[Bug c++/57138] ICE in cp_parser_class_specifier with variadic templates, using declarations, save-temps and precompiled header

[jmetcalfe at acm dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57138



--- Comment #2 from Jacob Metcalfe <jmetcalfe at acm dot org> 2013-05-02 
07:02:47 UTC ---

Modified the subject to reflect the stack produced by the given example. In our

larger code base the stack was somewhat different but related. I have been

unable to produce this stack in a reduced example because of the sensitivity to

removing unused lines of code:



GCC 4.8.0 stack:

core/Policy.hpp:37:59: internal compiler error: Segmentation fault

         using type = Type<specified_args..., more_args...>;

                                                           ^

0x86943f crash_signal

        ../../gcc/toplev.c:332

0x508fd8 tsubst(tree_node*, tree_node*, int, tree_node*)

        ../../gcc/cp/pt.c:11227

0x50c992 tsubst_template_args

        ../../gcc/cp/pt.c:9607

0x5091b8 tsubst(tree_node*, tree_node*, int, tree_node*)

        ../../gcc/cp/pt.c:11465

0x50952d tsubst(tree_node*, tree_node*, int, tree_node*)

        ../../gcc/cp/pt.c:11107

0x50eb00 lookup_template_class_1

        ../../gcc/cp/pt.c:7363

0x50eb00 lookup_template_class(tree_node*, tree_node*, tree_node*, tree_node*,

int, int)

        ../../gcc/cp/pt.c:7562

0x5090af tsubst(tree_node*, tree_node*, int, tree_node*)

        ../../gcc/cp/pt.c:11337

0x50816e tsubst_decl

        ../../gcc/cp/pt.c:10625

0x509694 tsubst(tree_node*, tree_node*, int, tree_node*)

        ../../gcc/cp/pt.c:11081

0x50be68 instantiate_template_1

        ../../gcc/cp/pt.c:14719

0x50be68 instantiate_template(tree_node*, tree_node*, int)

        ../../gcc/cp/pt.c:14769

0x5097a7 instantiate_alias_template

        ../../gcc/cp/pt.c:14799

0x5097a7 tsubst(tree_node*, tree_node*, int, tree_node*)

        ../../gcc/cp/pt.c:11108

0x50816e tsubst_decl

        ../../gcc/cp/pt.c:10625

0x509694 tsubst(tree_node*, tree_node*, int, tree_node*)

        ../../gcc/cp/pt.c:11081

0x507f73 tsubst_decl

        ../../gcc/cp/pt.c:10037

0x509694 tsubst(tree_node*, tree_node*, int, tree_node*)

        ../../gcc/cp/pt.c:11081

0x516817 instantiate_class_template_1

        ../../gcc/cp/pt.c:8818

0x516817 instantiate_class_template(tree_node*)

        ../../gcc/cp/pt.c:9054