The following valid code snippet triggers an ICE on trunk when compiled with "-fpermissive": =================== void foo(); void bar() { try { foo(); } catch (...) {} catch (int) {} } =================== bug.cc: In function 'void bar()': bug.cc:6:3: warning: '...' handler must be the last handler for its try block bug.cc:3:6: internal compiler error: Segmentation fault Please submit a full bug report, [etc.] The bug appeared between 2009-09-01 and 2009-09-17.
I assume this was broken by rth's EH rewrite. Richard, is this easy to fix or should we just change the permerror to a regular error?
I have a patch: http://gcc.gnu.org/ml/gcc-patches/2009-11/msg01474.html
Subject: Bug 41906 Author: matz Date: Fri Nov 27 13:08:58 2009 New Revision: 154704 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=154704 Log: PR c++/41906 * tree-eh.c (lower_catch): Stop after expanding a catch-all. testsuite/ * g++.dg/tree-ssa/pr41906.C: New testcase. Added: trunk/gcc/testsuite/g++.dg/tree-ssa/pr41906.C Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-eh.c
Fixed.
Subject: Bug 41906 Author: hjl Date: Fri Dec 11 23:36:24 2009 New Revision: 155184 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155184 Log: Backport testcases from trunk. 2009-12-11 H.J. Lu <hongjiu.lu@intel.com> Backport from mainline: 2009-12-11 Dodji Seketeli <dodji@redhat.com> PR c++/42225 * g++.dg/template/typedef24.C: New test. * g++.dg/template/typedef25.C: New test. 2009-12-11 Dodji Seketeli <dodji@redhat.com> PR c++/42251 * g++.dg/template/const3.C: New test. 2009-12-10 Jakub Jelinek <jakub@redhat.com> PR c++/42317 * g++.dg/opt/dtor2.C: New test. * g++.dg/opt/dtor2.h: New file. * g++.dg/opt/dtor2-aux.cc: New file. 2009-12-10 Jan Hubicka <jh@suse.cz> PR middle-end/42110 * g++.dg/torture/pr42110.C: new file. 2009-12-07 Jakub Jelinek <jakub@redhat.com> PR debug/42244 * gcc.dg/debug/pr42244.c: New test. 2009-12-04 David Daney <ddaney@caviumnetworks.com> PR rtl-optimization/42164 * gcc.c-torture/compile/pr42164.c: New test. 2009-12-03 Jason Merrill <jason@redhat.com> PR c++/41611 * g++.dg/abi/guard2.C: New. 2009-12-03 Dodji Seketeli <dodji@redhat.com> PR c++/42217 * g++.dg/other/bitfield4.C: New test. 2009-12-03 Jakub Jelinek <jakub@redhat.com> PR c++/42256 * g++.dg/inherit/thunk11.C: New test. * g++.dg/inherit/thunk11.h: New file. * g++.dg/inherit/thunk11-aux.cc: New file. 2009-12-01 Martin Jambor <mjambor@suse.cz> PR tree-optimization/42237 * gcc.c-torture/compile/pr42237.c: New test. 2009-12-01 Paolo Carlini <paolo.carlini@oracle.com> PR c++/42057 * g++.dg/parse/crash54.C: New. 2009-11-30 Martin Jambor <mjambor@suse.cz> PR middle-end/42196 * gcc.c-torture/compile/pr42196-1.c: New test. * gcc.c-torture/compile/pr42196-2.c: New test. * gcc.c-torture/compile/pr42196-3.c: New test. 2009-11-30 Dodji Seketeli <dodji@redhat.com> PR c++/42069 * g++.dg/template/typedef23.C: New test. 2009-11-29 H.J. Lu <hongjiu.lu@intel.com> PR tree-optimization/41961 * g++.dg/tree-ssa/pr41961.C: New. 2009-11-29 Ira Rosen <irar@il.ibm.com> PR tree-optimization/42193 * gcc.dg/vect/pr42193.c: New test. 2009-11-28 Richard Guenther <rguenther@suse.de> PR tree-optimization/42183 * g++.dg/torture/pr42183.C: New testcase. 2009-11-27 Martin Jambor <mjambor@suse.cz> PR middle-end/42006 * gcc.c-torture/execute/pr42006.c: New test. 2009-11-27 Michael Matz <matz@suse.de> PR rtl-optimization/42084 * gcc.dg/pr42084.c: New test. 2009-11-27 Michael Matz <matz@suse.de> PR c++/41906 * g++.dg/tree-ssa/pr41906.C: New testcase. 2009-11-26 Michael Matz <matz@suse.de> PR tree-optimization/41905 * g++.dg/tree-ssa/pr41905.C: New testcase. 2009-11-24 Richard Guenther <rguenther@suse.de> PR tree-optimization/42142 * gcc.c-torture/execute/pr42142.c: New testcase. 2009-11-24 Martin Jambor <mjambor@suse.cz> PR tree-optimization/42154 * gcc.c-torture/execute/pr42154.c: New test. 2009-11-21 Martin Jambor <mjambor@suse.cz> PR middle-end/42025 * gcc.c-torture/compile/pr42025-1.c: New test. * gcc.c-torture/compile/pr42025-2.c: New test. 2009-11-21 Jakub Jelinek <jakub@redhat.com> PR tree-optimization/42078 * gcc.dg/pr42078.c: New test. Added: branches/gcc-4_4-branch/gcc/testsuite/g++.dg/abi/guard2.C - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/abi/guard2.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/inherit/thunk11-aux.cc - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/inherit/thunk11-aux.cc branches/gcc-4_4-branch/gcc/testsuite/g++.dg/inherit/thunk11.C - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/inherit/thunk11.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/inherit/thunk11.h - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/inherit/thunk11.h branches/gcc-4_4-branch/gcc/testsuite/g++.dg/opt/dtor2-aux.cc - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/opt/dtor2-aux.cc branches/gcc-4_4-branch/gcc/testsuite/g++.dg/opt/dtor2.C - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/opt/dtor2.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/opt/dtor2.h - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/opt/dtor2.h branches/gcc-4_4-branch/gcc/testsuite/g++.dg/other/bitfield4.C - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/other/bitfield4.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/parse/crash54.C - copied unchanged from r155172, trunk/gcc/testsuite/g++.dg/parse/crash54.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/template/const3.C - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/template/const3.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/template/typedef23.C - copied unchanged from r155181, trunk/gcc/testsuite/g++.dg/template/typedef23.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/template/typedef24.C - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/template/typedef24.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/template/typedef25.C - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/template/typedef25.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/torture/pr42110.C - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/torture/pr42110.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/torture/pr42183.C - copied unchanged from r155181, trunk/gcc/testsuite/g++.dg/torture/pr42183.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/tree-ssa/pr41905.C - copied unchanged from r155182, trunk/gcc/testsuite/g++.dg/tree-ssa/pr41905.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/tree-ssa/pr41906.C - copied unchanged from r155182, trunk/gcc/testsuite/g++.dg/tree-ssa/pr41906.C branches/gcc-4_4-branch/gcc/testsuite/g++.dg/tree-ssa/pr41961.C - copied unchanged from r155181, trunk/gcc/testsuite/g++.dg/tree-ssa/pr41961.C branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42025-1.c - copied unchanged from r155182, trunk/gcc/testsuite/gcc.c-torture/compile/pr42025-1.c branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42025-2.c - copied unchanged from r155182, trunk/gcc/testsuite/gcc.c-torture/compile/pr42025-2.c branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42164.c - copied unchanged from r155170, trunk/gcc/testsuite/gcc.c-torture/compile/pr42164.c branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42196-1.c - copied unchanged from r155181, trunk/gcc/testsuite/gcc.c-torture/compile/pr42196-1.c branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42196-2.c - copied unchanged from r155181, trunk/gcc/testsuite/gcc.c-torture/compile/pr42196-2.c branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42196-3.c - copied unchanged from r155181, trunk/gcc/testsuite/gcc.c-torture/compile/pr42196-3.c branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42237.c - copied unchanged from r155171, trunk/gcc/testsuite/gcc.c-torture/compile/pr42237.c branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/execute/pr42006.c - copied unchanged from r155181, trunk/gcc/testsuite/gcc.c-torture/execute/pr42006.c branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/execute/pr42142.c - copied unchanged from r155182, trunk/gcc/testsuite/gcc.c-torture/execute/pr42142.c branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/execute/pr42154.c - copied unchanged from r155182, trunk/gcc/testsuite/gcc.c-torture/execute/pr42154.c branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/debug/pr42244.c - copied unchanged from r155170, trunk/gcc/testsuite/gcc.dg/debug/pr42244.c branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/pr42078.c - copied unchanged from r155182, trunk/gcc/testsuite/gcc.dg/pr42078.c branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/pr42084.c - copied unchanged from r155182, trunk/gcc/testsuite/gcc.dg/pr42084.c branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/vect/pr42193.c - copied unchanged from r155181, trunk/gcc/testsuite/gcc.dg/vect/pr42193.c Modified: branches/gcc-4_4-branch/gcc/testsuite/ChangeLog