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4bb6d2f8 · Richard Stallman · cd4f4a28 · 4bb6d2f8
Commit 4bb6d2f8 authored May 13, 1992 by Richard Stallman
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Showing with 13 additions and 1 deletions

gcc/c-typeck.c
+13 -1

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--- a/gcc/c-typeck.c
+++ b/gcc/c-typeck.c
@@ -3332,7 +3332,19 @@ mark_addressable (exp)
      case CONST_DECL:
      case PARM_DECL:
      case RESULT_DECL:
-	if (TREE_REGDECL (x) && !TREE_ADDRESSABLE (x))
+	if (TREE_REGDECL (x) && !TREE_ADDRESSABLE (x)
+	    && TREE_NONLOCAL (x))
+	  {
+	    if (TREE_PUBLIC (x))
+	      {
+		error ("global register variable `%s' used in nested function",
+		       IDENTIFIER_POINTER (DECL_NAME (x)));
+		return 0;
+	      }
+	    pedwarn ("register variable `%s' used in nested function",
+		     IDENTIFIER_POINTER (DECL_NAME (x)));
+	  }
+	else if (TREE_REGDECL (x) && !TREE_ADDRESSABLE (x))
 	  {
 	    if (TREE_PUBLIC (x))
 	      {