fix-gcc-ice.patch

--- gcc-13.3.0/gcc/gimple-ssa-store-merging.cc	2024-05-21 15:47:38.000000000 +0800
+++ gimple-ssa-store-merging.cc	2024-11-11 11:54:49.366712830 +0800
@@ -3157,6 +3157,10 @@
 		      unsigned int min_order = first_order;
 		      unsigned first_nonmergeable_int_order = ~0U;
 		      unsigned HOST_WIDE_INT this_end = end;
+		      unsigned HOST_WIDE_INT this_bitregion_start
+                        = new_bitregion_start;
+                      unsigned HOST_WIDE_INT this_bitregion_end
+                        = new_bitregion_end;
 		      k = i;
 		      first_nonmergeable_order = ~0U;
 		      for (unsigned int j = i + 1; j < len; ++j)
@@ -3180,6 +3184,19 @@
 				  k = 0;
 				  break;
 				}
+                              if (info2->bitregion_start
+                                  < this_bitregion_start)
+                                this_bitregion_start = info2->bitregion_start;
+                              if (info2->bitregion_end
+                                  > this_bitregion_end)
+                                this_bitregion_end = info2->bitregion_end;
+                              if (((this_bitregion_end - this_bitregion_start
+                                    + 1) / BITS_PER_UNIT)
+                                  > (unsigned) param_store_merging_max_size)
+                                {
+                                  k = 0;
+                                  break;
+                                }
 			      k = j;
 			      min_order = MIN (min_order, info2->order);
 			      this_end = MAX (this_end,
@@ -5247,7 +5264,9 @@
       || !bitsize.is_constant (&const_bitsize)
       || !bitpos.is_constant (&const_bitpos)
       || !bitregion_start.is_constant (&const_bitregion_start)
-      || !bitregion_end.is_constant (&const_bitregion_end))
+      || !bitregion_end.is_constant (&const_bitregion_end)
+      || ((const_bitregion_end - const_bitregion_start + 1) / BITS_PER_UNIT
+         > (unsigned) param_store_merging_max_size))
     return terminate_all_aliasing_chains (NULL, stmt);
 
   if (!ins_stmt)