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! { dg-do run }
program bug
! Bug triggered with at least three elements
integer, parameter :: asize = 3
double precision,save :: ave(asize)
double precision,save :: old(asize)
double precision,save :: tmp(asize)
ave(:) = 10.d0
old(:) = 3.d0
tmp(:) = 0.d0
call buggy(2.d0,asize,ave,old,tmp)
if (any (tmp(:) .ne. 3.5)) STOP 1
end
subroutine buggy(scale_factor, asize, ave, old, tmp)
implicit none
! Args
double precision scale_factor
integer asize
double precision ave(asize)
double precision old(asize)
double precision tmp(asize)
! Local
integer i
do i = 1, asize
tmp(i) = ave(i) - old(i)
old(i) = ave(i)
tmp(i) = tmp(i) / scale_factor
end do
end subroutine buggy
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