PR tree-opt/19108

        * tree-sra.c (generate_element_init_1): Handle RANGE_EXPR.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@97211 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 25 insertions, 4 deletions

diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c
index 9b15a87305c..f8aeebe573e 100644
--- a/gcc/tree-sra.c
+++ b/gcc/tree-sra.c
@@ -1639,10 +1639,31 @@ generate_element_init_1 (struct sra_elt *elt, tree init, tree *list_p)
     case CONSTRUCTOR:
       for (t = CONSTRUCTOR_ELTS (init); t ; t = TREE_CHAIN (t))
 	{
-	  sub = lookup_element (elt, TREE_PURPOSE (t), NULL, NO_INSERT);
-	  if (sub == NULL)
-	    continue;
-	  result &= generate_element_init_1 (sub, TREE_VALUE (t), list_p);
+	  tree purpose = TREE_PURPOSE (t);
+	  tree value = TREE_VALUE (t);
+
+	  if (TREE_CODE (purpose) == RANGE_EXPR)
+	    {
+	      tree lower = TREE_OPERAND (purpose, 0);
+	      tree upper = TREE_OPERAND (purpose, 1);
+
+	      while (1)
+		{
+	  	  sub = lookup_element (elt, lower, NULL, NO_INSERT);
+		  if (sub != NULL)
+		    result &= generate_element_init_1 (sub, value, list_p);
+		  if (tree_int_cst_equal (lower, upper))
+		    break;
+		  lower = int_const_binop (PLUS_EXPR, lower,
+					   integer_one_node, true);
+		}
+	    }
+	  else
+	    {
+	      sub = lookup_element (elt, purpose, NULL, NO_INSERT);
+	      if (sub != NULL)
+		result &= generate_element_init_1 (sub, value, list_p);
+	    }
 	}
       break;