Fixed a vrsave problem in the presense of save_world call in the prologue.

Oked by Dale Johannesen.

From-SVN: r99236

gcc/ChangeLog

+2005-05-04 Fariborz Jahanian <fjahanian@apple.com>
+
+	* config/rs6000/rs6000.c (rs6000_emit_prologue): Emit
+	setting of vrsave register for current function after
+	call to save_world is emitted.
+
 2005-05-05  Hans-Peter Nilsson  <hp@bitrange.com>
 
 	* config/mmix/predicates.md: New file.

gcc/config/rs6000/rs6000.c

@@ -13271,7 +13271,7 @@ rs6000_emit_prologue (void)
      epilogue.  */
 
   if (TARGET_ALTIVEC && TARGET_ALTIVEC_VRSAVE
-      && !WORLD_SAVE_P (info) && info->vrsave_mask != 0)
+      && info->vrsave_mask != 0)
     {
       rtx reg, mem, vrsave;
       int offset;
@@ -13286,6 +13286,8 @@ rs6000_emit_prologue (void)
       else
 	emit_insn (gen_rtx_SET (VOIDmode, reg, vrsave));
 
+      if (!WORLD_SAVE_P (info))
+	{
           /* Save VRSAVE.  */
           offset = info->vrsave_save_offset + sp_offset;
           mem
@@ -13293,6 +13295,7 @@ rs6000_emit_prologue (void)
 		           gen_rtx_PLUS (Pmode, frame_reg_rtx, GEN_INT (offset)));
           set_mem_alias_set (mem, rs6000_sr_alias_set);
           insn = emit_move_insn (mem, reg);
+	}
 
       /* Include the registers in the mask.  */
       emit_insn (gen_iorsi3 (reg, reg, GEN_INT ((int) info->vrsave_mask)));