Re: [patch] Fix for PR31617

["Richard Guenther" <richard dot guenther at gmail dot com>]

On 4/24/07, Olga Golovanevsky <OLGA@il.ibm.com> wrote:
> ok, I think here is what we get to (patch and testcase).
>
> ok to commit?

Ok with the typo below fixed.

Richard.

> Olga
>
> Index: fold-const.c
> ===================================================================
> --- fold-const.c  (revision 124098)
> +++ fold-const.c  (working copy)
> @@ -13216,6 +13216,7 @@
>
>      case INTEGER_CST:
>        if (TREE_CODE (bottom) != INTEGER_CST
> +       || integer_rezop (bottom)
                   ^^^^^^^^^^

integer_zerop (bottom)

>         || (TYPE_UNSIGNED (type)
>             && (tree_int_cst_sgn (top) < 0
>               || tree_int_cst_sgn (bottom) < 0)))
> Index: ChangeLog
> ===================================================================
> --- ChangeLog     (revision 124098)
> +++ ChangeLog     (working copy)
> @@ -1,3 +1,9 @@
> +2007-04-24  Richard Guenther  <rguenther@suse.de>
> +         Olga Golovanevsky  <olga@il.ibm.com>
> +
> +     * fold-const.c (multiple_of_p): Check for bottom
> +     to be zero.
> +
>  2007-04-24  Andreas Krebbel  <krebbel1@de.ibm.com>
>
>       * config/s390/s390.md ("*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs_ibm",
> Index: testsuite/ChangeLog
> ===================================================================
> --- testsuite/ChangeLog (revision 124098)
> +++ testsuite/ChangeLog (working copy)
> @@ -1,3 +1,8 @@
> +2007-04-24  Andrew Pinski  <andrew_pinski@playstation.sony.com>
> +         Olga Golovanevsky  <olga@il.ibm.com>
> +
> +     * g++.dg/other/str_empty.C: New test.
> +
>  2007-04-24  Richard Sandiford  <richard@nildram.co.uk>
>
>       * gcc.target/mips/madd-1.c, gcc.target/mips/madd-2.c,
>
> Testcase:
>
> // PR c++/31617
> // Segfault in integer_rezop
> // Origin: Andrew Pinski  <andrew_pinski@playstation.sony.com>
> // { dg-do compile }
> // { dg-options "-O2" }
>
> struct polynomial {
>   ~polynomial ();
> };
>
> void spline_rep1 ()
> {
>   new polynomial[0];
> }