[Bug tree-optimization/18463] [4.0 Regression] Moving floating point through an integer register

["pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-11-25 23:29 -------
This is mostly a iv-opts problem.
But note we still don't get the most optimal code with -fno-ivopts:
.L4:
        movl    8(%ebp), %ebx
        movl    (%ebx,%edx,4), %eax
        movl    20(%ebp), %ebx
        movl    %eax, (%esi,%edx,4)
        movl    (%edi,%edx,4), %eax
        movl    %eax, (%ebx,%edx,4)
        incl    %edx
        cmpl    %edx, %ecx
        jg      .L4

But that is because of we are pulling in the load from the agruments into the loop (that is a different 
bug but I think I should mark that as a regression).

We still get the same asm as given in comment #0 with -fivopts still on.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rakdver at gcc dot gnu dot
                   |                            |org
          Component|rtl-optimization            |tree-optimization


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18463