! { dg-do run } ! { dg-options "-Warray-temporaries" } ! PR 71961 - no array temporary was created. ! Original test case by Joost VandeVondele program main implicit none integer :: i integer, dimension(:,:), pointer :: a integer, dimension(:,:), allocatable :: b ALLOCATE(a(4,4),b(4,2)) a=1 ; b=2 a(:,1:2)=matmul(a(:,1:4),b(:,:)) ! { dg-warning "Creating array temporary" } if (any(a /= reshape((/8,8,8,8,8,8,8,8,1,1,1,1,1,1,1,1/),(/4,4/)))) & call abort a = reshape([((-1**i)*i,i=1,16)],[4,4]) b = reshape([((-1**(i-1))*i**2,i=1,8)],[4,2]) b(1:2,1:2) = matmul(a(1:2,:),b) ! { dg-warning "Creating array temporary" } if (any(b /= reshape([310, 340, -9, -16, 1478, 1652, -49, -64],[4,2]))) & call abort deallocate(a) deallocate(b) end program main