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comparison src/share/vm/c1/c1_LIRGenerator.cpp @ 23660:b5f3a471e646

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Merge.
author Doug Simon <doug.simon@oracle.com>
date Wed, 01 Jun 2016 00:11:44 +0200
parents dd9cc155639c 32b682649973
children f13e777eb255
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23411:d7cf78885a3a 23660:b5f3a471e646
1 /* 1 /*
2 * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2005, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
3644 case lir_membar_storeload : __ membar_storeload(); break; 3644 case lir_membar_storeload : __ membar_storeload(); break;
3645 default : ShouldNotReachHere(); break; 3645 default : ShouldNotReachHere(); break;
3646 } 3646 }
3647 } 3647 }
3648 } 3648 }
3649
3650 LIR_Opr LIRGenerator::maybe_mask_boolean(StoreIndexed* x, LIR_Opr array, LIR_Opr value, CodeEmitInfo*& null_check_info) {
3651 if (x->check_boolean()) {
3652 LIR_Opr value_fixed = rlock_byte(T_BYTE);
3653 if (TwoOperandLIRForm) {
3654 __ move(value, value_fixed);
3655 __ logical_and(value_fixed, LIR_OprFact::intConst(1), value_fixed);
3656 } else {
3657 __ logical_and(value, LIR_OprFact::intConst(1), value_fixed);
3658 }
3659 LIR_Opr klass = new_register(T_METADATA);
3660 __ move(new LIR_Address(array, oopDesc::klass_offset_in_bytes(), T_ADDRESS), klass, null_check_info);
3661 null_check_info = NULL;
3662 LIR_Opr layout = new_register(T_INT);
3663 __ move(new LIR_Address(klass, in_bytes(Klass::layout_helper_offset()), T_INT), layout);
3664 int diffbit = Klass::layout_helper_boolean_diffbit();
3665 __ logical_and(layout, LIR_OprFact::intConst(diffbit), layout);
3666 __ cmp(lir_cond_notEqual, layout, LIR_OprFact::intConst(0));
3667 __ cmove(lir_cond_notEqual, value_fixed, value, value_fixed, T_BYTE);
3668 value = value_fixed;
3669 }
3670 return value;
3671 }