tree-scalar-evolution.c (analyzable_condition): Remove superfluous…

tree-scalar-evolution.c (analyzable_condition): Remove superfluous TREE_THIS_VOLATILE checks on SSA_NAMEs.


	* tree-scalar-evolution.c (analyzable_condition): Remove
	superfluous TREE_THIS_VOLATILE checks on SSA_NAMEs.

From-SVN: r90528

gcc/ChangeLog

+2004-11-12  Diego Novillo  <dnovillo@redhat.com>
+
+	* tree-scalar-evolution.c (analyzable_condition): Remove
+	superfluous TREE_THIS_VOLATILE checks on SSA_NAMEs.
+
 2004-11-12  Ralf Corsepius  <ralf.corsepius@rtems.org>
 
 	* config/rs6000/t-rtems (MULTILIB_NEW_EXCEPTIONS_ONLY):

gcc/tree-scalar-evolution.c

@@ -959,9 +959,6 @@ analyzable_condition (tree expr)
   switch (TREE_CODE (condition))
     {
     case SSA_NAME:
-      /* Volatile expressions are not analyzable.  */
-      if (TREE_THIS_VOLATILE (SSA_NAME_VAR (condition)))
-	return false;
       return true;
       
     case LT_EXPR:
@@ -970,22 +967,7 @@ analyzable_condition (tree expr)
     case GE_EXPR:
     case EQ_EXPR:
     case NE_EXPR:
-      {
-	tree opnd0, opnd1;
-	
-	opnd0 = TREE_OPERAND (condition, 0);
-	opnd1 = TREE_OPERAND (condition, 1);
-	
-	if (TREE_CODE (opnd0) == SSA_NAME
-	    && TREE_THIS_VOLATILE (SSA_NAME_VAR (opnd0)))
-	  return false;
-	
-	if (TREE_CODE (opnd1) == SSA_NAME
-	    && TREE_THIS_VOLATILE (SSA_NAME_VAR (opnd1)))
-	  return false;
-	
-	return true;
-      }
+      return true;
       
     default:
       return false;