1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 5
// RUN: %clang_cc1 -emit-llvm -fdebug-prefix-map=%S/= -fno-ident -fdebug-compilation-dir=%S -fsanitize=array-bounds -fsanitize-trap=array-bounds -fsanitize-annotate-debug-info=array-bounds -triple x86_64 -debug-info-kind=limited %s -o - | FileCheck --check-prefix=CHECK-TRAP %s
// RUN: %clang_cc1 -emit-llvm -fdebug-prefix-map=%S/= -fno-ident -fdebug-compilation-dir=%S -fsanitize=array-bounds -fsanitize-annotate-debug-info=array-bounds -triple x86_64 -debug-info-kind=limited %s -o - | FileCheck --check-prefix=CHECK-NOTRAP %s
int f();
void d(double*);
// CHECK-LABEL: @f1
// CHECK-TRAP-LABEL: define dso_local double @f1(
// CHECK-TRAP-SAME: i32 noundef [[B:%.*]], i32 noundef [[I:%.*]]) #[[ATTR0:[0-9]+]] !dbg [[DBG4:![0-9]+]] {
// CHECK-TRAP-NEXT: [[ENTRY:.*:]]
// CHECK-TRAP-NEXT: [[B_ADDR:%.*]] = alloca i32, align 4
// CHECK-TRAP-NEXT: [[I_ADDR:%.*]] = alloca i32, align 4
// CHECK-TRAP-NEXT: [[A:%.*]] = alloca [10 x double], align 16
// CHECK-TRAP-NEXT: store i32 [[B]], ptr [[B_ADDR]], align 4
// CHECK-TRAP-NEXT: #dbg_declare(ptr [[B_ADDR]], [[META11:![0-9]+]], !DIExpression(), [[META12:![0-9]+]])
// CHECK-TRAP-NEXT: store i32 [[I]], ptr [[I_ADDR]], align 4
// CHECK-TRAP-NEXT: #dbg_declare(ptr [[I_ADDR]], [[META13:![0-9]+]], !DIExpression(), [[META14:![0-9]+]])
// CHECK-TRAP-NEXT: #dbg_declare(ptr [[A]], [[META15:![0-9]+]], !DIExpression(), [[META19:![0-9]+]])
// CHECK-TRAP-NEXT: [[ARRAYDECAY:%.*]] = getelementptr inbounds [10 x double], ptr [[A]], i64 0, i64 0, !dbg [[DBG20:![0-9]+]]
// CHECK-TRAP-NEXT: call void @d(ptr noundef [[ARRAYDECAY]]), !dbg [[DBG21:![0-9]+]]
// CHECK-TRAP-NEXT: [[CALL:%.*]] = call i32 (...) @f(), !dbg [[DBG22:![0-9]+]]
// CHECK-TRAP-NEXT: [[TMP0:%.*]] = sext i32 [[CALL]] to i64, !dbg [[DBG23:![0-9]+]], !nosanitize [[META10:![0-9]+]]
// CHECK-TRAP-NEXT: [[TMP1:%.*]] = icmp ult i64 [[TMP0]], 10, !dbg [[DBG23]], !nosanitize [[META10]]
// CHECK-TRAP-NEXT: br i1 [[TMP1]], label %[[CONT:.*]], label %[[TRAP:.*]], !dbg [[DBG23]], !prof [[PROF27:![0-9]+]], !nosanitize [[META10]]
// CHECK-TRAP: [[TRAP]]:
// CHECK-TRAP-NEXT: call void @llvm.ubsantrap(i8 18) #[[ATTR3:[0-9]+]], !dbg [[DBGTRAP:![0-9]+]], !nosanitize [[META10]]
// CHECK-TRAP-NEXT: unreachable, !dbg [[DBGTRAP]], !nosanitize [[META10]]
// CHECK-TRAP: [[CONT]]:
// CHECK-TRAP-NEXT: [[IDXPROM:%.*]] = sext i32 [[CALL]] to i64, !dbg [[DBG26:![0-9]+]]
// CHECK-TRAP-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [10 x double], ptr [[A]], i64 0, i64 [[IDXPROM]], !dbg [[DBG26]]
// CHECK-TRAP-NEXT: [[TMP2:%.*]] = load double, ptr [[ARRAYIDX]], align 8, !dbg [[DBG26]]
// CHECK-TRAP-NEXT: ret double [[TMP2]], !dbg [[DBG30:![0-9]+]]
//
// CHECK-NOTRAP-LABEL: define dso_local double @f1(
// CHECK-NOTRAP-SAME: i32 noundef [[B:%.*]], i32 noundef [[I:%.*]]) #[[ATTR0:[0-9]+]] !dbg [[DBG4:![0-9]+]] {
// CHECK-NOTRAP-NEXT: [[ENTRY:.*:]]
// CHECK-NOTRAP-NEXT: [[B_ADDR:%.*]] = alloca i32, align 4
// CHECK-NOTRAP-NEXT: [[I_ADDR:%.*]] = alloca i32, align 4
// CHECK-NOTRAP-NEXT: [[A:%.*]] = alloca [10 x double], align 16
// CHECK-NOTRAP-NEXT: store i32 [[B]], ptr [[B_ADDR]], align 4
// CHECK-NOTRAP-NEXT: #dbg_declare(ptr [[B_ADDR]], [[META11:![0-9]+]], !DIExpression(), [[META12:![0-9]+]])
// CHECK-NOTRAP-NEXT: store i32 [[I]], ptr [[I_ADDR]], align 4
// CHECK-NOTRAP-NEXT: #dbg_declare(ptr [[I_ADDR]], [[META13:![0-9]+]], !DIExpression(), [[META14:![0-9]+]])
// CHECK-NOTRAP-NEXT: #dbg_declare(ptr [[A]], [[META15:![0-9]+]], !DIExpression(), [[META19:![0-9]+]])
// CHECK-NOTRAP-NEXT: [[ARRAYDECAY:%.*]] = getelementptr inbounds [10 x double], ptr [[A]], i64 0, i64 0, !dbg [[DBG20:![0-9]+]]
// CHECK-NOTRAP-NEXT: call void @d(ptr noundef [[ARRAYDECAY]]), !dbg [[DBG21:![0-9]+]]
// CHECK-NOTRAP-NEXT: [[CALL:%.*]] = call i32 (...) @f(), !dbg [[DBG22:![0-9]+]]
// CHECK-NOTRAP-NEXT: [[TMP0:%.*]] = sext i32 [[CALL]] to i64, !dbg [[DBG23:![0-9]+]], !nosanitize [[META10:![0-9]+]]
// CHECK-NOTRAP-NEXT: [[TMP1:%.*]] = icmp ult i64 [[TMP0]], 10, !dbg [[DBG23]], !nosanitize [[META10]]
// CHECK-NOTRAP-NEXT: br i1 [[TMP1]], label %[[CONT:.*]], label %[[HANDLER_OUT_OF_BOUNDS:.*]], !dbg [[DBG23]], !prof [[PROF27:![0-9]+]], !nosanitize [[META10]]
// CHECK-NOTRAP: [[HANDLER_OUT_OF_BOUNDS]]:
// CHECK-NOTRAP-NEXT: [[TMP2:%.*]] = zext i32 [[CALL]] to i64, !dbg [[DBG23]], !nosanitize [[META10]]
// CHECK-NOTRAP-NEXT: call void @__ubsan_handle_out_of_bounds_abort(ptr @[[GLOB2:[0-9]+]], i64 [[TMP2]]) #[[ATTR3:[0-9]+]], !dbg [[DBG23]], !nosanitize [[META10]]
// CHECK-NOTRAP-NEXT: unreachable, !dbg [[DBG23]], !nosanitize [[META10]]
// CHECK-NOTRAP: [[CONT]]:
// CHECK-NOTRAP-NEXT: [[IDXPROM:%.*]] = sext i32 [[CALL]] to i64, !dbg [[DBG26:![0-9]+]]
// CHECK-NOTRAP-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [10 x double], ptr [[A]], i64 0, i64 [[IDXPROM]], !dbg [[DBG26]]
// CHECK-NOTRAP-NEXT: [[TMP3:%.*]] = load double, ptr [[ARRAYIDX]], align 8, !dbg [[DBG26]]
// CHECK-NOTRAP-NEXT: ret double [[TMP3]], !dbg [[DBG28:![0-9]+]]
//
double f1(int b, int i) {
double a[10];
d(a);
return a[f()];
}
//.
// CHECK-TRAP: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C11, file: [[META1:![0-9]+]], isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
// CHECK-TRAP: [[META1]] = !DIFile(filename: "<stdin>", directory: {{.*}})
// CHECK-TRAP: [[DBG4]] = distinct !DISubprogram(name: "f1", scope: [[META5:![0-9]+]], file: [[META5]], line: 63, type: [[META6:![0-9]+]], scopeLine: 63, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: [[META0]], retainedNodes: [[META10]])
// CHECK-TRAP: [[META5]] = !DIFile(filename: "bounds-checking-debuginfo.c", directory: {{.*}})
// CHECK-TRAP: [[META6]] = !DISubroutineType(types: [[META7:![0-9]+]])
// CHECK-TRAP: [[META7]] = !{[[META8:![0-9]+]], [[META9:![0-9]+]], [[META9]]}
// CHECK-TRAP: [[META8]] = !DIBasicType(name: "double", size: 64, encoding: DW_ATE_float)
// CHECK-TRAP: [[META9]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
// CHECK-TRAP: [[META10]] = !{}
// CHECK-TRAP: [[META11]] = !DILocalVariable(name: "b", arg: 1, scope: [[DBG4]], file: [[META5]], line: 63, type: [[META9]])
// CHECK-TRAP: [[META12]] = !DILocation(line: 63, column: 15, scope: [[DBG4]])
// CHECK-TRAP: [[META13]] = !DILocalVariable(name: "i", arg: 2, scope: [[DBG4]], file: [[META5]], line: 63, type: [[META9]])
// CHECK-TRAP: [[META14]] = !DILocation(line: 63, column: 22, scope: [[DBG4]])
// CHECK-TRAP: [[META15]] = !DILocalVariable(name: "a", scope: [[DBG4]], file: [[META5]], line: 64, type: [[META16:![0-9]+]])
// CHECK-TRAP: [[META16]] = !DICompositeType(tag: DW_TAG_array_type, baseType: [[META8]], size: 640, elements: [[META17:![0-9]+]])
// CHECK-TRAP: [[META17]] = !{[[META18:![0-9]+]]}
// CHECK-TRAP: [[META18]] = !DISubrange(count: 10)
// CHECK-TRAP: [[META19]] = !DILocation(line: 64, column: 10, scope: [[DBG4]])
// CHECK-TRAP: [[DBG20]] = !DILocation(line: 65, column: 5, scope: [[DBG4]])
// CHECK-TRAP: [[DBG21]] = !DILocation(line: 65, column: 3, scope: [[DBG4]])
// CHECK-TRAP: [[DBG22]] = !DILocation(line: 66, column: 12, scope: [[DBG4]])
// CHECK-TRAP: [[DBG23]] = !DILocation(line: 0, scope: [[META24:![0-9]+]], inlinedAt: [[DBG26]])
// CHECK-TRAP: [[META24]] = distinct !DISubprogram(name: "__ubsan_check_array_bounds", scope: [[META5]], file: [[META5]], type: [[META25:![0-9]+]], flags: DIFlagArtificial, spFlags: DISPFlagDefinition, unit: [[META0]])
// CHECK-TRAP: [[META25]] = !DISubroutineType(types: null)
// CHECK-TRAP: [[DBG26]] = !DILocation(line: 66, column: 10, scope: [[DBG4]])
// CHECK-TRAP: [[PROF27]] = !{!"branch_weights", i32 1048575, i32 1}
// CHECK-TRAP: [[DBGTRAP]] = !DILocation(line: 0, scope: [[TRAPMSG:![0-9]+]], inlinedAt: [[DBG23]])
// CHECK-TRAP: [[TRAPMSG]] = distinct !DISubprogram(name: "__clang_trap_msg$Undefined Behavior Sanitizer$Array index out of bounds", scope: [[META5]], file: [[META5]], type: [[META25]], flags: DIFlagArtificial, spFlags: DISPFlagDefinition, unit: [[META0]])
// CHECK-TRAP: [[DBG30]] = !DILocation(line: 66, column: 3, scope: [[DBG4]])
//.
// CHECK-NOTRAP: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C11, file: [[META1:![0-9]+]], isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
// CHECK-NOTRAP: [[META1]] = !DIFile(filename: "<stdin>", directory: {{.*}})
// CHECK-NOTRAP: [[DBG4]] = distinct !DISubprogram(name: "f1", scope: [[META5:![0-9]+]], file: [[META5]], line: 63, type: [[META6:![0-9]+]], scopeLine: 63, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: [[META0]], retainedNodes: [[META10]])
// CHECK-NOTRAP: [[META5]] = !DIFile(filename: "bounds-checking-debuginfo.c", directory: {{.*}})
// CHECK-NOTRAP: [[META6]] = !DISubroutineType(types: [[META7:![0-9]+]])
// CHECK-NOTRAP: [[META7]] = !{[[META8:![0-9]+]], [[META9:![0-9]+]], [[META9]]}
// CHECK-NOTRAP: [[META8]] = !DIBasicType(name: "double", size: 64, encoding: DW_ATE_float)
// CHECK-NOTRAP: [[META9]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
// CHECK-NOTRAP: [[META10]] = !{}
// CHECK-NOTRAP: [[META11]] = !DILocalVariable(name: "b", arg: 1, scope: [[DBG4]], file: [[META5]], line: 63, type: [[META9]])
// CHECK-NOTRAP: [[META12]] = !DILocation(line: 63, column: 15, scope: [[DBG4]])
// CHECK-NOTRAP: [[META13]] = !DILocalVariable(name: "i", arg: 2, scope: [[DBG4]], file: [[META5]], line: 63, type: [[META9]])
// CHECK-NOTRAP: [[META14]] = !DILocation(line: 63, column: 22, scope: [[DBG4]])
// CHECK-NOTRAP: [[META15]] = !DILocalVariable(name: "a", scope: [[DBG4]], file: [[META5]], line: 64, type: [[META16:![0-9]+]])
// CHECK-NOTRAP: [[META16]] = !DICompositeType(tag: DW_TAG_array_type, baseType: [[META8]], size: 640, elements: [[META17:![0-9]+]])
// CHECK-NOTRAP: [[META17]] = !{[[META18:![0-9]+]]}
// CHECK-NOTRAP: [[META18]] = !DISubrange(count: 10)
// CHECK-NOTRAP: [[META19]] = !DILocation(line: 64, column: 10, scope: [[DBG4]])
// CHECK-NOTRAP: [[DBG20]] = !DILocation(line: 65, column: 5, scope: [[DBG4]])
// CHECK-NOTRAP: [[DBG21]] = !DILocation(line: 65, column: 3, scope: [[DBG4]])
// CHECK-NOTRAP: [[DBG22]] = !DILocation(line: 66, column: 12, scope: [[DBG4]])
// CHECK-NOTRAP: [[DBG23]] = !DILocation(line: 0, scope: [[META24:![0-9]+]], inlinedAt: [[DBG26]])
// CHECK-NOTRAP: [[META24]] = distinct !DISubprogram(name: "__ubsan_check_array_bounds", scope: [[META5]], file: [[META5]], type: [[META25:![0-9]+]], flags: DIFlagArtificial, spFlags: DISPFlagDefinition, unit: [[META0]])
// CHECK-NOTRAP: [[META25]] = !DISubroutineType(types: null)
// CHECK-NOTRAP: [[DBG26]] = !DILocation(line: 66, column: 10, scope: [[DBG4]])
// CHECK-NOTRAP: [[PROF27]] = !{!"branch_weights", i32 1048575, i32 1}
// CHECK-NOTRAP: [[DBG28]] = !DILocation(line: 66, column: 3, scope: [[DBG4]])
//.
|
