| Summary: | [4.0 Regression] internal compiler error: in force_decl_die, at dwarf2out.c:12441 | ||
|---|---|---|---|
| Product: | gcc | Reporter: | Carlo Wood <carlo> |
| Component: | debug | Assignee: | Not yet assigned to anyone <unassigned> |
| Status: | RESOLVED FIXED | ||
| Severity: | critical | CC: | dpatel, gcc-bugs, reichelt |
| Priority: | P2 | Keywords: | ice-on-valid-code, monitored |
| Version: | 4.0.0 | ||
| Target Milestone: | 4.0.0 | ||
| Host: | Target: | ||
| Build: | Known to work: | 3.4.0 | |
| Known to fail: | 4.0.0 | Last reconfirmed: | 2004-05-30 19:46:08 |
Confirmed. A slightly simpler test case:
struct B {
int n;
};
struct A : B {
using B::n;
};
Devang Patel, can you look into this as I think this is caused by your patch: 2004-01-27 Devang Patel <dpatel@apple.com> * Makefile.in (dwarf2out.o): Depend on input.h * dbxout.c (dbx_debug_hooks): Add new empty hook for imported_module_or_decl. (xcoff_debug_hooks): Same. * sdbout.c (sdb_debug_hooks): Same. * vmsdbgout.c (vmsdbg_debug_hooks): Same. * debug.c (do_nothing_debug_hooks): Same. (debug_nothing_tree_tree): New function. * debug.h (gcc_debug_hooks): New hook, imported_module_or_decl. * dwarf2out.c: Include input.h. (dwarf2_debug_hooks): Add new hook for imported_module_or_decl. (remove_child_TAG): New function. (dwarf_tag_name): Handle DW_TAG_imported_module. (gen_subprogram_die): Equate decl number to declaration die. Do not remove all children dies while reusing declaration die for definition. Instead, selectively remove only formal parameters. (gen_variable_die): Equate variable decl to declaration die. (gen_field_die): Equate field decl to line number. (force_namespace_die): Replace it with ... (force_decl_die): ... this. (force_type_die): New function. (setup_namespace_context): Replace use of force_namespace_die() with force_decl_die(). (gen_namespace_die): Same. (dwarf2out_imported_module_or_decl): New function. If following patch is reverted than it fixes this ICE. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15736 But that patch was applied to fix Ada bootstrap. Andrew, do you have Ada setup to see if this patches still causes trouble with Ada? Thanks. Oops. I meant following patch http://gcc.gnu.org/ml/gcc-cvs/2004-01/msg01520.html Subject: Re: [3.5 Regression] internal compiler error: in force_decl_die, at dwarf2out.c:12441
>
>
> ------- Additional Comments From dpatel at apple dot com 2004-06-19 19:29 -------
> If following patch is reverted than it fixes this ICE.
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15736
>
> But that patch was applied to fix Ada bootstrap. Andrew, do you have Ada setup to see if this patches
> still causes trouble with Ada?
Which patch, you only gave a link to this bug again? Also Ada is broken on the mainline because of
the tree-ssa merge so I cannot test Ada :(.
Thanks,
Andrew
Fixed by:
* dwarf2out.c (gen_field_die): Equate decl number to die.
* g++.dg/debug/pr15736.cc: New test.
The master branch has been updated by Sam James <sjames@gcc.gnu.org>: https://gcc.gnu.org/g:a287ff2697f0788856a21c99098611a5ae0a4749 commit r15-4827-ga287ff2697f0788856a21c99098611a5ae0a4749 Author: Sam James <sam@gentoo.org> Date: Tue Oct 29 06:00:08 2024 +0000 testsuite: g++.dg: debug: fix test filenames gcc/testsuite/ChangeLog: PR debug/15736 PR debug/46240 * g++.dg/debug/pr15736.cc: Move to... * g++.dg/debug/pr15736.C: ...here. * g++.dg/debug/pr46240.cc: Move to... * g++.dg/debug/pr46240.C: ...here. Just curious... what caused the 20 years of delay? (In reply to Carlo Wood from comment #9) > Just curious... what caused the 20 years of delay? Sam has been auditing the testsuite to find issues like a missnamed testcase (like in this case). So the testcase was not running before but is now since he renamed it. He put the PR # in the changelog so it got into bugzilla to record a related change. |
This bug, or rather a very similar one was fixed not long ago. But it appears still to exist in todays compiler :/ To reproduce compile this: class sbll_node_ct; class sbll_base_ct { protected: sbll_base_ct(void) { } ~sbll_base_ct(void) { } class sbll_node_ct* next; }; class sbll_list_ct: private sbll_base_ct { protected: using sbll_base_ct::next; }; by doing: >g++-cvs-3.5 -c -g test.cc test.cc:12: internal compiler error: in force_decl_die, at dwarf2out.c:12441 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. This is with >g++-cvs-3.5 -v Reading specs from /usr/src/GNU/install/bin/../lib/gcc/i686-redhat-linux/3.5.0/specs Configured with: /usr/src/gcc/gcc-cvs-3.5/configure --prefix=/usr/local/gcc-cvs-3.5 --enable-shared --with-gnu-as --with-gnu-ld --enable-languages=c++ --enable-debug --enable-threads=posix --disable-checking --with-system-zlib --enable-__cxa_atexit --host=i686-redhat-linux Thread model: posix gcc version 3.5.0 20040530 (experimental)