From: Tobias Schlüter <tobias.schlueter@physik.uni-muenchen.de>
Date: Fri, 14 May 2004 12:44:40 +0000 (+0200)
Subject: re PR fortran/14568 (should not warn about unused variables in common blocks)
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ce8fc97bdf64cb3abbe042de3d9030b0c22b74dc;p=platform%2Fupstream%2Fgcc.git

re PR fortran/14568 (should not warn about unused variables in common blocks)

       PR fortran/14568
       * trans-decl.c (generate_local_decl): Don't warn for unused
       variables which are in common blocks.

From-SVN: r81837
---

diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index d818535..efd2a60 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,9 @@
+2004-04-22  Tobias Schlüter  <tobias.schlueter@physik.uni-muenchen.de>
+
+       PR fortran/14568
+       * trans-decl.c (generate_local_decl): Don't warn for unused
+       variables which are in common blocks. 
+
 2004-05-13  Diego Novillo  <dnovillo@redhat.com>
 
 	* Make-lang.in, f95-lang.c, trans-array.c, trans-decl.c,
diff --git a/gcc/fortran/trans-decl.c b/gcc/fortran/trans-decl.c
index c1e8050..13a40e0 100644
--- a/gcc/fortran/trans-decl.c
+++ b/gcc/fortran/trans-decl.c
@@ -1855,7 +1855,9 @@ generate_local_decl (gfc_symbol * sym)
           if (warn_unused_parameter)
             warning ("unused parameter `%s'", sym->name);
         }
-      else if (warn_unused_variable)
+      /* warn for unused variables, but not if they're inside a common
+     block.  */
+      else if (warn_unused_variable && !sym->attr.in_common)
         warning ("unused variable `%s'", sym->name);
     }
 }