GIMPLE clobber statement

2019-07-16 Thread navya deepika Garakapati
Hi everyone, We are investigating the optimization issue with GCC trunk code and we have the below gimple code like a = 1; __asm__ __volatile__(""); _9 = &a; a ={v} {CLOBBER}; _4 = _9; _1 = *_4; std::basic_ostream::operator<< (&cout, _1); in the above gimple statements ,we would li

Re: GIMPLE clobber statement

2019-07-16 Thread Jason Merrill
The clobber means that 'a' no longer has a value, presumably because it has gone out of scope. On Tue, Jul 16, 2019, 2:07 PM navya deepika Garakapati < navyadeepika.garakap...@gmail.com> wrote: > Hi everyone, > > We are investigating the optimization issue with GCC trunk code and we have > the be