gcc-2.95.2 problem with target powerpc-eabi

[Christoph Hirzel]

Hi

There seems to be a problem in copying 64 Bit integers
or structures with gcc-2.95.2 for target powerpc-eabi.
If I compile the following code for a PowerPC 603
(option -mcpu=603)

unsigned long long u1;
unsigned long long u2;

void Test()
{
        u1 = u2;
}

the compiler generates the following assembler code

        lis 11,address@hidden
        la 9,address@hidden(11)
        lis 10,address@hidden
        la 11,address@hidden(10)
        lfd 0,0(11)
        stfd 0,0(9)

The compiler seems to optimize the copy by using load (lfd)
and store (stfd) double float instructions.

Now my question. How can I avoid this, without using the
compiler option -msoft-float ?
I think it should be possible if I make some adjustmenst
in the rs6000.md /.c /.h files and then rebuild the compiler.

Has anybody any experience in doing this ?

Thanks

Christoph Hirzel
Tüfiwies 26
CH-8332 Russikon
Switzerland