Re: optimization/6177: ia64 ICE with single-element complex array in LAPACK

[Janis Johnson <janis187@us.ibm.com>]

The following reply was made to PR optimization/6177; it has been noted by GNATS.

From: Janis Johnson <janis187@us.ibm.com>
To: janis187@us.ibm.com
Cc: gcc-gnats@gcc.gnu.org, kenner@vlsi1.ultra.nyu.edu
Subject: Re: optimization/6177: ia64 ICE with single-element complex array in LAPACK
Date: Fri, 5 Apr 2002 14:24:45 -0800

 On Thu, Apr 04, 2002 at 08:48:02PM -0000, janis187@us.ibm.com wrote:
 > 
 > >Number:         6177
 > >Category:       optimization
 > >Synopsis:       ia64 ICE with single-element complex array in LAPACK
 > >Class:          ice-on-legal-code
 > >Arrival-Date:   Thu Apr 04 12:56:00 PST 2002
 > >Originator:     Janis Johnson
 > >Release:        gcc version 3.1 20020402 (prerelease)
 > >Environment:
 > Itanium; Red Hat Linux release 7.2 (Enigma)
 > >Description:
 > The 3.1 prerelease compiler gets an ICE compiling file
 > cblat2.f in LAPACK beginning with this change:
 > 
 > Tue Apr  2 06:47:40 2002  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 > 
 >         * stor-layout.c (layout_Output from compiling the attached file (containing only the
 > subroutine that triggers the failure) with -O2 is:
 > 
 > cchk4.f: In subroutine `cchk4':
 > cchk4.f:219: Internal compiler error in change_address_1, at emit-rtl.c:1910
 
 This is a problem on i686-pc-linux-gnu also.  Here's a much smaller
 test case:
 
       subroutine bug
       complex w(1)
       intrinsic conjg
       w(1) = conjg(w(1))
       return
       end
 
 Janis