rt_gccstream/gcc/testsuite/gfortran.dg/transpose_conjg_1.f90

38 lines
1.2 KiB
Fortran

! { dg-do run }
! Tests the fix for PR35740, where the trick of interchanging the descriptor
! dimensions to implement TRANSPOSE did not work if it is an argument of
! an elemental function - eg. CONJG. The fix forces a library call for such
! cases. During the diagnosis of the PR, it was found that the scalarizer was
! completely thrown if the argument of TRANSPOSE was a non-variable
! expression; eg a + c below. This is also fixed by the library call.
!
! Contributed by Dominik Muth <dominik.muth@gmx.de>
!
program main
implicit none
complex, dimension(2,2) :: a,b,c,d
a(1,1) = (1.,1.)
a(2,1) = (2.,2.)
a(1,2) = (3.,3.)
a(2,2) = (4.,4.)
!
b = a
b = conjg(transpose(b))
d = a
d = transpose(conjg(d))
if (any (b /= d)) call abort ()
!
d = matmul (b, a )
if (any (d /= matmul (transpose(conjg(a)), a))) call abort ()
if (any (d /= matmul (conjg(transpose(a)), a))) call abort ()
!
c = (0.0,1.0)
b = conjg(transpose(a + c))
d = transpose(conjg(a + c))
if (any (b /= d)) call abort ()
!
d = matmul (b, a + c)
if (any (d /= matmul (transpose(conjg(a + c)), a + c))) call abort ()
if (any (d /= matmul (conjg(transpose(a + c)), a + c))) call abort ()
END program main