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* [Bug tree-optimization/103122] New: [12 Regression] ICE in fill_block_cache, at gimple-range-cache.cc:1277 with -O2
@ 2021-11-08  1:02 vsevolod.livinskij at frtk dot ru
  2021-11-08  2:36 ` [Bug tree-optimization/103122] " pinskia at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: vsevolod.livinskij at frtk dot ru @ 2021-11-08  1:02 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103122

            Bug ID: 103122
           Summary: [12 Regression] ICE in fill_block_cache, at
                    gimple-range-cache.cc:1277 with -O2
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vsevolod.livinskij at frtk dot ru
  Target Milestone: ---

Link to the Compiler Explorer: https://godbolt.org/z/GWbbq3sKK
Reproducer:
unsigned a;
int b;
short c;
void d(long) {
  for (bool e = (bool)c - 1; e < (bool)b - 1; e += 0)
    ;
  if (a) {
    for (char f = 0; f < 7; f = 7)
      for (int g = 0; g < c; g += 10)
        ;
    d(-!c);
  }
}

Error:
>$ g++ -O2 -c func.cpp
during GIMPLE pass: evrp
func.cpp: In function 'void d(long int)':
func.cpp:13:1: internal compiler error: in fill_block_cache, at
gimple-range-cache.cc:1277
   13 | }
      | ^
0x9e79d7 ranger_cache::fill_block_cache(tree_node*, basic_block_def*,
basic_block_def*)
        /testing/gcc/gcc_src_master/gcc/gimple-range-cache.cc:1277
0x1ed1ecd ranger_cache::block_range(irange&, basic_block_def*, tree_node*,
bool)
        /testing/gcc/gcc_src_master/gcc/gimple-range-cache.cc:1107
0x1ecc4f8 gimple_ranger::range_of_expr(irange&, tree_node*, gimple*)
        /testing/gcc/gcc_src_master/gcc/gimple-range.cc:92
0xee7dff expr_not_equal_to(tree_node*, generic_wide_int<wide_int_storage>
const&)
        /testing/gcc/gcc_src_master/gcc/fold-const.c:10733
0xeec8e3 tree_single_nonzero_warnv_p(tree_node*, bool*)
        /testing/gcc/gcc_src_master/gcc/fold-const.c:15244
0xeed076 tree_expr_nonzero_p(tree_node*)
        /testing/gcc/gcc_src_master/gcc/fold-const.c:10706
0xefe7a8 fold_binary_loc(unsigned int, tree_code, tree_node*, tree_node*,
tree_node*)
        /testing/gcc/gcc_src_master/gcc/fold-const.c:12284
0xf0254d fold_build2_loc(unsigned int, tree_code, tree_node*, tree_node*,
tree_node*)
        /testing/gcc/gcc_src_master/gcc/fold-const.c:13774
0x13fe25c simplify_using_initial_conditions(loop*, tree_node*)
        /testing/gcc/gcc_src_master/gcc/tree-ssa-loop-niter.c:2353
0x1404cd7 simplify_using_initial_conditions(loop*, tree_node*)
        /testing/gcc/gcc_src_master/gcc/tree-ssa-loop-niter.c:2333
0x1404cd7 number_of_iterations_exit_assumptions(loop*, edge_def*,
tree_niter_desc*, gcond**, bool, basic_block_def**)
        /testing/gcc/gcc_src_master/gcc/tree-ssa-loop-niter.c:2590
0x1405be2 number_of_iterations_exit_assumptions(loop*, edge_def*,
tree_niter_desc*, gcond**, bool, basic_block_def**)
        /testing/gcc/gcc_src_master/gcc/tree-ssa-loop-niter.c:2825
0x1405be2 number_of_iterations_exit(loop*, edge_def*, tree_niter_desc*, bool,
bool, basic_block_def**)
        /testing/gcc/gcc_src_master/gcc/tree-ssa-loop-niter.c:2812
0x135f6f0 number_of_latch_executions(loop*)
        /testing/gcc/gcc_src_master/gcc/tree-scalar-evolution.c:2813
0x1405ef5 estimate_numbers_of_iterations(loop*)
        /testing/gcc/gcc_src_master/gcc/tree-ssa-loop-niter.c:4356
0x1408c87 max_loop_iterations(loop*,
generic_wide_int<fixed_wide_int_storage<576> >*)
        /testing/gcc/gcc_src_master/gcc/tree-ssa-loop-niter.c:4462
0x15d2f6f bounds_of_var_in_loop(tree_node**, tree_node**, range_query*, loop*,
gimple*, tree_node*)
        /testing/gcc/gcc_src_master/gcc/vr-values.c:1708
0x1ed6641 fold_using_range::range_of_ssa_name_with_loop_info(irange&,
tree_node*, loop*, gphi*, fur_source&)
        /testing/gcc/gcc_src_master/gcc/gimple-range-fold.cc:1282
0x1ed6e1e fold_using_range::range_of_phi(irange&, gphi*, fur_source&)
        /testing/gcc/gcc_src_master/gcc/gimple-range-fold.cc:837
0x1ed8e50 fold_using_range::fold_stmt(irange&, gimple*, fur_source&,
tree_node*)
        /testing/gcc/gcc_src_master/gcc/gimple-range-fold.cc:554
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

GCC version:
gcc version 12.0.0 20211107 (9defce622893f87d954e0089e0ea79e1e388a480) (GCC)

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-- links below jump to the message on this page --
2021-11-08  1:02 [Bug tree-optimization/103122] New: [12 Regression] ICE in fill_block_cache, at gimple-range-cache.cc:1277 with -O2 vsevolod.livinskij at frtk dot ru
2021-11-08  2:36 ` [Bug tree-optimization/103122] " pinskia at gcc dot gnu.org
2021-11-08  8:20 ` [Bug tree-optimization/103122] [12 Regression] ICE in fill_block_cache, at gimple-range-cache.cc:1277 with -O2 since r12-4866-gfc4076752067fb40 marxin at gcc dot gnu.org
2021-11-08  9:25 ` rguenth at gcc dot gnu.org
2021-11-08 17:49 ` cvs-commit at gcc dot gnu.org
2021-11-08 17:50 ` amacleod at redhat dot com

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