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! { dg-do run }
! { dg-options "-fdump-tree-original -fdump-tree-optimized -Warray-temporaries -fbounds-check" }
implicit none
integer :: i, j
integer, parameter :: nx=3, ny=4
integer, parameter, dimension(nx,ny) :: p = &
& reshape ((/ (i**2, i=1,size(p)) /), shape(p))
integer, parameter, dimension(ny,nx) :: q = &
& reshape ((/ (((nx*(i-1)+j)**2, i=1,ny), j=1,nx) /), (/ ny, nx /))
integer, parameter, dimension(nx,nx) :: r = &
& reshape ((/ (i*i, i=1,size(r)) /), shape(r))
integer, parameter, dimension(nx,nx) :: s = &
& reshape ((/ (((nx*(i-1)+j)**2, i=1,nx), j=1,nx) /), (/ nx, nx /))
integer, dimension(nx,ny) :: a, b
integer, dimension(ny,nx) :: c
integer, dimension(nx,nx) :: e, f, g
character(144) :: u, v
a = p
c = transpose(a)
if (any(c /= q)) call abort
write(u,*) transpose(a)
write(v,*) q
if (u /= v) call abort
e = r
f = s
g = transpose(e+f)
if (any(g /= r + s)) call abort
write(u,*) transpose(e+f)
write(v,*) r + s
if (u /= v) call abort
e = transpose(e) ! { dg-warning "Creating array temporary" }
if (any(e /= s)) call abort
write(u,*) transpose(transpose(e))
write(v,*) s
if (u /= v) call abort
e = transpose(e+f) ! { dg-warning "Creating array temporary" }
if (any(e /= 2*r)) call abort
write(u,*) transpose(transpose(e+f))-f
write(v,*) 2*r
if (u /= v) call abort
a = foo(transpose(c))
if (any(a /= p+1)) call abort
write(u,*) foo(transpose(c)) ! { dg-warning "Creating array temporary" }
write(v,*) p+1
if (u /= v) call abort
c = transpose(foo(a)) ! Unnecessary { dg-warning "Creating array temporary" }
if (any(c /= q+2)) call abort
write(u,*) transpose(foo(a)) ! { dg-warning "Creating array temporary" }
write(v,*) q+2
if (u /= v) call abort
e = foo(transpose(e)) ! { dg-warning "Creating array temporary" }
if (any(e /= 2*s+1)) call abort
write(u,*) transpose(foo(transpose(e))-1) ! { dg-warning "Creating array temporary" }
write(v,*) 2*s+1
if (u /= v) call abort
e = transpose(foo(e)) ! { dg-warning "Creating array temporary" }
if (any(e /= 2*r+2)) call abort
write(u,*) transpose(foo(transpose(e)-1)) ! 2 temps { dg-warning "Creating array temporary" }
write(v,*) 2*r+2
if (u /= v) call abort
a = bar(transpose(c))
if (any(a /= p+4)) call abort
write(u,*) bar(transpose(c))
write(v,*) p+4
if (u /= v) call abort
c = transpose(bar(a))
if (any(c /= q+6)) call abort
write(u,*) transpose(bar(a))
write(v,*) q+6
if (u /= v) call abort
e = bar(transpose(e)) ! { dg-warning "Creating array temporary" }
if (any(e /= 2*s+4)) call abort
write(u,*) transpose(bar(transpose(e)))-2
write(v,*) 2*s+4
if (u /= v) call abort
e = transpose(bar(e)) ! { dg-warning "Creating array temporary" }
if (any(e /= 2*r+6)) call abort
write(u,*) transpose(transpose(bar(e))-2)
write(v,*) 2*r+6
if (u /= v) call abort
if (any(a /= transpose(transpose(a)))) call abort ! optimized away
write(u,*) a
write(v,*) transpose(transpose(a))
if (u /= v) call abort
b = a * a
if (any(transpose(a+b) /= transpose(a)+transpose(b))) call abort ! optimized away
write(u,*) transpose(a+b)
write(v,*) transpose(a) + transpose(b)
if (u /= v) call abort
if (any(transpose(matmul(a,c)) /= matmul(transpose(c), transpose(a)))) call abort ! 2 temps { dg-warning "Creating array temporary" }
write(u,*) transpose(matmul(a,c)) ! { dg-warning "Creating array temporary" }
write(v,*) matmul(transpose(c), transpose(a)) ! { dg-warning "Creating array temporary" }
if (u /= v) call abort
if (any(transpose(matmul(e,a)) /= matmul(transpose(a), transpose(e)))) call abort ! 2 temps { dg-warning "Creating array temporary" }
write(u,*) transpose(matmul(e,a)) ! { dg-warning "Creating array temporary" }
write(v,*) matmul(transpose(a), transpose(e)) ! { dg-warning "Creating array temporary" }
if (u /= v) call abort
call baz (transpose(a))
call toto1 (a, transpose (c))
if (any (a /= 2 * p + 12)) call abort
call toto1 (e, transpose (e)) ! { dg-warning "Creating array temporary" }
if (any (e /= 4 * s + 12)) call abort
call toto2 (c, transpose (a))
if (any (c /= 2 * q + 13)) call abort
call toto2 (e, transpose(e)) ! { dg-warning "Creating array temporary" }
if (any (e /= 4 * r + 13)) call abort
call toto2 (e, transpose(transpose(e))) ! { dg-warning "Creating array temporary" }
if (any (e /= 4 * r + 14)) call abort
call toto3 (e, transpose(e))
if (any (e /= 4 * r + 14)) call abort
call titi (nx, e, transpose(e)) ! { dg-warning "Creating array temporary" }
if (any (e /= 4 * s + 17)) call abort
contains
function foo (x)
integer, intent(in) :: x(:,:)
integer :: foo(size(x,1), size(x,2))
foo = x + 1
end function foo
elemental function bar (x)
integer, intent(in) :: x
integer :: bar
bar = x + 2
end function bar
subroutine baz (x)
integer, intent(in) :: x(:,:)
end subroutine baz
elemental subroutine toto1 (x, y)
integer, intent(out) :: x
integer, intent(in) :: y
x = y + y
end subroutine toto1
subroutine toto2 (x, y)
integer, dimension(:,:), intent(out) :: x
integer, dimension(:,:), intent(in) :: y
x = y + 1
end subroutine toto2
subroutine toto3 (x, y)
integer, dimension(:,:), intent(in) :: x, y
end subroutine toto3
end
subroutine titi (n, x, y)
integer :: n, x(n,n), y(n,n)
x = y + 3
end subroutine titi
! No call to transpose
! { dg-final { scan-tree-dump-times "_gfortran_transpose" 0 "original" } }
!
! 24 temporaries
! { dg-final { scan-tree-dump-times "struct\[^\\n\]*atmp" 24 "original" } }
!
! 2 tests optimized out
! { dg-final { scan-tree-dump-times "_gfortran_abort" 39 "original" } }
! { # Commented out as failing at -O0: dg-final { scan-tree-dump-times "_gfortran_abort" 37 "optimized" } }
!
! cleanup
! { dg-final { cleanup-tree-dump "original" } }
! { dg-final { cleanup-tree-dump "optimized" } }
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