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28 lines
842 B
Fortran
28 lines
842 B
Fortran
! { dg-do compile }
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! PR32489 Endless loop when compiling.
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! Derived from fft257.f90, Public domain 2004 James Van Buskirk.
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! Note: The problem solved here was not an infinite loop issue. Middle-end
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! could not handle the array constructor unfolded by the front end.
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! WARNING: Potential resource hog.
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! Jerry DeLisle <jvdelisle@gcc.gnu.org>
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program test
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implicit none
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integer, parameter :: dp = selected_real_kind(15,300)
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integer, parameter :: N = 257
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complex(dp) h1(0:N-1)
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complex(dp) h2(0:N-1)
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complex(dp) hh(0:N-1)
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complex(dp), parameter :: ri(2) = (/(1,0),(0,1)/)
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integer i, j, k, L
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real(dp) pi
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pi = 4*atan(1.0_dp)
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do i = 0, N-1
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do j = 1, 2
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h2 = 0
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h2(i) = ri(j)
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h1 = (/(sum((/(exp(-2*pi*(0,1)*mod(k*L,N)/N)*h2(L),L=0,N-1)/)),k=0,N-1)/)
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end do
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end do
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end program test
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