RE: [avr-gcc-list] foo++, subi vs inc?

[Weddington, Eric]

> -----Original Message-----
> From: 
> address@hidden 
> [mailto:address@hidden
> org] On Behalf Of Sparr
> Sent: Wednesday, November 12, 2008 3:39 PM
> To: Marek Michalkiewicz
> Cc: address@hidden
> Subject: Re: [avr-gcc-list] foo++, subi vs inc?
> 
> An ubuntu bug is keeping me from [easily] working with the gcc source,
> having that information when i finally do get started will save some
> time.  I will experiment with finding out why it is picking subi
> instead of inc, but I think inc should come ahead of subi in general,
> so that's at least one thing I can put in a patch.

Keep in mind that SUBI will set the carry flag. INC does not set the carry 
flag. I don't know if that is important in this particular case, but it might 
be useful info so you don't introduce regressions. Speaking of which, if you 
develop a patch, you need to be sure to run the GCC Regression Test Suite.

> 
> PS: is gccint.info a typo?

gccint.info is the GCC Internals documentation in the 'info' format.