c: C2x storage class specifiers in compound literals

[platform/upstream/gcc.git] / gcc / c / c-typeck.cc

diff --git a/gcc/c/c-typeck.cc b/gcc/c/c-typeck.cc
index f919068..0176580 100644 (file)
--- a/gcc/c/c-typeck.cc
+++ b/gcc/c/c-typeck.cc
@@ -5114,6 +5114,11 @@ c_mark_addressable (tree exp, bool array_ref_p)
        break;
 
       case COMPOUND_LITERAL_EXPR:
+       if (C_DECL_REGISTER (COMPOUND_LITERAL_EXPR_DECL (x)))
+         {
+           error ("address of register compound literal requested");
+           return false;
+         }
        TREE_ADDRESSABLE (x) = 1;
        TREE_ADDRESSABLE (COMPOUND_LITERAL_EXPR_DECL (x)) = 1;
        return true;