99 lines
2.2 KiB
C++
99 lines
2.2 KiB
C++
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// UNSUPPORTED: z3
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// RUN: %clang_analyze_cc1 -w -fcxx-exceptions -analyzer-checker=core -analyzer-checker=alpha.core.PointerArithm,alpha.core.CastToStruct -analyzer-max-loop 64 -verify %s
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// RUN: %clang_analyze_cc1 -w -analyzer-checker=core -analyzer-checker=cplusplus -fcxx-exceptions -analyzer-checker alpha.core.PointerArithm,alpha.core.CastToStruct -analyzer-max-loop 63 -verify %s
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// These tests used to hit an assertion in the bug report. Test case from http://llvm.org/PR24184.
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typedef struct {
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int cbData;
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unsigned pbData;
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} CRYPT_DATA_BLOB;
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typedef enum { DT_NONCE_FIXED } DATA_TYPE;
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int a;
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typedef int *vcreate_t(int *, DATA_TYPE, int, int);
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void fn1(unsigned, unsigned) {
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char b = 0;
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for (; 1; a++, &b + a * 0)
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;
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}
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vcreate_t fn2;
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struct A {
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CRYPT_DATA_BLOB value;
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int m_fn1() {
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int c;
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value.pbData == 0;
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fn1(0, 0);
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}
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};
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struct B {
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A IkeHashAlg;
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A IkeGType;
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A NoncePhase1_r;
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};
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class C {
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int m_fn2(B *);
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void m_fn3(B *, int, int, int);
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};
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int C::m_fn2(B *p1) {
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int *d;
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int e = p1->IkeHashAlg.m_fn1();
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unsigned f = p1->IkeGType.m_fn1(), h;
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int g;
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d = fn2(0, DT_NONCE_FIXED, (char)0, p1->NoncePhase1_r.value.cbData);
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h = 0 | 0;
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m_fn3(p1, 0, 0, 0);
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}
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// case 2:
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typedef struct {
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int cbData;
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unsigned char *pbData;
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} CRYPT_DATA_BLOB_1;
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typedef unsigned uint32_t;
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void fn1_1(void *p1, const void *p2) { p1 != p2; }
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void fn2_1(uint32_t *p1, unsigned char *p2, uint32_t p3) {
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unsigned i = 0;
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for (0; i < p3; i++)
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fn1_1(p1 + i, p2 + i * 0);
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}
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struct A_1 {
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CRYPT_DATA_BLOB_1 value;
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uint32_t m_fn1() {
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uint32_t a;
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if (value.pbData)
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fn2_1(&a, value.pbData, value.cbData);
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return 0;
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}
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};
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struct {
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A_1 HashAlgId;
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} *b;
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void fn3() {
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uint32_t c, d;
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d = b->HashAlgId.m_fn1();
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d << 0 | 0 | 0;
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c = 0;
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0 | 1 << 0 | 0 && b;
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}
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// case 3:
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struct ST {
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char c;
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};
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char *p;
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int foo1(ST);
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int foo2() {
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ST *p1 = (ST *)(p); // expected-warning{{Casting a non-structure type to a structure type and accessing a field can lead to memory access errors or data corruption}}
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while (p1->c & 0x0F || p1->c & 0x07)
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p1 = p1 + foo1(*p1);
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}
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int foo3(int *node) {
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int i = foo2();
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if (i)
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return foo2();
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}
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