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comparison src/cpu/x86/vm/c1_LIRAssembler_x86.cpp @ 2112:55f868e91c3b

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7010618: C1: array length should be treated at int on 64bit during array allocation Summary: Sign-extend the length argument during array allocation Reviewed-by: never, kvn
author iveresov
date Thu, 06 Jan 2011 16:03:20 -0800
parents 037c727f35fb
children 1b4e6a5d98e0
comparison
equal deleted inserted replaced
2093:7514897db238 2112:55f868e91c3b
1 /* 1 /*
2 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2000, 2011, 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.
1639 *op->stub()->entry()); 1639 *op->stub()->entry());
1640 __ bind(*op->stub()->continuation()); 1640 __ bind(*op->stub()->continuation());
1641 } 1641 }
1642 1642
1643 void LIR_Assembler::emit_alloc_array(LIR_OpAllocArray* op) { 1643 void LIR_Assembler::emit_alloc_array(LIR_OpAllocArray* op) {
1644 Register len = op->len()->as_register();
1645 LP64_ONLY( __ movslq(len, len); )
1646
1644 if (UseSlowPath || 1647 if (UseSlowPath ||
1645 (!UseFastNewObjectArray && (op->type() == T_OBJECT || op->type() == T_ARRAY)) || 1648 (!UseFastNewObjectArray && (op->type() == T_OBJECT || op->type() == T_ARRAY)) ||
1646 (!UseFastNewTypeArray && (op->type() != T_OBJECT && op->type() != T_ARRAY))) { 1649 (!UseFastNewTypeArray && (op->type() != T_OBJECT && op->type() != T_ARRAY))) {
1647 __ jmp(*op->stub()->entry()); 1650 __ jmp(*op->stub()->entry());
1648 } else { 1651 } else {
1649 Register len = op->len()->as_register();
1650 Register tmp1 = op->tmp1()->as_register(); 1652 Register tmp1 = op->tmp1()->as_register();
1651 Register tmp2 = op->tmp2()->as_register(); 1653 Register tmp2 = op->tmp2()->as_register();
1652 Register tmp3 = op->tmp3()->as_register(); 1654 Register tmp3 = op->tmp3()->as_register();
1653 if (len == tmp1) { 1655 if (len == tmp1) {
1654 tmp1 = tmp3; 1656 tmp1 = tmp3;