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* [Bug tree-optimization/99165] New: [11 Regression] ICE in verify_dominators, at dominance.c:1184 since r11-7205-g95d94b52ea847833
@ 2021-02-19 14:11 marxin at gcc dot gnu.org
  2021-02-19 14:11 ` [Bug tree-optimization/99165] " marxin at gcc dot gnu.org
                   ` (7 more replies)
  0 siblings, 8 replies; 9+ messages in thread
From: marxin at gcc dot gnu.org @ 2021-02-19 14:11 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99165

            Bug ID: 99165
           Summary: [11 Regression] ICE in verify_dominators, at
                    dominance.c:1184 since r11-7205-g95d94b52ea847833
           Product: gcc
           Version: 11.0
            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: rguenth at gcc dot gnu.org
  Target Milestone: ---

The following fails:

$ cat new.C
struct A {
  A() : i() {}
  int i;
} *ap2 = new A[3];

$ g++ new.C --param=max-stores-to-track=2 -O2 -fnon-call-exceptions
struct A {
  A() : i() {}
  int i;
} *ap2 = new A[3];
new.C: In function ‘(static initializers for new.C)’:
new.C:4:18: error: dominator of 10 status unknown
    4 | } *ap2 = new A[3];
      |                  ^
new.C:4:18: error: dominator of 11 status unknown
new.C:4:18: error: dominator of 12 should be 11, not 5
during GIMPLE pass: store-merging
new.C:4:18: internal compiler error: in verify_dominators, at dominance.c:1184
0x76f16a verify_dominators(cdi_direction)
        /home/marxin/Programming/gcc/gcc/dominance.c:1184
0xd3ab17 checking_verify_dominators
        /home/marxin/Programming/gcc/gcc/dominance.h:76
0xd3ab17 calculate_dominance_info(cdi_direction)
        /home/marxin/Programming/gcc/gcc/dominance.c:746
0x1393f5d verify_ssa(bool, bool)
        /home/marxin/Programming/gcc/gcc/tree-ssa.c:1108
0x10851c8 execute_function_todo
        /home/marxin/Programming/gcc/gcc/passes.c:2049
0x10857ec do_per_function
        /home/marxin/Programming/gcc/gcc/passes.c:1687
0x10857ec execute_todo
        /home/marxin/Programming/gcc/gcc/passes.c:2096
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.

^ permalink raw reply	[flat|nested] 9+ messages in thread
end of thread, other threads:[~2021-02-22  8:29 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
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2021-02-19 14:11 [Bug tree-optimization/99165] New: [11 Regression] ICE in verify_dominators, at dominance.c:1184 since r11-7205-g95d94b52ea847833 marxin at gcc dot gnu.org
2021-02-19 14:11 ` [Bug tree-optimization/99165] " marxin at gcc dot gnu.org
2021-02-19 15:52 ` jakub at gcc dot gnu.org
2021-02-19 15:54 ` [Bug tree-optimization/99165] " marxin at gcc dot gnu.org
2021-02-22  7:21 ` rguenth at gcc dot gnu.org
2021-02-22  7:55 ` jakub at gcc dot gnu.org
2021-02-22  7:59 ` rguenth at gcc dot gnu.org
2021-02-22  8:29 ` cvs-commit at gcc dot gnu.org
2021-02-22  8:29 ` rguenth at gcc dot gnu.org

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