https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89651
--- Comment #5 from Jim Feng <jfeng33 at hotmail dot com> --- (In reply to Jakub Jelinek from comment #4) > On the other side, the testcase is invalid, because you are summing > uninitialized data. It is like if you did: > program pr89651 > integer :: n > real, allocatable :: t(:) > n = 10 > allocate (t(n)) > print *, sum (t) > end program pr89651 > but it is true gfortran doesn't warn here either. And we do warn even with > firstprivate(t) when it is not undefined. In the test case, the array is initialized: allocate(t(n),source=0.0) It is puzzling that normal compile without optimization is OK. My concern is whether I should just disregard the warning or compile the program without optimization.
