* tree-ssa-ccp.c (fold_stmt_r): DATA argument is now a pointer

	to a structure containing state rather than a pointer to bool.
	(case ARRAY_REF): New code to handle folding some array references.
	(case ADDR_EXPR): Note when we are processing expressions found
	within an ADDRE_EXPR.
	(fold_stmt, fold_stmt_inplace): Pass in a structure to fold_stmt_r
	for state variables rather than just a pointer to a boolean.
	* tree-ssa-dom.c (simplify_rhs_and_lookup_avail_expr): Remove
	handling of constant string references.

	* gcc.dg/tree-ssa/foldstring-1.c: New test.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@108519 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 0 insertions, 10 deletions

diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c
index 4997a1b3c05..683e134cdd8 100644
--- a/gcc/tree-ssa-dom.c
+++ b/gcc/tree-ssa-dom.c
@@ -1837,16 +1837,6 @@ simplify_rhs_and_lookup_avail_expr (tree stmt, int insert)
 	}
     }
 
-  /* Optimize *"foo" into 'f'.  This is done here rather than
-     in fold to avoid problems with stuff like &*"foo".  */
-  if (TREE_CODE (rhs) == INDIRECT_REF || TREE_CODE (rhs) == ARRAY_REF)
-    {
-      tree t = fold_read_from_constant_string (rhs);
-
-      if (t)
-        result = update_rhs_and_lookup_avail_expr (stmt, t, insert);
-    }
-
   return result;
 }