Re: optimization/5999: ICE for complex*16 divide with -ffast-math on ia64

Re: optimization/5999: ICE for complex*16 divide with -ffast-math on ia64

[jakub]

Synopsis: ICE for complex*16 divide with -ffast-math on ia64

State-Changed-From-To: analyzed->closed
State-Changed-By: jakub
State-Changed-When: Wed Mar 20 01:34:56 2002
State-Changed-Why:
    Fixed.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5999

Re: optimization/5999: ICE for complex*16 divide with -ffast-math on ia64

[jakub]

Synopsis: ICE for complex*16 divide with -ffast-math on ia64

Responsible-Changed-From-To: unassigned->jakub
Responsible-Changed-By: jakub
Responsible-Changed-When: Tue Mar 19 04:44:37 2002
Responsible-Changed-Why:
    Mine.
State-Changed-From-To: open->analyzed
State-Changed-By: jakub
State-Changed-When: Tue Mar 19 04:44:37 2002
State-Changed-Why:
    http://gcc.gnu.org/ml/gcc-patches/2002-03/msg01143.html

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5999

Re: optimization/5999: ICE for complex*16 divide with -ffast-math on ia64

[Toon Moene]

The following reply was made to PR optimization/5999; it has been noted by GNATS.

From: Toon Moene <toon@moene.indiv.nluug.nl>
To: janis187@us.ibm.com
Cc: gcc-gnats@gcc.gnu.org
Subject: Re: optimization/5999: ICE for complex*16 divide with -ffast-math on 
 ia64
Date: Mon, 18 Mar 2002 23:27:58 +0100

 janis187@us.ibm.com wrote:
 
 > >Number:         5999
 > >Category:       optimization
 
 > GCC 3.1 gets a segmentation violation compiling 301.apsi
 > and 168.wupwise from SPEC CPU2000 with "-O2 -ffast-math" on
 > ia64-unknown-linux-gnu.  In both cases this occurs for a
 > divide of a complex*16 variable when expand_expr passes a
 > NULL op0 to expand_binop, which in turn passes it to
 > protect_from_queue.
 
 This might be a duplicate of middle-end/5731.
 
 -- 
 Toon Moene - mailto:toon@moene.indiv.nluug.nl - phoneto: +31 346 214290
 Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
 Maintainer, GNU Fortran 77: http://gcc.gnu.org/onlinedocs/g77_news.html
 Join GNU Fortran 95: http://g95.sourceforge.net/ (under construction)

optimization/5999: ICE for complex*16 divide with -ffast-math on ia64

[janis187]

>Number:         5999
>Category:       optimization
>Synopsis:       ICE for complex*16 divide with -ffast-math on ia64
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Mon Mar 18 13:26:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Janis Johnson
>Release:        gcc version 3.1 20020318 (prerelease)
>Organization:
>Environment:
Itanium; Red Hat Linux release 7.1.94 (Roswell)
>Description:
GCC 3.1 gets a segmentation violation compiling 301.apsi
and 168.wupwise from SPEC CPU2000 with "-O2 -ffast-math" on
ia64-unknown-linux-gnu.  In both cases this occurs for a
divide of a complex*16 variable when expand_expr passes a
NULL op0 to expand_binop, which in turn passes it to
protect_from_queue.

This is a regression from GCC 3.0.4, for which these two
benchmark programs build and run with no problems using
these options.
>How-To-Repeat:
Compile with attached test case with "g77 -O2 -ffast-math".
>Fix:
Unknown.
>Release-Note:
>Audit-Trail:
>Unformatted:
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