bfd/

[deliverable/binutils-gdb.git] / bfd / xtensa-isa.c

diff --git a/bfd/xtensa-isa.c b/bfd/xtensa-isa.c
index 8fb96be612fdbaed8bd2b665df5c382a22417334..138f6eceb7254e696c3c8cf0876c863489b6e43c 100644 (file)
--- a/bfd/xtensa-isa.c
+++ b/bfd/xtensa-isa.c
@@ -1,11 +1,11 @@
 /* Configurable Xtensa ISA support.
-   Copyright 2003, 2004, 2005 Free Software Foundation, Inc.
+   Copyright 2003, 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
 
    This file is part of BFD, the Binary File Descriptor library.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,10 +15,11 @@
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
 
-#include "bfd.h"
 #include "sysdep.h"
+#include "bfd.h"
 #include "libbfd.h"
 #include "xtensa-isa.h"
 #include "xtensa-isa-internal.h"
@@ -410,7 +411,12 @@ xtensa_isa_num_pipe_stages (xtensa_isa isa)
   xtensa_opcode opcode;
   xtensa_funcUnit_use *use;
   int num_opcodes, num_uses;
-  int i, stage, max_stage = XTENSA_UNDEFINED;
+  int i, stage;
+  static int max_stage = XTENSA_UNDEFINED;
+
+  /* Only compute the value once.  */
+  if (max_stage != XTENSA_UNDEFINED)
+    return max_stage + 1;
 
   num_opcodes = xtensa_isa_num_opcodes (isa);
   for (opcode = 0; opcode < num_opcodes; opcode++)
@@ -1520,6 +1526,17 @@ xtensa_state_is_exported (xtensa_isa isa, xtensa_state st)
 }
 
 
+int
+xtensa_state_is_shared_or (xtensa_isa isa, xtensa_state st)
+{
+  xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
+  CHECK_STATE (intisa, st, XTENSA_UNDEFINED);
+  if ((intisa->states[st].flags & XTENSA_STATE_IS_SHARED_OR) != 0)
+    return 1;
+  return 0;
+}
+
+
 \f
 /* Sysregs.  */