catch-implicit-signed-integer-truncations-basics-negatives.c
2.1 KB
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
// RUN: %clang_cc1 -fsanitize=implicit-signed-integer-truncation -fsanitize-recover=implicit-signed-integer-truncation -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK
// CHECK-DAG: @[[LINE_100_SIGNED_TRUNCATION:.*]] = {{.*}}, i32 100, i32 10 }, {{.*}}, {{.*}}, i8 2 }
// CHECK-DAG: @[[LINE_200_SIGNED_TRUNCATION:.*]] = {{.*}}, i32 200, i32 10 }, {{.*}}, {{.*}}, i8 2 }
// CHECK-LABEL: @blacklist_0_convert_signed_int_to_signed_char
__attribute__((no_sanitize("undefined"))) signed char blacklist_0_convert_signed_int_to_signed_char(signed int x) {
// We are not in "undefined" group, so that doesn't work.
// CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_100_SIGNED_TRUNCATION]] to i8*)
#line 100
return x;
}
// CHECK-LABEL: @blacklist_1_convert_signed_int_to_signed_char
__attribute__((no_sanitize("integer"))) signed char blacklist_1_convert_signed_int_to_signed_char(signed int x) {
return x;
}
// CHECK-LABEL: @blacklist_2_convert_signed_int_to_signed_char
__attribute__((no_sanitize("implicit-conversion"))) signed char blacklist_2_convert_signed_int_to_signed_char(signed int x) {
return x;
}
// CHECK-LABEL: @blacklist_3_convert_signed_int_to_signed_char
__attribute__((no_sanitize("implicit-integer-truncation"))) signed char blacklist_3_convert_signed_int_to_signed_char(signed int x) {
return x;
}
// CHECK-LABEL: @blacklist_4_convert_signed_int_to_signed_char
__attribute__((no_sanitize("implicit-signed-integer-truncation"))) signed char blacklist_4_convert_signed_int_to_signed_char(signed int x) {
return x;
}
// CHECK-LABEL: @blacklist_5_convert_signed_int_to_signed_char
__attribute__((no_sanitize("implicit-unsigned-integer-truncation"))) signed char blacklist_5_convert_signed_int_to_signed_char(signed int x) {
// This is an signed truncation, not unsigned-one.
// CHECK: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_200_SIGNED_TRUNCATION]] to i8*)
#line 200
return x;
}