[Bug c++/52247] New: [4.5/4.6/4.7 Regression] ICE with asm goto

[Bug c++/52247] New: [4.5/4.6/4.7 Regression] ICE with asm goto

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52247

             Bug #: 52247
           Summary: [4.5/4.6/4.7 Regression] ICE with asm goto
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: jakub@gcc.gnu.org
        ReportedBy: jakub@gcc.gnu.org


// { dg-do compile }

template <int N>
bool
bar ()
{
  __asm goto ("" : : : : lab);
  return true;
lab:
  return false;
}

bool
foo ()
{
  return bar<0> ();
}

ICEs, because pt.c doesn't adjust the LABEL_DECL properly.

[Bug c++/52247] [4.5/4.6/4.7 Regression] ICE with asm goto

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52247

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.5.4

[Bug c++/52247] [4.5/4.6/4.7 Regression] ICE with asm goto

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52247

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-14 15:48:16 UTC ---
Created attachment 26660
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26660
gcc47-pr52247.patch

Untested fix.

[Bug c++/52247] [4.5/4.6/4.7 Regression] ICE with asm goto

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52247

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-14 19:51:06 UTC ---
Author: jakub
Date: Tue Feb 14 19:51:01 2012
New Revision: 184229

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=184229
Log:
    PR c++/52247
    * pt.c (tsubst_copy_asm_operands): For LABEL_DECL values call
    lookup_label on label's name and set TREE_USED.

    * g++.dg/template/asmgoto1.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/template/asmgoto1.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/pt.c
    trunk/gcc/testsuite/ChangeLog

[Bug c++/52247] [4.5/4.6 Regression] ICE with asm goto

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52247

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-14 23:36:24 UTC ---
Author: jakub
Date: Tue Feb 14 23:36:19 2012
New Revision: 184244

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=184244
Log:
    Backported from mainline
    2012-02-14  Jakub Jelinek  <jakub@redhat.com>

    PR c++/52247
    * pt.c (tsubst_copy_asm_operands): For LABEL_DECL values call
    lookup_label on label's name and set TREE_USED.

    * g++.dg/template/asmgoto1.C: New test.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/g++.dg/template/asmgoto1.C
Modified:
    branches/gcc-4_6-branch/gcc/cp/ChangeLog
    branches/gcc-4_6-branch/gcc/cp/pt.c
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog

[Bug c++/52247] [4.5 Regression] ICE with asm goto

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52247

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-02-20
     Ever Confirmed|0                           |1

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-02-20 21:40:12 UTC ---
Confirmed.

[Bug c++/52247] [4.5 Regression] ICE with asm goto

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52247

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2

[Bug c++/52247] [4.5 Regression] ICE with asm goto

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52247

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|4.5.4                       |4.6.3

--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-02 10:21:41 UTC ---
Fixed in 4.6.3.