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[clang] Handle __declspec() attributes in using
[llvm-project.git] / clang / test / CodeGen / catch-pointer-overflow.c
blob899af73bd81e0096f10550f0ee3ba252ccb92b0f
1 // RUN: %clang_cc1 -x c -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s
2 // RUN: %clang_cc1 -x c -fsanitize=pointer-overflow -fno-sanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-C,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER,CHECK-SANITIZE-UNREACHABLE
3 // RUN: %clang_cc1 -x c -fsanitize=pointer-overflow -fsanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-C,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER
4 // RUN: %clang_cc1 -x c -fsanitize=pointer-overflow -fsanitize-trap=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-C,CHECK-SANITIZE-TRAP,CHECK-SANITIZE-UNREACHABLE
5
6 // RUN: %clang_cc1 -x c++ -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s
7 // RUN: %clang_cc1 -x c++ -fsanitize=pointer-overflow -fno-sanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-CPP,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER,CHECK-SANITIZE-UNREACHABLE
8 // RUN: %clang_cc1 -x c++ -fsanitize=pointer-overflow -fsanitize-recover=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-CPP,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER
9 // RUN: %clang_cc1 -x c++ -fsanitize=pointer-overflow -fsanitize-trap=pointer-overflow -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_pointer_overflow" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-CPP,CHECK-SANITIZE-TRAP,CHECK-SANITIZE-UNREACHABLE
10
11 // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_100:.*]] = {{.*}}, i32 100, i32 15 } }
12 // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_200:.*]] = {{.*}}, i32 200, i32 15 } }
13 // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_300:.*]] = {{.*}}, i32 300, i32 15 } }
14 // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_400:.*]] = {{.*}}, i32 400, i32 15 } }
15 // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_500:.*]] = {{.*}}, i32 500, i32 7 } }
16 // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_600:.*]] = {{.*}}, i32 600, i32 7 } }
17 // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_700:.*]] = {{.*}}, i32 700, i32 3 } }
18 // CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_800:.*]] = {{.*}}, i32 800, i32 3 } }
19
20 #ifdef __cplusplus
21 extern "C" {
22 #endif
23
24 char *add_unsigned(char *base, unsigned long offset) {
25 // CHECK: define{{.*}} ptr @add_unsigned(ptr noundef %[[BASE:.*]], i64 noundef %[[OFFSET:.*]])
26 // CHECK-NEXT: [[ENTRY:.*]]:
27 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca ptr, align 8
28 // CHECK-NEXT: %[[OFFSET_ADDR:.*]] = alloca i64, align 8
29 // CHECK-NEXT: store ptr %[[BASE]], ptr %[[BASE_ADDR]], align 8
30 // CHECK-NEXT: store i64 %[[OFFSET]], ptr %[[OFFSET_ADDR]], align 8
31 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load ptr, ptr %[[BASE_ADDR]], align 8
32 // CHECK-NEXT: %[[OFFSET_RELOADED:.*]] = load i64, ptr %[[OFFSET_ADDR]], align 8
33 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, ptr %[[BASE_RELOADED]], i64 %[[OFFSET_RELOADED]]
34 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_AGGREGATE:.*]] = call { i64, i1 } @llvm.smul.with.overflow.i64(i64 1, i64 %[[OFFSET_RELOADED]]), !nosanitize
35 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_OVERFLOWED:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 1, !nosanitize
36 // CHECK-SANITIZE-NEXT: %[[OR_OV:.+]] = or i1 %[[COMPUTED_OFFSET_OVERFLOWED]], false, !nosanitize
37 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 0, !nosanitize
38 // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint ptr %[[BASE_RELOADED]] to i64, !nosanitize
39 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], %[[COMPUTED_OFFSET]], !nosanitize
40 // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne ptr %[[BASE_RELOADED]], null, !nosanitize
41 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize
42 // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
43 // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
44 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW:.*]] = xor i1 %[[OR_OV]], true, !nosanitize
45 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_UGE_BASE:.*]] = icmp uge i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize
46 // CHECK-SANITIZE-NEXT: %[[GEP_DID_NOT_OVERFLOW:.*]] = and i1 %[[COMPUTED_GEP_IS_UGE_BASE]], %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW]], !nosanitize
47 // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[GEP_DID_NOT_OVERFLOW]], !nosanitize
48 // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize
49 // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]:
50 // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(ptr @[[LINE_100]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
51 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(ptr @[[LINE_100]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
52 // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize
53 // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
54 // CHECK-SANITIZE: [[CONT]]:
55 // CHECK-NEXT: ret ptr %[[ADD_PTR]]
56 #line 100
57 return base + offset;
58 }
59
60 char *sub_unsigned(char *base, unsigned long offset) {
61 // CHECK: define{{.*}} ptr @sub_unsigned(ptr noundef %[[BASE:.*]], i64 noundef %[[OFFSET:.*]])
62 // CHECK-NEXT: [[ENTRY:.*]]:
63 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca ptr, align 8
64 // CHECK-NEXT: %[[OFFSET_ADDR:.*]] = alloca i64, align 8
65 // CHECK-NEXT: store ptr %[[BASE]], ptr %[[BASE_ADDR]], align 8
66 // CHECK-NEXT: store i64 %[[OFFSET]], ptr %[[OFFSET_ADDR]], align 8
67 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load ptr, ptr %[[BASE_ADDR]], align 8
68 // CHECK-NEXT: %[[OFFSET_RELOADED:.*]] = load i64, ptr %[[OFFSET_ADDR]], align 8
69 // CHECK-NEXT: %[[IDX_NEG:.*]] = sub i64 0, %[[OFFSET_RELOADED]]
70 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, ptr %[[BASE_RELOADED]], i64 %[[IDX_NEG]]
71 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_AGGREGATE:.*]] = call { i64, i1 } @llvm.smul.with.overflow.i64(i64 1, i64 %[[IDX_NEG]]), !nosanitize
72 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_OVERFLOWED:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 1, !nosanitize
73 // CHECK-SANITIZE-NEXT: %[[OR_OV:.+]] = or i1 %[[COMPUTED_OFFSET_OVERFLOWED]], false, !nosanitize
74 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 0, !nosanitize
75 // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint ptr %[[BASE_RELOADED]] to i64, !nosanitize
76 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], %[[COMPUTED_OFFSET]], !nosanitize
77 // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne ptr %[[BASE_RELOADED]], null, !nosanitize
78 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize
79 // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
80 // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
81 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW:.*]] = xor i1 %[[OR_OV]], true, !nosanitize
82 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_ULE_BASE:.*]] = icmp ule i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize
83 // CHECK-SANITIZE-NEXT: %[[GEP_DID_NOT_OVERFLOW:.*]] = and i1 %[[COMPUTED_GEP_IS_ULE_BASE]], %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW]], !nosanitize
84 // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[GEP_DID_NOT_OVERFLOW]], !nosanitize
85 // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize
86 // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]:
87 // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(ptr @[[LINE_200]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
88 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(ptr @[[LINE_200]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
89 // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize
90 // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
91 // CHECK-SANITIZE: [[CONT]]:
92 // CHECK-NEXT: ret ptr %[[ADD_PTR]]
93 #line 200
94 return base - offset;
95 }
96
97 char *add_signed(char *base, signed long offset) {
98 // CHECK: define{{.*}} ptr @add_signed(ptr noundef %[[BASE:.*]], i64 noundef %[[OFFSET:.*]])
99 // CHECK-NEXT: [[ENTRY:.*]]:
100 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca ptr, align 8
101 // CHECK-NEXT: %[[OFFSET_ADDR:.*]] = alloca i64, align 8
102 // CHECK-NEXT: store ptr %[[BASE]], ptr %[[BASE_ADDR]], align 8
103 // CHECK-NEXT: store i64 %[[OFFSET]], ptr %[[OFFSET_ADDR]], align 8
104 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load ptr, ptr %[[BASE_ADDR]], align 8
105 // CHECK-NEXT: %[[OFFSET_RELOADED:.*]] = load i64, ptr %[[OFFSET_ADDR]], align 8
106 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, ptr %[[BASE_RELOADED]], i64 %[[OFFSET_RELOADED]]
107 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_AGGREGATE:.*]] = call { i64, i1 } @llvm.smul.with.overflow.i64(i64 1, i64 %[[OFFSET_RELOADED]]), !nosanitize
108 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_OVERFLOWED:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 1, !nosanitize
109 // CHECK-SANITIZE-NEXT: %[[OR_OV:.+]] = or i1 %[[COMPUTED_OFFSET_OVERFLOWED]], false, !nosanitize
110 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 0, !nosanitize
111 // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint ptr %[[BASE_RELOADED]] to i64, !nosanitize
112 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], %[[COMPUTED_OFFSET]], !nosanitize
113 // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne ptr %[[BASE_RELOADED]], null, !nosanitize
114 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize
115 // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
116 // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
117 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW:.*]] = xor i1 %[[OR_OV]], true, !nosanitize
118 // CHECK-SANITIZE-NEXT: %[[POSORZEROVALID:.*]] = icmp uge i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize
119 // CHECK-SANITIZE-NEXT: %[[POSORZEROOFFSET:.*]] = icmp sge i64 %[[COMPUTED_OFFSET]], 0, !nosanitize
120 // CHECK-SANITIZE-NEXT: %[[NEGVALID:.*]] = icmp ult i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize
121 // CHECK-SANITIZE-NEXT: %[[APPLYING_OFFSET_DID_NOT_OVERFLOW:.*]] = select i1 %[[POSORZEROOFFSET]], i1 %[[POSORZEROVALID]], i1 %[[NEGVALID]], !nosanitize
122 // CHECK-SANITIZE-NEXT: %[[GEP_DID_NOT_OVERFLOW:.*]] = and i1 %[[APPLYING_OFFSET_DID_NOT_OVERFLOW]], %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW]], !nosanitize
123 // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[GEP_DID_NOT_OVERFLOW]], !nosanitize
124 // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize
125 // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]:
126 // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(ptr @[[LINE_300]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
127 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(ptr @[[LINE_300]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
128 // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize
129 // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
130 // CHECK-SANITIZE: [[CONT]]:
131 // CHECK-NEXT: ret ptr %[[ADD_PTR]]
132 #line 300
133 return base + offset;
134 }
135
136 char *sub_signed(char *base, signed long offset) {
137 // CHECK: define{{.*}} ptr @sub_signed(ptr noundef %[[BASE:.*]], i64 noundef %[[OFFSET:.*]])
138 // CHECK-NEXT: [[ENTRY:.*]]:
139 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca ptr, align 8
140 // CHECK-NEXT: %[[OFFSET_ADDR:.*]] = alloca i64, align 8
141 // CHECK-NEXT: store ptr %[[BASE]], ptr %[[BASE_ADDR]], align 8
142 // CHECK-NEXT: store i64 %[[OFFSET]], ptr %[[OFFSET_ADDR]], align 8
143 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load ptr, ptr %[[BASE_ADDR]], align 8
144 // CHECK-NEXT: %[[OFFSET_RELOADED:.*]] = load i64, ptr %[[OFFSET_ADDR]], align 8
145 // CHECK-NEXT: %[[IDX_NEG:.*]] = sub i64 0, %[[OFFSET_RELOADED]]
146 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, ptr %[[BASE_RELOADED]], i64 %[[IDX_NEG]]
147 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_AGGREGATE:.*]] = call { i64, i1 } @llvm.smul.with.overflow.i64(i64 1, i64 %[[IDX_NEG]]), !nosanitize
148 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_OVERFLOWED:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 1, !nosanitize
149 // CHECK-SANITIZE-NEXT: %[[OR_OV:.+]] = or i1 %[[COMPUTED_OFFSET_OVERFLOWED]], false, !nosanitize
150 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET:.*]] = extractvalue { i64, i1 } %[[COMPUTED_OFFSET_AGGREGATE]], 0, !nosanitize
151 // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint ptr %[[BASE_RELOADED]] to i64, !nosanitize
152 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], %[[COMPUTED_OFFSET]], !nosanitize
153 // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne ptr %[[BASE_RELOADED]], null, !nosanitize
154 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize
155 // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
156 // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
157 // CHECK-SANITIZE-NEXT: %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW:.*]] = xor i1 %[[OR_OV]], true, !nosanitize
158 // CHECK-SANITIZE-NEXT: %[[POSORZEROVALID:.*]] = icmp uge i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize
159 // CHECK-SANITIZE-NEXT: %[[POSORZEROOFFSET:.*]] = icmp sge i64 %[[COMPUTED_OFFSET]], 0, !nosanitize
160 // CHECK-SANITIZE-NEXT: %[[NEGVALID:.*]] = icmp ult i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize
161 // CHECK-SANITIZE-NEXT: %[[APPLYING_OFFSET_DID_NOT_OVERFLOW:.*]] = select i1 %[[POSORZEROOFFSET]], i1 %[[POSORZEROVALID]], i1 %[[NEGVALID]], !nosanitize
162 // CHECK-SANITIZE-NEXT: %[[GEP_DID_NOT_OVERFLOW:.*]] = and i1 %[[APPLYING_OFFSET_DID_NOT_OVERFLOW]], %[[COMPUTED_OFFSET_DID_NOT_OVERFLOW]], !nosanitize
163 // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[GEP_DID_NOT_OVERFLOW]], !nosanitize
164 // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize
165 // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]:
166 // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(ptr @[[LINE_400]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
167 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(ptr @[[LINE_400]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
168 // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize
169 // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
170 // CHECK-SANITIZE: [[CONT]]:
171 // CHECK-NEXT: ret ptr %[[ADD_PTR]]
172 #line 400
173 return base - offset;
174 }
175
176 char *postinc(char *base) {
177 // CHECK: define{{.*}} ptr @postinc(ptr noundef %[[BASE:.*]])
178 // CHECK-NEXT: [[ENTRY:.*]]:
179 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca ptr, align 8
180 // CHECK-NEXT: store ptr %[[BASE]], ptr %[[BASE_ADDR]], align 8
181 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load ptr, ptr %[[BASE_ADDR]], align 8
182 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, ptr %[[BASE_RELOADED]], i32 1
183 // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint ptr %[[BASE_RELOADED]] to i64, !nosanitize
184 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], 1, !nosanitize
185 // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne ptr %[[BASE_RELOADED]], null, !nosanitize
186 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize
187 // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
188 // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
189 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_UGE_BASE:.*]] = icmp uge i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize
190 // CHECK-SANITIZE-NEXT: %[[AND_TRUE:.*]] = and i1 %[[COMPUTED_GEP_IS_UGE_BASE]], true, !nosanitize
191 // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[AND_TRUE]], !nosanitize
192 // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize
193 // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]:
194 // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(ptr @[[LINE_500]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
195 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(ptr @[[LINE_500]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
196 // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize
197 // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
198 // CHECK-SANITIZE: [[CONT]]:
199 // CHECK-NEXT: store ptr %[[ADD_PTR]], ptr %[[BASE_ADDR]], align 8
200 // CHECK-NEXT: %[[ADD_PTR_RELOADED:.*]] = load ptr, ptr %[[BASE_ADDR]], align 8
201 // CHECK-NEXT: ret ptr %[[ADD_PTR_RELOADED]]
202 #line 500
203 base++;
204 return base;
205 }
206
207 char *postdec(char *base) {
208 // CHECK: define{{.*}} ptr @postdec(ptr noundef %[[BASE:.*]])
209 // CHECK-NEXT: [[ENTRY:.*]]:
210 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca ptr, align 8
211 // CHECK-NEXT: store ptr %[[BASE]], ptr %[[BASE_ADDR]], align 8
212 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load ptr, ptr %[[BASE_ADDR]], align 8
213 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, ptr %[[BASE_RELOADED]], i32 -1
214 // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint ptr %[[BASE_RELOADED]] to i64, !nosanitize
215 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], -1, !nosanitize
216 // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne ptr %[[BASE_RELOADED]], null, !nosanitize
217 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize
218 // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
219 // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
220 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_ULE_BASE:.*]] = icmp ule i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize
221 // CHECK-SANITIZE-NEXT: %[[AND_TRUE:.*]] = and i1 %[[COMPUTED_GEP_IS_UGE_BASE]], true, !nosanitize
222 // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[AND_TRUE]], !nosanitize
223 // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize
224 // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]:
225 // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(ptr @[[LINE_600]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
226 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(ptr @[[LINE_600]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
227 // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize
228 // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
229 // CHECK-SANITIZE: [[CONT]]:
230 // CHECK-NEXT: store ptr %[[ADD_PTR]], ptr %[[BASE_ADDR]], align 8
231 // CHECK-NEXT: %[[ADD_PTR_RELOADED:.*]] = load ptr, ptr %[[BASE_ADDR]], align 8
232 // CHECK-NEXT: ret ptr %[[ADD_PTR_RELOADED]]
233 #line 600
234 base--;
235 return base;
236 }
237
238 char *preinc(char *base) {
239 // CHECK: define{{.*}} ptr @preinc(ptr noundef %[[BASE:.*]])
240 // CHECK-NEXT: [[ENTRY:.*]]:
241 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca ptr, align 8
242 // CHECK-NEXT: store ptr %[[BASE]], ptr %[[BASE_ADDR]], align 8
243 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load ptr, ptr %[[BASE_ADDR]], align 8
244 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, ptr %[[BASE_RELOADED]], i32 1
245 // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint ptr %[[BASE_RELOADED]] to i64, !nosanitize
246 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], 1, !nosanitize
247 // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne ptr %[[BASE_RELOADED]], null, !nosanitize
248 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize
249 // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
250 // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
251 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_UGE_BASE:.*]] = icmp uge i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize
252 // CHECK-SANITIZE-NEXT: %[[AND_TRUE:.*]] = and i1 %[[COMPUTED_GEP_IS_UGE_BASE]], true, !nosanitize
253 // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[AND_TRUE]], !nosanitize
254 // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize
255 // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]:
256 // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(ptr @[[LINE_700]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
257 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(ptr @[[LINE_700]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
258 // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize
259 // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
260 // CHECK-SANITIZE: [[CONT]]:
261 // CHECK-NEXT: store ptr %[[ADD_PTR]], ptr %[[BASE_ADDR]], align 8
262 // CHECK-NEXT: %[[ADD_PTR_RELOADED:.*]] = load ptr, ptr %[[BASE_ADDR]], align 8
263 // CHECK-NEXT: ret ptr %[[ADD_PTR_RELOADED]]
264 #line 700
265 ++base;
266 return base;
267 }
268
269 char *predec(char *base) {
270 // CHECK: define{{.*}} ptr @predec(ptr noundef %[[BASE:.*]])
271 // CHECK-NEXT: [[ENTRY:.*]]:
272 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca ptr, align 8
273 // CHECK-NEXT: store ptr %[[BASE]], ptr %[[BASE_ADDR]], align 8
274 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load ptr, ptr %[[BASE_ADDR]], align 8
275 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, ptr %[[BASE_RELOADED]], i32 -1
276 // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint ptr %[[BASE_RELOADED]] to i64, !nosanitize
277 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], -1, !nosanitize
278 // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne ptr %[[BASE_RELOADED]], null, !nosanitize
279 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize
280 // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
281 // CHECK-SANITIZE-CPP-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = icmp eq i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize
282 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_ULE_BASE:.*]] = icmp ule i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize
283 // CHECK-SANITIZE-NEXT: %[[AND_TRUE:.*]] = and i1 %[[COMPUTED_GEP_IS_UGE_BASE]], true, !nosanitize
284 // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[AND_TRUE]], !nosanitize
285 // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize
286 // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]:
287 // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(ptr @[[LINE_800]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
288 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(ptr @[[LINE_800]], i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]])
289 // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize
290 // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
291 // CHECK-SANITIZE: [[CONT]]:
292 // CHECK-NEXT: store ptr %[[ADD_PTR]], ptr %[[BASE_ADDR]], align 8
293 // CHECK-NEXT: %[[ADD_PTR_RELOADED:.*]] = load ptr, ptr %[[BASE_ADDR]], align 8
294 // CHECK-NEXT: ret ptr %[[ADD_PTR_RELOADED]]
295 #line 800
296 --base;
297 return base;
298 }
299
300 #ifdef __cplusplus
301 }
302 #endif
LLVM monorepo