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Re: [avr-gcc-list] [avr] GCCAVR Bug
From: |
Jason Kyle |
Subject: |
Re: [avr-gcc-list] [avr] GCCAVR Bug |
Date: |
Tue Jan 9 21:39:04 2001 |
Anyone know if this was fixed? Seem to recall something about it a long
time ago. Ron is using the Volker Oth win32 build (2.95.2 + patch). Tried
it with avr-gcc-20001225 libc-20000730 and the code looked okay to me.
At 01:14 8/01/01 -0800, you wrote:
>Hi All
>
>This little C snippet embodies a bug in gccavr that cost me considerable
>trackdown time in a larger program. The key is the if statement combined
>with the following statement containing an array reference. If you run this
>in AVRStudio the array statement gets executed every time. Doesn't matter if
>the array is local or global. Change the following statement to a simple
>variable assign and all is well. Change the "if" to (a > b) and all is well.
>
>#include <stdlib.h>
>
>#define LIMIT 25.0
>#define MAXENTRY 5
>
>int main(void);
>
>int sum[MAXENTRY];
>
>int main(void)
>{
> int i;
> float a, b;
>
> a = 10.0;
> b = LIMIT;
> for (i=0; i<MAXENTRY; i++)
> {
> if (a >= b)
> {
> sum[i] = sum[i] + 1;
> }
> b += LIMIT;
> }
>
> return 0;
>}
>
>I was going to post this off to Volker but he seems to have vanished. I then
>thought I would go look for the bug in the gccavr source, but the actual
>compiler code that generates the avr statements does not seem to be part of
>his package.
>
>Does anybody know who we can refer gccavr bugs to? Does anybody know whether
>the AVR port to gcc is available so we can try to fix this sort of bug
>ourselves?
>
>Cheers
>Ron Kreymborg
>
>
>
>
>AVR, it's just better.
>
>
>
>
>
>_______________________________________________
>avr-gcc-list mailing list
>address@hidden
>http://avr.jpk.co.nz/mailman/listinfo/avr-gcc-list
>
>