[Bug middle-end/87162] [6.2.0] Internal compiler error: Error reporting routines re-entered.

[yellowriver2010 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87162

--- Comment #4 from Wen Yang <yellowriver2010 at hotmail dot com> ---
Program received signal SIGSEGV, Segmentation fault.
0x0000000000929fa1 in calculate_dominance_info (dir=CDI_DOMINATORS) at
../../gcc-6.2.0/gcc/dominance.c:633
633       if (dom_computed[dir_index] == DOM_OK)
Missing separate debuginfos, use: debuginfo-install glibc-2.17-196.el7.x86_64
gmp-6.0.0-15.el7.x86_64 libmpc-1.0.1-3.el7.x86_64 mpfr-3.1.1-4.el7.x86_64
zlib-1.2.7-17.el7.x86_64
(gdb) bt
#0  0x0000000000929fa1 in calculate_dominance_info (dir=CDI_DOMINATORS) at
../../gcc-6.2.0/gcc/dominance.c:633
#1  0x0000000000d62673 in gate_tm_init () at
../../gcc-6.2.0/gcc/trans-mem.c:2100
#2  0x0000000000d6289b in (anonymous namespace)::pass_tm_init::gate
(this=0x2434380) at ../../gcc-6.2.0/gcc/trans-mem.c:2156
#3  0x0000000000c44738 in dump_one_pass (pass=0x2434380, pass_indent=1) at
../../gcc-6.2.0/gcc/passes.c:908
#4  0x0000000000c4483e in dump_pass_list (pass=0x2434380, indent=1) at
../../gcc-6.2.0/gcc/passes.c:930
#5  0x0000000000c44915 in gcc::pass_manager::dump_passes (this=0x242e580) at
../../gcc-6.2.0/gcc/passes.c:956
#6  0x0000000000c4488f in dump_passes () at ../../gcc-6.2.0/gcc/passes.c:942
#7  0x00000000008eaa25 in symbol_table::finalize_compilation_unit
(this=0x7ffff04ed0a8) at ../../gcc-6.2.0/gcc/cgraphunit.c:2538
#8  0x0000000000d58f45 in compile_file () at ../../gcc-6.2.0/gcc/toplev.c:488
#9  0x0000000000d5b3ee in do_compile () at ../../gcc-6.2.0/gcc/toplev.c:1986
#10 0x0000000000d5b678 in toplev::main (this=0x7fffffffa7a0, argc=585,
argv=0x7fffffffa8a8) at ../../gcc-6.2.0/gcc/toplev.c:2094
#11 0x000000000167e46e in main (argc=585, argv=0x7fffffffa8a8) at
../../gcc-6.2.0/gcc/main.c:39
(gdb) p  dir_index
$1 = 0
(gdb) l
628     void
629     calculate_dominance_info (cdi_direction dir)
630     {
631       unsigned int dir_index = dom_convert_dir_to_idx (dir);
632
633       if (dom_computed[dir_index] == DOM_OK)
634         {
635           checking_verify_dominators (dir);
636           return;
637         }


 #define dom_computed (cfun->cfg->x_dom_computed)


(gdb) disassemble calculate_dominance_info
Dump of assembler code for function calculate_dominance_info(cdi_direction):
   0x0000000000929f6e <+0>:     push   %rbp
   0x0000000000929f6f <+1>:     mov    %rsp,%rbp
   0x0000000000929f72 <+4>:     sub    $0xc0,%rsp
   0x0000000000929f79 <+11>:    mov    %edi,-0xb4(%rbp)
   0x0000000000929f7f <+17>:    mov    -0xb4(%rbp),%eax
   0x0000000000929f85 <+23>:    mov    %eax,%edi
   0x0000000000929f87 <+25>:    callq  0x928e19
<dom_convert_dir_to_idx(cdi_direction)>
   0x0000000000929f8c <+30>:    mov    %eax,-0xc(%rbp)
   0x0000000000929f8f <+33>:    mov    0x19bd1a2(%rip),%rax        # 0x22e7138
<cfun>
   0x0000000000929f96 <+40>:    mov    0x8(%rax),%rax
   0x0000000000929f9a <+44>:    mov    -0xc(%rbp),%edx
   0x0000000000929f9d <+47>:    add    $0xc,%rdx
   0x0000000000929fa1 <+51>:    mov    0x4(%rax,%rdx,4),%eax
   0x0000000000929fa5 <+55>:    cmp    $0x2,%eax
   0x0000000000929fa8 <+58>:    jne    0x929fbc
<calculate_dominance_info(cdi_direction)+78>
......



(gdb) p  *(struct function *) 0x22e7138
$3 = {eh = 0x7fffd16e83f0, cfg = 0x0, gimple_body = 0x0, gimple_df = 0x49,
x_current_loops = 0x0, su = 0x0, value_histograms = 0x0, decl = 0x0,
static_chain_decl = 0x0,
  nonlocal_goto_save_area = 0x0, local_decls = 0x0, cilk_frame_decl =
0x100000000, machine = 0x24230c0, language = 0x0, used_types_hash = 0x0, fde =
0x0, last_stmt_uid = 0,
  funcdef_no = 0, function_start_locus = 0, function_end_locus = 0,
curr_properties = 0, last_verified = 0, cannot_be_copied_reason = 0x0,
last_clique = 0,
  va_list_gpr_size = 0, va_list_fpr_size = 0, calls_setjmp = 0, calls_alloca =
0, is_cilk_function = 0, calls_cilk_spawn = 0, has_nonlocal_label = 0,
  has_forced_label_in_static = 0, cannot_be_copied_set = 0, stdarg = 0,
after_inlining = 0, always_inline_functions_inlined = 0,
can_throw_non_call_exceptions = 0,
  can_delete_dead_exceptions = 0, returns_struct = 0, returns_pcc_struct = 0,
has_local_explicit_reg_vars = 0, is_thunk = 0, has_force_vectorize_loops = 0,
  has_simduid_loops = 0, tail_call_marked = 0}