thanks again.
fixed both - 3.2 and -current.
the code is in cvs.
cheers,
~d
On Thursday 27 November 2003 12:13, Dmitry wrote:
> hm...
> thanks for spotting this.
> will fix it in a minute.
> cheers,
> ~d
>
> On Wednesday 26 November 2003 22:18, Michael McClafferty wrote:
> > Included below is a small piece of code that attempts
> > to "shift down" some unsigned long's in an array. The
> > 2nd assignment in "shiftArray()" fails:
> >
> >
> > // Code start --- mspgcc_bug.c ---------------------------------
> > //
> > unsigned long temp[3] = {
> > 0x11112222L,
> > 0x33334444L,
> > 0x00000000L
> > };
> >
> > void shiftArray(unsigned long *t)
> > {
> > t[2] = t[1]; // OK - Code generated was (r15 is pointer to temp):
> > // mov 4(r15), 8(r15)
> > // mov 6(r15), 10(r15)
> >
> > t[1] = t[0]; // Fails - Generated code:
> > // mov @r15+, 4(r15)
> > // mov @r15+, 6(r15)
> > }
> >
> > int main(void)
> > {
> > shiftArray(temp);
> > return 0;
> > }
> > //
> > // Code end ---------------------------------------------
> >
> >
> > The problem is that r15 is being autoincremented in the last
> > two fetches/sources. It's also being used as an index for the
> > destination, without compensating for the fact that the fetches
> > have altered r15.
> >
> > Background info:
> >
> > OS: Redhat 9.0
> > Tools: Built from sources, Oct 20, 2003
> > CPU: MSP430F149
> > Cmd Line: msp430-gcc -mmcu=msp430x149 -O2 -Wall -g -o mspgcc_bug
> > mspgcc_bug.c
> >
> > Am I doing something stupid, or is this really a compiler bug?
> >
> > Thanks,
> > Mike
> >
> >
> >
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