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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [g++.dg/] [init/] [new16.C] - Rev 318
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// { dg-do run }
// { dg-options "-O2 -fstrict-aliasing" }
// Test that we don't let TBAA reorder an assignment across a
// placement new.
// See PR 29286.
typedef __SIZE_TYPE__ size_t;
inline void* operator new(size_t, void* __p) throw() { return __p; }
void __attribute__((noinline)) bar() {}
long __attribute__((noinline)) foo(double *p, int n)
{
long *f;
for (int i=0; i<n; ++i)
{
int *l = (int *)p;
*l = 0;
f = new (p) long;
*f = -1;
}
bar ();
return *f;
}
extern "C" void abort(void);
int main()
{
union {
int i;
long l;
} u;
if (foo((double *)&u, 1) != -1)
abort ();
return 0;
}
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