derek.holloway
7502bf64a4
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28 lines
678 B
C
28 lines
678 B
C
// RUN: %clang_tysan -O0 %s -o %t && %run %t >%t.out 2>&1
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// RUN: FileCheck %s < %t.out
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#include <stdio.h>
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typedef struct {
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int i1, i1b;
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} s1;
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typedef struct {
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int i2, i2b, i2c;
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} s2;
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void f(s1 *s1p, s2 *s2p) {
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s1p->i1 = 2;
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s2p->i2 = 3;
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// CHECK: ERROR: TypeSanitizer: type-aliasing-violation
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// CHECK: WRITE of size 4 at {{.*}} with type int (in <anonymous type> at offset 0) accesses an existing object of type int (in <anonymous type> at offset 0)
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// CHECK: {{#0 0x.* in f .*anon-struct.c:}}[[@LINE-3]]
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printf("%i\n", s1p->i1);
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}
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int main() {
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s1 s = {.i1 = 1, .i1b = 5};
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f(&s, (s2 *)&s);
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}
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// CHECK-NOT: ERROR: TypeSanitizer: type-aliasing-violation
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