[Bug target/11180] [avr-gcc] Optimization decrease performance of struct assignment.

[schlie at comcast dot net]

------- Additional Comments From schlie at comcast dot net  2005-06-26 15:06 -------
(In reply to comment #7)
> (In reply to comment #6)
> > The problem here is that gcc is using  a DImode register to handle 6 byte
> > (int+long) structure. Why I have no idea!
> This is so it does not store it on the stack.  As I said in comment #5, this is a target issue and have 
> nothing to do with DImode.

It would seem more desireable given the intended purpose to avoid pushing it on the stack
so that it's elements may be more effeciencly accessed, that it's coresponding elements be
allocated within the register file (as opposed to the whole struct remaining packed into an
alllocated DI mode integer), so that it's elements may be effeciently accessed without
needing to rip them out or reassemble them into the otherwise packed monolithic structure?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11180