------- Comment #9 from rguenther at suse dot de 2009-01-22 12:28 -------
Subject: Re: [4.4 Regression] ICE in set_value_range,
at tree-vrp.c:398
On Thu, 22 Jan 2009, bonzini at gnu dot org wrote:
> ------- Comment #8 from bonzini at gnu dot org 2009-01-22 12:10 -------
> Fixing FRE still causes an ICE for this:
>
> /* { dg-do compile } */
> /* { dg-options "-O2 --std=gnu99" } */
>
> /* This variable needed only to exercise FRE instead of CCP. */
> unsigned char g;
>
> extern void abort();
>
> void f (long long int p)
> {
> g = 255;
> /* { dg-warning "constant is" "" { target *-*-* } 14 } */
> /* { dg-warning "overflow" "" { target *-*-* } 14 } */
> if (p >= -9223372036854775808LL - (signed char) g)
> p = 1;
>
> if (p)
> abort ();
> }
>
> Should I create a separate bug and submit what I have?
Yes.
Thanks,
Richard.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38932
