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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/97315] New: [11 Regression] ICE in choose_value, at gimple-ssa-evrp.c:282 since r11-3690-gebc77ce3a4c70730b4e38d68f88693eadbdc8712
Date: Wed, 07 Oct 2020 08:34:43 +0000	[thread overview]
Message-ID: <bug-97315-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97315

            Bug ID: 97315
           Summary: [11 Regression] ICE in choose_value, at
                    gimple-ssa-evrp.c:282 since
                    r11-3690-gebc77ce3a4c70730b4e38d68f88693eadbdc8712
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: aldyh at gcc dot gnu.org, amacleod at redhat dot com
  Target Milestone: ---

The following fails:

$ cat ipa-devirt.ii
typedef struct tree_node *tree;
enum tree_code { RECORD_TYPE, QUAL_UNION_TYPE };
enum tree_code_class {};
struct tree_base {
  tree_code code : 16;
};
struct tree_node {
  tree_base base;
};
extern tree_code_class tree_code_type[];
void tree_check_failed() __attribute__((__noreturn__));
tree tree_check3(tree __t, tree_code __c1, tree_code __c3) {
  if (__t->base.code != __c1 && __t->base.code != __c3)
    tree_check_failed();
  return __t;
}
tree add_type_duplicate_type;
void add_type_duplicate() {
  if (tree_code_type[add_type_duplicate_type->base.code])
    if (add_type_duplicate_type->base.code == RECORD_TYPE)
      for (;
           tree_check3(add_type_duplicate_type, RECORD_TYPE, QUAL_UNION_TYPE);)
        tree_check3(add_type_duplicate_type, RECORD_TYPE, QUAL_UNION_TYPE);
}

$ g++ -O3 -fno-exceptions ipa-devirt.ii -c
during GIMPLE pass: evrp
ipa-devirt.ii: In function ‘void add_type_duplicate()’:
ipa-devirt.ii:24:1: internal compiler error: in choose_value, at
gimple-ssa-evrp.c:282
   24 | }
      | ^
0x87dc65 hybrid_folder::choose_value(tree_node*, tree_node*)
        /home/marxin/Programming/gcc/gcc/gimple-ssa-evrp.c:282
0x11a4793 substitute_and_fold_engine::replace_uses_in(gimple*)
        /home/marxin/Programming/gcc/gcc/tree-ssa-propagate.c:871
0x11a4adc substitute_and_fold_dom_walker::before_dom_children(basic_block_def*)
        /home/marxin/Programming/gcc/gcc/tree-ssa-propagate.c:1141
0x194da67 dom_walker::walk(basic_block_def*)
        /home/marxin/Programming/gcc/gcc/domwalk.c:309
0x11a3f25 substitute_and_fold_engine::substitute_and_fold(basic_block_def*)
        /home/marxin/Programming/gcc/gcc/tree-ssa-propagate.c:1283
0x1973a06 execute_early_vrp
        /home/marxin/Programming/gcc/gcc/gimple-ssa-evrp.c:334
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.

             reply	other threads:[~2020-10-07  8:34 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-07  8:34 marxin at gcc dot gnu.org [this message]
2020-10-07  8:34 ` [Bug tree-optimization/97315] " marxin at gcc dot gnu.org
2020-10-07 10:04 ` acoplan at gcc dot gnu.org
2020-10-07 12:02 ` aldyh at gcc dot gnu.org
2020-10-07 12:13 ` aldyh at gcc dot gnu.org
2020-10-07 12:21 ` rguenth at gcc dot gnu.org
2020-10-07 12:26 ` rguenth at gcc dot gnu.org
2020-10-07 12:35 ` dcb314 at hotmail dot com
2020-10-07 15:27 ` amacleod at redhat dot com
2020-10-07 15:35 ` amacleod at redhat dot com
2020-10-07 17:22 ` rguenther at suse dot de
2020-10-07 18:07 ` amacleod at redhat dot com
2020-10-08  9:21 ` cvs-commit at gcc dot gnu.org
2020-10-08  9:36 ` cvs-commit at gcc dot gnu.org
2020-10-08  9:38 ` aldyh at gcc dot gnu.org

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