! { dg-do run } ! { dg-options "-fbounds-check -fno-realloc-lhs" } ! { dg-shouldfail "Fortran runtime error: Incorrect extent in return array in MATMUL intrinsic for dimension 1: is 2, should be 3" } program main real, dimension(3,2) :: a real, dimension(2,3) :: b real, dimension(:,:), allocatable :: ret allocate (ret(3,3)) a = 1.0 b = 2.3 ret = matmul(a,b) ! This is OK deallocate(ret) allocate(ret(2,3)) ret = matmul(a,b) ! This should throw an error. end program main ! { dg-output "Fortran runtime error: Incorrect extent in return array in MATMUL intrinsic for dimension 1: is 2, should be 3" }