From 4189fb53f29a76336dec42fa20572af538aeb055 Mon Sep 17 00:00:00 2001
From: Joern Rennecke <joern.rennecke@embecosm.com>
Date: Sat, 26 Nov 2011 09:21:47 +0000
Subject: re PR middle-end/50074 (gcc.dg/sibcall-6.c execution test on x86_64
 with -fPIC)

        PR middle-end/50074
        * calls.c (mem_overlaps_already_clobbered_arg_p):
        Return false if no outgoing arguments have been stored so far.

From-SVN: r181738
---
 gcc/calls.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'gcc/calls.c')

diff --git a/gcc/calls.c b/gcc/calls.c
index 382de7f..316f148 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -1668,6 +1668,8 @@ mem_overlaps_already_clobbered_arg_p (rtx addr, unsigned HOST_WIDE_INT size)
 {
   HOST_WIDE_INT i;
 
+  if (sbitmap_empty_p (stored_args_map))
+    return false;
   if (addr == crtl->args.internal_arg_pointer)
     i = 0;
   else if (GET_CODE (addr) == PLUS
-- 
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