1 ; RUN: llc -filetype=obj -O0 < %s
2 ; Test that we handle DBG_VALUEs in a register without crashing.
4 ; Generated from clang with -fsanitize=address:
15 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"
16 target triple = "x86_64-unknown-linux-gnu"
18 %struct.A = type { i8 }
20 @__asan_mapping_offset = linkonce_odr constant i64 2147450880
21 @__asan_mapping_scale = linkonce_odr constant i64 3
22 @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 1, void ()* @asan.module_ctor, i8* null }]
23 @___asan_gen_ = private unnamed_addr constant [16 x i8] c"1 32 4 5 .addr \00", align 1
25 ; Function Attrs: sanitize_address uwtable
26 define void @_Z4funci(%struct.A* noalias sret %agg.result, i32) #0 "stack-protector-buffer-size"="1" !dbg !4 {
28 %MyAlloca = alloca [96 x i8], align 32
29 %1 = ptrtoint [96 x i8]* %MyAlloca to i64
31 %3 = inttoptr i64 %2 to i32*
32 %4 = inttoptr i64 %1 to i64*
33 store i64 1102416563, i64* %4
35 %6 = inttoptr i64 %5 to i64*
36 store i64 ptrtoint ([16 x i8]* @___asan_gen_ to i64), i64* %6
38 %8 = inttoptr i64 %7 to i64*
39 store i64 ptrtoint (void (%struct.A*, i32)* @_Z4funci to i64), i64* %8
41 %10 = add i64 %9, 2147450880
42 %11 = inttoptr i64 %10 to i32*
43 store i32 -235802127, i32* %11
45 %13 = inttoptr i64 %12 to i32*
46 store i32 -185273340, i32* %13
48 %15 = inttoptr i64 %14 to i32*
49 store i32 -202116109, i32* %15
50 %16 = ptrtoint i32* %3 to i64
52 %18 = add i64 %17, 2147450880
53 %19 = inttoptr i64 %18 to i8*
54 %20 = load i8, i8* %19
55 %21 = icmp ne i8 %20, 0
56 call void @llvm.dbg.declare(metadata i32* %3, metadata !23, metadata !28), !dbg !DILocation(scope: !4)
57 br i1 %21, label %22, label %28
59 ; <label>:22 ; preds = %entry
62 %25 = trunc i64 %24 to i8
63 %26 = icmp sge i8 %25, %20
64 br i1 %26, label %27, label %28
66 ; <label>:27 ; preds = %22
67 call void @__asan_report_store4(i64 %16)
68 call void asm sideeffect "", ""()
71 ; <label>:28 ; preds = %22, %entry
72 store i32 %0, i32* %3, align 4
73 call void @llvm.dbg.declare(metadata %struct.A* %agg.result, metadata !24, metadata !DIExpression()), !dbg !25
74 call void @_ZN1AC1Ev(%struct.A* %agg.result), !dbg !25
75 store i64 1172321806, i64* %4, !dbg !26
76 %29 = inttoptr i64 %10 to i32*, !dbg !26
77 store i32 0, i32* %29, !dbg !26
78 %30 = add i64 %10, 4, !dbg !26
79 %31 = inttoptr i64 %30 to i32*, !dbg !26
80 store i32 0, i32* %31, !dbg !26
81 %32 = add i64 %10, 8, !dbg !26
82 %33 = inttoptr i64 %32 to i32*, !dbg !26
83 store i32 0, i32* %33, !dbg !26
87 ; Function Attrs: nounwind readnone
88 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
90 declare void @_ZN1AC1Ev(%struct.A*) #2
92 define internal void @asan.module_ctor() "stack-protector-buffer-size"="1" {
93 call void @__asan_init_v3()
94 %1 = load volatile i64, i64* @__asan_mapping_offset
95 %2 = load volatile i64, i64* @__asan_mapping_scale
99 declare void @__asan_init_v3()
101 declare void @__asan_report_load1(i64)
103 declare void @__asan_report_load2(i64)
105 declare void @__asan_report_load4(i64)
107 declare void @__asan_report_load8(i64)
109 declare void @__asan_report_load16(i64)
111 declare void @__asan_report_store1(i64)
113 declare void @__asan_report_store2(i64)
115 declare void @__asan_report_store4(i64)
117 declare void @__asan_report_store8(i64)
119 declare void @__asan_report_store16(i64)
121 declare void @__asan_report_load_n(i64, i64)
123 declare void @__asan_report_store_n(i64, i64)
125 declare void @__asan_handle_no_return()
127 declare i64 @__asan_stack_malloc(i64, i64)
129 declare void @__asan_stack_free(i64, i64, i64)
131 declare void @__asan_poison_stack_memory(i64, i64)
133 declare void @__asan_unpoison_stack_memory(i64, i64)
135 declare void @__asan_before_dynamic_init(i64)
137 declare void @__asan_after_dynamic_init()
139 declare void @__asan_register_globals(i64, i64)
141 declare void @__asan_unregister_globals(i64, i64)
143 attributes #0 = { sanitize_address uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "ssp-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
144 attributes #1 = { nounwind readnone }
145 attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "ssp-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
148 !llvm.module.flags = !{!22, !27}
150 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
151 !1 = !DIFile(filename: "crash.cpp", directory: "/tmp")
153 !4 = distinct !DISubprogram(name: "func", linkageName: "_Z4funci", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 6, file: !1, scope: !5, type: !6, retainedNodes: !2)
154 !5 = !DIFile(filename: "crash.cpp", directory: "/tmp")
155 !6 = !DISubroutineType(types: !7)
157 !8 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", line: 1, size: 8, align: 8, file: !1, elements: !9)
159 !10 = !DISubprogram(name: "A", line: 2, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !8, type: !11)
160 !11 = !DISubroutineType(types: !12)
162 !13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !8)
163 !15 = !DISubprogram(name: "A", line: 3, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !8, type: !16)
164 !16 = !DISubroutineType(types: !17)
165 !17 = !{null, !13, !18}
166 !18 = !DIDerivedType(tag: DW_TAG_reference_type, baseType: !19)
167 !19 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !8)
168 !21 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
169 !22 = !{i32 2, !"Dwarf Version", i32 3}
170 !23 = !DILocalVariable(name: "", line: 6, arg: 1, scope: !4, file: !5, type: !21)
171 !24 = !DILocalVariable(name: "a", line: 7, scope: !4, file: !5, type: !8)
172 !25 = !DILocation(line: 7, scope: !4)
173 !26 = !DILocation(line: 8, scope: !4)
174 !27 = !{i32 1, !"Debug Info Version", i32 3}
175 !28 = !DIExpression(DW_OP_deref)