dead node elimination now handles all anchors equaly

[libfirm] / ir / ir / irop.h

diff --git a/ir/ir/irop.h b/ir/ir/irop.h
index f2c42c9..908a2de 100644 (file)
--- a/ir/ir/irop.h
+++ b/ir/ir/irop.h
@@ -59,7 +59,10 @@ typedef enum {
                                            skipped in low-level optimizations */
   irop_flag_constlike   = 0x00000080, /**< the operation has no arguments and is some
                                            kind of a constant */
-  irop_flag_keep        = 0x00000100  /**< this operation can be kept in End's keep-alive list */
+  irop_flag_keep        = 0x00000100, /**< this operation can be kept in End's keep-alive list */
+  irop_flag_machine     = 0x00000200, /**< this operation is a machine operation */
+  irop_flag_machine_op  = 0x00000400, /**< this operation is a machine operand */
+  irop_flag_user        = 0x00000800  /**< this flag and all higher one are free for machine user */
 } irop_flags;
 
 /** The opcodes of the libFirm predefined operations. */