Re: [PATCH] PR tree-optimization/103254 - Limit depth for all GORI expressions.

[Aldy Hernandez via Gcc-patches]

On 11/18/21 8:28 PM, Andrew MacLeod wrote:

@@ -376,6 +366,14 @@ range_def_chain::get_def_chain (tree name)
       return NULL;
     }
 
+  // Terminate the def chains if we see too many cascading stmts.
+  if (m_logical_depth == param_ranger_logical_depth)
+    return NULL;
+
+  // Increase the depth if we have a pair of ssa-names.
+  if (ssa1 && ssa2)
+    m_logical_depth++;
+

Not sure it matters, since this is an internal knob, but if the --param 
now applies to all statements, perhaps we should remove the "logical" 
reference from the knob.

Aldy