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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 | // This test checks that intersecting ranges does not cause 'system is over constrained' assertions in the case of eg: 32 bits unsigned integers getting their range from 64 bits signed integers. // RUN: %clang_analyze_cc1 -triple x86_64-pc-linux-gnu -analyzer-checker=core,debug.ExprInspection -analyzer-store=region -verify %s void clang_analyzer_warnIfReached(); void f1(long foo) { unsigned index = -1; if (index < foo) index = foo; if (index + 1 == 0) // because of foo range, index is in range [0; UINT_MAX] clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} else clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} } void f2(unsigned long foo) { int index = -1; if (index < foo) index = foo; // index equals ULONG_MAX if (index + 1 == 0) clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} else clang_analyzer_warnIfReached(); // no-warning } void f3(unsigned long foo) { unsigned index = -1; if (index < foo) index = foo; if (index + 1 == 0) clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} else clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} } void f4(long foo) { int index = -1; if (index < foo) index = foo; if (index + 1 == 0) clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} else clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} } void f5(long foo) { unsigned index = -1; if (index < foo) index = foo; if (index == -1) clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} else clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} } void f6(long foo) { unsigned index = -1; if (index < foo) index = foo; if (index == -1) clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} else clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} } void f7(long foo) { unsigned index = -1; if (index < foo) index = foo; if (index - 1 == 0) // Was not reached prior fix. clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} else clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} } void f8(long foo) { unsigned index = -1; if (index < foo) index = foo; if (index + 1L == 0L) clang_analyzer_warnIfReached(); // no-warning else clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} } void f9(long foo) { unsigned index = -1; if (index < foo) index = foo; if (index - 1L == 0L) // Was not reached prior fix. clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} else clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} } void f10(long foo) { unsigned index = -1; if (index < foo) index = foo; if (index + 1 == 0L) clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} else clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} } void f11(long foo) { unsigned index = -1; if (index < foo) index = foo; if (index + 1UL == 0L) clang_analyzer_warnIfReached(); // no-warning else clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} } void f12(long foo) { unsigned index = -1; if (index < foo) index = foo; if (index - 1UL == 0L) // Was not reached prior fix. clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} else clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} } void f13(int foo) { unsigned short index = -1; if (index < foo) index = foo; if (index + 1 == 0) clang_analyzer_warnIfReached(); // no-warning else clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} } void f14(long foo) { unsigned index = -1; if (index < foo) index = foo; long bar = foo; if (index + 1 == 0) clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} else clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} } void f15(long foo) { unsigned index = -1; if (index < foo) index = foo; unsigned int tmp = index + 1; if (tmp == 0) clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} else clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}} } |