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* [Bug c++/47987] New: ICE on legal code (when attempting to inline non-implicitly instantiated template member function)
@ 2011-03-04 11:37 niemayer at isg dot de
2011-03-04 11:43 ` [Bug c++/47987] " niemayer at isg dot de
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: niemayer at isg dot de @ 2011-03-04 11:37 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47987
Summary: ICE on legal code (when attempting to inline
non-implicitly instantiated template member function)
Product: gcc
Version: 4.5.2
Status: UNCONFIRMED
Severity: critical
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: niemayer@isg.de
Created attachment 23540
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23540
preprocessed and gzipped legal C++ code causing ICE with gcc 4.5.[0-2]
When compiling the attached "crash.ii" file using gcc 4.5.[012] with
> gcc -O3 -fno-implicit-templates -c crash.ii -o crash.o
gcc crashes with a segmentation fault:
> crashtest.cxx: In static member function 'static bool LKV::MatchEntity::init_text_2_3(const LKV::Str&, LKV::Str&, LKV::Str&, LKV::Array<long unsigned int, true, LKV::_T<LKV::AbsPtr>, long unsigned int>*, LKV::Array<long unsigned int, true, LKV::_T<LKV::AbsPtr>, long unsigned int>*)':
crashtest.cxx:130:3:
> internal compiler error: Segmentation fault
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <http://gcc.gnu.org/bugs.html> for instructions.
The same code is compiled fine by gcc 4.4.*, it also compiles fine with
-O[0-2].
Notice that this code is part of a library that uses explicit template
instantiations, intriguingly when compiling with "-fimplicit-templates", gcc
4.5.* does not crash - which let's me wonder how "just doing less" can actually
trigger such a bug :-)
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug c++/47987] ICE on legal code (when attempting to inline non-implicitly instantiated template member function) 2011-03-04 11:37 [Bug c++/47987] New: ICE on legal code (when attempting to inline non-implicitly instantiated template member function) niemayer at isg dot de @ 2011-03-04 11:43 ` niemayer at isg dot de 2011-03-04 13:29 ` rguenth at gcc dot gnu.org 2011-09-29 17:57 ` paolo.carlini at oracle dot com 2 siblings, 0 replies; 4+ messages in thread From: niemayer at isg dot de @ 2011-03-04 11:43 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47987 --- Comment #1 from niemayer at isg dot de 2011-03-04 11:43:25 UTC --- The line that gcc reports to cause the ICE contains: if (offset_a2->preallocate(text_1.length())) { "offset_a2" is an instance of class Array<unsigned long, true, _T<AbsPtr>, unsigned long> - if that class is declared to be an "extern template by extern template class Array<unsigned long, true, _T<AbsPtr>, unsigned long>; before the function that causes the ICE, compilation works fine as well as it does with implicit template instantiation. (All class names within namespace "LKV"). ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/47987] ICE on legal code (when attempting to inline non-implicitly instantiated template member function) 2011-03-04 11:37 [Bug c++/47987] New: ICE on legal code (when attempting to inline non-implicitly instantiated template member function) niemayer at isg dot de 2011-03-04 11:43 ` [Bug c++/47987] " niemayer at isg dot de @ 2011-03-04 13:29 ` rguenth at gcc dot gnu.org 2011-09-29 17:57 ` paolo.carlini at oracle dot com 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2011-03-04 13:29 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47987 Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2011.03.04 13:29:35 CC| |jamborm at gcc dot gnu.org Known to work| |4.6.0 Ever Confirmed|0 |1 --- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-03-04 13:29:35 UTC --- Confirmed. Seems to be fixed on trunk. On the brach I get with checking enabled: > ../../gcc45-g/gcc/cc1plus -quiet t.ii -O -fipa-cp -fipa-cp-clone -fno-implicit-templates crashtest.cxx:455:22: error: missing callgraph edge for call stmt: # .MEM_54 = VDEF <.MEM_53(D)> D.48510_24 = LKV::Array<long unsigned int, true, LKV::_T<LKV::AbsPtr>, long unsigned int>::preallocate (this_6(D), ni_2); bool LKV::Array<T, use_memmove, PTR, STYPE>::extend_with_value(size_type, const X&, bool) [with X = long unsigned int, T = long unsigned int, bool use_memmove = true, PTR = LKV::_T<LKV::AbsPtr>, STYPE = long unsigned int, size_type = long unsigned int]/579(537) @0x7ffff40b3138 (inline copy in static bool LKV::MatchEntity::init_text_2_3(const LKV::Str&, LKV::Str&, LKV::Str&, LKV::Array<long unsigned int, true, LKV::_T<LKV::AbsPtr>, long unsigned int>*, LKV::Array<long unsigned int, true, LKV::_T<LKV::AbsPtr>, long unsigned int>*)/573) availability:available 97 time, 31 benefit 40 size, 15 benefit reachable body finalized inlinable called by: static bool LKV::MatchEntity::init_text_2_3(const LKV::Str&, LKV::Str&, LKV::Str&, LKV::Array<long unsigned int, true, LKV::_T<LKV::AbsPtr>, long unsigned int>*, LKV::Array<long unsigned int, true, LKV::_T<LKV::AbsPtr>, long unsigned int>*)/573 (0.14 per call) (inlined) calls: long int __builtin_expect(long int, long int)/601 (nested in 1 loops) long int __builtin_expect(long int, long int)/601 (0.14 per call) (nested in 1 loops) long int __builtin_expect(long int, long int)/601 (0.14 per call) (nested in 1 loops) crashtest.cxx:455:22: internal compiler error: verify_cgraph_node failed Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/47987] ICE on legal code (when attempting to inline non-implicitly instantiated template member function) 2011-03-04 11:37 [Bug c++/47987] New: ICE on legal code (when attempting to inline non-implicitly instantiated template member function) niemayer at isg dot de 2011-03-04 11:43 ` [Bug c++/47987] " niemayer at isg dot de 2011-03-04 13:29 ` rguenth at gcc dot gnu.org @ 2011-09-29 17:57 ` paolo.carlini at oracle dot com 2 siblings, 0 replies; 4+ messages in thread From: paolo.carlini at oracle dot com @ 2011-09-29 17:57 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47987 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED Severity|critical |normal --- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-09-29 17:35:35 UTC --- Confirmed Fixed in 4.6.x and mainline. Not a regression. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-09-29 17:35 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2011-03-04 11:37 [Bug c++/47987] New: ICE on legal code (when attempting to inline non-implicitly instantiated template member function) niemayer at isg dot de 2011-03-04 11:43 ` [Bug c++/47987] " niemayer at isg dot de 2011-03-04 13:29 ` rguenth at gcc dot gnu.org 2011-09-29 17:57 ` paolo.carlini at oracle dot com
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