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c { dg-do run }
c PR optimization/13037
c Contributed by Kirill Smelkov
c bug symptom: zeta(kkzc) seems to reference to zeta(kkzc-1) instead
c with gcc-3.2.2 it is OK, so it is a regression.
c
subroutine bug1(expnt)
implicit none
double precision zeta
common /bug1_area/zeta(3)
double precision expnt(3)
integer k, kkzc
kkzc=0
do k=1,3
kkzc = kkzc + 1
zeta(kkzc) = expnt(k)
enddo
c the following line activates the bug
call bug1_activator(kkzc)
end
c dummy subroutine
subroutine bug1_activator(inum)
implicit none
integer inum
end
c test driver
program test_bug1
implicit none
double precision zeta
common /bug1_area/zeta(3)
double precision expnt(3)
zeta(1) = 0.0d0
zeta(2) = 0.0d0
zeta(3) = 0.0d0
expnt(1) = 1.0d0
expnt(2) = 2.0d0
expnt(3) = 3.0d0
call bug1(expnt)
if ((zeta(1).ne.1) .or. (zeta(2).ne.2) .or. (zeta(3).ne.3)) then
call abort
endif
end
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