avr.md ("call_prologue_saves"): Use hi8(gs())/lo8(gs()) instead of pm_lo8/pm_hi8…

avr.md ("call_prologue_saves"): Use hi8(gs())/lo8(gs()) instead of pm_lo8/pm_hi8 to makes this call working on avr6.

	* config/avr/avr.md ("call_prologue_saves"): Use hi8(gs())/lo8(gs())
	instead of pm_lo8/pm_hi8 to makes this call working on avr6.
	* config/avr/avr.c (expand_prologue): Tune "call_prologue" 
	optimization for 'avr6' architecture.

Co-Authored-By: Anatoly Sokolov <aesok@post.ru>

From-SVN: r135953

gcc/ChangeLog

+2008-05-26  Tristan Gingold  <gingold@adacore.com>
+            Anatoly Sokolov  <aesok@post.ru>
+
+	* config/avr/avr.md ("call_prologue_saves"): Use hi8(gs())/lo8(gs())
+	instead of pm_lo8/pm_hi8 to makes this call working on avr6.
+	* config/avr/avr.c (expand_prologue): Tune "call_prologue" 
+	optimization for 'avr6' architecture.
+
 2008-05-26  Andy Hutchinson  <hutchinsonandy@aim.com>
 
 	PR target/34932

gcc/config/avr/avr.c

@@ -682,7 +682,9 @@ expand_prologue (void)
       /* Prevent any attempt to delete the setting of ZERO_REG!  */
       emit_insn (gen_rtx_USE (VOIDmode, zero_reg_rtx));
     }
-  if (minimize && (frame_pointer_needed || live_seq > 6)) 
+  if (minimize && (frame_pointer_needed 
+		   || (AVR_2_BYTE_PC && live_seq > 6)
+		   || live_seq > 7)) 
     {
       insn = emit_move_insn (gen_rtx_REG (HImode, REG_X), 
                              gen_int_mode (size, HImode));

gcc/config/avr/avr.md

@@ -2765,8 +2765,8 @@
    (use (reg:HI REG_X))
    (clobber (reg:HI REG_Z))]
   ""
-  "ldi r30,pm_lo8(1f)
-	ldi r31,pm_hi8(1f)
+  "ldi r30,lo8(gs(1f))
+	ldi r31,hi8(gs(1f))
 	%~jmp __prologue_saves__+((18 - %0) * 2)
 1:"
   [(set_attr_alternative "length"