X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Fxtensa-isa.c;h=ba7408f6a15f430adb9bd46fd5461e7ffb877efd;hb=bcef180ccbeb8a6a9301065ede1fe038c3040fa5;hp=362e47c31797a04ef9f69525d49f2137d06dad34;hpb=3db64b009284dda3a1ce10a91beb1297475e60a7;p=deliverable%2Fbinutils-gdb.git

diff --git a/bfd/xtensa-isa.c b/bfd/xtensa-isa.c
index 362e47c317..ba7408f6a1 100644
--- a/bfd/xtensa-isa.c
+++ b/bfd/xtensa-isa.c
@@ -1,11 +1,11 @@
 /* Configurable Xtensa ISA support.
-   Copyright 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
+   Copyright 2003, 2004, 2005, 2007, 2008, 2009 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,
@@ -15,7 +15,8 @@
 
    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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
 
 #include "sysdep.h"
 #include "bfd.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++)
@@ -1022,15 +1028,14 @@ xtensa_operand_encode (xtensa_isa isa, xtensa_opcode opc, int opnd,
   uint32 test_val, orig_val;
 
   intop = get_operand (intisa, opc, opnd);
-  if (!intop) return -1;
+  if (!intop)
+    return -1;
 
   if (!intop->encode)
     {
       /* This is a default operand for a field.  How can we tell if the
 	 value fits in the field?  Write the value into the field,
 	 read it back, and then make sure we get the same value.  */
-
-      xtensa_isa_internal *intisa = (xtensa_isa_internal *) isa;
       static xtensa_insnbuf tmpbuf = 0;
       int slot_id;
 
@@ -1075,9 +1080,9 @@ xtensa_operand_encode (xtensa_isa isa, xtensa_opcode opc, int opnd,
      was successfully encoded is to decode it and check if it matches
      the original value.  */
   orig_val = *valp;
-  if ((*intop->encode) (valp) ||
-      (test_val = *valp, (*intop->decode) (&test_val)) ||
-      test_val != orig_val)
+  if ((*intop->encode) (valp)
+      || (test_val = *valp, (*intop->decode) (&test_val))
+      || test_val != orig_val)
     {
       xtisa_errno = xtensa_isa_bad_value;
       sprintf (xtisa_error_msg, "cannot encode operand value 0x%08x", *valp);
@@ -1359,7 +1364,7 @@ xtensa_regfile_lookup (xtensa_isa isa, const char *name)
   /* The expected number of regfiles is small; use a linear search.  */
   for (n = 0; n < intisa->num_regfiles; n++)
     {
-      if (!strcmp (intisa->regfiles[n].name, name))
+      if (!filename_cmp (intisa->regfiles[n].name, name))
 	return n;
     }
 
@@ -1389,7 +1394,7 @@ xtensa_regfile_lookup_shortname (xtensa_isa isa, const char *shortname)
 	 as their parents.  */
       if (intisa->regfiles[n].parent != n)
 	continue;
-      if (!strcmp (intisa->regfiles[n].shortname, shortname))
+      if (!filename_cmp (intisa->regfiles[n].shortname, shortname))
 	return n;
     }
 
@@ -1520,6 +1525,17 @@ 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;
+}
+
+
 
 /* Sysregs.  */