bfin.h (EH_RETURN_HANDLER_RTX): Use gen_frame_mem.

	* config/bfin/bfin.h (EH_RETURN_HANDLER_RTX): Use gen_frame_mem.
	* config/bfin/bfin.md (UNSPEC_VOLATILE_STORE_EH_HANDLER): New constant.
	(eh_store_handler): New pattern.
	(eh_return): Emit it instead of a plain move.

From-SVN: r125681

gcc/ChangeLog

+2007-06-13  Bernd Schmidt  <bernd.schmidt@analog.com>
+
+	* config/bfin/bfin.h (EH_RETURN_HANDLER_RTX): Use gen_frame_mem.
+	* config/bfin/bfin.md (UNSPEC_VOLATILE_STORE_EH_HANDLER): New constant.
+	(eh_store_handler): New pattern.
+	(eh_return): Emit it instead of a plain move.
+
 2007-06-13  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/i386.c (ix86_init_mmx_sse_builtins)

gcc/config/bfin/bfin.h

@@ -813,7 +813,7 @@ typedef struct {
 #define EH_RETURN_DATA_REGNO(N)	((N) < 2 ? (N) : INVALID_REGNUM)
 #define EH_RETURN_STACKADJ_RTX	gen_rtx_REG (Pmode, REG_P2)
 #define EH_RETURN_HANDLER_RTX \
-    gen_rtx_MEM (Pmode, plus_constant (frame_pointer_rtx, UNITS_PER_WORD))
+    gen_frame_mem (Pmode, plus_constant (frame_pointer_rtx, UNITS_PER_WORD))
 
 /* Addressing Modes */
 

gcc/config/bfin/bfin.md

@@ -144,7 +144,8 @@
   [(UNSPEC_VOLATILE_EH_RETURN 0)
    (UNSPEC_VOLATILE_CSYNC 1)
    (UNSPEC_VOLATILE_SSYNC 2)
-   (UNSPEC_VOLATILE_LOAD_FUNCDESC 3)])
+   (UNSPEC_VOLATILE_LOAD_FUNCDESC 3)
+   (UNSPEC_VOLATILE_STORE_EH_HANDLER 4)])
 
 (define_constants
   [(MACFLAG_NONE 0)
@@ -2687,12 +2688,20 @@
 		    UNSPEC_VOLATILE_EH_RETURN)]
   ""
 {
-  emit_move_insn (EH_RETURN_HANDLER_RTX, operands[0]);
+  emit_insn (gen_eh_store_handler (EH_RETURN_HANDLER_RTX, operands[0]));
   emit_jump_insn (gen_eh_return_internal ());
   emit_barrier ();
   DONE;
 })
 
+(define_insn "eh_store_handler"
+  [(unspec_volatile [(match_operand:SI 1 "register_operand" "da")]
+		    UNSPEC_VOLATILE_STORE_EH_HANDLER)
+   (clobber (match_operand:SI 0 "memory_operand" "=m"))]
+  ""
+  "%0 = %1%!"
+  [(set_attr "type" "mcst")])
+
 (define_insn_and_split "eh_return_internal"
   [(set (pc)
 	(unspec_volatile [(reg:SI REG_P2)] UNSPEC_VOLATILE_EH_RETURN))]