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1 // RUN: %clang_cc1 -fsanitize=implicit-unsigned-integer-truncation,implicit-signed-integer-truncation,implicit-integer-sign-change -fsanitize-recover=implicit-unsigned-integer-truncation,implicit-signed-integer-truncation,implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK
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2
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3 // Test plan:
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4 // * Two types - int and char
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5 // * Two signs - signed and unsigned
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6 // * Square that - we have input and output types.
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7 // Thus, there are total of (2*2)^2 == 16 tests.
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8 // These are all the possible variations/combinations of casts.
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9 // However, not all of them should result in the check.
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10 // So here, we *only* check which should and which should not result in checks.
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11
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12 // CHECK-DAG: @[[LINE_500_UNSIGNED_TRUNCATION:.*]] = {{.*}}, i32 500, i32 10 }, {{.*}}, {{.*}}, i8 1 }
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13 // CHECK-DAG: @[[LINE_900_SIGN_CHANGE:.*]] = {{.*}}, i32 900, i32 10 }, {{.*}}, {{.*}}, i8 3 }
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14 // CHECK-DAG: @[[LINE_1000_SIGN_CHANGE:.*]] = {{.*}}, i32 1000, i32 10 }, {{.*}}, {{.*}}, i8 3 }
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15 // CHECK-DAG: @[[LINE_1100_SIGNED_TRUNCATION:.*]] = {{.*}}, i32 1100, i32 10 }, {{.*}}, {{.*}}, i8 2 }
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16 // CHECK-DAG: @[[LINE_1200_SIGN_CHANGE:.*]] = {{.*}}, i32 1200, i32 10 }, {{.*}}, {{.*}}, i8 3 }
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17 // CHECK-DAG: @[[LINE_1300_SIGN_CHANGE:.*]] = {{.*}}, i32 1300, i32 10 }, {{.*}}, {{.*}}, i8 3 }
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18 // CHECK-DAG: @[[LINE_1400_SIGN_CHANGE:.*]] = {{.*}}, i32 1400, i32 10 }, {{.*}}, {{.*}}, i8 3 }
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19 // CHECK-DAG: @[[LINE_1500_SIGNED_TRUNCATION_OR_SIGN_CHANGE:.*]] = {{.*}}, i32 1500, i32 10 }, {{.*}}, {{.*}}, i8 4 }
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20 // CHECK-DAG: @[[LINE_1600_SIGNED_TRUNCATION:.*]] = {{.*}}, i32 1600, i32 10 }, {{.*}}, {{.*}}, i8 2 }
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21
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22 // CHECK-LABEL: @convert_unsigned_int_to_unsigned_int
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23 unsigned int convert_unsigned_int_to_unsigned_int(unsigned int x) {
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24 #line 100
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25 return x;
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26 }
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27
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28 // CHECK-LABEL: @convert_unsigned_char_to_unsigned_char
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29 unsigned char convert_unsigned_char_to_unsigned_char(unsigned char x) {
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30 #line 200
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31 return x;
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32 }
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33
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34 // CHECK-LABEL: @convert_signed_int_to_signed_int
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35 signed int convert_signed_int_to_signed_int(signed int x) {
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36 #line 300
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37 return x;
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38 }
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39
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40 // CHECK-LABEL: @convert_signed_char_to_signed_char
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41 signed char convert_signed_char_to_signed_char(signed char x) {
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42 #line 400
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43 return x;
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44 }
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45
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46 // CHECK-LABEL: @convert_unsigned_int_to_unsigned_char
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47 unsigned char convert_unsigned_int_to_unsigned_char(unsigned int x) {
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236
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48 // CHECK: call void @__ubsan_handle_implicit_conversion(ptr @[[LINE_500_UNSIGNED_TRUNCATION]]
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150
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49 #line 500
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50 return x;
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51 }
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52
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53 // CHECK-LABEL: @convert_unsigned_char_to_unsigned_int
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54 unsigned int convert_unsigned_char_to_unsigned_int(unsigned char x) {
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55 #line 600
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56 return x;
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57 }
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58
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59 // CHECK-LABEL: @convert_unsigned_char_to_signed_int
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60 signed int convert_unsigned_char_to_signed_int(unsigned char x) {
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61 #line 700
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62 return x;
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63 }
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64
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65 // CHECK-LABEL: @convert_signed_char_to_signed_int
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66 signed int convert_signed_char_to_signed_int(signed char x) {
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67 #line 800
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68 return x;
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69 }
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70
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71 // CHECK-LABEL: @convert_unsigned_int_to_signed_int
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72 signed int convert_unsigned_int_to_signed_int(unsigned int x) {
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236
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73 // CHECK: call void @__ubsan_handle_implicit_conversion(ptr @[[LINE_900_SIGN_CHANGE]]
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150
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74 #line 900
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75 return x;
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76 }
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77
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78 // CHECK-LABEL: @convert_signed_int_to_unsigned_int
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79 unsigned int convert_signed_int_to_unsigned_int(signed int x) {
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236
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80 // CHECK: call void @__ubsan_handle_implicit_conversion(ptr @[[LINE_1000_SIGN_CHANGE]]
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150
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81 #line 1000
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82 return x;
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83 }
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84
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85 // CHECK-LABEL: @convert_signed_int_to_unsigned_char
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86 unsigned char convert_signed_int_to_unsigned_char(signed int x) {
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236
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87 // CHECK: call void @__ubsan_handle_implicit_conversion(ptr @[[LINE_1100_SIGNED_TRUNCATION]]
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150
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88 #line 1100
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89 return x;
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90 }
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91
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92 // CHECK-LABEL: @convert_signed_char_to_unsigned_char
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93 unsigned char convert_signed_char_to_unsigned_char(signed char x) {
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236
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94 // CHECK: call void @__ubsan_handle_implicit_conversion(ptr @[[LINE_1200_SIGN_CHANGE]]
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150
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95 #line 1200
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96 return x;
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97 }
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98
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99 // CHECK-LABEL: @convert_unsigned_char_to_signed_char
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100 signed char convert_unsigned_char_to_signed_char(unsigned char x) {
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236
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101 // CHECK: call void @__ubsan_handle_implicit_conversion(ptr @[[LINE_1300_SIGN_CHANGE]]
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150
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102 #line 1300
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103 return x;
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104 }
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105
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106 // CHECK-LABEL: @convert_signed_char_to_unsigned_int
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107 unsigned int convert_signed_char_to_unsigned_int(signed char x) {
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236
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108 // CHECK: call void @__ubsan_handle_implicit_conversion(ptr @[[LINE_1400_SIGN_CHANGE]]
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150
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109 #line 1400
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110 return x;
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111 }
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112
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113 // CHECK-LABEL: @convert_unsigned_int_to_signed_char
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114 signed char convert_unsigned_int_to_signed_char(unsigned int x) {
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236
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115 // CHECK: call void @__ubsan_handle_implicit_conversion(ptr @[[LINE_1500_SIGNED_TRUNCATION_OR_SIGN_CHANGE]]
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116 #line 1500
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117 return x;
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118 }
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119
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120 // CHECK-LABEL: @convert_signed_int_to_signed_char
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121 signed char convert_signed_int_to_signed_char(signed int x) {
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236
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122 // CHECK: call void @__ubsan_handle_implicit_conversion(ptr @[[LINE_1600_SIGNED_TRUNCATION]]
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150
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123 #line 1600
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124 return x;
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125 }
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