Viewing file:  pr45940-3.C (1.12 KB) -rw-r--r--
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// { dg-do compile }
// { dg-options "-fgnu-tm -O0" }
__attribute__((transaction_safe))
void* operator new (__SIZE_TYPE__);
__attribute__((transaction_pure))
inline int atomic_exchange_and_add( int * pw, int dv )
{
int r;
__asm__ ("" : "=r"(r));
return r;
}
class sp_counted_base
{
protected:
int use_count_; // #shared
public:
__attribute__((transaction_safe))
virtual void dispose() = 0; // nothrow
__attribute__((transaction_safe))
void release() // nothrow
{
if( atomic_exchange_and_add( &use_count_, -1 ) == 1 )
{
dispose();
}
}
};
class sp_counted_base_x86 : public sp_counted_base
{
public:
void dispose()
{
release();
}
};
class shared_count
{
private:
sp_counted_base * pi_;
public:
int j;
__attribute__((transaction_safe))
shared_count(): pi_(new sp_counted_base_x86()), j(0)
{
}
__attribute__((transaction_safe))
~shared_count() // nothrow
{
if( pi_ != 0 ) pi_->release();
}
};
volatile int i = 1;
shared_count * c;
int main()
{
if ( i == 0) {
__transaction_atomic {
shared_count sc;
}
}
return 0;
}
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