[Bug c++/83667] New: ICE in dump_function_decl on a thunk with variadic arguments
marxin at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Jan 3 12:20:00 GMT 2018
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83667
Bug ID: 83667
Summary: ICE in dump_function_decl on a thunk with variadic
arguments
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: nathan at gcc dot gnu.org
Target Milestone: ---
Very ancient bug, fails for all releases I have:
$ cat ice.cpp
struct a
{
virtual ~a ();
};
struct b
{
virtual void d (...);
};
struct : a, b
{
void
d (...)
{
}
} c;
$ ./xgcc -B. ice.cpp -fdump-ipa-inline
during IPA pass: inline
/home/marxin/Programming/testcases/ice.cpp:15:4: internal compiler error:
Segmentation fault
} c;
^
0x120ee31 crash_signal
../../gcc/toplev.c:325
0x81e0d4 tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc/tree.h:3127
0x93d23a dump_function_decl
../../gcc/cp/error.c:1604
0x93b36b dump_decl
../../gcc/cp/error.c:1259
0x943e21 decl_as_string(tree_node*, int)
../../gcc/cp/error.c:2956
0x943ef9 lang_decl_name(tree_node*, int, bool)
../../gcc/cp/error.c:2990
0xae90a8 cxx_printable_name_internal
../../gcc/cp/tree.c:2556
0xae9148 cxx_printable_name(tree_node*, int)
../../gcc/cp/tree.c:2565
0xc60c85 symtab_node::name() const
../../gcc/symtab.c:524
0xf4a057 ipa_dump_fn_summary(_IO_FILE*, cgraph_node*)
../../gcc/ipa-fnsummary.c:889
0xf4a4eb ipa_dump_fn_summaries(_IO_FILE*)
../../gcc/ipa-fnsummary.c:959
0x1db5621 ipa_inline
../../gcc/ipa-inline.c:2370
0x1db667e execute
../../gcc/ipa-inline.c:2855
│1600 if (DECL_CLASS_SCOPE_P (t))
│1601 cname = DECL_CONTEXT (t);
│1602 /* This is for partially instantiated template methods. */
│1603 else if (TREE_CODE (fntype) == METHOD_TYPE)
>│1604 cname = TREE_TYPE (TREE_VALUE (parmtypes));
parmtypes == 0
Nathan can you please take a look?
Martin
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