[Bug tree-optimization/126532] New: [17 Regression] ICE in value-range.h:1082

"ktkachov at gcc dot gnu.org via Gcc-bugs" <[email protected]>
Newsgroups gmane.comp.gcc.bugs
Message-ID <[email protected]/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126532

            Bug ID: 126532
           Summary: [17 Regression] ICE in value-range.h:1082
           Product: gcc
           Version: 17.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ktkachov at gcc dot gnu.org
  Target Milestone: ---

int f_b, f_r;

__attribute__((noipa)) void
f (int a)
{
  _Bool t1 = f_b;
  if (t1)
    {
      _Bool t3 = a && t1;
      _Bool t39 = t3 ^ t1;
      if (t3)
        ;
      else if (!a)
        ;
      else
        f_r += 7;
      if (t39)
        f_r += 3;
    }
}

int
main (void)
{
  for (int b = 0; b < 2; b++)
    for (int a = -1; a < 2; a++)
      {
        int e = 0;
        f_b = b;
        f_r = 0;
        f (a);
        if (b)
          {
            int t3 = (a != 0);
            int t39 = t3 ^ 1;
            if (!t3 && a)
              e += 7;
            if (t39)
              e += 3;
          }
        if (f_r != e)
          __builtin_abort ();
      }
  return 0;
}

ICEs on aarch64 with -O2 -fno-tree-vrp -fno-tree-dominator-opts
during GIMPLE pass: threadfull
<source>: In function 'f':
<source>:4:1: internal compiler error: in type, at value-range.h:1082
    4 | f (int a)
      | ^
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