dwarf2out.c (dbx_reg_number): Check return value from LEAF_REG_REMAP and only…

dwarf2out.c (dbx_reg_number): Check return value from LEAF_REG_REMAP and only use it if it is valid.

* dwarf2out.c (dbx_reg_number): Check return value from
  LEAF_REG_REMAP and only use it if it is valid.
  (multiple_reg_loc_descriptor): Likewise.

From-SVN: r113756

gcc/ChangeLog

+2006-05-13  Nick Clifton  <nickc@redhat.com>
+
+	* dwarf2out.c (dbx_reg_number): Check return value from
+	LEAF_REG_REMAP and only use it if it is valid.
+	(multiple_reg_loc_descriptor): Likewise.
+
 2006-05-13  Richard Guenther  <rguenther@suse.de>
 
 	* config.host <i[34567]86-*-cygwin*>: Append i386/x-cygwin to

gcc/dwarf2out.c

@@ -8477,7 +8477,13 @@ dbx_reg_number (rtx rtl)
   gcc_assert (regno < FIRST_PSEUDO_REGISTER);
 
 #ifdef LEAF_REG_REMAP
-  regno = LEAF_REG_REMAP (regno);
+  {
+    int leaf_reg;
+
+    leaf_reg = LEAF_REG_REMAP (regno);
+    if (leaf_reg != -1)
+      regno = (unsigned) leaf_reg;
+  }
 #endif
 
   return DBX_REGISTER_NUMBER (regno);
@@ -8546,7 +8552,13 @@ multiple_reg_loc_descriptor (rtx rtl, rtx regs)
 
   reg = REGNO (rtl);
 #ifdef LEAF_REG_REMAP
-  reg = LEAF_REG_REMAP (reg);
+  {
+    int leaf_reg;
+
+    leaf_reg = LEAF_REG_REMAP (reg);
+    if (leaf_reg != -1)
+      reg = (unsigned) leaf_reg;
+  }
 #endif
   gcc_assert ((unsigned) DBX_REGISTER_NUMBER (reg) == dbx_reg_number (rtl));
   nregs = hard_regno_nregs[REGNO (rtl)][GET_MODE (rtl)];