Re: [avr-gcc-list] Missing compiler optimizations?

[Erik Walthinsen]

Nigel Winterbottom wrote:
> What sparked my response was the fact that in your hand written code
> (pasted below) you haven't stacked "caller saves" registers around
> your function call.

Oh...  Yeah, in this case that's because I know a priori what the 
function does.  So I guess as far as register saves and usage the 
compiler is probably doing the best it can with what it can know without 
tracing all the way down in the called functions.

The lack of sane code for a number of common idioms is really my main 
concern. As soon as I finish my current project (contract), I'll see if 
I can build and test CVS GCC-4.1.x and see how that does with some of 
the more common constructs.