From: Richard Henderson <rth@redhat.com>
Date: Wed, 11 Aug 2004 03:56:58 +0000 (-0700)
Subject: * tree-tailcall.c (suitable_for_tail_opt_p): Also check DECL_EXTERNAL.
X-Git-Tag: releases/gcc-4.0.0~5996
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7109c195f0703e6fa8c44a774cfcaadacf4fe751;p=thirdparty%2Fgcc.git

* tree-tailcall.c (suitable_for_tail_opt_p): Also check DECL_EXTERNAL.

From-SVN: r85791
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1022abd673e7..0c7b2e7f934c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2004-08-10  Richard Henderson  <rth@redhat.com>
+
+	* tree-tailcall.c (suitable_for_tail_opt_p): Also check DECL_EXTERNAL.
+
 2004-08-09  Mark Mitchell  <mark@codesourcery.com>
 
 	* config.gcc (arm*-*-eabi*): New target.
diff --git a/gcc/tree-tailcall.c b/gcc/tree-tailcall.c
index 6e1957c597d3..401a3991468b 100644
--- a/gcc/tree-tailcall.c
+++ b/gcc/tree-tailcall.c
@@ -143,7 +143,7 @@ suitable_for_tail_opt_p (void)
     {
       tree var = VARRAY_TREE (referenced_vars, i);
 
-      if (!TREE_STATIC (var)
+      if (!(TREE_STATIC (var) || DECL_EXTERNAL (var))
 	  && var_ann (var)->mem_tag_kind == NOT_A_TAG
 	  && is_call_clobbered (var))
 	return false;