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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/103851] ICE in gimple_range_global with
 -ftrivial-auto-var-init=pattern since r12-3433-ga25e0b5e6ac8a77a
Date: Tue, 28 Dec 2021 21:29:31 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103851

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Here is an even more reduced testcase:
struct _Deque_base {
  long _M_map_size;
  int *_M_start;
  int *_M_finish;
};
void morphologicalFilter1D() {
#pragma omp parallel
  {
  struct _Deque_base vals[4];
  }
}

---- CUT ---
The above testcase can be used with either the C or C++ front-ends now too.
I would say the bug is in value-query.cc really for not checking the defini=
ng
statement is non-null when it is looping through all of the ssa names.=