(expand_expr): For COMPONENT_REF, don't force_reg op0 if it is BLKmode.

From-SVN: r3905

diff --git a/gcc/expr.c b/gcc/expr.c
index 40a56190208779659bdd68962ecdd842b2f33fcf..bee6e2d58cdf28dfe83e3e90b0cab04f12f529f1 100644 (file)
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -3854,7 +3854,7 @@ expand_expr (exp, target, tmode, modifier)
        if (CONSTANT_P (op0))
          {
            enum machine_mode mode = TYPE_MODE (TREE_TYPE (tem));
-           if (LEGITIMATE_CONSTANT_P (op0))
+           if (mode != BLKmode && LEGITIMATE_CONSTANT_P (op0))
              op0 = force_reg (mode, op0);
            else
              op0 = validize_mem (force_const_mem (mode, op0));