------- Comment #16 from burnus at gcc dot gnu dot org 2010-07-09 12:26 ------- (In reply to comment #13) > What about
> dudx = ddx(u(:,:,2)) > real function ddx(array) > real, dimension(:,:) :: array > call bar(u) > ddx = array(1,1) > AFAICS, this is legal and would require a temporary. I don't see why: You never have the same variable on the LHS and on the RHS. On the LHS is "dudx" == "ddx" while on the RHS is "u" == "array". As I cannot see how "u" and "dudx" can alias, I don't think one needs any temporary. Not even in any function call as the dummies are non-CONTIGUOUS assumed-shape arrays. (Otherwise, a temporary is needed as the actual argument is not simple contiguous [actually: it is known not to be contiguous].) The result 3.0 looks also fine and all my compiles produce it. > Note also that it "fixes" pr44744. Nevertheless, one should leave the PR open as the bounds checking is obviously missing. (Though, one should change the title after committal.) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44773
