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21 lines
975 B
C++
21 lines
975 B
C++
$NetBSD: patch-hotspot_src_share_vm_oops_klass.hpp,v 1.1 2015/09/12 16:56:48 joerg Exp $
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Left shift of negative values is UB.
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--- hotspot/src/share/vm/oops/klass.hpp.orig 2015-09-03 15:25:36.000000000 +0000
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+++ hotspot/src/share/vm/oops/klass.hpp
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@@ -352,11 +352,11 @@ protected:
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}
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static bool layout_helper_is_typeArray(jint lh) {
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// _lh_array_tag_type_value == (lh >> _lh_array_tag_shift);
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- return (juint)lh >= (juint)(_lh_array_tag_type_value << _lh_array_tag_shift);
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+ return (juint)lh >= ((juint)_lh_array_tag_type_value << _lh_array_tag_shift);
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}
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static bool layout_helper_is_objArray(jint lh) {
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// _lh_array_tag_obj_value == (lh >> _lh_array_tag_shift);
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- return (jint)lh < (jint)(_lh_array_tag_type_value << _lh_array_tag_shift);
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+ return (jint)lh < (jint)((juint)_lh_array_tag_type_value << _lh_array_tag_shift);
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}
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static int layout_helper_header_size(jint lh) {
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assert(lh < (jint)_lh_neutral_value, "must be array");
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