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Add failing test for Baozeng to fine tune the NullDeref impl.

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Vassil Vassilev 2013-08-15 22:20:55 +02:00 committed by sftnight
parent 26995d74d1
commit eeb99d7030
1 changed files with 47 additions and 0 deletions
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test/NullDeref/NonNullArgCustom.C Normal file
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// RUN: cat %s | %cling -Xclang -verify | FileCheck %s
// XFAIL:*
// We must be able to handle cases where, there is a custom function that has
// attributes non-null arguments and we should be able to add a non-null arg
// attribute to a say library function.
// Qualified functions.
namespace custom_namespace {
void standaloneFunc(void* p, int q, float* s) __attribute__((nonnull(1,3))) { // expected-warning {{GCC does not allow nonnull attribute in this position on a function definition}}
if (!p || !s)
printf("Must not be called with 0 args.\n");
}
void standaloneFunc2(void* p, int q, float* s) __attribute__((nonnull(3)));
void standaloneFunc2(void* p, int q, float* s) {
if (!s)
printf("Must not be called with 0 args.\n");
}
}
// This can be a function defined in a library or somewhere else.
extern "C" int printf(const char* fmt, ...) __attribute__((nonnull(1)));
int* pNull = 0;
float* fNull = 0;
int* p = new int(1);
float* f = new float(0.0);
const char* charNull = 0;
custom_namespace::standaloneFunc(pNull, 1, fNull);
custom_namespace::standaloneFunc(pNull, 1, f);
custom_namespace::standaloneFunc(p, 1, fNull);
printf(charNull, ""); // expected-warning {{you are about to dereference null ptr, which probably will lead to seg violation. Do you want to proceed?[y/n]}}
.rawInput 1
int trampoline() {
custom_namespace::standaloneFunc(pNull, 1, fNull);
custom_namespace::standaloneFunc(pNull, 1, f);
custom_namespace::standaloneFunc(p, 1, fNull);
return 1;
}
.rawInput 0
//CHECK-NOT: Must not be called with 0 args.
trampoline()
//CHECK: (int) 1
.q