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      1 ; RUN: llc -mtriple x86_64-apple-darwin -filetype=obj -o %t.o < %s
      2 ; RUN: llvm-dwarfdump -debug-dump=info %t.o | FileCheck %s
      3 
      4 ; Generated from llvm/tools/clang/test/CodeGenObjC/debug-info-blocks.m
      5 ; rdar://problem/9279956
      6 ; test that the DW_AT_location of self is at ( fbreg +{{[0-9]+}}, deref, +{{[0-9]+}} )
      7 
      8 ; CHECK: [[A:.*]]:   DW_TAG_structure_type
      9 ; CHECK-NEXT: DW_AT_APPLE_objc_complete_type
     10 ; CHECK-NEXT: DW_AT_name{{.*}}"A"
     11 
     12 ; CHECK: DW_TAG_subprogram
     13 ; CHECK: DW_TAG_subprogram
     14 ; CHECK: DW_TAG_subprogram
     15 ; CHECK-NOT: DW_TAG
     16 ; CHECK: DW_AT_object_pointer
     17 ; CHECK-NOT: DW_TAG
     18 ; CHECK: DW_AT_name{{.*}}_block_invoke
     19 
     20 ; CHECK-NOT: {{DW_TAG|NULL}}
     21 ; CHECK: DW_TAG_formal_parameter
     22 ; CHECK-NOT: DW_TAG
     23 ; CHECK: DW_AT_location
     24 ; CHECK-NOT: DW_TAG
     25 ; CHECK: DW_AT_name{{.*}}.block_descriptor
     26 
     27 ; CHECK-NOT: {{DW_TAG|NULL}}
     28 ; CHECK: DW_TAG_variable
     29 ; CHECK-NOT: DW_TAG
     30 ; 0x06 = DW_OP_deref
     31 ; 0x23 = DW_OP_uconst
     32 ; 0x91 = DW_OP_fbreg
     33 ; CHECK: DW_AT_location{{.*}}91 {{[0-9]+}} 06 23 {{[0-9]+}} )
     34 ; CHECK-NOT: DW_TAG
     35 ; CHECK: DW_AT_name{{.*}}"self"
     36 ; CHECK-NOT: DW_TAG
     37 ; CHECK: DW_AT_type{{.*}}{[[APTR:.*]]}
     38 ; CHECK-NOT: DW_TAG
     39 ; CHECK: DW_AT_artificial
     40 
     41 ; CHECK: [[APTR]]:   DW_TAG_pointer_type
     42 ; CHECK-NEXT: {[[A]]}
     43 
     44 
     45 ; ModuleID = 'llvm/tools/clang/test/CodeGenObjC/debug-info-blocks.m'
     46 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"
     47 target triple = "x86_64-apple-darwin"
     48 
     49 %0 = type opaque
     50 %1 = type opaque
     51 %struct._class_t = type { %struct._class_t*, %struct._class_t*, %struct._objc_cache*, i8* (i8*, i8*)**, %struct._class_ro_t* }
     52 %struct._objc_cache = type opaque
     53 %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* }
     54 %struct.__method_list_t = type { i32, i32, [0 x %struct._objc_method] }
     55 %struct._objc_method = type { i8*, i8*, i8* }
     56 %struct._objc_protocol_list = type { i64, [0 x %struct._protocol_t*] }
     57 %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** }
     58 %struct._prop_list_t = type { i32, i32, [0 x %struct._prop_t] }
     59 %struct._prop_t = type { i8*, i8* }
     60 %struct._ivar_list_t = type { i32, i32, [0 x %struct._ivar_t] }
     61 %struct._ivar_t = type { i64*, i8*, i8*, i32, i32 }
     62 %struct._message_ref_t = type { i8*, i8* }
     63 %struct._objc_super = type { i8*, i8* }
     64 %struct.__block_descriptor = type { i64, i64 }
     65 %struct.__block_literal_generic = type { i8*, i32, i32, i8*, %struct.__block_descriptor* }
     66 
     67 @"OBJC_CLASS_$_A" = global %struct._class_t { %struct._class_t* @"OBJC_METACLASS_$_A", %struct._class_t* @"OBJC_CLASS_$_NSObject", %struct._objc_cache* @_objc_empty_cache, i8* (i8*, i8*)** @_objc_empty_vtable, %struct._class_ro_t* @"\01l_OBJC_CLASS_RO_$_A" }, section "__DATA, __objc_data", align 8
     68 @"\01L_OBJC_CLASSLIST_SUP_REFS_$_" = internal global %struct._class_t* @"OBJC_CLASS_$_A", section "__DATA, __objc_superrefs, regular, no_dead_strip", align 8
     69 @"\01L_OBJC_METH_VAR_NAME_" = internal global [5 x i8] c"init\00", section "__TEXT,__objc_methname,cstring_literals", align 1
     70 @"\01L_OBJC_SELECTOR_REFERENCES_" = internal externally_initialized global i8* getelementptr inbounds ([5 x i8], [5 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i32 0, i32 0), section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
     71 @"OBJC_CLASS_$_NSMutableDictionary" = external global %struct._class_t
     72 @"\01L_OBJC_CLASSLIST_REFERENCES_$_" = internal global %struct._class_t* @"OBJC_CLASS_$_NSMutableDictionary", section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
     73 @"\01L_OBJC_METH_VAR_NAME_1" = internal global [6 x i8] c"alloc\00", section "__TEXT,__objc_methname,cstring_literals", align 1
     74 @"\01l_objc_msgSend_fixup_alloc" = weak hidden global { i8* (i8*, %struct._message_ref_t*, ...)*, i8* } { i8* (i8*, %struct._message_ref_t*, ...)* @objc_msgSend_fixup, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @"\01L_OBJC_METH_VAR_NAME_1", i32 0, i32 0) }, section "__DATA, __objc_msgrefs, coalesced", align 16
     75 @"\01L_OBJC_METH_VAR_NAME_2" = internal global [6 x i8] c"count\00", section "__TEXT,__objc_methname,cstring_literals", align 1
     76 @"\01l_objc_msgSend_fixup_count" = weak hidden global { i8* (i8*, %struct._message_ref_t*, ...)*, i8* } { i8* (i8*, %struct._message_ref_t*, ...)* @objc_msgSend_fixup, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @"\01L_OBJC_METH_VAR_NAME_2", i32 0, i32 0) }, section "__DATA, __objc_msgrefs, coalesced", align 16
     77 @"OBJC_IVAR_$_A.ivar" = global i64 0, section "__DATA, __objc_ivar", align 8
     78 @_NSConcreteStackBlock = external global i8*
     79 @.str = private unnamed_addr constant [6 x i8] c"v8@?0\00", align 1
     80 @__block_descriptor_tmp = internal constant { i64, i64, i8*, i8*, i8*, i64 } { i64 0, i64 40, i8* bitcast (void (i8*, i8*)* @__copy_helper_block_ to i8*), i8* bitcast (void (i8*)* @__destroy_helper_block_ to i8*), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i32 0, i32 0), i64 256 }
     81 @_objc_empty_cache = external global %struct._objc_cache
     82 @_objc_empty_vtable = external global i8* (i8*, i8*)*
     83 @"OBJC_METACLASS_$_NSObject" = external global %struct._class_t
     84 @"\01L_OBJC_CLASS_NAME_" = internal global [2 x i8] c"A\00", section "__TEXT,__objc_classname,cstring_literals", align 1
     85 @"\01l_OBJC_METACLASS_RO_$_A" = internal global %struct._class_ro_t { i32 1, i32 40, i32 40, i8* null, i8* getelementptr inbounds ([2 x i8], [2 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
     86 @"OBJC_METACLASS_$_A" = global %struct._class_t { %struct._class_t* @"OBJC_METACLASS_$_NSObject", %struct._class_t* @"OBJC_METACLASS_$_NSObject", %struct._objc_cache* @_objc_empty_cache, i8* (i8*, i8*)** @_objc_empty_vtable, %struct._class_ro_t* @"\01l_OBJC_METACLASS_RO_$_A" }, section "__DATA, __objc_data", align 8
     87 @"OBJC_CLASS_$_NSObject" = external global %struct._class_t
     88 @"\01L_OBJC_METH_VAR_TYPE_" = internal global [8 x i8] c"@16@0:8\00", section "__TEXT,__objc_methtype,cstring_literals", align 1
     89 @"\01l_OBJC_$_INSTANCE_METHODS_A" = internal global { i32, i32, [1 x %struct._objc_method] } { i32 24, i32 1, [1 x %struct._objc_method] [%struct._objc_method { i8* getelementptr inbounds ([5 x i8], [5 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i32 0, i32 0), i8* getelementptr inbounds ([8 x i8], [8 x i8]* @"\01L_OBJC_METH_VAR_TYPE_", i32 0, i32 0), i8* bitcast (i8* (%0*, i8*)* @"\01-[A init]" to i8*) }] }, section "__DATA, __objc_const", align 8
     90 @"\01L_OBJC_METH_VAR_NAME_3" = internal global [5 x i8] c"ivar\00", section "__TEXT,__objc_methname,cstring_literals", align 1
     91 @"\01L_OBJC_METH_VAR_TYPE_4" = internal global [2 x i8] c"i\00", section "__TEXT,__objc_methtype,cstring_literals", align 1
     92 @"\01l_OBJC_$_INSTANCE_VARIABLES_A" = internal global { i32, i32, [1 x %struct._ivar_t] } { i32 32, i32 1, [1 x %struct._ivar_t] [%struct._ivar_t { i64* @"OBJC_IVAR_$_A.ivar", i8* getelementptr inbounds ([5 x i8], [5 x i8]* @"\01L_OBJC_METH_VAR_NAME_3", i32 0, i32 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @"\01L_OBJC_METH_VAR_TYPE_4", i32 0, i32 0), i32 2, i32 4 }] }, section "__DATA, __objc_const", align 8
     93 @"\01l_OBJC_CLASS_RO_$_A" = internal global %struct._class_ro_t { i32 0, i32 0, i32 4, i8* null, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @"\01L_OBJC_CLASS_NAME_", i32 0, i32 0), %struct.__method_list_t* bitcast ({ i32, i32, [1 x %struct._objc_method] }* @"\01l_OBJC_$_INSTANCE_METHODS_A" to %struct.__method_list_t*), %struct._objc_protocol_list* null, %struct._ivar_list_t* bitcast ({ i32, i32, [1 x %struct._ivar_t] }* @"\01l_OBJC_$_INSTANCE_VARIABLES_A" to %struct._ivar_list_t*), i8* null, %struct._prop_list_t* null }, section "__DATA, __objc_const", align 8
     94 @"\01L_OBJC_CLASSLIST_REFERENCES_$_5" = internal global %struct._class_t* @"OBJC_CLASS_$_A", section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
     95 @"\01L_OBJC_LABEL_CLASS_$" = internal global [1 x i8*] [i8* bitcast (%struct._class_t* @"OBJC_CLASS_$_A" to i8*)], section "__DATA, __objc_classlist, regular, no_dead_strip", align 8
     96 @llvm.used = appending global [14 x i8*] [i8* bitcast (%struct._class_t** @"\01L_OBJC_CLASSLIST_SUP_REFS_$_" to i8*), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i32 0, i32 0), i8* bitcast (i8** @"\01L_OBJC_SELECTOR_REFERENCES_" to i8*), i8* bitcast (%struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_" to i8*), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @"\01L_OBJC_METH_VAR_NAME_1", i32 0, i32 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @"\01L_OBJC_METH_VAR_NAME_2", i32 0, i32 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @"\01L_OBJC_CLASS_NAME_", i32 0, i32 0), i8* getelementptr inbounds ([8 x i8], [8 x i8]* @"\01L_OBJC_METH_VAR_TYPE_", i32 0, i32 0), i8* bitcast ({ i32, i32, [1 x %struct._objc_method] }* @"\01l_OBJC_$_INSTANCE_METHODS_A" to i8*), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @"\01L_OBJC_METH_VAR_NAME_3", i32 0, i32 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @"\01L_OBJC_METH_VAR_TYPE_4", i32 0, i32 0), i8* bitcast ({ i32, i32, [1 x %struct._ivar_t] }* @"\01l_OBJC_$_INSTANCE_VARIABLES_A" to i8*), i8* bitcast (%struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_5" to i8*), i8* bitcast ([1 x i8*]* @"\01L_OBJC_LABEL_CLASS_$" to i8*)], section "llvm.metadata"
     97 
     98 define internal i8* @"\01-[A init]"(%0* %self, i8* %_cmd) #0 !dbg !13 {
     99   %1 = alloca %0*, align 8
    100   %2 = alloca i8*, align 8
    101   %3 = alloca %struct._objc_super
    102   %4 = alloca <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>, align 8
    103   store %0* %self, %0** %1, align 8
    104   call void @llvm.dbg.declare(metadata %0** %1, metadata !60, metadata !DIExpression()), !dbg !62
    105   store i8* %_cmd, i8** %2, align 8
    106   call void @llvm.dbg.declare(metadata i8** %2, metadata !63, metadata !DIExpression()), !dbg !62
    107   %5 = load %0*, %0** %1, !dbg !65
    108   %6 = bitcast %0* %5 to i8*, !dbg !65
    109   %7 = getelementptr inbounds %struct._objc_super, %struct._objc_super* %3, i32 0, i32 0, !dbg !65
    110   store i8* %6, i8** %7, !dbg !65
    111   %8 = load %struct._class_t*, %struct._class_t** @"\01L_OBJC_CLASSLIST_SUP_REFS_$_", !dbg !65
    112   %9 = bitcast %struct._class_t* %8 to i8*, !dbg !65
    113   %10 = getelementptr inbounds %struct._objc_super, %struct._objc_super* %3, i32 0, i32 1, !dbg !65
    114   store i8* %9, i8** %10, !dbg !65
    115   %11 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", !dbg !65, !invariant.load !67
    116   %12 = call i8* bitcast (i8* (%struct._objc_super*, i8*, ...)* @objc_msgSendSuper2 to i8* (%struct._objc_super*, i8*)*)(%struct._objc_super* %3, i8* %11), !dbg !65
    117   %13 = bitcast i8* %12 to %0*, !dbg !65
    118   store %0* %13, %0** %1, align 8, !dbg !65
    119   %14 = icmp ne %0* %13, null, !dbg !65
    120   br i1 %14, label %15, label %24, !dbg !65
    121 
    122 ; <label>:15                                      ; preds = %0
    123   %16 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %4, i32 0, i32 0, !dbg !68
    124   store i8* bitcast (i8** @_NSConcreteStackBlock to i8*), i8** %16, !dbg !68
    125   %17 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %4, i32 0, i32 1, !dbg !68
    126   store i32 -1040187392, i32* %17, !dbg !68
    127   %18 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %4, i32 0, i32 2, !dbg !68
    128   store i32 0, i32* %18, !dbg !68
    129   %19 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %4, i32 0, i32 3, !dbg !68
    130   store i8* bitcast (void (i8*)* @"__9-[A init]_block_invoke" to i8*), i8** %19, !dbg !68
    131   %20 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %4, i32 0, i32 4, !dbg !68
    132   store %struct.__block_descriptor* bitcast ({ i64, i64, i8*, i8*, i8*, i64 }* @__block_descriptor_tmp to %struct.__block_descriptor*), %struct.__block_descriptor** %20, !dbg !68
    133   %21 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %4, i32 0, i32 5, !dbg !68
    134   %22 = load %0*, %0** %1, align 8, !dbg !68
    135   store %0* %22, %0** %21, align 8, !dbg !68
    136   %23 = bitcast <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %4 to void ()*, !dbg !68
    137   call void @run(void ()* %23), !dbg !68
    138   br label %24, !dbg !70
    139 
    140 ; <label>:24                                      ; preds = %15, %0
    141   %25 = load %0*, %0** %1, align 8, !dbg !71
    142   %26 = bitcast %0* %25 to i8*, !dbg !71
    143   ret i8* %26, !dbg !71
    144 }
    145 
    146 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
    147 
    148 declare i8* @objc_msgSendSuper2(%struct._objc_super*, i8*, ...)
    149 
    150 define internal void @run(void ()* %block) #0 !dbg !39 {
    151   %1 = alloca void ()*, align 8
    152   store void ()* %block, void ()** %1, align 8
    153   call void @llvm.dbg.declare(metadata void ()** %1, metadata !72, metadata !DIExpression()), !dbg !73
    154   %2 = load void ()*, void ()** %1, align 8, !dbg !74
    155   %3 = bitcast void ()* %2 to %struct.__block_literal_generic*, !dbg !74
    156   %4 = getelementptr inbounds %struct.__block_literal_generic, %struct.__block_literal_generic* %3, i32 0, i32 3, !dbg !74
    157   %5 = bitcast %struct.__block_literal_generic* %3 to i8*, !dbg !74
    158   %6 = load i8*, i8** %4, !dbg !74
    159   %7 = bitcast i8* %6 to void (i8*)*, !dbg !74
    160   call void %7(i8* %5), !dbg !74
    161   ret void, !dbg !75
    162 }
    163 
    164 define internal void @"__9-[A init]_block_invoke"(i8* %.block_descriptor) #0 !dbg !27 {
    165   %1 = alloca i8*, align 8
    166   %2 = alloca <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>*, align 8
    167   %d = alloca %1*, align 8
    168   store i8* %.block_descriptor, i8** %1, align 8
    169   %3 = load i8*, i8** %1
    170   call void @llvm.dbg.value(metadata i8* %3, i64 0, metadata !76, metadata !DIExpression()), !dbg !88
    171   call void @llvm.dbg.declare(metadata i8* %.block_descriptor, metadata !76, metadata !DIExpression()), !dbg !88
    172   %4 = bitcast i8* %.block_descriptor to <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>*, !dbg !88
    173   store <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %4, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>** %2, align 8, !dbg !88
    174   %5 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %4, i32 0, i32 5, !dbg !88
    175   call void @llvm.dbg.declare(metadata <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>** %2, metadata !89, metadata !111), !dbg !90
    176   call void @llvm.dbg.declare(metadata %1** %d, metadata !91, metadata !DIExpression()), !dbg !100
    177   %6 = load %struct._class_t*, %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_", !dbg !100
    178   %7 = bitcast %struct._class_t* %6 to i8*, !dbg !100
    179   %8 = load i8*, i8** getelementptr inbounds (%struct._message_ref_t, %struct._message_ref_t* bitcast ({ i8* (i8*, %struct._message_ref_t*, ...)*, i8* }* @"\01l_objc_msgSend_fixup_alloc" to %struct._message_ref_t*), i32 0, i32 0), !dbg !100
    180   %9 = bitcast i8* %8 to i8* (i8*, i8*)*, !dbg !100
    181   %10 = call i8* %9(i8* %7, i8* bitcast ({ i8* (i8*, %struct._message_ref_t*, ...)*, i8* }* @"\01l_objc_msgSend_fixup_alloc" to i8*)), !dbg !100
    182   %11 = bitcast i8* %10 to %1*, !dbg !100
    183   %12 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", !dbg !100, !invariant.load !67
    184   %13 = bitcast %1* %11 to i8*, !dbg !100
    185   %14 = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*)*)(i8* %13, i8* %12), !dbg !100
    186   %15 = bitcast i8* %14 to %1*, !dbg !100
    187   store %1* %15, %1** %d, align 8, !dbg !100
    188   %16 = load %1*, %1** %d, align 8, !dbg !101
    189   %17 = bitcast %1* %16 to i8*, !dbg !101
    190   %18 = load i8*, i8** getelementptr inbounds (%struct._message_ref_t, %struct._message_ref_t* bitcast ({ i8* (i8*, %struct._message_ref_t*, ...)*, i8* }* @"\01l_objc_msgSend_fixup_count" to %struct._message_ref_t*), i32 0, i32 0), !dbg !101
    191   %19 = bitcast i8* %18 to i32 (i8*, i8*)*, !dbg !101
    192   %20 = call i32 %19(i8* %17, i8* bitcast ({ i8* (i8*, %struct._message_ref_t*, ...)*, i8* }* @"\01l_objc_msgSend_fixup_count" to i8*)), !dbg !101
    193   %21 = add nsw i32 42, %20, !dbg !101
    194   %22 = load %0*, %0** %5, align 8, !dbg !101
    195   %23 = load i64, i64* @"OBJC_IVAR_$_A.ivar", !dbg !101, !invariant.load !67
    196   %24 = bitcast %0* %22 to i8*, !dbg !101
    197   %25 = getelementptr inbounds i8, i8* %24, i64 %23, !dbg !101
    198   %26 = bitcast i8* %25 to i32*, !dbg !101
    199   store i32 %21, i32* %26, align 4, !dbg !101
    200   ret void, !dbg !90
    201 }
    202 
    203 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
    204 
    205 declare i8* @objc_msgSend_fixup(i8*, %struct._message_ref_t*, ...)
    206 
    207 declare i8* @objc_msgSend(i8*, i8*, ...) #2
    208 
    209 define internal void @__copy_helper_block_(i8*, i8*) !dbg !31 {
    210   %3 = alloca i8*, align 8
    211   %4 = alloca i8*, align 8
    212   store i8* %0, i8** %3, align 8
    213   call void @llvm.dbg.declare(metadata i8** %3, metadata !102, metadata !DIExpression()), !dbg !103
    214   store i8* %1, i8** %4, align 8
    215   call void @llvm.dbg.declare(metadata i8** %4, metadata !104, metadata !DIExpression()), !dbg !103
    216   %5 = load i8*, i8** %4, !dbg !103
    217   %6 = bitcast i8* %5 to <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>*, !dbg !103
    218   %7 = load i8*, i8** %3, !dbg !103
    219   %8 = bitcast i8* %7 to <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>*, !dbg !103
    220   %9 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %6, i32 0, i32 5, !dbg !103
    221   %10 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %8, i32 0, i32 5, !dbg !103
    222   %11 = load %0*, %0** %9, !dbg !103
    223   %12 = bitcast %0* %11 to i8*, !dbg !103
    224   %13 = bitcast %0** %10 to i8*, !dbg !103
    225   call void @_Block_object_assign(i8* %13, i8* %12, i32 3) #3, !dbg !103
    226   ret void, !dbg !103
    227 }
    228 
    229 declare void @_Block_object_assign(i8*, i8*, i32)
    230 
    231 define internal void @__destroy_helper_block_(i8*) !dbg !35 {
    232   %2 = alloca i8*, align 8
    233   store i8* %0, i8** %2, align 8
    234   call void @llvm.dbg.declare(metadata i8** %2, metadata !105, metadata !DIExpression()), !dbg !106
    235   %3 = load i8*, i8** %2, !dbg !106
    236   %4 = bitcast i8* %3 to <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>*, !dbg !106
    237   %5 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>, <{ i8*, i32, i32, i8*, %struct.__block_descriptor*, %0* }>* %4, i32 0, i32 5, !dbg !106
    238   %6 = load %0*, %0** %5, !dbg !106
    239   %7 = bitcast %0* %6 to i8*, !dbg !106
    240   call void @_Block_object_dispose(i8* %7, i32 3) #3, !dbg !106
    241   ret void, !dbg !106
    242 }
    243 
    244 declare void @_Block_object_dispose(i8*, i32)
    245 
    246 define i32 @main() #0 !dbg !36 {
    247   %1 = alloca i32, align 4
    248   %a = alloca %0*, align 8
    249   store i32 0, i32* %1
    250   call void @llvm.dbg.declare(metadata %0** %a, metadata !107, metadata !DIExpression()), !dbg !108
    251   %2 = load %struct._class_t*, %struct._class_t** @"\01L_OBJC_CLASSLIST_REFERENCES_$_5", !dbg !108
    252   %3 = bitcast %struct._class_t* %2 to i8*, !dbg !108
    253   %4 = load i8*, i8** getelementptr inbounds (%struct._message_ref_t, %struct._message_ref_t* bitcast ({ i8* (i8*, %struct._message_ref_t*, ...)*, i8* }* @"\01l_objc_msgSend_fixup_alloc" to %struct._message_ref_t*), i32 0, i32 0), !dbg !108
    254   %5 = bitcast i8* %4 to i8* (i8*, i8*)*, !dbg !108
    255   %6 = call i8* %5(i8* %3, i8* bitcast ({ i8* (i8*, %struct._message_ref_t*, ...)*, i8* }* @"\01l_objc_msgSend_fixup_alloc" to i8*)), !dbg !108
    256   %7 = bitcast i8* %6 to %0*, !dbg !108
    257   %8 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", !dbg !108, !invariant.load !67
    258   %9 = bitcast %0* %7 to i8*, !dbg !108
    259   %10 = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*)*)(i8* %9, i8* %8), !dbg !108
    260   %11 = bitcast i8* %10 to %0*, !dbg !108
    261   store %0* %11, %0** %a, align 8, !dbg !108
    262   ret i32 0, !dbg !109
    263 }
    264 
    265 attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
    266 attributes #1 = { nounwind readnone }
    267 attributes #2 = { nonlazybind }
    268 attributes #3 = { nounwind }
    269 
    270 !llvm.dbg.cu = !{!0}
    271 !llvm.module.flags = !{!56, !57, !58, !59, !110}
    272 
    273 !0 = distinct !DICompileUnit(language: DW_LANG_ObjC, producer: "clang version 3.3 ", isOptimized: false, runtimeVersion: 2, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports:  !2)
    274 !1 = !DIFile(filename: "llvm/tools/clang/test/CodeGenObjC/<unknown>", directory: "llvm/_build.ninja.Debug")
    275 !2 = !{}
    276 !3 = !{!4}
    277 !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", line: 33, size: 32, align: 32, flags: DIFlagObjcClassComplete, runtimeLang: DW_LANG_ObjC, file: !5, scope: !6, elements: !7)
    278 !5 = !DIFile(filename: "llvm/tools/clang/test/CodeGenObjC/debug-info-blocks.m", directory: "llvm/_build.ninja.Debug")
    279 !6 = !DIFile(filename: "llvm/tools/clang/test/CodeGenObjC/debug-info-blocks.m", directory: "llvm/_build.ninja.Debug")
    280 !7 = !{!8, !10}
    281 !8 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !4, baseType: !9)
    282 !9 = !DICompositeType(tag: DW_TAG_structure_type, name: "NSObject", line: 21, align: 8, runtimeLang: DW_LANG_ObjC, file: !5, scope: !6, elements: !2)
    283 !10 = !DIDerivedType(tag: DW_TAG_member, name: "ivar", line: 35, size: 32, align: 32, file: !5, scope: !6, baseType: !11)
    284 !11 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
    285 !13 = distinct !DISubprogram(name: "-[A init]", line: 46, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 46, file: !5, scope: !6, type: !14, variables: !2)
    286 !14 = !DISubroutineType(types: !15)
    287 !15 = !{!16, !23, !24}
    288 !16 = !DIDerivedType(tag: DW_TAG_typedef, name: "id", line: 46, file: !5, baseType: !17)
    289 !17 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !18)
    290 !18 = !DICompositeType(tag: DW_TAG_structure_type, name: "objc_object", file: !1, elements: !19)
    291 !19 = !{!20}
    292 !20 = !DIDerivedType(tag: DW_TAG_member, name: "isa", size: 64, file: !1, scope: !18, baseType: !21)
    293 !21 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !22)
    294 !22 = !DICompositeType(tag: DW_TAG_structure_type, name: "objc_class", flags: DIFlagFwdDecl, file: !1)
    295 !23 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !4)
    296 !24 = !DIDerivedType(tag: DW_TAG_typedef, name: "SEL", line: 46, flags: DIFlagArtificial, file: !5, baseType: !25)
    297 !25 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !26)
    298 !26 = !DICompositeType(tag: DW_TAG_structure_type, name: "objc_selector", flags: DIFlagFwdDecl, file: !1)
    299 !27 = distinct !DISubprogram(name: "__9-[A init]_block_invoke", line: 49, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 49, file: !5, scope: !6, type: !28, variables: !2)
    300 !28 = !DISubroutineType(types: !29)
    301 !29 = !{null, !30}
    302 !30 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: null)
    303 !31 = distinct !DISubprogram(name: "__copy_helper_block_", line: 52, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !0, scopeLine: 52, file: !1, scope: !32, type: !33, variables: !2)
    304 !32 = !DIFile(filename: "llvm/tools/clang/test/CodeGenObjC/<unknown>", directory: "llvm/_build.ninja.Debug")
    305 !33 = !DISubroutineType(types: !34)
    306 !34 = !{null, !30, !30}
    307 !35 = distinct !DISubprogram(name: "__destroy_helper_block_", line: 52, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !0, scopeLine: 52, file: !1, scope: !32, type: !28, variables: !2)
    308 !36 = distinct !DISubprogram(name: "main", line: 59, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !0, scopeLine: 60, file: !5, scope: !6, type: !37, variables: !2)
    309 !37 = !DISubroutineType(types: !38)
    310 !38 = !{!11}
    311 !39 = distinct !DISubprogram(name: "run", line: 39, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 40, file: !5, scope: !6, type: !40, variables: !2)
    312 !40 = !DISubroutineType(types: !41)
    313 !41 = !{null, !42}
    314 !42 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !43)
    315 !43 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_literal_generic", line: 40, size: 256, flags: DIFlagAppleBlock, file: !5, scope: !6, elements: !44)
    316 !44 = !{!45, !46, !47, !48, !49}
    317 !45 = !DIDerivedType(tag: DW_TAG_member, name: "__isa", size: 64, align: 64, file: !5, scope: !6, baseType: !30)
    318 !46 = !DIDerivedType(tag: DW_TAG_member, name: "__flags", size: 32, align: 32, offset: 64, file: !5, scope: !6, baseType: !11)
    319 !47 = !DIDerivedType(tag: DW_TAG_member, name: "__reserved", size: 32, align: 32, offset: 96, file: !5, scope: !6, baseType: !11)
    320 !48 = !DIDerivedType(tag: DW_TAG_member, name: "__FuncPtr", size: 64, align: 64, offset: 128, file: !5, scope: !6, baseType: !30)
    321 !49 = !DIDerivedType(tag: DW_TAG_member, name: "__descriptor", line: 40, size: 64, align: 64, offset: 192, file: !5, scope: !6, baseType: !50)
    322 !50 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !51)
    323 !51 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_descriptor", line: 40, size: 128, flags: DIFlagAppleBlock, file: !5, scope: !6, elements: !52)
    324 !52 = !{!53, !55}
    325 !53 = !DIDerivedType(tag: DW_TAG_member, name: "reserved", size: 64, align: 64, file: !5, scope: !6, baseType: !54)
    326 !54 = !DIBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned)
    327 !55 = !DIDerivedType(tag: DW_TAG_member, name: "Size", size: 64, align: 64, offset: 64, file: !5, scope: !6, baseType: !54)
    328 !56 = !{i32 1, !"Objective-C Version", i32 2}
    329 !57 = !{i32 1, !"Objective-C Image Info Version", i32 0}
    330 !58 = !{i32 1, !"Objective-C Image Info Section", !"__DATA, __objc_imageinfo, regular, no_dead_strip"}
    331 !59 = !{i32 4, !"Objective-C Garbage Collection", i32 0}
    332 !60 = !DILocalVariable(name: "self", line: 46, arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !13, file: !32, type: !61)
    333 !61 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !4)
    334 !62 = !DILocation(line: 46, scope: !13)
    335 !63 = !DILocalVariable(name: "_cmd", line: 46, arg: 2, flags: DIFlagArtificial, scope: !13, file: !32, type: !64)
    336 !64 = !DIDerivedType(tag: DW_TAG_typedef, name: "SEL", line: 46, file: !5, baseType: !25)
    337 !65 = !DILocation(line: 48, scope: !66)
    338 !66 = distinct !DILexicalBlock(line: 47, column: 0, file: !5, scope: !13)
    339 !67 = !{}
    340 !68 = !DILocation(line: 49, scope: !69)
    341 !69 = distinct !DILexicalBlock(line: 48, column: 0, file: !5, scope: !66)
    342 !70 = !DILocation(line: 53, scope: !69)
    343 !71 = !DILocation(line: 54, scope: !66)
    344 !72 = !DILocalVariable(name: "block", line: 39, arg: 1, scope: !39, file: !6, type: !42)
    345 !73 = !DILocation(line: 39, scope: !39)
    346 !74 = !DILocation(line: 41, scope: !39)
    347 !75 = !DILocation(line: 42, scope: !39)
    348 !76 = !DILocalVariable(name: ".block_descriptor", line: 49, arg: 1, flags: DIFlagArtificial, scope: !27, file: !6, type: !77)
    349 !77 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !78)
    350 !78 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_literal_1", line: 49, size: 320, align: 64, file: !5, scope: !6, elements: !79)
    351 !79 = !{!80, !81, !82, !83, !84, !87}
    352 !80 = !DIDerivedType(tag: DW_TAG_member, name: "__isa", line: 49, size: 64, align: 64, file: !5, scope: !6, baseType: !30)
    353 !81 = !DIDerivedType(tag: DW_TAG_member, name: "__flags", line: 49, size: 32, align: 32, offset: 64, file: !5, scope: !6, baseType: !11)
    354 !82 = !DIDerivedType(tag: DW_TAG_member, name: "__reserved", line: 49, size: 32, align: 32, offset: 96, file: !5, scope: !6, baseType: !11)
    355 !83 = !DIDerivedType(tag: DW_TAG_member, name: "__FuncPtr", line: 49, size: 64, align: 64, offset: 128, file: !5, scope: !6, baseType: !30)
    356 !84 = !DIDerivedType(tag: DW_TAG_member, name: "__descriptor", line: 49, size: 64, align: 64, offset: 192, file: !5, scope: !6, baseType: !85)
    357 !85 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !86)
    358 !86 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_descriptor_withcopydispose", line: 49, flags: DIFlagFwdDecl, file: !1)
    359 !87 = !DIDerivedType(tag: DW_TAG_member, name: "self", line: 49, size: 64, align: 64, offset: 256, file: !5, scope: !6, baseType: !61)
    360 !88 = !DILocation(line: 49, scope: !27)
    361 !89 = !DILocalVariable(name: "self", line: 52, scope: !27, file: !32, type: !23)
    362 !90 = !DILocation(line: 52, scope: !27)
    363 !91 = !DILocalVariable(name: "d", line: 50, scope: !92, file: !6, type: !93)
    364 !92 = distinct !DILexicalBlock(line: 49, column: 0, file: !5, scope: !27)
    365 !93 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !94)
    366 !94 = !DICompositeType(tag: DW_TAG_structure_type, name: "NSMutableDictionary", line: 30, align: 8, runtimeLang: DW_LANG_ObjC, file: !5, scope: !6, elements: !95)
    367 !95 = !{!96}
    368 !96 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !94, baseType: !97)
    369 !97 = !DICompositeType(tag: DW_TAG_structure_type, name: "NSDictionary", line: 26, align: 8, runtimeLang: DW_LANG_ObjC, file: !5, scope: !6, elements: !98)
    370 !98 = !{!99}
    371 !99 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !97, baseType: !9)
    372 !100 = !DILocation(line: 50, scope: !92)
    373 !101 = !DILocation(line: 51, scope: !92)
    374 !102 = !DILocalVariable(name: "", line: 52, arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !31, file: !32, type: !30)
    375 !103 = !DILocation(line: 52, scope: !31)
    376 !104 = !DILocalVariable(name: "", line: 52, arg: 2, flags: DIFlagArtificial, scope: !31, file: !32, type: !30)
    377 !105 = !DILocalVariable(name: "", line: 52, arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !35, file: !32, type: !30)
    378 !106 = !DILocation(line: 52, scope: !35)
    379 !107 = !DILocalVariable(name: "a", line: 61, scope: !36, file: !6, type: !61)
    380 !108 = !DILocation(line: 61, scope: !36)
    381 !109 = !DILocation(line: 62, scope: !36)
    382 !110 = !{i32 1, !"Debug Info Version", i32 3}
    383 !111 = !DIExpression(DW_OP_deref, DW_OP_plus, 32)
    384