https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69000
Bug ID: 69000
Summary: regression: internal compiler error: Segmentation
fault
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: rogero at howzatt dot demon.co.uk
Target Milestone: ---
Created attachment 37093
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37093&action=edit
ice-example.cpp: Example program demonstrating the fault
I've an ICE (segfault) with gcc trunk that compiles without fault using gcc
5.3.0 and earlier.
I attach a stripped down example that fails with the same symptoms as the
original source file.
On Redhat Linux 2.6.32-573.3.1.el6.x86_64 using gcc-trunnk as at 2015-12-11:
0xcfe20f crash_signal
../../gcc/toplev.c:334
0x93ab64 tree_check(tree_node const*, char const*, int, char const*, tree_code)
../../gcc/tree.h:3252
0x93ab64 symbol_table::decl_assembler_name_hash(tree_node const*)
../../gcc/symtab.c:80
0x93fe20 symtab_node::get_for_asmname(tree_node const*)
../../gcc/symtab.c:924
0x93ff6d symtab_node::verify_base()
../../gcc/symtab.c:994
0x940aef symtab_node::verify()
../../gcc/symtab.c:1172
0x940bef symtab_node::verify_symtab_nodes()
../../gcc/symtab.c:1190
0x9533bb symtab_node::checking_verify_symtab_nodes()
../../gcc/cgraph.h:602
0x9533bb symbol_table::compile()
../../gcc/cgraphunit.c:2364
0x955932 symbol_table::compile()
../../gcc/cgraphunit.c:2520
0x955932 symbol_table::finalize_compilation_unit()
../../gcc/cgraphunit.c:2546
It also fails on wandbox http://melpon.org/wandbox/
using 'gcc HEAD 6.0.0 20151220' showing a slightly different call stack:
Start
prog.cc:16:1: internal compiler error: Segmentation fault
}
^
0xaa1bbf crash_signal
/home/heads/gcc/gcc-source/gcc/toplev.c:334
0xccc002 make_decl_rtl(tree_node*)
/home/heads/gcc/gcc-source/gcc/varasm.c:1350
0xccf57b assemble_variable(tree_node*, int, int, int)
/home/heads/gcc/gcc-source/gcc/varasm.c:2144
0xcd3400 varpool_node::assemble_decl()
/home/heads/gcc/gcc-source/gcc/varpool.c:583
0x7af053 output_in_order
/home/heads/gcc/gcc-source/gcc/cgraphunit.c:2220
0x7af3bd symbol_table::compile()
/home/heads/gcc/gcc-source/gcc/cgraphunit.c:2457
0x7b1432 symbol_table::compile()
/home/heads/gcc/gcc-source/gcc/cgraphunit.c:2527
0x7b1432 symbol_table::finalize_compilation_unit()
/home/heads/gcc/gcc-source/gcc/cgraphunit.c:2553
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
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