i386.c (pro_epilogue_adjust_stack): Use EBP for tail call epilogues.

	* config/i386/i386.c (pro_epilogue_adjust_stack): Use EBP
	for tail call epilogues.

From-SVN: r160050

gcc/ChangeLog

 2010-05-30  Jan Hubicka  <jh@suse.cz>
 
+	* config/i386/i386.c (pro_epilogue_adjust_stack): Use EBP
+	for tail call epilogues.
+
+2010-05-30  Jan Hubicka  <jh@suse.cz>
+
 	* passes.c (ipa_write_optimization_summaries_1, ipa_write_summaries_2,
 	ipa_read_summaries_1, ipa_read_optimization_summaries_1): Initilalize dump
 	files.

gcc/config/i386/i386.c

@@ -8363,17 +8363,21 @@ pro_epilogue_adjust_stack (rtx dest, rtx src, rtx offset,
     insn = emit_insn (gen_pro_epilogue_adjust_stack_rex64 (dest, src, offset));
   else
     {
-      rtx r11;
+      rtx tmp;
       /* r11 is used by indirect sibcall return as well, set before the
-	 epilogue and used after the epilogue.  ATM indirect sibcall
-	 shouldn't be used together with huge frame sizes in one
-	 function because of the frame_size check in sibcall.c.  */
-      gcc_assert (style);
-      r11 = gen_rtx_REG (DImode, R11_REG);
-      insn = emit_insn (gen_rtx_SET (DImode, r11, offset));
+	 epilogue and used after the epilogue.  */
+      if (style)
+        tmp = gen_rtx_REG (DImode, R11_REG);
+      else
+	{
+	  gcc_assert (src != hard_frame_pointer_rtx
+		      && dest != hard_frame_pointer_rtx);
+	  tmp = hard_frame_pointer_rtx;
+	}
+      insn = emit_insn (gen_rtx_SET (DImode, tmp, offset));
       if (style < 0)
 	RTX_FRAME_RELATED_P (insn) = 1;
-      insn = emit_insn (gen_pro_epilogue_adjust_stack_rex64_2 (dest, src, r11,
+      insn = emit_insn (gen_pro_epilogue_adjust_stack_rex64_2 (dest, src, tmp,
 							       offset));
     }