21 lines
781 B
C
21 lines
781 B
C
// RUN: clang-cc -analyze -checker-cfref -analyzer-store=basic -analyzer-constraints=basic -verify %s &&
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// RUN: clang-cc -analyze -checker-cfref -analyzer-store=basic -analyzer-constraints=range -verify %s &&
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// RUN: clang-cc -analyze -checker-cfref -analyzer-store=region -analyzer-constraints=basic -verify %s &&
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// RUN: clang-cc -analyze -checker-cfref -analyzer-store=region -analyzer-constraints=range -verify %s
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#include <stdint.h>
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int f1(int * p) {
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// This branch should be infeasible
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// because __imag__ p is 0.
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if (!p && __imag__ (intptr_t) p)
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*p = 1; // no-warning
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// If p != 0 then this branch is feasible; otherwise it is not.
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if (__real__ (intptr_t) p)
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*p = 1; // no-warning
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*p = 2; // expected-warning{{Dereference of null pointer}}
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}
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