match.pd: Remove element_mode inside HONOR_*.

2015-07-06  Marc Glisse  <marc.glisse@inria.fr>

	* match.pd: Remove element_mode inside HONOR_*.
	(~ (-A) -> A - 1, ~ (A - 1) -> -A): Handle complex types.
	(~X | X -> -1, ~X ^ X -> -1): Merge.
	* tree.c (build_each_one_cst): New function.
	* tree.h (build_each_one_cst): Likewise.

From-SVN: r225473

1 files changed, 15 insertions, 0 deletions

diff --git a/gcc/tree.c b/gcc/tree.c
index 6628a38..c0e2b0a 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -1968,6 +1968,21 @@ build_complex (tree type, tree real, tree imag)
   return t;
 }
 
+/* Return the constant 1 in type TYPE.  If TYPE has several elements, each
+   element is set to 1.  In particular, this is 1 + i for complex types.  */
+
+tree
+build_each_one_cst (tree type)
+{
+  if (TREE_CODE (type) == COMPLEX_TYPE)
+    {
+      tree scalar = build_one_cst (TREE_TYPE (type));
+      return build_complex (type, scalar, scalar);
+    }
+  else
+    return build_one_cst (type);
+}
+
 /* Return a constant of arithmetic type TYPE which is the
    multiplicative identity of the set TYPE.  */