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{{.*}} i8* @add_unsigned(i8* noundef %[[BASE:.*]], i64 noundef %[[OFFSET:.*]]) 26 // CHECK-NEXT: [[ENTRY:.*]]: 27 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 28 // CHECK-NEXT: %[[OFFSET_ADDR:.*]] = alloca i64, align 8 29 // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 30 // CHECK-NEXT: store i64 %[[OFFSET]], i64* %[[OFFSET_ADDR]], align 8 31 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 32 // CHECK-NEXT: %[[OFFSET_RELOADED:.*]] = load i64, i64* %[[OFFSET_ADDR]], align 8 33 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[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 i8* %[[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 i8* %[[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(i8* bitcast ({ {{{.*}}} }* @[[LINE_100]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) 51 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_100]] to i8*), 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 i8* %[[ADD_PTR]] 56 #line 100 57 return base + offset; 58 } 59 60 char *sub_unsigned(char *base, unsigned long offset) { 61 // CHECK: define{{.*}} i8* @sub_unsigned(i8* noundef %[[BASE:.*]], i64 noundef %[[OFFSET:.*]]) 62 // CHECK-NEXT: [[ENTRY:.*]]: 63 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 64 // CHECK-NEXT: %[[OFFSET_ADDR:.*]] = alloca i64, align 8 65 // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 66 // CHECK-NEXT: store i64 %[[OFFSET]], i64* %[[OFFSET_ADDR]], align 8 67 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 68 // CHECK-NEXT: %[[OFFSET_RELOADED:.*]] = load i64, i64* %[[OFFSET_ADDR]], align 8 69 // CHECK-NEXT: %[[IDX_NEG:.*]] = sub i64 0, %[[OFFSET_RELOADED]] 70 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[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 i8* %[[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 i8* %[[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(i8* bitcast ({ {{{.*}}} }* @[[LINE_200]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) 88 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_200]] to i8*), 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 i8* %[[ADD_PTR]] 93 #line 200 94 return base - offset; 95 } 96 97 char *add_signed(char *base, signed long offset) { 98 // CHECK: define{{.*}} i8* @add_signed(i8* noundef %[[BASE:.*]], i64 noundef %[[OFFSET:.*]]) 99 // CHECK-NEXT: [[ENTRY:.*]]: 100 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 101 // CHECK-NEXT: %[[OFFSET_ADDR:.*]] = alloca i64, align 8 102 // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 103 // CHECK-NEXT: store i64 %[[OFFSET]], i64* %[[OFFSET_ADDR]], align 8 104 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 105 // CHECK-NEXT: %[[OFFSET_RELOADED:.*]] = load i64, i64* %[[OFFSET_ADDR]], align 8 106 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[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 i8* %[[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 i8* %[[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(i8* bitcast ({ {{{.*}}} }* @[[LINE_300]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) 127 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_300]] to i8*), 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 i8* %[[ADD_PTR]] 132 #line 300 133 return base + offset; 134 } 135 136 char *sub_signed(char *base, signed long offset) { 137 // CHECK: define{{.*}} i8* @sub_signed(i8* noundef %[[BASE:.*]], i64 noundef %[[OFFSET:.*]]) 138 // CHECK-NEXT: [[ENTRY:.*]]: 139 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 140 // CHECK-NEXT: %[[OFFSET_ADDR:.*]] = alloca i64, align 8 141 // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 142 // CHECK-NEXT: store i64 %[[OFFSET]], i64* %[[OFFSET_ADDR]], align 8 143 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 144 // CHECK-NEXT: %[[OFFSET_RELOADED:.*]] = load i64, i64* %[[OFFSET_ADDR]], align 8 145 // CHECK-NEXT: %[[IDX_NEG:.*]] = sub i64 0, %[[OFFSET_RELOADED]] 146 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[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 i8* %[[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 i8* %[[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(i8* bitcast ({ {{{.*}}} }* @[[LINE_400]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) 167 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_400]] to i8*), 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 i8* %[[ADD_PTR]] 172 #line 400 173 return base - offset; 174 } 175 176 char *postinc(char *base) { 177 // CHECK: define{{.*}} i8* @postinc(i8* noundef %[[BASE:.*]]) 178 // CHECK-NEXT: [[ENTRY:.*]]: 179 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 180 // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 181 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 182 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[BASE_RELOADED]], i32 1 183 // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint i8* %[[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 i8* %[[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: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[COMPUTED_GEP_IS_UGE_BASE]], !nosanitize 191 // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize 192 // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]: 193 // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(i8* bitcast ({ {{{.*}}} }* @[[LINE_500]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) 194 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_500]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) 195 // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize 196 // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize 197 // CHECK-SANITIZE: [[CONT]]: 198 // CHECK-NEXT: store i8* %[[ADD_PTR]], i8** %[[BASE_ADDR]], align 8 199 // CHECK-NEXT: %[[ADD_PTR_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 200 // CHECK-NEXT: ret i8* %[[ADD_PTR_RELOADED]] 201 #line 500 202 base++; 203 return base; 204 } 205 206 char *postdec(char *base) { 207 // CHECK: define{{.*}} i8* @postdec(i8* noundef %[[BASE:.*]]) 208 // CHECK-NEXT: [[ENTRY:.*]]: 209 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 210 // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 211 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 212 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[BASE_RELOADED]], i32 -1 213 // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint i8* %[[BASE_RELOADED]] to i64, !nosanitize 214 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], -1, !nosanitize 215 // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne i8* %[[BASE_RELOADED]], null, !nosanitize 216 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize 217 // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize 218 // 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 219 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_ULE_BASE:.*]] = icmp ule i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize 220 // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[COMPUTED_GEP_IS_ULE_BASE]], !nosanitize 221 // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize 222 // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]: 223 // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(i8* bitcast ({ {{{.*}}} }* @[[LINE_600]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) 224 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_600]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) 225 // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize 226 // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize 227 // CHECK-SANITIZE: [[CONT]]: 228 // CHECK-NEXT: store i8* %[[ADD_PTR]], i8** %[[BASE_ADDR]], align 8 229 // CHECK-NEXT: %[[ADD_PTR_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 230 // CHECK-NEXT: ret i8* %[[ADD_PTR_RELOADED]] 231 #line 600 232 base--; 233 return base; 234 } 235 236 char *preinc(char *base) { 237 // CHECK: define{{.*}} i8* @preinc(i8* noundef %[[BASE:.*]]) 238 // CHECK-NEXT: [[ENTRY:.*]]: 239 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 240 // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 241 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 242 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[BASE_RELOADED]], i32 1 243 // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint i8* %[[BASE_RELOADED]] to i64, !nosanitize 244 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], 1, !nosanitize 245 // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne i8* %[[BASE_RELOADED]], null, !nosanitize 246 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize 247 // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize 248 // 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 249 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_UGE_BASE:.*]] = icmp uge i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize 250 // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[COMPUTED_GEP_IS_UGE_BASE]], !nosanitize 251 // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize 252 // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]: 253 // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(i8* bitcast ({ {{{.*}}} }* @[[LINE_700]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) 254 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_700]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) 255 // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize 256 // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize 257 // CHECK-SANITIZE: [[CONT]]: 258 // CHECK-NEXT: store i8* %[[ADD_PTR]], i8** %[[BASE_ADDR]], align 8 259 // CHECK-NEXT: %[[ADD_PTR_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 260 // CHECK-NEXT: ret i8* %[[ADD_PTR_RELOADED]] 261 #line 700 262 ++base; 263 return base; 264 } 265 266 char *predec(char *base) { 267 // CHECK: define{{.*}} i8* @predec(i8* noundef %[[BASE:.*]]) 268 // CHECK-NEXT: [[ENTRY:.*]]: 269 // CHECK-NEXT: %[[BASE_ADDR:.*]] = alloca i8*, align 8 270 // CHECK-NEXT: store i8* %[[BASE]], i8** %[[BASE_ADDR]], align 8 271 // CHECK-NEXT: %[[BASE_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 272 // CHECK-NEXT: %[[ADD_PTR:.*]] = getelementptr inbounds i8, i8* %[[BASE_RELOADED]], i32 -1 273 // CHECK-SANITIZE-NEXT: %[[BASE_RELOADED_INT:.*]] = ptrtoint i8* %[[BASE_RELOADED]] to i64, !nosanitize 274 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP:.*]] = add i64 %[[BASE_RELOADED_INT]], -1, !nosanitize 275 // CHECK-SANITIZE-NEXT: %[[BASE_IS_NOT_NULLPTR:.*]] = icmp ne i8* %[[BASE_RELOADED]], null, !nosanitize 276 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_NOT_NULL:.*]] = icmp ne i64 %[[COMPUTED_GEP]], 0, !nosanitize 277 // CHECK-SANITIZE-C-NEXT: %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL:.*]] = and i1 %[[BASE_IS_NOT_NULLPTR]], %[[COMPUTED_GEP_IS_NOT_NULL]], !nosanitize 278 // 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 279 // CHECK-SANITIZE-NEXT: %[[COMPUTED_GEP_IS_ULE_BASE:.*]] = icmp ule i64 %[[COMPUTED_GEP]], %[[BASE_RELOADED_INT]], !nosanitize 280 // CHECK-SANITIZE-NEXT: %[[GEP_IS_OKAY:.*]] = and i1 %[[BOTH_POINTERS_ARE_NULL_OR_BOTH_ARE_NONNULL]], %[[COMPUTED_GEP_IS_ULE_BASE]], !nosanitize 281 // CHECK-SANITIZE-NEXT: br i1 %[[GEP_IS_OKAY]], label %[[CONT:.*]], label %[[HANDLER_POINTER_OVERFLOW:[^,]+]],{{.*}} !nosanitize 282 // CHECK-SANITIZE: [[HANDLER_POINTER_OVERFLOW]]: 283 // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_pointer_overflow_abort(i8* bitcast ({ {{{.*}}} }* @[[LINE_800]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) 284 // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ {{{.*}}} }* @[[LINE_800]] to i8*), i64 %[[BASE_RELOADED_INT]], i64 %[[COMPUTED_GEP]]) 285 // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 19){{.*}}, !nosanitize 286 // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize 287 // CHECK-SANITIZE: [[CONT]]: 288 // CHECK-NEXT: store i8* %[[ADD_PTR]], i8** %[[BASE_ADDR]], align 8 289 // CHECK-NEXT: %[[ADD_PTR_RELOADED:.*]] = load i8*, i8** %[[BASE_ADDR]], align 8 290 // CHECK-NEXT: ret i8* %[[ADD_PTR_RELOADED]] 291 #line 800 292 --base; 293 return base; 294 } 295 296 #ifdef __cplusplus 297 } 298 #endif 299