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! { dg-do run }
! Test the fix for PR61459 and PR58883.
!
! Contributed by John Wingate <johnww@tds.net>
! and Tao Song <songtao.thu@gmail.com>
!
module a
implicit none
private
public :: f_segfault, f_segfault_plus, f_workaround
integer, dimension(2,2) :: b = reshape([1,-1,1,1],[2,2])
contains
function f_segfault(x)
real, dimension(:), allocatable :: f_segfault
real, dimension(:), intent(in) :: x
allocate(f_segfault(2))
f_segfault = matmul(b,x)
end function f_segfault
! Sefaulted without the ALLOCATE as well.
function f_segfault_plus(x)
real, dimension(:), allocatable :: f_segfault_plus
real, dimension(:), intent(in) :: x
f_segfault_plus = matmul(b,x)
end function f_segfault_plus
function f_workaround(x)
real, dimension(:), allocatable :: f_workaround
real, dimension(:), intent(in) :: x
real, dimension(:), allocatable :: tmp
allocate(f_workaround(2),tmp(2))
tmp = matmul(b,x)
f_workaround = tmp
end function f_workaround
end module a
program main
use a
implicit none
real, dimension(2) :: x = 1.0, y
! PR61459
y = f_workaround (x)
if (any (f_segfault (x) .ne. y)) call abort
if (any (f_segfault_plus (x) .ne. y)) call abort
! PR58883
if (any (foo () .ne. reshape([1,2,3,4,5,6,7,8],[2,4]))) call abort
contains
function foo()
integer, allocatable :: foo(:,:)
integer, allocatable :: temp(:)
temp = [1,2,3,4,5,6,7,8]
foo = reshape(temp,[2,4])
end function
end program main
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