components/runtime/openjdk-8/patches/0035-patch-hotspot_src_share_vm_opto_library__call.cpp.patch

   1 $NetBSD: patch-hotspot_src_share_vm_opto_library__call.cpp,v 1.2 2019/11/02 21:31:14 tnn Exp $
   2
   3 Left shift of negative values is UB.
   4
   5 --- hotspot/src/share/vm/opto/library_call.cpp.orig     2019-10-16 01:41:55.000000000 +0000
   6 +++ hotspot/src/share/vm/opto/library_call.cpp
   7 @@ -3803,7 +3803,7 @@ Node* LibraryCallKit::generate_array_gua
   8    }
   9    // Now test the correct condition.
  10    jint  nval = (obj_array
  11 -                ? (jint)(Klass::_lh_array_tag_type_value
  12 +                ? (jint)((juint)Klass::_lh_array_tag_type_value
  13                     <<    Klass::_lh_array_tag_shift)
  14                  : Klass::_lh_neutral_value);
  15    Node* cmp = _gvn.transform(new(C) CmpINode(layout_val, intcon(nval)));