picochip.c (TARGET_EXCEPT_UNWIND_INFO): Define it to be UI_NONE for picochip.

        * config/picochip/picochip.c (TARGET_EXCEPT_UNWIND_INFO):
        Define it to be UI_NONE for picochip.
        (picochip_option_override): Do not disable exception flags
        * config/picochip/picochip-protos.h (picochip_except_unwind_info)
        Declare

From-SVN: r165023

gcc/ChangeLog

+2010-10-06  Hariharan Sandanagobalane <hariharan@picochip.com>
+	* config/picochip/picochip.c (TARGET_EXCEPT_UNWIND_INFO): Define it to
+	be UI_NONE for picochip.
+	(picochip_option_override): Do not disable exception flags.
+	* config/picochip/picochip-protos.h (picochip_except_unwind_info)
+	Declare.
+
 2010-10-06  Richard Guenther  <rguenther@suse.de>
 
 	* Makefile.in (regmove.o): Depend on $(TARGET_H).

gcc/config/picochip/picochip-protos.h

@@ -136,6 +136,8 @@ extern int picochip_flag_schedule_insns2;
 
 extern void picochip_asm_output_anchor (rtx symbol);
 
+extern enum unwind_info_type picochip_except_unwind_info (void);
+
 /* Instruction set capability flags.  These are initialised to the
    appropriate values by picochip_option_override, once the user has
    selected a CPU type. */

gcc/config/picochip/picochip.c

@@ -309,9 +309,18 @@ static char picochip_get_vliw_alu_id (void);
 #undef TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE
 #define TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE picochip_option_override
 
+#undef TARGET_EXCEPT_UNWIND_INFO
+#define TARGET_EXCEPT_UNWIND_INFO picochip_except_unwind_info
+
 struct gcc_target targetm = TARGET_INITIALIZER;
 
 
+enum unwind_info_type
+picochip_except_unwind_info (void)
+{
+  return UI_NONE;
+}
+
 /* Only return a value in memory if it is greater than 4 bytes.
    int_size_in_bytes returns -1 for variable size objects, which go in
    memory always.  The cast to unsigned makes -1 > 8.  */
@@ -358,11 +367,6 @@ picochip_option_override (void)
   if (optimize >= 1)
     flag_section_anchors = 1;
 
-  /* Exception flags are irrelevant to picochip. It causes failure in libgcc
-     functions. */
-    flag_non_call_exceptions = 0;
-    flag_exceptions = 0;
-
   /* Turn off the second scheduling pass, and move it to
      picochip_reorg, to avoid having the second jump optimisation
      trash the instruction modes (e.g., instructions are changed to