(finish_decl): For static const variables, preserve

initializers instead of discarding them.

From-SVN: r5245

diff --git a/gcc/c-decl.c b/gcc/c-decl.c
index eede16315b6bb137f6ba4a7a3f87fed803a2a047..eca89fa2365998d96176362257c603a01165c091 100644 (file)
--- a/gcc/c-decl.c
+++ b/gcc/c-decl.c
@@ -3557,7 +3557,15 @@ finish_decl (decl, init, asmspec_tree)
         normal for a local extern redeclaration of an inline function
         to have a copy of the top-level decl's DECL_INLINE.  */
       if (DECL_INITIAL (decl) != 0)
-       DECL_INITIAL (decl) = error_mark_node;
+       {
+         /* If this is a static const variable, then preserve the
+            initializer instead of discarding it so that we can optimize
+            references to it.  */
+         if (TREE_STATIC (decl) && TREE_READONLY (decl))
+           preserve_initializer ();
+         else
+           DECL_INITIAL (decl) = error_mark_node;
+       }
     }
 
 #if 0