(expand_expr, case CONSTRUCTOR): If TREE_READONLY, set

RTX_UNCHANGING_P in TARGET.

From-SVN: r10696

diff --git a/gcc/expr.c b/gcc/expr.c
index 795ec85..7af6750 100644 (file)
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -4539,6 +4539,13 @@ expand_expr (exp, target, tmode, modifier)
                    MEM_IN_STRUCT_P (target) = 1;
                }
            }
+
+         if (TREE_READONLY (exp))
+           {
+             target = copy_rtx (target);
+             RTX_UNCHANGING_P (target) = 1;
+           }
+
          store_constructor (exp, target);
          return target;
        }