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[Bug tree-optimization/26626] [4.2 Regression] ICE in in add_virtual_operand
- From: "dberlin at dberlin dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Mar 2006 23:31:42 -0000
- Subject: [Bug tree-optimization/26626] [4.2 Regression] ICE in in add_virtual_operand
- References: <bug-26626-12049@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from dberlin at gcc dot gnu dot org 2006-03-09 23:31 -------
Subject: Re: [4.2 Regression] ICE in in
add_virtual_operand
On Thu, 2006-03-09 at 22:54 +0000, pinskia at gcc dot gnu dot org wrote:
>
> ------- Comment #3 from pinskia at gcc dot gnu dot org 2006-03-09 22:54 -------
> The difference between copyprop and before is the following.
> Before:
> rv.0_3 = rv.0_2;
> # VUSE <NMT.7_13>;
> D.1900_4 = rv.0_3->d;
>
> After:
> rv.0_3 = rv.0_2;
> # VUSE <SMT.6>;
> D.1900_4 = rv.0_2->d;
This is nonsensical, and very bad.
>
>
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26626