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-NEXT: DW_AT_name {{.*}} "info" 10 ; 11 ; generated from 12 ; 13 ; typedef unsigned long NSUInteger; 14 ; typedef struct 15 ; { 16 ; NSUInteger width; 17 ; NSUInteger height; 18 ; double pixelAspect; 19 ; } ImageInfo; 20 ; @implementation Bitmap 21 ; - (id)initWithCopy:(Bitmap *)otherBitmap 22 ; andInfo:(ImageInfo)info 23 ; andLength:(NSUInteger)length 24 ; { 25 ; } 26 ; @end 27 28 ; ModuleID = 't.mm' 29 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" 30 target triple = "x86_64-apple-macosx10.8.0" 31 32 %0 = type opaque 33 %struct._objc_cache = type opaque 34 %struct._class_t = type { %struct._class_t*, %struct._class_t*, %struct._objc_cache*, i8* (i8*, i8*)**, %struct._class_ro_t* } 35 %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* } 36 %struct.__method_list_t = type { i32, i32, [0 x %struct._objc_method] } 37 %struct._objc_method = type { i8*, i8*, i8* } 38 %struct._objc_protocol_list = type { i64, [0 x %struct._protocol_t*] } 39 %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** } 40 %struct._prop_list_t = type { i32, i32, [0 x %struct._prop_t] } 41 %struct._prop_t = type { i8*, i8* } 42 %struct._ivar_list_t = type { i32, i32, [0 x %struct._ivar_t] } 43 %struct._ivar_t = type { i64*, i8*, i8*, i32, i32 } 44 %struct.ImageInfo = type { i64, i64, double } 45 46 @_objc_empty_cache = external global %struct._objc_cache 47 @_objc_empty_vtable = external global i8* (i8*, i8*)* 48 @"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_$_Bitmap" }, section "__DATA, __objc_data", align 8 49 @"OBJC_METACLASS_$_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_$_Bitmap" }, section "__DATA, __objc_data", align 8 50 @"\01L_OBJC_CLASS_NAME_" = internal global [7 x i8] c"Bitmap\00", section "__TEXT,__objc_classname,cstring_literals", align 1 51 @"\01l_OBJC_METACLASS_RO_$_Bitmap" = internal global %struct._class_ro_t { i32 3, i32 40, i32 40, i8* null, i8* getelementptr inbounds ([7 x i8]* @"\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 52 @"\01L_OBJC_METH_VAR_NAME_" = internal global [32 x i8] c"initWithCopy:andInfo:andLength:\00", section "__TEXT,__objc_methname,cstring_literals", align 1 53 @"\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 54 @"\01l_OBJC_$_INSTANCE_METHODS_Bitmap" = internal global { i32, i32, [1 x %struct._objc_method] } { i32 24, i32 1, [1 x %struct._objc_method] [%struct._objc_method { i8* getelementptr inbounds ([32 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i32 0, i32 0), i8* getelementptr inbounds ([23 x i8]* @"\01L_OBJC_METH_VAR_TYPE_", i32 0, i32 0), i8* bitcast (i8* (%0*, i8*, %0*, %struct.ImageInfo*, i64)* @"\01-[Bitmap initWithCopy:andInfo:andLength:]" to i8*) }] }, section "__DATA, __objc_const", align 8 55 @"\01l_OBJC_CLASS_RO_$_Bitmap" = internal global %struct._class_ro_t { i32 2, i32 0, i32 0, i8* null, i8* getelementptr inbounds ([7 x i8]* @"\01L_OBJC_CLASS_NAME_", i32 0, i32 0), %struct.__method_list_t* bitcast ({ i32, i32, [1 x %struct._objc_method] }* @"\01l_OBJC_$_INSTANCE_METHODS_Bitmap" to %struct.__method_list_t*), %struct._objc_protocol_list* null, %struct._ivar_list_t* null, i8* null, %struct._prop_list_t* null }, section "__DATA, __objc_const", align 8 56 @"\01L_OBJC_LABEL_CLASS_$" = internal global [1 x i8*] [i8* bitcast (%struct._class_t* @"OBJC_CLASS_$_Bitmap" to i8*)], section "__DATA, __objc_classlist, regular, no_dead_strip", align 8 57 @llvm.used = appending global [5 x i8*] [i8* getelementptr inbounds ([7 x i8]* @"\01L_OBJC_CLASS_NAME_", i32 0, i32 0), i8* getelementptr inbounds ([32 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i32 0, i32 0), i8* getelementptr inbounds ([23 x i8]* @"\01L_OBJC_METH_VAR_TYPE_", i32 0, i32 0), i8* bitcast ({ i32, i32, [1 x %struct._objc_method] }* @"\01l_OBJC_$_INSTANCE_METHODS_Bitmap" to i8*), i8* bitcast ([1 x i8*]* @"\01L_OBJC_LABEL_CLASS_$" to i8*)], section "llvm.metadata" 58 59 ; Function Attrs: ssp uwtable 60 define internal i8* @"\01-[Bitmap initWithCopy:andInfo:andLength:]"(%0* %self, i8* %_cmd, %0* %otherBitmap, %struct.ImageInfo* byval align 8 %info, i64 %length) #0 { 61 entry: 62 %retval = alloca i8*, align 8 63 %self.addr = alloca %0*, align 8 64 %_cmd.addr = alloca i8*, align 8 65 %otherBitmap.addr = alloca %0*, align 8 66 %length.addr = alloca i64, align 8 67 store %0* %self, %0** %self.addr, align 8 68 call void @llvm.dbg.declare(metadata !{%0** %self.addr}, metadata !28), !dbg !29 69 store i8* %_cmd, i8** %_cmd.addr, align 8 70 call void @llvm.dbg.declare(metadata !{i8** %_cmd.addr}, metadata !30), !dbg !29 71 store %0* %otherBitmap, %0** %otherBitmap.addr, align 8 72 call void @llvm.dbg.declare(metadata !{%0** %otherBitmap.addr}, metadata !32), !dbg !29 73 call void @llvm.dbg.declare(metadata !{%struct.ImageInfo* %info}, metadata !33), !dbg !34 74 store i64 %length, i64* %length.addr, align 8 75 call void @llvm.dbg.declare(metadata !{i64* %length.addr}, metadata !35), !dbg !36 76 %0 = load i8** %retval, !dbg !37 77 ret i8* %0, !dbg !37 78 } 79 80 ; Function Attrs: nounwind readnone 81 declare void @llvm.dbg.declare(metadata, metadata) #1 82 83 attributes #0 = { ssp uwtable } 84 attributes #1 = { nounwind readnone } 85 86 !llvm.dbg.cu = !{!0} 87 !llvm.module.flags = !{!24, !25, !26, !27} 88 89 !0 = metadata !{i32 786449, metadata !1, i32 17, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 2, metadata !2, metadata !3, metadata !6, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/t.mm] [DW_LANG_ObjC_plus_plus] 90 !1 = metadata !{metadata !"t.mm", metadata !""} 91 !2 = metadata !{i32 0} 92 !3 = metadata !{metadata !4} 93 !4 = metadata !{i32 786451, metadata !1, metadata !5, metadata !"Bitmap", i32 8, i64 8, i64 8, i32 0, i32 512, null, metadata !2, i32 17, null, null} ; [ DW_TAG_structure_type ] [Bitmap] [line 8, size 8, align 8, offset 0] [from ] 94 !5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/t.mm] 95 !6 = metadata !{metadata !7} 96 !7 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"-[Bitmap initWithCopy:andInfo:andLength:]", metadata !"-[Bitmap initWithCopy:andInfo:andLength:]", metadata !"", i32 9, metadata !8, i1 true, i1 true, i32 0, i32 0, null, i32 256, i1 false, i8* (%0*, i8*, %0*, %struct.ImageInfo*, i64)* @"\01-[Bitmap initWithCopy:andInfo:andLength:]", null, null, metadata !2, i32 9} ; [ DW_TAG_subprogram ] [line 9] [local] [def] [-[Bitmap initWithCopy:andInfo:andLength:]] 97 !8 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !9, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 98 !9 = metadata !{metadata !4, metadata !10, metadata !11, metadata !14, metadata !15, metadata !19} 99 !10 = metadata !{i32 786447, i32 0, i32 0, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !4} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from Bitmap] 100 !11 = metadata !{i32 786454, metadata !1, i32 0, metadata !"SEL", i32 9, i64 0, i64 0, i64 0, i32 64, metadata !12} ; [ DW_TAG_typedef ] [SEL] [line 9, size 0, align 0, offset 0] [artificial] [from ] 101 !12 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !13} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from objc_selector] 102 !13 = metadata !{i32 786451, metadata !1, null, metadata !"objc_selector", i32 0, i64 0, i64 0, i32 0, i32 4, null, null, i32 0} ; [ DW_TAG_structure_type ] [objc_selector] [line 0, size 0, align 0, offset 0] [fwd] [from ] 103 !14 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !4} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from Bitmap] 104 !15 = metadata !{i32 786454, metadata !1, null, metadata !"ImageInfo", i32 7, i64 0, i64 0, i64 0, i32 0, metadata !16} ; [ DW_TAG_typedef ] [ImageInfo] [line 7, size 0, align 0, offset 0] [from ] 105 !16 = metadata !{i32 786451, metadata !1, null, metadata !"", i32 2, i64 192, i64 64, i32 0, i32 0, null, metadata !17, i32 0, null, null} ; [ DW_TAG_structure_type ] [line 2, size 192, align 64, offset 0] [from ] 106 !17 = metadata !{metadata !18, metadata !21, metadata !22} 107 !18 = metadata !{i32 786445, metadata !1, metadata !16, metadata !"width", i32 4, i64 64, i64 64, i64 0, i32 0, metadata !19} ; [ DW_TAG_member ] [width] [line 4, size 64, align 64, offset 0] [from NSUInteger] 108 !19 = metadata !{i32 786454, metadata !1, null, metadata !"NSUInteger", i32 1, i64 0, i64 0, i64 0, i32 0, metadata !20} ; [ DW_TAG_typedef ] [NSUInteger] [line 1, size 0, align 0, offset 0] [from long unsigned int] 109 !20 = metadata !{i32 786468, null, null, metadata !"long unsigned int", i32 0, i64 64, i64 64, i64 0, i32 0, i32 7} ; [ DW_TAG_base_type ] [long unsigned int] [line 0, size 64, align 64, offset 0, enc DW_ATE_unsigned] 110 !21 = metadata !{i32 786445, metadata !1, metadata !16, metadata !"height", i32 5, i64 64, i64 64, i64 64, i32 0, metadata !19} ; [ DW_TAG_member ] [height] [line 5, size 64, align 64, offset 64] [from NSUInteger] 111 !22 = metadata !{i32 786445, metadata !1, metadata !16, metadata !"pixelAspect", i32 6, i64 64, i64 64, i64 128, i32 0, metadata !23} ; [ DW_TAG_member ] [pixelAspect] [line 6, size 64, align 64, offset 128] [from double] 112 !23 = metadata !{i32 786468, null, null, metadata !"double", i32 0, i64 64, i64 64, i64 0, i32 0, i32 4} ; [ DW_TAG_base_type ] [double] [line 0, size 64, align 64, offset 0, enc DW_ATE_float] 113 !24 = metadata !{i32 1, metadata !"Objective-C Version", i32 2} 114 !25 = metadata !{i32 1, metadata !"Objective-C Image Info Version", i32 0} 115 !26 = metadata !{i32 1, metadata !"Objective-C Image Info Section", metadata !"__DATA, __objc_imageinfo, regular, no_dead_strip"} 116 !27 = metadata !{i32 4, metadata !"Objective-C Garbage Collection", i32 0} 117 !28 = metadata !{i32 786689, metadata !7, metadata !"self", metadata !5, i32 16777225, metadata !14, i32 1088, i32 0} ; [ DW_TAG_arg_variable ] [self] [line 9] 118 !29 = metadata !{i32 9, i32 0, metadata !7, null} 119 !30 = metadata !{i32 786689, metadata !7, metadata !"_cmd", metadata !5, i32 33554441, metadata !31, i32 64, i32 0} ; [ DW_TAG_arg_variable ] [_cmd] [line 9] 120 !31 = metadata !{i32 786454, metadata !1, null, metadata !"SEL", i32 9, i64 0, i64 0, i64 0, i32 0, metadata !12} ; [ DW_TAG_typedef ] [SEL] [line 9, size 0, align 0, offset 0] [from ] 121 !32 = metadata !{i32 786689, metadata !7, metadata !"otherBitmap", metadata !5, i32 50331657, metadata !14, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [otherBitmap] [line 9] 122 !33 = metadata !{i32 786689, metadata !7, metadata !"info", metadata !5, i32 67108874, metadata !15, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [info] [line 10] 123 !34 = metadata !{i32 10, i32 0, metadata !7, null} 124 !35 = metadata !{i32 786689, metadata !7, metadata !"length", metadata !5, i32 83886091, metadata !19, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [length] [line 11] 125 !36 = metadata !{i32 11, i32 0, metadata !7, null} 126 !37 = metadata !{i32 13, i32 0, metadata !7, null} 127
