptr @"\01L_OBJC_METH_VAR_TYPE_", ptr @"\01l_OBJC_$_INSTANCE_METHODS_Bitmap", ptr @"\01L_OBJC_LABEL_CLASS_$"], section "llvm.metadata" ; Function Attrs: ssp uwtable define internal ptr @"\01-[Bitmap initWithCopy:andInfo:andLength:]"(ptr %self, ptr %_cmd, ptr %otherBitmap, ptr byval(%struct.ImageInfo) align 8 %info, i64 %length) #0 !dbg !7 { entry: %retval = alloca ptr, align 8 %self.addr = alloca ptr, align 8 %_cmd.addr = alloca ptr, align 8 %otherBitmap.addr = alloca ptr, align 8 %length.addr = alloca i64, align 8 store ptr %self, ptr %self.addr, align 8 call void @llvm.dbg.declare(metadata ptr %self.addr, metadata !28, metadata !DIExpression()), !dbg !29 store ptr %_cmd, ptr %_cmd.addr, align 8 call void @llvm.dbg.declare(metadata ptr %_cmd.addr, metadata !30, metadata !DIExpression()), !dbg !29 store ptr %otherBitmap, ptr %otherBitmap.addr, align 8 call void @llvm.dbg.declare(metadata ptr %otherBitmap.addr, metadata !32, metadata !DIExpression()), !dbg !29 call void @llvm.dbg.declare(metadata ptr %info, metadata !33, metadata !DIExpression()), !dbg !34 store i64 %length, ptr %length.addr, align 8 call void @llvm.dbg.declare(metadata ptr %length.addr, metadata !35, metadata !DIExpression()), !dbg !36 %0 = load ptr, ptr %retval, !dbg !37 ret ptr %0, !dbg !37 } ; Function Attrs: nounwind readnone declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 attributes #0 = { ssp uwtable } attributes #1 = { nounwind readnone } !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!24, !25, !26, !27, !38} !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) !1 = !DIFile(filename: "t.mm", directory: "") !2 = !{} !3 = !{!4} !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) !5 = !DIFile(filename: "t.mm", directory: "") !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, retainedNodes: !2) !8 = !DISubroutineType(types: !9) !9 = !{!4, !10, !11, !14, !15, !19} !10 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !4) !11 = !DIDerivedType(tag: DW_TAG_typedef, name: "SEL", line: 9, flags: DIFlagArtificial, file: !1, baseType: !12) !12 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !13) !13 = !DICompositeType(tag: DW_TAG_structure_type, name: "objc_selector", flags: DIFlagFwdDecl, file: !1) !14 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !4) !15 = !DIDerivedType(tag: DW_TAG_typedef, name: "ImageInfo", line: 7, file: !1, baseType: !16) !16 = !DICompositeType(tag: DW_TAG_structure_type, line: 2, size: 192, align: 64, file: !1, elements: !17) !17 = !{!18, !21, !22} !18 = !DIDerivedType(tag: DW_TAG_member, name: "width", line: 4, size: 64, align: 64, file: !1, scope: !16, baseType: !19) !19 = !DIDerivedType(tag: DW_TAG_typedef, name: "NSUInteger", line: 1, file: !1, baseType: !20) !20 = !DIBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned) !21 = !DIDerivedType(tag: DW_TAG_member, name: "height", line: 5, size: 64, align: 64, offset: 64, file: !1, scope: !16, baseType: !19) !22 = !DIDerivedType(tag: DW_TAG_member, name: "pixelAspect", line: 6, size: 64, align: 64, offset: 128, file: !1, scope: !16, baseType: !23) !23 = !DIBasicType(tag: DW_TAG_base_type, name: "double", size: 64, align: 64, encoding: DW_ATE_float) !24 = !{i32 1, !"Objective-C Version", i32 2} !25 = !{i32 1, !"Objective-C Image Info Version", i32 0} !26 = !{i32 1, !"Objective-C Image Info Section", !"__DATA, __objc_imageinfo, regular, no_dead_strip"} !27 = !{i32 4, !"Objective-C Garbage Collection", i32 0} !28 = !DILocalVariable(name: "self", line: 9, arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !7, file: !5, type: !14) !29 = !DILocation(line: 9, scope: !7) !30 = !DILocalVariable(name: "_cmd", line: 9, arg: 2, flags: DIFlagArtificial, scope: !7, file: !5, type: !31) !31 = !DIDerivedType(tag: DW_TAG_typedef, name: "SEL", line: 9, file: !1, baseType: !12) !32 = !DILocalVariable(name: "otherBitmap", line: 9, arg: 3, scope: !7, file: !5, type: !14) !33 = !DILocalVariable(name: "info", line: 10, arg: 4, scope: !7, file: !5, type: !15) !34 = !DILocation(line: 10, scope: !7) !35 = !DILocalVariable(name: "length", line: 11, arg: 5, scope: !7, file: !5, type: !19) !36 = !DILocation(line: 11, scope: !7) !37 = !DILocation(line: 13, scope: !7) !38 = !{i32 1, !"Debug Info Version", i32 3}