Re: optimization/7687: [3.2 regression] ICE in use_thunk, at cp/method.c:412

Re: optimization/7687: [3.2 regression] ICE in use_thunk, at cp/method.c:412

[Janis Johnson]

The following reply was made to PR optimization/7687; it has been noted by GNATS.

From: Janis Johnson <janis187@us.ibm.com>
To: j.vanbemmel@home.nl, gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org,
   gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org, rth@redhat.com
Cc:  
Subject: Re: optimization/7687: [3.2 regression] ICE in use_thunk, at 
 cp/method.c:412
Date: Fri, 20 Dec 2002 14:49:08 -0800

 The regression reported in PR optimization/7687, which is
 still broken on the 3.2 branch, was fixed on the mainline
 with this patch:
 
 2002-10-22  Richard Henderson  <rth@redhat.com>
 
         * target.h
         * target-def.h
         * hooks.c
         * hooks.h:
         * system.h
 
         * config/alpha/alpha.c
         * config/arm/arm.c, config/cris/cris.c, config/frv/frv.c,
         config/i960/i960.c, config/ia64/ia64.c, config/m68k/m68k.c,
         config/mmix/mmix.c, config/pa/pa.c, config/sparc/sparc.c,
         config/stormy16/stormy16.c: Similarly.
 
         * config/i386/i386.c
 
         * config/rs6000/rs6000.c
         * config/rs6000/rs6000-protos.h
         * config/rs6000/sysv4.h
         * config/rs6000/xcoff.h
 
         * config/s390/s390.c
 
         * config/vax/vax.c
         * config/vax/vax-protos.h
         * config/vax/vax.h
 
 cp/:
 2002-10-22  Richard Henderson  <rth@redhat.com>
 
         * method.c
 
 Here's a small test case that causes the 3.2 branch compiler to ICE
 on i686-linux:
 
 -------------------
 class A {
 public:
   virtual void f1();
 };
 class B {
 public:
   virtual void f2();
 };
 class C : public A, public B
 {
 public:
   virtual void f1();
   virtual void f2();
 };
 
 void C::f2() {}
 -------------------
 
 Output from the the 3.2 branch compiler with -fPIC -mregparm=3:
 
 7687.C: In member function `void C::_ZThn4_N1C2f2Ev()':
 7687.C:16: Internal compiler error in x86_output_mi_thunk, at
    config/i386/i386.c:12655
 Please submit a full bug report,
 with preprocessed source if appropriate.
 See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7687
 
 
 

Re: optimization/7687: [3.2 regression] ICE in use_thunk, at cp/method.c:412

[bangerth]

Synopsis: [3.2 regression] ICE in use_thunk, at cp/method.c:412

State-Changed-From-To: analyzed->closed
State-Changed-By: bangerth
State-Changed-When: Mon Jan  6 09:33:51 2003
State-Changed-Why:
    Given Richard's comment, this bug will not be fixed for
    the 3.2 branch any more.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7687