[Bug tree-optimization/93776] [10 Regression] ICE in verify_sra_access_forest, at tree-sra.c:2326

[jamborm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93776

--- Comment #3 from Martin Jambor <jamborm at gcc dot gnu.org> ---
x86_64 testcase (reproduces at -O1):

struct empty {};
struct s { int i; };
struct z
{
  int j;
  struct empty e;
  struct s s;
};

void bar (struct z);

void foo (void)
{
  struct z z, z2;

  z2.s.i = 1;
  z = z2;
  bar (z);
  z.e = (struct empty) {};
}