(fold): Handle COMPONENT_REFs involving CONSTRUCTORs.

From-SVN: r8095

(fold): Handle COMPONENT_REFs involving CONSTRUCTORs.
From-SVN: r8095
e082358b · Jason Merrill · df8b713c · e082358b
Commit e082358b authored Sep 20, 1994 by Jason Merrill
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gcc/fold-const.c
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--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -3422,6 +3422,11 @@ fold (expr)
      return t;
 #endif /* 0 */

+    case COMPONENT_REF:
+      if (TREE_CODE (arg0) == CONSTRUCTOR)
+	t = TREE_VALUE (purpose_member (arg1, CONSTRUCTOR_ELTS (arg0)));
+      return t;
+
    case RANGE_EXPR:
      TREE_CONSTANT (t) = wins;
      return t;