[PATCH][PUSHED] Remove unused function.

Martin Liška mliska@suse.cz
Fri Nov 12 11:39:13 GMT 2021


This one is last unused function we have, I'm going to push
this as obvious. Martin, feel free to restore the function once
it's used.

Thanks,
Martin

	PR tree-optimization/102497

gcc/ChangeLog:

	* gimple-predicate-analysis.cc (add_pred): Remove unused
	function:
---
  gcc/gimple-predicate-analysis.cc | 61 --------------------------------
  1 file changed, 61 deletions(-)

diff --git a/gcc/gimple-predicate-analysis.cc b/gcc/gimple-predicate-analysis.cc
index 454113d532e..6dde0203841 100644
--- a/gcc/gimple-predicate-analysis.cc
+++ b/gcc/gimple-predicate-analysis.cc
@@ -2105,67 +2105,6 @@ predicate::normalize (gimple *use_or_def, bool is_use)
      }
  }
  
-/* Add a predicate for the condition or logical assignment STMT to CHAIN.
-   Expand SSA_NAME into constituent subexpressions.  Invert the result
-   if INVERT is true.  Return true if the predicate has been added.  */
-
-static bool
-add_pred (pred_chain *chain, gimple *stmt, bool invert)
-{
-  if (gimple_code (stmt) == GIMPLE_COND)
-    {
-      tree lhs = gimple_cond_lhs (stmt);
-      if (TREE_CODE (lhs) == SSA_NAME)
-	{
-	  gimple *def = SSA_NAME_DEF_STMT (lhs);
-	  if (is_gimple_assign (def)
-	      && add_pred (chain, def, invert))
-	    return true;
-	}
-
-      pred_info pred;
-      pred.pred_lhs = lhs;
-      pred.pred_rhs = gimple_cond_rhs (stmt);
-      pred.cond_code = gimple_cond_code (stmt);
-      pred.invert = invert;
-      chain->safe_push (pred);
-      return true;
-    }
-
-  if (!is_gimple_assign (stmt))
-    return false;
-
-  if (gimple_assign_single_p (stmt))
-    // FIXME: handle this?
-    return false;
-
-  if (TREE_TYPE (gimple_assign_lhs (stmt)) != boolean_type_node)
-    return false;
-
-  tree rhs1 = gimple_assign_rhs1 (stmt);
-  tree rhs2 = gimple_assign_rhs2 (stmt);
-  tree_code code = gimple_assign_rhs_code (stmt);
-  if (code == BIT_AND_EXPR)
-    {
-      if (TREE_CODE (rhs1) == SSA_NAME
-	  && add_pred (chain, SSA_NAME_DEF_STMT (rhs1), invert)
-	  && TREE_CODE (rhs2) == SSA_NAME
-	  /* FIXME: Need to handle failure below! */
-	  && add_pred (chain, SSA_NAME_DEF_STMT (rhs2), invert))
-	return true;
-    }
-  else if (TREE_CODE_CLASS (code) != tcc_comparison)
-    return false;
-
-  pred_info pred;
-  pred.pred_lhs = rhs1;
-  pred.pred_rhs = rhs2;
-  pred.cond_code = code;
-  pred.invert = invert;
-  chain->safe_push (pred);
-  return true;
-}
-
  /* Convert the chains of control dependence edges into a set of predicates.
     A control dependence chain is represented by a vector edges.  DEP_CHAINS
     points to an array of NUM_CHAINS dependence chains. One edge in
-- 
2.33.1



More information about the Gcc-patches mailing list