Re: [coldfire-gnu-discuss] Toolchain, asm parameters numbering and optimisation flags

[Daniel Jacobowitz <dan@xxxxxxxxxxxxxxxx>]

This is the same problem as Nathan was talking about.

On Wed, Dec 06, 2006 at 12:24:02AM +0100, fred@xxxxxxxxxxxx wrote:
> "move.l (%[X])+, %[e1];\n"
> "move.l (%[Y])+, %[e2];\n"
> "swap %[e1];"
> "swap %[e2];"
> "move.w %[e1], %[t1];"
> "move.w %[e2], %[t2];"

You are setting these.  Therefore they are not inputs to your asm;
inputs are only read, not modified.

> : [sum]"=&d" (sum), [len]"+&d"(len)
> : [X]"a"(x), [Y]"a"(y), [t1]"d"(t1), [t2]"d"(t2), [e1]"d"(e1), [e2]"d"(e2)

But this says that t1 is only an input.

-- 
Daniel Jacobowitz
CodeSourcery