[Bug debug/66482] [6 Regression] ICE in gen_formal_parameter_die

[krebbel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66482

--- Comment #4 from Andreas Krebbel <krebbel at gcc dot gnu.org> ---
Created attachment 35830
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35830&action=edit
Automatically reduced testcase from S/390 bootstrap failure

cc1 -fpreprocessed  -quiet  -g -O0   t.c

t.c: In function ‘__udiv_w_sdiv’:
t.c:36:1: internal compiler error: in gen_formal_parameter_die, at
dwarf2out.c:18035
 }
 ^
0x8059cabb gen_formal_parameter_die
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:18034
0x805a9395 gen_decl_die
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:21539
0x8059ff95 gen_subprogram_die
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:19133
0x805a8d71 gen_decl_die
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:21450
0x805aa549 dwarf2out_decl
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:21923
0x8059e4c9 dwarf2out_abstract_function
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:18489
0x805a8b13 gen_decl_die
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:21407
0x805a70a1 process_scope_var
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:21008
0x805a7207 decls_for_scope
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:21036
0x805a2fc1 gen_lexical_block_die
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:19904
0x805a6d2b gen_block_die
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:20977
0x805a72a1 decls_for_scope
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:21047
0x805a2fc1 gen_lexical_block_die
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:19904
0x805a6d2b gen_block_die
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:20977
0x805a72a1 decls_for_scope
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:21047
0x805a315b gen_inlined_subroutine_die
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:19938
0x805a6d15 gen_block_die
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:20974
0x805a72a1 decls_for_scope
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:21047
0x805a03d5 gen_subprogram_die
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:19200
0x805a8d71 gen_decl_die
        /home/andreas/clean/../gcc/gcc/dwarf2out.c:21450
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.