Remove last change.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@7764 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index 15509a3..fc61190 100644 (file)
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -3751,24 +3751,6 @@ fold (expr)
              && operand_equal_p (TREE_OPERAND (arg0, 1), arg1, 0))
            return TREE_OPERAND (arg0, 0);
 
-         /* If we have ((A / C1) * C2) with C1 and C2 constant,
-            C2 >= C1, and the division an unsigned CEIL_DIV_EXPR,
-            we know that the addition that's part of the CEIL_DIV_EXPR
-            cannot overflow while the generic CEIL_DIV_EXPR does not.
-            So convert it into a TRUNC_DIV_EXPR of an add.  */
-         if (TREE_CODE (arg0) == CEIL_DIV_EXPR && TREE_UNSIGNED (type)
-             && TREE_CODE (arg1) == INTEGER_CST
-             && TREE_CODE (TREE_OPERAND (arg0, 1)) == INTEGER_CST
-             && ! tree_int_cst_lt (arg1, TREE_OPERAND (arg0, 1)))
-           return
-             build (MULT_EXPR, type,
-                    build (TRUNC_DIV_EXPR, type,
-                           build (PLUS_EXPR, type,
-                                  TREE_OPERAND (TREE_OPERAND (arg0, 0), 0)),
-                           const_binop (MINUS_EXPR, TREE_OPERAND (arg0, 1),
-                                        integer_one_node, 0)),
-                    arg1);
-                                
          /* (a * (1 << b)) is (a << b)  */
          if (TREE_CODE (arg1) == LSHIFT_EXPR
              && integer_onep (TREE_OPERAND (arg1, 0)))