mirror of
https://github.com/autc04/Retro68.git
synced 2024-09-28 18:56:06 +00:00
54 lines
1.2 KiB
Fortran
54 lines
1.2 KiB
Fortran
!{ dg-do run }
|
|
! Test MATMUL for various arguments and results
|
|
! (test values checked with GNU octave).
|
|
! PR18857 was due to an incorrect assertion that component base==0
|
|
! for both input arguments and the result.
|
|
! provided by Paul Thomas - pault@gcc.gnu.org
|
|
|
|
Program matmul_1
|
|
integer, parameter :: N = 5
|
|
integer, parameter :: T = 4
|
|
integer :: i
|
|
real(kind=T), dimension(:,:), allocatable :: a, b, c
|
|
real(kind=T), dimension(N,N) :: x, y, z
|
|
|
|
allocate (a(2*N, N), b(N, N), c(2*N, N))
|
|
|
|
do i = 1, 2*N
|
|
a(i, :) = real (i)
|
|
end do
|
|
b = 4.0_T
|
|
|
|
do i = 1, N
|
|
x(i, :) = real (i)
|
|
end do
|
|
y = 2.0_T
|
|
|
|
! whole array
|
|
|
|
z = 0.0_T
|
|
z = matmul (x, y)
|
|
if (sum (z) /= 750.0_T) STOP 1
|
|
|
|
! array sections
|
|
|
|
c = 0.0_T
|
|
c(1:3,1:2) = matmul (a(7:9,3:N), b(3:N,3:4))
|
|
if (sum (c) /= 576.0_T) STOP 2
|
|
|
|
! uses a temp
|
|
|
|
c = 0.0_T
|
|
c = matmul (a, b + x)
|
|
if (sum (c) /= 9625.0_T) STOP 3
|
|
|
|
! returns to a temp
|
|
|
|
c = 0.0_T
|
|
c = a + matmul (a, b)
|
|
if (sum (c) /= 5775.0_T) STOP 4
|
|
|
|
deallocate (a, b, c)
|
|
|
|
end program matmul_1
|