c/8439: using an empty struct causes Internal compiler error in instantiate_virtual_regs_1, at function.c:4126

c/8439: using an empty struct causes Internal compiler error in instantiate_virtual_regs_1, at function.c:4126

[rf13]

>Number:         8439
>Category:       c
>Synopsis:       using an empty struct causes Internal compiler error in instantiate_virtual_regs_1, at function.c:4126
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Nov 03 10:26:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     rf13@inf.tu-dresden.de
>Release:        gcc-3.2
>Organization:
>Environment:
Linux 2.4.18-PPP i686,glibc-2.2.4-18.7.0.6
>Description:
c.c: In function `foobar':
c.c:7: Internal compiler error in instantiate_virtual_regs_1, at function.c:4126
>How-To-Repeat:
gcc -c c.c
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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Content-Transfer-Encoding: base64
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Re: c/8439: using an empty struct causes Internal compiler error in instantiate_virtual_regs_1, at function.c:4126

[Raimar Falke]

The following reply was made to PR c/8439; it has been noted by GNATS.

From: Raimar Falke <rf13@inf.tu-dresden.de>
To: gcc-gnats@gcc.gnu.org, nobody@gcc.gnu.org
Cc:  
Subject: Re: c/8439: using an empty struct causes Internal compiler error in instantiate_virtual_regs_1, at function.c:4126
Date: Mon, 4 Nov 2002 20:18:07 +0100

 On Sun, Nov 03, 2002 at 06:26:00PM -0000, gcc-gnats@gcc.gnu.org wrote:
 > Thank you very much for your problem report.
 > It has the internal identification `c/8439'.
 > The individual assigned to look at your
 > report is: unassigned. 
 
 The problem is non-reproducible on a sun:
 
 $ uname -a
 SunOS irz601 5.7 Generic_106541-22 sun4u sparc SUNW,Ultra-2
 $ gcc --version
 gcc (GCC) 3.2
 Copyright (C) 2002 Free Software Foundation, Inc.
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
 $ gcc -c c.c
 $ gcc -c -S c.c
 $ cat c.s
    .file   "c.c"
         .section        ".text"
         .align 4
         .type   foobar,#function
         .proc   020
 foobar:
         !#PROLOGUE# 0
         save    %sp, -112, %sp
         !#PROLOGUE# 1
         st      %i0, [%fp+68]
         ld      [%fp+68], %i0
         add     %i0, 0, %i0
         st      %i0, [%fp+68]
         nop
         ret
         restore
 .LLfe1:
         .size   foobar,.LLfe1-foobar
         .ident  "GCC: (GNU) 3.2"
 $
 
 	Raimar
 
 -- 
  email: rf13@inf.tu-dresden.de
  "The very concept of PNP is a lovely dream that simply does not translate to
   reality. The confusion of manually doing stuff is nothing compared to the
   confusion of computers trying to do stuff and getting it wrong, which they
   gleefully do with great enthusiasm." 
     -- Jinx Tigr in the SDM

Re: c/8439: using an empty struct causes Internal compiler error in instantiate_virtual_regs_1, at function.c:4126

[paolo]

Synopsis: using an empty struct causes Internal compiler error in instantiate_virtual_regs_1, at function.c:4126

State-Changed-From-To: open->analyzed
State-Changed-By: paolo
State-Changed-When: Sun Nov  3 10:31:56 2002
State-Changed-Why:
    Confirmed mainline and 3_2-branch.
    Regression from 2.95.x and 3.0.x -> high priority.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8439