generic.texi (ANNOTATE_EXPR): Document 3rd operand.

[gcc.git] / gcc / tree-cfg.c

diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c
index bb30a92189937737775350065228833b0c02546b..2835a4b722c21f0ced3542a505cdd56fae0bb37d 100644 (file)
--- a/gcc/tree-cfg.c
+++ b/gcc/tree-cfg.c
@@ -280,6 +280,11 @@ replace_loop_annotate_in_block (basic_block bb, struct loop *loop)
        case annot_expr_ivdep_kind:
          loop->safelen = INT_MAX;
          break;
+       case annot_expr_unroll_kind:
+         loop->unroll
+           = (unsigned short) tree_to_shwi (gimple_call_arg (stmt, 2));
+         cfun->has_unroll = true;
+         break;
        case annot_expr_no_vector_kind:
          loop->dont_vectorize = true;
          break;
@@ -338,6 +343,7 @@ replace_loop_annotate (void)
          switch ((annot_expr_kind) tree_to_shwi (gimple_call_arg (stmt, 1)))
            {
            case annot_expr_ivdep_kind:
+           case annot_expr_unroll_kind:
            case annot_expr_no_vector_kind:
            case annot_expr_vector_kind:
              break;
@@ -8019,6 +8025,8 @@ print_loop (FILE *file, struct loop *loop, int indent, int verbosity)
       fprintf (file, ", estimate = ");
       print_decu (loop->nb_iterations_estimate, file);
     }
+  if (loop->unroll)
+    fprintf (file, ", unroll = %d", loop->unroll);
   fprintf (file, ")\n");
 
   /* Print loop's body.  */