From: Per Bothner <bothner@gcc.gnu.org>
Date: Wed, 13 Apr 1994 20:10:21 +0000 (-0700)
Subject: Don't warn about unused static const variables.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7062b881467ee80ba7ddfe5fa46540c425d47ad8;p=gcc.git

Don't warn about unused static const variables.

From-SVN: r7046
---

diff --git a/gcc/toplev.c b/gcc/toplev.c
index f2e90feceb4..463871dff0a 100644
--- a/gcc/toplev.c
+++ b/gcc/toplev.c
@@ -2325,16 +2325,15 @@ compile_file (name)
 
 	  }
 	/* Warn about static fns or vars defined but not used,
-	   but not about inline functions
-	   since unused inline statics is normal practice.  */
+	   but not about inline functions or static consts
+	   since defining those in header files is normal practice.  */
 	if (warn_unused
-	    && (TREE_CODE (decl) == FUNCTION_DECL
-		|| TREE_CODE (decl) == VAR_DECL)
+	    && ((TREE_CODE (decl) == FUNCTION_DECL && ! DECL_INLINE (decl))
+		|| (TREE_CODE (decl) == VAR_DECL && ! TREE_READONLY (decl)))
 	    && ! DECL_IN_SYSTEM_HEADER (decl)
 	    && ! DECL_EXTERNAL (decl)
 	    && ! TREE_PUBLIC (decl)
 	    && ! TREE_USED (decl)
-	    && ! DECL_INLINE (decl)
 	    && ! DECL_REGISTER (decl)
 	    /* The TREE_USED bit for file-scope decls
 	       is kept in the identifier, to handle multiple