26c780da72
6459804: Want client (c1) compiler for x86_64 (amd64) for faster start-up Reviewed-by: kvn
3555 lines
108 KiB
C++
3555 lines
108 KiB
C++
/*
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* Copyright 2003-2008 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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#include "incls/_precompiled.incl"
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#include "incls/_templateTable_x86_64.cpp.incl"
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#ifndef CC_INTERP
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#define __ _masm->
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// Platform-dependent initialization
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void TemplateTable::pd_initialize() {
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// No amd64 specific initialization
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}
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// Address computation: local variables
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static inline Address iaddress(int n) {
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return Address(r14, Interpreter::local_offset_in_bytes(n));
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}
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static inline Address laddress(int n) {
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return iaddress(n + 1);
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}
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static inline Address faddress(int n) {
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return iaddress(n);
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}
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static inline Address daddress(int n) {
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return laddress(n);
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}
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static inline Address aaddress(int n) {
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return iaddress(n);
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}
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static inline Address iaddress(Register r) {
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return Address(r14, r, Address::times_8, Interpreter::value_offset_in_bytes());
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}
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static inline Address laddress(Register r) {
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return Address(r14, r, Address::times_8, Interpreter::local_offset_in_bytes(1));
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}
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static inline Address faddress(Register r) {
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return iaddress(r);
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}
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static inline Address daddress(Register r) {
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return laddress(r);
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}
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static inline Address aaddress(Register r) {
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return iaddress(r);
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}
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static inline Address at_rsp() {
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return Address(rsp, 0);
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}
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// At top of Java expression stack which may be different than esp(). It
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// isn't for category 1 objects.
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static inline Address at_tos () {
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return Address(rsp, Interpreter::expr_offset_in_bytes(0));
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}
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static inline Address at_tos_p1() {
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return Address(rsp, Interpreter::expr_offset_in_bytes(1));
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}
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static inline Address at_tos_p2() {
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return Address(rsp, Interpreter::expr_offset_in_bytes(2));
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}
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static inline Address at_tos_p3() {
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return Address(rsp, Interpreter::expr_offset_in_bytes(3));
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}
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// Condition conversion
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static Assembler::Condition j_not(TemplateTable::Condition cc) {
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switch (cc) {
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case TemplateTable::equal : return Assembler::notEqual;
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case TemplateTable::not_equal : return Assembler::equal;
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case TemplateTable::less : return Assembler::greaterEqual;
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case TemplateTable::less_equal : return Assembler::greater;
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case TemplateTable::greater : return Assembler::lessEqual;
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case TemplateTable::greater_equal: return Assembler::less;
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}
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ShouldNotReachHere();
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return Assembler::zero;
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}
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// Miscelaneous helper routines
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Address TemplateTable::at_bcp(int offset) {
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assert(_desc->uses_bcp(), "inconsistent uses_bcp information");
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return Address(r13, offset);
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}
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void TemplateTable::patch_bytecode(Bytecodes::Code bytecode, Register bc,
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Register scratch,
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bool load_bc_into_scratch/*=true*/) {
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if (!RewriteBytecodes) {
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return;
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}
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// the pair bytecodes have already done the load.
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if (load_bc_into_scratch) {
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__ movl(bc, bytecode);
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}
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Label patch_done;
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if (JvmtiExport::can_post_breakpoint()) {
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Label fast_patch;
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// if a breakpoint is present we can't rewrite the stream directly
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__ movzbl(scratch, at_bcp(0));
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__ cmpl(scratch, Bytecodes::_breakpoint);
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__ jcc(Assembler::notEqual, fast_patch);
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__ get_method(scratch);
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// Let breakpoint table handling rewrite to quicker bytecode
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__ call_VM(noreg,
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CAST_FROM_FN_PTR(address,
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InterpreterRuntime::set_original_bytecode_at),
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scratch, r13, bc);
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#ifndef ASSERT
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__ jmpb(patch_done);
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__ bind(fast_patch);
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}
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#else
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__ jmp(patch_done);
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__ bind(fast_patch);
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}
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Label okay;
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__ load_unsigned_byte(scratch, at_bcp(0));
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__ cmpl(scratch, (int) Bytecodes::java_code(bytecode));
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__ jcc(Assembler::equal, okay);
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__ cmpl(scratch, bc);
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__ jcc(Assembler::equal, okay);
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__ stop("patching the wrong bytecode");
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__ bind(okay);
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#endif
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// patch bytecode
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__ movb(at_bcp(0), bc);
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__ bind(patch_done);
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}
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// Individual instructions
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void TemplateTable::nop() {
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transition(vtos, vtos);
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// nothing to do
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}
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void TemplateTable::shouldnotreachhere() {
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transition(vtos, vtos);
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__ stop("shouldnotreachhere bytecode");
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}
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void TemplateTable::aconst_null() {
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transition(vtos, atos);
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__ xorl(rax, rax);
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}
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void TemplateTable::iconst(int value) {
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transition(vtos, itos);
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if (value == 0) {
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__ xorl(rax, rax);
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} else {
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__ movl(rax, value);
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}
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}
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void TemplateTable::lconst(int value) {
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transition(vtos, ltos);
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if (value == 0) {
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__ xorl(rax, rax);
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} else {
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__ movl(rax, value);
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}
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}
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void TemplateTable::fconst(int value) {
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transition(vtos, ftos);
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static float one = 1.0f, two = 2.0f;
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switch (value) {
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case 0:
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__ xorps(xmm0, xmm0);
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break;
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case 1:
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__ movflt(xmm0, ExternalAddress((address) &one));
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break;
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case 2:
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__ movflt(xmm0, ExternalAddress((address) &two));
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break;
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default:
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ShouldNotReachHere();
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break;
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}
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}
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void TemplateTable::dconst(int value) {
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transition(vtos, dtos);
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static double one = 1.0;
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switch (value) {
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case 0:
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__ xorpd(xmm0, xmm0);
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break;
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case 1:
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__ movdbl(xmm0, ExternalAddress((address) &one));
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break;
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default:
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ShouldNotReachHere();
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break;
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}
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}
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void TemplateTable::bipush() {
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transition(vtos, itos);
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__ load_signed_byte(rax, at_bcp(1));
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}
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void TemplateTable::sipush() {
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transition(vtos, itos);
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__ load_unsigned_word(rax, at_bcp(1));
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__ bswapl(rax);
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__ sarl(rax, 16);
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}
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void TemplateTable::ldc(bool wide) {
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transition(vtos, vtos);
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Label call_ldc, notFloat, notClass, Done;
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if (wide) {
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__ get_unsigned_2_byte_index_at_bcp(rbx, 1);
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} else {
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__ load_unsigned_byte(rbx, at_bcp(1));
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}
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__ get_cpool_and_tags(rcx, rax);
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const int base_offset = constantPoolOopDesc::header_size() * wordSize;
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const int tags_offset = typeArrayOopDesc::header_size(T_BYTE) * wordSize;
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// get type
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__ movzbl(rdx, Address(rax, rbx, Address::times_1, tags_offset));
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// unresolved string - get the resolved string
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__ cmpl(rdx, JVM_CONSTANT_UnresolvedString);
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__ jccb(Assembler::equal, call_ldc);
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// unresolved class - get the resolved class
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__ cmpl(rdx, JVM_CONSTANT_UnresolvedClass);
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__ jccb(Assembler::equal, call_ldc);
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// unresolved class in error state - call into runtime to throw the error
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// from the first resolution attempt
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__ cmpl(rdx, JVM_CONSTANT_UnresolvedClassInError);
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__ jccb(Assembler::equal, call_ldc);
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// resolved class - need to call vm to get java mirror of the class
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__ cmpl(rdx, JVM_CONSTANT_Class);
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__ jcc(Assembler::notEqual, notClass);
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__ bind(call_ldc);
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__ movl(c_rarg1, wide);
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call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), c_rarg1);
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__ push_ptr(rax);
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__ verify_oop(rax);
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__ jmp(Done);
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__ bind(notClass);
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__ cmpl(rdx, JVM_CONSTANT_Float);
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__ jccb(Assembler::notEqual, notFloat);
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// ftos
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__ movflt(xmm0, Address(rcx, rbx, Address::times_8, base_offset));
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__ push_f();
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__ jmp(Done);
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__ bind(notFloat);
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#ifdef ASSERT
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{
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Label L;
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__ cmpl(rdx, JVM_CONSTANT_Integer);
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__ jcc(Assembler::equal, L);
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__ cmpl(rdx, JVM_CONSTANT_String);
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__ jcc(Assembler::equal, L);
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__ stop("unexpected tag type in ldc");
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__ bind(L);
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}
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#endif
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// atos and itos
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Label isOop;
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__ cmpl(rdx, JVM_CONSTANT_Integer);
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__ jcc(Assembler::notEqual, isOop);
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__ movl(rax, Address(rcx, rbx, Address::times_8, base_offset));
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__ push_i(rax);
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__ jmp(Done);
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__ bind(isOop);
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__ movptr(rax, Address(rcx, rbx, Address::times_8, base_offset));
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__ push_ptr(rax);
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if (VerifyOops) {
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__ verify_oop(rax);
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}
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__ bind(Done);
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}
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void TemplateTable::ldc2_w() {
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transition(vtos, vtos);
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Label Long, Done;
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__ get_unsigned_2_byte_index_at_bcp(rbx, 1);
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__ get_cpool_and_tags(rcx, rax);
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const int base_offset = constantPoolOopDesc::header_size() * wordSize;
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const int tags_offset = typeArrayOopDesc::header_size(T_BYTE) * wordSize;
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// get type
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__ cmpb(Address(rax, rbx, Address::times_1, tags_offset),
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JVM_CONSTANT_Double);
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__ jccb(Assembler::notEqual, Long);
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// dtos
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__ movdbl(xmm0, Address(rcx, rbx, Address::times_8, base_offset));
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__ push_d();
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__ jmpb(Done);
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__ bind(Long);
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// ltos
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__ movq(rax, Address(rcx, rbx, Address::times_8, base_offset));
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__ push_l();
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__ bind(Done);
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}
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void TemplateTable::locals_index(Register reg, int offset) {
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__ load_unsigned_byte(reg, at_bcp(offset));
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__ negptr(reg);
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if (TaggedStackInterpreter) __ shlptr(reg, 1); // index = index*2
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}
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void TemplateTable::iload() {
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transition(vtos, itos);
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if (RewriteFrequentPairs) {
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Label rewrite, done;
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const Register bc = c_rarg3;
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assert(rbx != bc, "register damaged");
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// get next byte
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__ load_unsigned_byte(rbx,
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at_bcp(Bytecodes::length_for(Bytecodes::_iload)));
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// if _iload, wait to rewrite to iload2. We only want to rewrite the
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// last two iloads in a pair. Comparing against fast_iload means that
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// the next bytecode is neither an iload or a caload, and therefore
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// an iload pair.
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__ cmpl(rbx, Bytecodes::_iload);
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__ jcc(Assembler::equal, done);
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__ cmpl(rbx, Bytecodes::_fast_iload);
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__ movl(bc, Bytecodes::_fast_iload2);
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__ jccb(Assembler::equal, rewrite);
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// if _caload, rewrite to fast_icaload
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__ cmpl(rbx, Bytecodes::_caload);
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__ movl(bc, Bytecodes::_fast_icaload);
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__ jccb(Assembler::equal, rewrite);
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// rewrite so iload doesn't check again.
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__ movl(bc, Bytecodes::_fast_iload);
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// rewrite
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// bc: fast bytecode
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__ bind(rewrite);
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patch_bytecode(Bytecodes::_iload, bc, rbx, false);
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__ bind(done);
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}
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// Get the local value into tos
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locals_index(rbx);
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__ movl(rax, iaddress(rbx));
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debug_only(__ verify_local_tag(frame::TagValue, rbx));
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}
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void TemplateTable::fast_iload2() {
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transition(vtos, itos);
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locals_index(rbx);
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__ movl(rax, iaddress(rbx));
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debug_only(__ verify_local_tag(frame::TagValue, rbx));
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__ push(itos);
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locals_index(rbx, 3);
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__ movl(rax, iaddress(rbx));
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debug_only(__ verify_local_tag(frame::TagValue, rbx));
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}
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void TemplateTable::fast_iload() {
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transition(vtos, itos);
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locals_index(rbx);
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__ movl(rax, iaddress(rbx));
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debug_only(__ verify_local_tag(frame::TagValue, rbx));
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}
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void TemplateTable::lload() {
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transition(vtos, ltos);
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locals_index(rbx);
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__ movq(rax, laddress(rbx));
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debug_only(__ verify_local_tag(frame::TagCategory2, rbx));
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}
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void TemplateTable::fload() {
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transition(vtos, ftos);
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locals_index(rbx);
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__ movflt(xmm0, faddress(rbx));
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debug_only(__ verify_local_tag(frame::TagValue, rbx));
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}
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void TemplateTable::dload() {
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transition(vtos, dtos);
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locals_index(rbx);
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__ movdbl(xmm0, daddress(rbx));
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debug_only(__ verify_local_tag(frame::TagCategory2, rbx));
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}
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void TemplateTable::aload() {
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transition(vtos, atos);
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locals_index(rbx);
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__ movptr(rax, aaddress(rbx));
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debug_only(__ verify_local_tag(frame::TagReference, rbx));
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}
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void TemplateTable::locals_index_wide(Register reg) {
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__ movl(reg, at_bcp(2));
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__ bswapl(reg);
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__ shrl(reg, 16);
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__ negptr(reg);
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if (TaggedStackInterpreter) __ shlptr(reg, 1); // index = index*2
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}
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void TemplateTable::wide_iload() {
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transition(vtos, itos);
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locals_index_wide(rbx);
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__ movl(rax, iaddress(rbx));
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debug_only(__ verify_local_tag(frame::TagValue, rbx));
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}
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void TemplateTable::wide_lload() {
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transition(vtos, ltos);
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locals_index_wide(rbx);
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__ movq(rax, laddress(rbx));
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debug_only(__ verify_local_tag(frame::TagCategory2, rbx));
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}
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void TemplateTable::wide_fload() {
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transition(vtos, ftos);
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locals_index_wide(rbx);
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__ movflt(xmm0, faddress(rbx));
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debug_only(__ verify_local_tag(frame::TagValue, rbx));
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}
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void TemplateTable::wide_dload() {
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transition(vtos, dtos);
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locals_index_wide(rbx);
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__ movdbl(xmm0, daddress(rbx));
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debug_only(__ verify_local_tag(frame::TagCategory2, rbx));
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}
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void TemplateTable::wide_aload() {
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transition(vtos, atos);
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locals_index_wide(rbx);
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__ movptr(rax, aaddress(rbx));
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debug_only(__ verify_local_tag(frame::TagReference, rbx));
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}
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void TemplateTable::index_check(Register array, Register index) {
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// destroys rbx
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// check array
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__ null_check(array, arrayOopDesc::length_offset_in_bytes());
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// sign extend index for use by indexed load
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__ movl2ptr(index, index);
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// check index
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__ cmpl(index, Address(array, arrayOopDesc::length_offset_in_bytes()));
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if (index != rbx) {
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// ??? convention: move aberrant index into ebx for exception message
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assert(rbx != array, "different registers");
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__ movl(rbx, index);
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}
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__ jump_cc(Assembler::aboveEqual,
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ExternalAddress(Interpreter::_throw_ArrayIndexOutOfBoundsException_entry));
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}
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void TemplateTable::iaload() {
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transition(itos, itos);
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__ pop_ptr(rdx);
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// eax: index
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// rdx: array
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index_check(rdx, rax); // kills rbx
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__ movl(rax, Address(rdx, rax,
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Address::times_4,
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arrayOopDesc::base_offset_in_bytes(T_INT)));
|
|
}
|
|
|
|
void TemplateTable::laload() {
|
|
transition(itos, ltos);
|
|
__ pop_ptr(rdx);
|
|
// eax: index
|
|
// rdx: array
|
|
index_check(rdx, rax); // kills rbx
|
|
__ movq(rax, Address(rdx, rbx,
|
|
Address::times_8,
|
|
arrayOopDesc::base_offset_in_bytes(T_LONG)));
|
|
}
|
|
|
|
void TemplateTable::faload() {
|
|
transition(itos, ftos);
|
|
__ pop_ptr(rdx);
|
|
// eax: index
|
|
// rdx: array
|
|
index_check(rdx, rax); // kills rbx
|
|
__ movflt(xmm0, Address(rdx, rax,
|
|
Address::times_4,
|
|
arrayOopDesc::base_offset_in_bytes(T_FLOAT)));
|
|
}
|
|
|
|
void TemplateTable::daload() {
|
|
transition(itos, dtos);
|
|
__ pop_ptr(rdx);
|
|
// eax: index
|
|
// rdx: array
|
|
index_check(rdx, rax); // kills rbx
|
|
__ movdbl(xmm0, Address(rdx, rax,
|
|
Address::times_8,
|
|
arrayOopDesc::base_offset_in_bytes(T_DOUBLE)));
|
|
}
|
|
|
|
void TemplateTable::aaload() {
|
|
transition(itos, atos);
|
|
__ pop_ptr(rdx);
|
|
// eax: index
|
|
// rdx: array
|
|
index_check(rdx, rax); // kills rbx
|
|
__ load_heap_oop(rax, Address(rdx, rax,
|
|
UseCompressedOops ? Address::times_4 : Address::times_8,
|
|
arrayOopDesc::base_offset_in_bytes(T_OBJECT)));
|
|
}
|
|
|
|
void TemplateTable::baload() {
|
|
transition(itos, itos);
|
|
__ pop_ptr(rdx);
|
|
// eax: index
|
|
// rdx: array
|
|
index_check(rdx, rax); // kills rbx
|
|
__ load_signed_byte(rax,
|
|
Address(rdx, rax,
|
|
Address::times_1,
|
|
arrayOopDesc::base_offset_in_bytes(T_BYTE)));
|
|
}
|
|
|
|
void TemplateTable::caload() {
|
|
transition(itos, itos);
|
|
__ pop_ptr(rdx);
|
|
// eax: index
|
|
// rdx: array
|
|
index_check(rdx, rax); // kills rbx
|
|
__ load_unsigned_word(rax,
|
|
Address(rdx, rax,
|
|
Address::times_2,
|
|
arrayOopDesc::base_offset_in_bytes(T_CHAR)));
|
|
}
|
|
|
|
// iload followed by caload frequent pair
|
|
void TemplateTable::fast_icaload() {
|
|
transition(vtos, itos);
|
|
// load index out of locals
|
|
locals_index(rbx);
|
|
__ movl(rax, iaddress(rbx));
|
|
debug_only(__ verify_local_tag(frame::TagValue, rbx));
|
|
|
|
// eax: index
|
|
// rdx: array
|
|
__ pop_ptr(rdx);
|
|
index_check(rdx, rax); // kills rbx
|
|
__ load_unsigned_word(rax,
|
|
Address(rdx, rax,
|
|
Address::times_2,
|
|
arrayOopDesc::base_offset_in_bytes(T_CHAR)));
|
|
}
|
|
|
|
void TemplateTable::saload() {
|
|
transition(itos, itos);
|
|
__ pop_ptr(rdx);
|
|
// eax: index
|
|
// rdx: array
|
|
index_check(rdx, rax); // kills rbx
|
|
__ load_signed_word(rax,
|
|
Address(rdx, rax,
|
|
Address::times_2,
|
|
arrayOopDesc::base_offset_in_bytes(T_SHORT)));
|
|
}
|
|
|
|
void TemplateTable::iload(int n) {
|
|
transition(vtos, itos);
|
|
__ movl(rax, iaddress(n));
|
|
debug_only(__ verify_local_tag(frame::TagValue, n));
|
|
}
|
|
|
|
void TemplateTable::lload(int n) {
|
|
transition(vtos, ltos);
|
|
__ movq(rax, laddress(n));
|
|
debug_only(__ verify_local_tag(frame::TagCategory2, n));
|
|
}
|
|
|
|
void TemplateTable::fload(int n) {
|
|
transition(vtos, ftos);
|
|
__ movflt(xmm0, faddress(n));
|
|
debug_only(__ verify_local_tag(frame::TagValue, n));
|
|
}
|
|
|
|
void TemplateTable::dload(int n) {
|
|
transition(vtos, dtos);
|
|
__ movdbl(xmm0, daddress(n));
|
|
debug_only(__ verify_local_tag(frame::TagCategory2, n));
|
|
}
|
|
|
|
void TemplateTable::aload(int n) {
|
|
transition(vtos, atos);
|
|
__ movptr(rax, aaddress(n));
|
|
debug_only(__ verify_local_tag(frame::TagReference, n));
|
|
}
|
|
|
|
void TemplateTable::aload_0() {
|
|
transition(vtos, atos);
|
|
// According to bytecode histograms, the pairs:
|
|
//
|
|
// _aload_0, _fast_igetfield
|
|
// _aload_0, _fast_agetfield
|
|
// _aload_0, _fast_fgetfield
|
|
//
|
|
// occur frequently. If RewriteFrequentPairs is set, the (slow)
|
|
// _aload_0 bytecode checks if the next bytecode is either
|
|
// _fast_igetfield, _fast_agetfield or _fast_fgetfield and then
|
|
// rewrites the current bytecode into a pair bytecode; otherwise it
|
|
// rewrites the current bytecode into _fast_aload_0 that doesn't do
|
|
// the pair check anymore.
|
|
//
|
|
// Note: If the next bytecode is _getfield, the rewrite must be
|
|
// delayed, otherwise we may miss an opportunity for a pair.
|
|
//
|
|
// Also rewrite frequent pairs
|
|
// aload_0, aload_1
|
|
// aload_0, iload_1
|
|
// These bytecodes with a small amount of code are most profitable
|
|
// to rewrite
|
|
if (RewriteFrequentPairs) {
|
|
Label rewrite, done;
|
|
const Register bc = c_rarg3;
|
|
assert(rbx != bc, "register damaged");
|
|
// get next byte
|
|
__ load_unsigned_byte(rbx,
|
|
at_bcp(Bytecodes::length_for(Bytecodes::_aload_0)));
|
|
|
|
// do actual aload_0
|
|
aload(0);
|
|
|
|
// if _getfield then wait with rewrite
|
|
__ cmpl(rbx, Bytecodes::_getfield);
|
|
__ jcc(Assembler::equal, done);
|
|
|
|
// if _igetfield then reqrite to _fast_iaccess_0
|
|
assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) ==
|
|
Bytecodes::_aload_0,
|
|
"fix bytecode definition");
|
|
__ cmpl(rbx, Bytecodes::_fast_igetfield);
|
|
__ movl(bc, Bytecodes::_fast_iaccess_0);
|
|
__ jccb(Assembler::equal, rewrite);
|
|
|
|
// if _agetfield then reqrite to _fast_aaccess_0
|
|
assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) ==
|
|
Bytecodes::_aload_0,
|
|
"fix bytecode definition");
|
|
__ cmpl(rbx, Bytecodes::_fast_agetfield);
|
|
__ movl(bc, Bytecodes::_fast_aaccess_0);
|
|
__ jccb(Assembler::equal, rewrite);
|
|
|
|
// if _fgetfield then reqrite to _fast_faccess_0
|
|
assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) ==
|
|
Bytecodes::_aload_0,
|
|
"fix bytecode definition");
|
|
__ cmpl(rbx, Bytecodes::_fast_fgetfield);
|
|
__ movl(bc, Bytecodes::_fast_faccess_0);
|
|
__ jccb(Assembler::equal, rewrite);
|
|
|
|
// else rewrite to _fast_aload0
|
|
assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) ==
|
|
Bytecodes::_aload_0,
|
|
"fix bytecode definition");
|
|
__ movl(bc, Bytecodes::_fast_aload_0);
|
|
|
|
// rewrite
|
|
// bc: fast bytecode
|
|
__ bind(rewrite);
|
|
patch_bytecode(Bytecodes::_aload_0, bc, rbx, false);
|
|
|
|
__ bind(done);
|
|
} else {
|
|
aload(0);
|
|
}
|
|
}
|
|
|
|
void TemplateTable::istore() {
|
|
transition(itos, vtos);
|
|
locals_index(rbx);
|
|
__ movl(iaddress(rbx), rax);
|
|
__ tag_local(frame::TagValue, rbx);
|
|
}
|
|
|
|
void TemplateTable::lstore() {
|
|
transition(ltos, vtos);
|
|
locals_index(rbx);
|
|
__ movq(laddress(rbx), rax);
|
|
__ tag_local(frame::TagCategory2, rbx);
|
|
}
|
|
|
|
void TemplateTable::fstore() {
|
|
transition(ftos, vtos);
|
|
locals_index(rbx);
|
|
__ movflt(faddress(rbx), xmm0);
|
|
__ tag_local(frame::TagValue, rbx);
|
|
}
|
|
|
|
void TemplateTable::dstore() {
|
|
transition(dtos, vtos);
|
|
locals_index(rbx);
|
|
__ movdbl(daddress(rbx), xmm0);
|
|
__ tag_local(frame::TagCategory2, rbx);
|
|
}
|
|
|
|
void TemplateTable::astore() {
|
|
transition(vtos, vtos);
|
|
__ pop_ptr(rax, rdx); // will need to pop tag too
|
|
locals_index(rbx);
|
|
__ movptr(aaddress(rbx), rax);
|
|
__ tag_local(rdx, rbx); // store tag from stack, might be returnAddr
|
|
}
|
|
|
|
void TemplateTable::wide_istore() {
|
|
transition(vtos, vtos);
|
|
__ pop_i();
|
|
locals_index_wide(rbx);
|
|
__ movl(iaddress(rbx), rax);
|
|
__ tag_local(frame::TagValue, rbx);
|
|
}
|
|
|
|
void TemplateTable::wide_lstore() {
|
|
transition(vtos, vtos);
|
|
__ pop_l();
|
|
locals_index_wide(rbx);
|
|
__ movq(laddress(rbx), rax);
|
|
__ tag_local(frame::TagCategory2, rbx);
|
|
}
|
|
|
|
void TemplateTable::wide_fstore() {
|
|
transition(vtos, vtos);
|
|
__ pop_f();
|
|
locals_index_wide(rbx);
|
|
__ movflt(faddress(rbx), xmm0);
|
|
__ tag_local(frame::TagValue, rbx);
|
|
}
|
|
|
|
void TemplateTable::wide_dstore() {
|
|
transition(vtos, vtos);
|
|
__ pop_d();
|
|
locals_index_wide(rbx);
|
|
__ movdbl(daddress(rbx), xmm0);
|
|
__ tag_local(frame::TagCategory2, rbx);
|
|
}
|
|
|
|
void TemplateTable::wide_astore() {
|
|
transition(vtos, vtos);
|
|
__ pop_ptr(rax, rdx); // will need to pop tag too
|
|
locals_index_wide(rbx);
|
|
__ movptr(aaddress(rbx), rax);
|
|
__ tag_local(rdx, rbx); // store tag from stack, might be returnAddr
|
|
}
|
|
|
|
void TemplateTable::iastore() {
|
|
transition(itos, vtos);
|
|
__ pop_i(rbx);
|
|
__ pop_ptr(rdx);
|
|
// eax: value
|
|
// ebx: index
|
|
// rdx: array
|
|
index_check(rdx, rbx); // prefer index in ebx
|
|
__ movl(Address(rdx, rbx,
|
|
Address::times_4,
|
|
arrayOopDesc::base_offset_in_bytes(T_INT)),
|
|
rax);
|
|
}
|
|
|
|
void TemplateTable::lastore() {
|
|
transition(ltos, vtos);
|
|
__ pop_i(rbx);
|
|
__ pop_ptr(rdx);
|
|
// rax: value
|
|
// ebx: index
|
|
// rdx: array
|
|
index_check(rdx, rbx); // prefer index in ebx
|
|
__ movq(Address(rdx, rbx,
|
|
Address::times_8,
|
|
arrayOopDesc::base_offset_in_bytes(T_LONG)),
|
|
rax);
|
|
}
|
|
|
|
void TemplateTable::fastore() {
|
|
transition(ftos, vtos);
|
|
__ pop_i(rbx);
|
|
__ pop_ptr(rdx);
|
|
// xmm0: value
|
|
// ebx: index
|
|
// rdx: array
|
|
index_check(rdx, rbx); // prefer index in ebx
|
|
__ movflt(Address(rdx, rbx,
|
|
Address::times_4,
|
|
arrayOopDesc::base_offset_in_bytes(T_FLOAT)),
|
|
xmm0);
|
|
}
|
|
|
|
void TemplateTable::dastore() {
|
|
transition(dtos, vtos);
|
|
__ pop_i(rbx);
|
|
__ pop_ptr(rdx);
|
|
// xmm0: value
|
|
// ebx: index
|
|
// rdx: array
|
|
index_check(rdx, rbx); // prefer index in ebx
|
|
__ movdbl(Address(rdx, rbx,
|
|
Address::times_8,
|
|
arrayOopDesc::base_offset_in_bytes(T_DOUBLE)),
|
|
xmm0);
|
|
}
|
|
|
|
void TemplateTable::aastore() {
|
|
Label is_null, ok_is_subtype, done;
|
|
transition(vtos, vtos);
|
|
// stack: ..., array, index, value
|
|
__ movptr(rax, at_tos()); // value
|
|
__ movl(rcx, at_tos_p1()); // index
|
|
__ movptr(rdx, at_tos_p2()); // array
|
|
index_check(rdx, rcx); // kills rbx
|
|
// do array store check - check for NULL value first
|
|
__ testptr(rax, rax);
|
|
__ jcc(Assembler::zero, is_null);
|
|
|
|
// Move subklass into rbx
|
|
__ load_klass(rbx, rax);
|
|
// Move superklass into rax
|
|
__ load_klass(rax, rdx);
|
|
__ movptr(rax, Address(rax,
|
|
sizeof(oopDesc) +
|
|
objArrayKlass::element_klass_offset_in_bytes()));
|
|
// Compress array + index*oopSize + 12 into a single register. Frees rcx.
|
|
__ lea(rdx, Address(rdx, rcx,
|
|
UseCompressedOops ? Address::times_4 : Address::times_8,
|
|
arrayOopDesc::base_offset_in_bytes(T_OBJECT)));
|
|
|
|
// Generate subtype check. Blows rcx, rdi
|
|
// Superklass in rax. Subklass in rbx.
|
|
__ gen_subtype_check(rbx, ok_is_subtype);
|
|
|
|
// Come here on failure
|
|
// object is at TOS
|
|
__ jump(ExternalAddress(Interpreter::_throw_ArrayStoreException_entry));
|
|
|
|
// Come here on success
|
|
__ bind(ok_is_subtype);
|
|
__ movptr(rax, at_tos()); // Value
|
|
__ store_heap_oop(Address(rdx, 0), rax);
|
|
__ store_check(rdx);
|
|
__ jmp(done);
|
|
|
|
// Have a NULL in rax, rdx=array, ecx=index. Store NULL at ary[idx]
|
|
__ bind(is_null);
|
|
__ profile_null_seen(rbx);
|
|
__ store_heap_oop(Address(rdx, rcx,
|
|
UseCompressedOops ? Address::times_4 : Address::times_8,
|
|
arrayOopDesc::base_offset_in_bytes(T_OBJECT)),
|
|
rax);
|
|
|
|
// Pop stack arguments
|
|
__ bind(done);
|
|
__ addptr(rsp, 3 * Interpreter::stackElementSize());
|
|
}
|
|
|
|
void TemplateTable::bastore() {
|
|
transition(itos, vtos);
|
|
__ pop_i(rbx);
|
|
__ pop_ptr(rdx);
|
|
// eax: value
|
|
// ebx: index
|
|
// rdx: array
|
|
index_check(rdx, rbx); // prefer index in ebx
|
|
__ movb(Address(rdx, rbx,
|
|
Address::times_1,
|
|
arrayOopDesc::base_offset_in_bytes(T_BYTE)),
|
|
rax);
|
|
}
|
|
|
|
void TemplateTable::castore() {
|
|
transition(itos, vtos);
|
|
__ pop_i(rbx);
|
|
__ pop_ptr(rdx);
|
|
// eax: value
|
|
// ebx: index
|
|
// rdx: array
|
|
index_check(rdx, rbx); // prefer index in ebx
|
|
__ movw(Address(rdx, rbx,
|
|
Address::times_2,
|
|
arrayOopDesc::base_offset_in_bytes(T_CHAR)),
|
|
rax);
|
|
}
|
|
|
|
void TemplateTable::sastore() {
|
|
castore();
|
|
}
|
|
|
|
void TemplateTable::istore(int n) {
|
|
transition(itos, vtos);
|
|
__ movl(iaddress(n), rax);
|
|
__ tag_local(frame::TagValue, n);
|
|
}
|
|
|
|
void TemplateTable::lstore(int n) {
|
|
transition(ltos, vtos);
|
|
__ movq(laddress(n), rax);
|
|
__ tag_local(frame::TagCategory2, n);
|
|
}
|
|
|
|
void TemplateTable::fstore(int n) {
|
|
transition(ftos, vtos);
|
|
__ movflt(faddress(n), xmm0);
|
|
__ tag_local(frame::TagValue, n);
|
|
}
|
|
|
|
void TemplateTable::dstore(int n) {
|
|
transition(dtos, vtos);
|
|
__ movdbl(daddress(n), xmm0);
|
|
__ tag_local(frame::TagCategory2, n);
|
|
}
|
|
|
|
void TemplateTable::astore(int n) {
|
|
transition(vtos, vtos);
|
|
__ pop_ptr(rax, rdx);
|
|
__ movptr(aaddress(n), rax);
|
|
__ tag_local(rdx, n);
|
|
}
|
|
|
|
void TemplateTable::pop() {
|
|
transition(vtos, vtos);
|
|
__ addptr(rsp, Interpreter::stackElementSize());
|
|
}
|
|
|
|
void TemplateTable::pop2() {
|
|
transition(vtos, vtos);
|
|
__ addptr(rsp, 2 * Interpreter::stackElementSize());
|
|
}
|
|
|
|
void TemplateTable::dup() {
|
|
transition(vtos, vtos);
|
|
__ load_ptr_and_tag(0, rax, rdx);
|
|
__ push_ptr(rax, rdx);
|
|
// stack: ..., a, a
|
|
}
|
|
|
|
void TemplateTable::dup_x1() {
|
|
transition(vtos, vtos);
|
|
// stack: ..., a, b
|
|
__ load_ptr_and_tag(0, rax, rdx); // load b
|
|
__ load_ptr_and_tag(1, rcx, rbx); // load a
|
|
__ store_ptr_and_tag(1, rax, rdx); // store b
|
|
__ store_ptr_and_tag(0, rcx, rbx); // store a
|
|
__ push_ptr(rax, rdx); // push b
|
|
// stack: ..., b, a, b
|
|
}
|
|
|
|
void TemplateTable::dup_x2() {
|
|
transition(vtos, vtos);
|
|
// stack: ..., a, b, c
|
|
__ load_ptr_and_tag(0, rax, rdx); // load c
|
|
__ load_ptr_and_tag(2, rcx, rbx); // load a
|
|
__ store_ptr_and_tag(2, rax, rdx); // store c in a
|
|
__ push_ptr(rax, rdx); // push c
|
|
// stack: ..., c, b, c, c
|
|
__ load_ptr_and_tag(2, rax, rdx); // load b
|
|
__ store_ptr_and_tag(2, rcx, rbx); // store a in b
|
|
// stack: ..., c, a, c, c
|
|
__ store_ptr_and_tag(1, rax, rdx); // store b in c
|
|
// stack: ..., c, a, b, c
|
|
}
|
|
|
|
void TemplateTable::dup2() {
|
|
transition(vtos, vtos);
|
|
// stack: ..., a, b
|
|
__ load_ptr_and_tag(1, rax, rdx); // load a
|
|
__ push_ptr(rax, rdx); // push a
|
|
__ load_ptr_and_tag(1, rax, rdx); // load b
|
|
__ push_ptr(rax, rdx); // push b
|
|
// stack: ..., a, b, a, b
|
|
}
|
|
|
|
void TemplateTable::dup2_x1() {
|
|
transition(vtos, vtos);
|
|
// stack: ..., a, b, c
|
|
__ load_ptr_and_tag(0, rcx, rbx); // load c
|
|
__ load_ptr_and_tag(1, rax, rdx); // load b
|
|
__ push_ptr(rax, rdx); // push b
|
|
__ push_ptr(rcx, rbx); // push c
|
|
// stack: ..., a, b, c, b, c
|
|
__ store_ptr_and_tag(3, rcx, rbx); // store c in b
|
|
// stack: ..., a, c, c, b, c
|
|
__ load_ptr_and_tag(4, rcx, rbx); // load a
|
|
__ store_ptr_and_tag(2, rcx, rbx); // store a in 2nd c
|
|
// stack: ..., a, c, a, b, c
|
|
__ store_ptr_and_tag(4, rax, rdx); // store b in a
|
|
// stack: ..., b, c, a, b, c
|
|
}
|
|
|
|
void TemplateTable::dup2_x2() {
|
|
transition(vtos, vtos);
|
|
// stack: ..., a, b, c, d
|
|
__ load_ptr_and_tag(0, rcx, rbx); // load d
|
|
__ load_ptr_and_tag(1, rax, rdx); // load c
|
|
__ push_ptr(rax, rdx); // push c
|
|
__ push_ptr(rcx, rbx); // push d
|
|
// stack: ..., a, b, c, d, c, d
|
|
__ load_ptr_and_tag(4, rax, rdx); // load b
|
|
__ store_ptr_and_tag(2, rax, rdx); // store b in d
|
|
__ store_ptr_and_tag(4, rcx, rbx); // store d in b
|
|
// stack: ..., a, d, c, b, c, d
|
|
__ load_ptr_and_tag(5, rcx, rbx); // load a
|
|
__ load_ptr_and_tag(3, rax, rdx); // load c
|
|
__ store_ptr_and_tag(3, rcx, rbx); // store a in c
|
|
__ store_ptr_and_tag(5, rax, rdx); // store c in a
|
|
// stack: ..., c, d, a, b, c, d
|
|
}
|
|
|
|
void TemplateTable::swap() {
|
|
transition(vtos, vtos);
|
|
// stack: ..., a, b
|
|
__ load_ptr_and_tag(1, rcx, rbx); // load a
|
|
__ load_ptr_and_tag(0, rax, rdx); // load b
|
|
__ store_ptr_and_tag(0, rcx, rbx); // store a in b
|
|
__ store_ptr_and_tag(1, rax, rdx); // store b in a
|
|
// stack: ..., b, a
|
|
}
|
|
|
|
void TemplateTable::iop2(Operation op) {
|
|
transition(itos, itos);
|
|
switch (op) {
|
|
case add : __ pop_i(rdx); __ addl (rax, rdx); break;
|
|
case sub : __ movl(rdx, rax); __ pop_i(rax); __ subl (rax, rdx); break;
|
|
case mul : __ pop_i(rdx); __ imull(rax, rdx); break;
|
|
case _and : __ pop_i(rdx); __ andl (rax, rdx); break;
|
|
case _or : __ pop_i(rdx); __ orl (rax, rdx); break;
|
|
case _xor : __ pop_i(rdx); __ xorl (rax, rdx); break;
|
|
case shl : __ movl(rcx, rax); __ pop_i(rax); __ shll (rax); break;
|
|
case shr : __ movl(rcx, rax); __ pop_i(rax); __ sarl (rax); break;
|
|
case ushr : __ movl(rcx, rax); __ pop_i(rax); __ shrl (rax); break;
|
|
default : ShouldNotReachHere();
|
|
}
|
|
}
|
|
|
|
void TemplateTable::lop2(Operation op) {
|
|
transition(ltos, ltos);
|
|
switch (op) {
|
|
case add : __ pop_l(rdx); __ addptr (rax, rdx); break;
|
|
case sub : __ mov(rdx, rax); __ pop_l(rax); __ subptr (rax, rdx); break;
|
|
case _and : __ pop_l(rdx); __ andptr (rax, rdx); break;
|
|
case _or : __ pop_l(rdx); __ orptr (rax, rdx); break;
|
|
case _xor : __ pop_l(rdx); __ xorptr (rax, rdx); break;
|
|
default : ShouldNotReachHere();
|
|
}
|
|
}
|
|
|
|
void TemplateTable::idiv() {
|
|
transition(itos, itos);
|
|
__ movl(rcx, rax);
|
|
__ pop_i(rax);
|
|
// Note: could xor eax and ecx and compare with (-1 ^ min_int). If
|
|
// they are not equal, one could do a normal division (no correction
|
|
// needed), which may speed up this implementation for the common case.
|
|
// (see also JVM spec., p.243 & p.271)
|
|
__ corrected_idivl(rcx);
|
|
}
|
|
|
|
void TemplateTable::irem() {
|
|
transition(itos, itos);
|
|
__ movl(rcx, rax);
|
|
__ pop_i(rax);
|
|
// Note: could xor eax and ecx and compare with (-1 ^ min_int). If
|
|
// they are not equal, one could do a normal division (no correction
|
|
// needed), which may speed up this implementation for the common case.
|
|
// (see also JVM spec., p.243 & p.271)
|
|
__ corrected_idivl(rcx);
|
|
__ movl(rax, rdx);
|
|
}
|
|
|
|
void TemplateTable::lmul() {
|
|
transition(ltos, ltos);
|
|
__ pop_l(rdx);
|
|
__ imulq(rax, rdx);
|
|
}
|
|
|
|
void TemplateTable::ldiv() {
|
|
transition(ltos, ltos);
|
|
__ mov(rcx, rax);
|
|
__ pop_l(rax);
|
|
// generate explicit div0 check
|
|
__ testq(rcx, rcx);
|
|
__ jump_cc(Assembler::zero,
|
|
ExternalAddress(Interpreter::_throw_ArithmeticException_entry));
|
|
// Note: could xor rax and rcx and compare with (-1 ^ min_int). If
|
|
// they are not equal, one could do a normal division (no correction
|
|
// needed), which may speed up this implementation for the common case.
|
|
// (see also JVM spec., p.243 & p.271)
|
|
__ corrected_idivq(rcx); // kills rbx
|
|
}
|
|
|
|
void TemplateTable::lrem() {
|
|
transition(ltos, ltos);
|
|
__ mov(rcx, rax);
|
|
__ pop_l(rax);
|
|
__ testq(rcx, rcx);
|
|
__ jump_cc(Assembler::zero,
|
|
ExternalAddress(Interpreter::_throw_ArithmeticException_entry));
|
|
// Note: could xor rax and rcx and compare with (-1 ^ min_int). If
|
|
// they are not equal, one could do a normal division (no correction
|
|
// needed), which may speed up this implementation for the common case.
|
|
// (see also JVM spec., p.243 & p.271)
|
|
__ corrected_idivq(rcx); // kills rbx
|
|
__ mov(rax, rdx);
|
|
}
|
|
|
|
void TemplateTable::lshl() {
|
|
transition(itos, ltos);
|
|
__ movl(rcx, rax); // get shift count
|
|
__ pop_l(rax); // get shift value
|
|
__ shlq(rax);
|
|
}
|
|
|
|
void TemplateTable::lshr() {
|
|
transition(itos, ltos);
|
|
__ movl(rcx, rax); // get shift count
|
|
__ pop_l(rax); // get shift value
|
|
__ sarq(rax);
|
|
}
|
|
|
|
void TemplateTable::lushr() {
|
|
transition(itos, ltos);
|
|
__ movl(rcx, rax); // get shift count
|
|
__ pop_l(rax); // get shift value
|
|
__ shrq(rax);
|
|
}
|
|
|
|
void TemplateTable::fop2(Operation op) {
|
|
transition(ftos, ftos);
|
|
switch (op) {
|
|
case add:
|
|
__ addss(xmm0, at_rsp());
|
|
__ addptr(rsp, Interpreter::stackElementSize());
|
|
break;
|
|
case sub:
|
|
__ movflt(xmm1, xmm0);
|
|
__ pop_f(xmm0);
|
|
__ subss(xmm0, xmm1);
|
|
break;
|
|
case mul:
|
|
__ mulss(xmm0, at_rsp());
|
|
__ addptr(rsp, Interpreter::stackElementSize());
|
|
break;
|
|
case div:
|
|
__ movflt(xmm1, xmm0);
|
|
__ pop_f(xmm0);
|
|
__ divss(xmm0, xmm1);
|
|
break;
|
|
case rem:
|
|
__ movflt(xmm1, xmm0);
|
|
__ pop_f(xmm0);
|
|
__ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::frem), 2);
|
|
break;
|
|
default:
|
|
ShouldNotReachHere();
|
|
break;
|
|
}
|
|
}
|
|
|
|
void TemplateTable::dop2(Operation op) {
|
|
transition(dtos, dtos);
|
|
switch (op) {
|
|
case add:
|
|
__ addsd(xmm0, at_rsp());
|
|
__ addptr(rsp, 2 * Interpreter::stackElementSize());
|
|
break;
|
|
case sub:
|
|
__ movdbl(xmm1, xmm0);
|
|
__ pop_d(xmm0);
|
|
__ subsd(xmm0, xmm1);
|
|
break;
|
|
case mul:
|
|
__ mulsd(xmm0, at_rsp());
|
|
__ addptr(rsp, 2 * Interpreter::stackElementSize());
|
|
break;
|
|
case div:
|
|
__ movdbl(xmm1, xmm0);
|
|
__ pop_d(xmm0);
|
|
__ divsd(xmm0, xmm1);
|
|
break;
|
|
case rem:
|
|
__ movdbl(xmm1, xmm0);
|
|
__ pop_d(xmm0);
|
|
__ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::drem), 2);
|
|
break;
|
|
default:
|
|
ShouldNotReachHere();
|
|
break;
|
|
}
|
|
}
|
|
|
|
void TemplateTable::ineg() {
|
|
transition(itos, itos);
|
|
__ negl(rax);
|
|
}
|
|
|
|
void TemplateTable::lneg() {
|
|
transition(ltos, ltos);
|
|
__ negq(rax);
|
|
}
|
|
|
|
// Note: 'double' and 'long long' have 32-bits alignment on x86.
|
|
static jlong* double_quadword(jlong *adr, jlong lo, jlong hi) {
|
|
// Use the expression (adr)&(~0xF) to provide 128-bits aligned address
|
|
// of 128-bits operands for SSE instructions.
|
|
jlong *operand = (jlong*)(((intptr_t)adr)&((intptr_t)(~0xF)));
|
|
// Store the value to a 128-bits operand.
|
|
operand[0] = lo;
|
|
operand[1] = hi;
|
|
return operand;
|
|
}
|
|
|
|
// Buffer for 128-bits masks used by SSE instructions.
|
|
static jlong float_signflip_pool[2*2];
|
|
static jlong double_signflip_pool[2*2];
|
|
|
|
void TemplateTable::fneg() {
|
|
transition(ftos, ftos);
|
|
static jlong *float_signflip = double_quadword(&float_signflip_pool[1], 0x8000000080000000, 0x8000000080000000);
|
|
__ xorps(xmm0, ExternalAddress((address) float_signflip));
|
|
}
|
|
|
|
void TemplateTable::dneg() {
|
|
transition(dtos, dtos);
|
|
static jlong *double_signflip = double_quadword(&double_signflip_pool[1], 0x8000000000000000, 0x8000000000000000);
|
|
__ xorpd(xmm0, ExternalAddress((address) double_signflip));
|
|
}
|
|
|
|
void TemplateTable::iinc() {
|
|
transition(vtos, vtos);
|
|
__ load_signed_byte(rdx, at_bcp(2)); // get constant
|
|
locals_index(rbx);
|
|
__ addl(iaddress(rbx), rdx);
|
|
}
|
|
|
|
void TemplateTable::wide_iinc() {
|
|
transition(vtos, vtos);
|
|
__ movl(rdx, at_bcp(4)); // get constant
|
|
locals_index_wide(rbx);
|
|
__ bswapl(rdx); // swap bytes & sign-extend constant
|
|
__ sarl(rdx, 16);
|
|
__ addl(iaddress(rbx), rdx);
|
|
// Note: should probably use only one movl to get both
|
|
// the index and the constant -> fix this
|
|
}
|
|
|
|
void TemplateTable::convert() {
|
|
// Checking
|
|
#ifdef ASSERT
|
|
{
|
|
TosState tos_in = ilgl;
|
|
TosState tos_out = ilgl;
|
|
switch (bytecode()) {
|
|
case Bytecodes::_i2l: // fall through
|
|
case Bytecodes::_i2f: // fall through
|
|
case Bytecodes::_i2d: // fall through
|
|
case Bytecodes::_i2b: // fall through
|
|
case Bytecodes::_i2c: // fall through
|
|
case Bytecodes::_i2s: tos_in = itos; break;
|
|
case Bytecodes::_l2i: // fall through
|
|
case Bytecodes::_l2f: // fall through
|
|
case Bytecodes::_l2d: tos_in = ltos; break;
|
|
case Bytecodes::_f2i: // fall through
|
|
case Bytecodes::_f2l: // fall through
|
|
case Bytecodes::_f2d: tos_in = ftos; break;
|
|
case Bytecodes::_d2i: // fall through
|
|
case Bytecodes::_d2l: // fall through
|
|
case Bytecodes::_d2f: tos_in = dtos; break;
|
|
default : ShouldNotReachHere();
|
|
}
|
|
switch (bytecode()) {
|
|
case Bytecodes::_l2i: // fall through
|
|
case Bytecodes::_f2i: // fall through
|
|
case Bytecodes::_d2i: // fall through
|
|
case Bytecodes::_i2b: // fall through
|
|
case Bytecodes::_i2c: // fall through
|
|
case Bytecodes::_i2s: tos_out = itos; break;
|
|
case Bytecodes::_i2l: // fall through
|
|
case Bytecodes::_f2l: // fall through
|
|
case Bytecodes::_d2l: tos_out = ltos; break;
|
|
case Bytecodes::_i2f: // fall through
|
|
case Bytecodes::_l2f: // fall through
|
|
case Bytecodes::_d2f: tos_out = ftos; break;
|
|
case Bytecodes::_i2d: // fall through
|
|
case Bytecodes::_l2d: // fall through
|
|
case Bytecodes::_f2d: tos_out = dtos; break;
|
|
default : ShouldNotReachHere();
|
|
}
|
|
transition(tos_in, tos_out);
|
|
}
|
|
#endif // ASSERT
|
|
|
|
static const int64_t is_nan = 0x8000000000000000L;
|
|
|
|
// Conversion
|
|
switch (bytecode()) {
|
|
case Bytecodes::_i2l:
|
|
__ movslq(rax, rax);
|
|
break;
|
|
case Bytecodes::_i2f:
|
|
__ cvtsi2ssl(xmm0, rax);
|
|
break;
|
|
case Bytecodes::_i2d:
|
|
__ cvtsi2sdl(xmm0, rax);
|
|
break;
|
|
case Bytecodes::_i2b:
|
|
__ movsbl(rax, rax);
|
|
break;
|
|
case Bytecodes::_i2c:
|
|
__ movzwl(rax, rax);
|
|
break;
|
|
case Bytecodes::_i2s:
|
|
__ movswl(rax, rax);
|
|
break;
|
|
case Bytecodes::_l2i:
|
|
__ movl(rax, rax);
|
|
break;
|
|
case Bytecodes::_l2f:
|
|
__ cvtsi2ssq(xmm0, rax);
|
|
break;
|
|
case Bytecodes::_l2d:
|
|
__ cvtsi2sdq(xmm0, rax);
|
|
break;
|
|
case Bytecodes::_f2i:
|
|
{
|
|
Label L;
|
|
__ cvttss2sil(rax, xmm0);
|
|
__ cmpl(rax, 0x80000000); // NaN or overflow/underflow?
|
|
__ jcc(Assembler::notEqual, L);
|
|
__ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2i), 1);
|
|
__ bind(L);
|
|
}
|
|
break;
|
|
case Bytecodes::_f2l:
|
|
{
|
|
Label L;
|
|
__ cvttss2siq(rax, xmm0);
|
|
// NaN or overflow/underflow?
|
|
__ cmp64(rax, ExternalAddress((address) &is_nan));
|
|
__ jcc(Assembler::notEqual, L);
|
|
__ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2l), 1);
|
|
__ bind(L);
|
|
}
|
|
break;
|
|
case Bytecodes::_f2d:
|
|
__ cvtss2sd(xmm0, xmm0);
|
|
break;
|
|
case Bytecodes::_d2i:
|
|
{
|
|
Label L;
|
|
__ cvttsd2sil(rax, xmm0);
|
|
__ cmpl(rax, 0x80000000); // NaN or overflow/underflow?
|
|
__ jcc(Assembler::notEqual, L);
|
|
__ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2i), 1);
|
|
__ bind(L);
|
|
}
|
|
break;
|
|
case Bytecodes::_d2l:
|
|
{
|
|
Label L;
|
|
__ cvttsd2siq(rax, xmm0);
|
|
// NaN or overflow/underflow?
|
|
__ cmp64(rax, ExternalAddress((address) &is_nan));
|
|
__ jcc(Assembler::notEqual, L);
|
|
__ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2l), 1);
|
|
__ bind(L);
|
|
}
|
|
break;
|
|
case Bytecodes::_d2f:
|
|
__ cvtsd2ss(xmm0, xmm0);
|
|
break;
|
|
default:
|
|
ShouldNotReachHere();
|
|
}
|
|
}
|
|
|
|
void TemplateTable::lcmp() {
|
|
transition(ltos, itos);
|
|
Label done;
|
|
__ pop_l(rdx);
|
|
__ cmpq(rdx, rax);
|
|
__ movl(rax, -1);
|
|
__ jccb(Assembler::less, done);
|
|
__ setb(Assembler::notEqual, rax);
|
|
__ movzbl(rax, rax);
|
|
__ bind(done);
|
|
}
|
|
|
|
void TemplateTable::float_cmp(bool is_float, int unordered_result) {
|
|
Label done;
|
|
if (is_float) {
|
|
// XXX get rid of pop here, use ... reg, mem32
|
|
__ pop_f(xmm1);
|
|
__ ucomiss(xmm1, xmm0);
|
|
} else {
|
|
// XXX get rid of pop here, use ... reg, mem64
|
|
__ pop_d(xmm1);
|
|
__ ucomisd(xmm1, xmm0);
|
|
}
|
|
if (unordered_result < 0) {
|
|
__ movl(rax, -1);
|
|
__ jccb(Assembler::parity, done);
|
|
__ jccb(Assembler::below, done);
|
|
__ setb(Assembler::notEqual, rdx);
|
|
__ movzbl(rax, rdx);
|
|
} else {
|
|
__ movl(rax, 1);
|
|
__ jccb(Assembler::parity, done);
|
|
__ jccb(Assembler::above, done);
|
|
__ movl(rax, 0);
|
|
__ jccb(Assembler::equal, done);
|
|
__ decrementl(rax);
|
|
}
|
|
__ bind(done);
|
|
}
|
|
|
|
void TemplateTable::branch(bool is_jsr, bool is_wide) {
|
|
__ get_method(rcx); // rcx holds method
|
|
__ profile_taken_branch(rax, rbx); // rax holds updated MDP, rbx
|
|
// holds bumped taken count
|
|
|
|
const ByteSize be_offset = methodOopDesc::backedge_counter_offset() +
|
|
InvocationCounter::counter_offset();
|
|
const ByteSize inv_offset = methodOopDesc::invocation_counter_offset() +
|
|
InvocationCounter::counter_offset();
|
|
const int method_offset = frame::interpreter_frame_method_offset * wordSize;
|
|
|
|
// Load up edx with the branch displacement
|
|
__ movl(rdx, at_bcp(1));
|
|
__ bswapl(rdx);
|
|
|
|
if (!is_wide) {
|
|
__ sarl(rdx, 16);
|
|
}
|
|
__ movl2ptr(rdx, rdx);
|
|
|
|
// Handle all the JSR stuff here, then exit.
|
|
// It's much shorter and cleaner than intermingling with the non-JSR
|
|
// normal-branch stuff occuring below.
|
|
if (is_jsr) {
|
|
// Pre-load the next target bytecode into rbx
|
|
__ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1, 0));
|
|
|
|
// compute return address as bci in rax
|
|
__ lea(rax, at_bcp((is_wide ? 5 : 3) -
|
|
in_bytes(constMethodOopDesc::codes_offset())));
|
|
__ subptr(rax, Address(rcx, methodOopDesc::const_offset()));
|
|
// Adjust the bcp in r13 by the displacement in rdx
|
|
__ addptr(r13, rdx);
|
|
// jsr returns atos that is not an oop
|
|
__ push_i(rax);
|
|
__ dispatch_only(vtos);
|
|
return;
|
|
}
|
|
|
|
// Normal (non-jsr) branch handling
|
|
|
|
// Adjust the bcp in r13 by the displacement in rdx
|
|
__ addptr(r13, rdx);
|
|
|
|
assert(UseLoopCounter || !UseOnStackReplacement,
|
|
"on-stack-replacement requires loop counters");
|
|
Label backedge_counter_overflow;
|
|
Label profile_method;
|
|
Label dispatch;
|
|
if (UseLoopCounter) {
|
|
// increment backedge counter for backward branches
|
|
// rax: MDO
|
|
// ebx: MDO bumped taken-count
|
|
// rcx: method
|
|
// rdx: target offset
|
|
// r13: target bcp
|
|
// r14: locals pointer
|
|
__ testl(rdx, rdx); // check if forward or backward branch
|
|
__ jcc(Assembler::positive, dispatch); // count only if backward branch
|
|
|
|
// increment counter
|
|
__ movl(rax, Address(rcx, be_offset)); // load backedge counter
|
|
__ incrementl(rax, InvocationCounter::count_increment); // increment
|
|
// counter
|
|
__ movl(Address(rcx, be_offset), rax); // store counter
|
|
|
|
__ movl(rax, Address(rcx, inv_offset)); // load invocation counter
|
|
__ andl(rax, InvocationCounter::count_mask_value); // and the status bits
|
|
__ addl(rax, Address(rcx, be_offset)); // add both counters
|
|
|
|
if (ProfileInterpreter) {
|
|
// Test to see if we should create a method data oop
|
|
__ cmp32(rax,
|
|
ExternalAddress((address) &InvocationCounter::InterpreterProfileLimit));
|
|
__ jcc(Assembler::less, dispatch);
|
|
|
|
// if no method data exists, go to profile method
|
|
__ test_method_data_pointer(rax, profile_method);
|
|
|
|
if (UseOnStackReplacement) {
|
|
// check for overflow against ebx which is the MDO taken count
|
|
__ cmp32(rbx,
|
|
ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit));
|
|
__ jcc(Assembler::below, dispatch);
|
|
|
|
// When ProfileInterpreter is on, the backedge_count comes
|
|
// from the methodDataOop, which value does not get reset on
|
|
// the call to frequency_counter_overflow(). To avoid
|
|
// excessive calls to the overflow routine while the method is
|
|
// being compiled, add a second test to make sure the overflow
|
|
// function is called only once every overflow_frequency.
|
|
const int overflow_frequency = 1024;
|
|
__ andl(rbx, overflow_frequency - 1);
|
|
__ jcc(Assembler::zero, backedge_counter_overflow);
|
|
|
|
}
|
|
} else {
|
|
if (UseOnStackReplacement) {
|
|
// check for overflow against eax, which is the sum of the
|
|
// counters
|
|
__ cmp32(rax,
|
|
ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit));
|
|
__ jcc(Assembler::aboveEqual, backedge_counter_overflow);
|
|
|
|
}
|
|
}
|
|
__ bind(dispatch);
|
|
}
|
|
|
|
// Pre-load the next target bytecode into rbx
|
|
__ load_unsigned_byte(rbx, Address(r13, 0));
|
|
|
|
// continue with the bytecode @ target
|
|
// eax: return bci for jsr's, unused otherwise
|
|
// ebx: target bytecode
|
|
// r13: target bcp
|
|
__ dispatch_only(vtos);
|
|
|
|
if (UseLoopCounter) {
|
|
if (ProfileInterpreter) {
|
|
// Out-of-line code to allocate method data oop.
|
|
__ bind(profile_method);
|
|
__ call_VM(noreg,
|
|
CAST_FROM_FN_PTR(address,
|
|
InterpreterRuntime::profile_method), r13);
|
|
__ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode
|
|
__ movptr(rcx, Address(rbp, method_offset));
|
|
__ movptr(rcx, Address(rcx,
|
|
in_bytes(methodOopDesc::method_data_offset())));
|
|
__ movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize),
|
|
rcx);
|
|
__ test_method_data_pointer(rcx, dispatch);
|
|
// offset non-null mdp by MDO::data_offset() + IR::profile_method()
|
|
__ addptr(rcx, in_bytes(methodDataOopDesc::data_offset()));
|
|
__ addptr(rcx, rax);
|
|
__ movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize),
|
|
rcx);
|
|
__ jmp(dispatch);
|
|
}
|
|
|
|
if (UseOnStackReplacement) {
|
|
// invocation counter overflow
|
|
__ bind(backedge_counter_overflow);
|
|
__ negptr(rdx);
|
|
__ addptr(rdx, r13); // branch bcp
|
|
// IcoResult frequency_counter_overflow([JavaThread*], address branch_bcp)
|
|
__ call_VM(noreg,
|
|
CAST_FROM_FN_PTR(address,
|
|
InterpreterRuntime::frequency_counter_overflow),
|
|
rdx);
|
|
__ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode
|
|
|
|
// rax: osr nmethod (osr ok) or NULL (osr not possible)
|
|
// ebx: target bytecode
|
|
// rdx: scratch
|
|
// r14: locals pointer
|
|
// r13: bcp
|
|
__ testptr(rax, rax); // test result
|
|
__ jcc(Assembler::zero, dispatch); // no osr if null
|
|
// nmethod may have been invalidated (VM may block upon call_VM return)
|
|
__ movl(rcx, Address(rax, nmethod::entry_bci_offset()));
|
|
__ cmpl(rcx, InvalidOSREntryBci);
|
|
__ jcc(Assembler::equal, dispatch);
|
|
|
|
// We have the address of an on stack replacement routine in eax
|
|
// We need to prepare to execute the OSR method. First we must
|
|
// migrate the locals and monitors off of the stack.
|
|
|
|
__ mov(r13, rax); // save the nmethod
|
|
|
|
call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin));
|
|
|
|
// eax is OSR buffer, move it to expected parameter location
|
|
__ mov(j_rarg0, rax);
|
|
|
|
// We use j_rarg definitions here so that registers don't conflict as parameter
|
|
// registers change across platforms as we are in the midst of a calling
|
|
// sequence to the OSR nmethod and we don't want collision. These are NOT parameters.
|
|
|
|
const Register retaddr = j_rarg2;
|
|
const Register sender_sp = j_rarg1;
|
|
|
|
// pop the interpreter frame
|
|
__ movptr(sender_sp, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp
|
|
__ leave(); // remove frame anchor
|
|
__ pop(retaddr); // get return address
|
|
__ mov(rsp, sender_sp); // set sp to sender sp
|
|
// Ensure compiled code always sees stack at proper alignment
|
|
__ andptr(rsp, -(StackAlignmentInBytes));
|
|
|
|
// unlike x86 we need no specialized return from compiled code
|
|
// to the interpreter or the call stub.
|
|
|
|
// push the return address
|
|
__ push(retaddr);
|
|
|
|
// and begin the OSR nmethod
|
|
__ jmp(Address(r13, nmethod::osr_entry_point_offset()));
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void TemplateTable::if_0cmp(Condition cc) {
|
|
transition(itos, vtos);
|
|
// assume branch is more often taken than not (loops use backward branches)
|
|
Label not_taken;
|
|
__ testl(rax, rax);
|
|
__ jcc(j_not(cc), not_taken);
|
|
branch(false, false);
|
|
__ bind(not_taken);
|
|
__ profile_not_taken_branch(rax);
|
|
}
|
|
|
|
void TemplateTable::if_icmp(Condition cc) {
|
|
transition(itos, vtos);
|
|
// assume branch is more often taken than not (loops use backward branches)
|
|
Label not_taken;
|
|
__ pop_i(rdx);
|
|
__ cmpl(rdx, rax);
|
|
__ jcc(j_not(cc), not_taken);
|
|
branch(false, false);
|
|
__ bind(not_taken);
|
|
__ profile_not_taken_branch(rax);
|
|
}
|
|
|
|
void TemplateTable::if_nullcmp(Condition cc) {
|
|
transition(atos, vtos);
|
|
// assume branch is more often taken than not (loops use backward branches)
|
|
Label not_taken;
|
|
__ testptr(rax, rax);
|
|
__ jcc(j_not(cc), not_taken);
|
|
branch(false, false);
|
|
__ bind(not_taken);
|
|
__ profile_not_taken_branch(rax);
|
|
}
|
|
|
|
void TemplateTable::if_acmp(Condition cc) {
|
|
transition(atos, vtos);
|
|
// assume branch is more often taken than not (loops use backward branches)
|
|
Label not_taken;
|
|
__ pop_ptr(rdx);
|
|
__ cmpptr(rdx, rax);
|
|
__ jcc(j_not(cc), not_taken);
|
|
branch(false, false);
|
|
__ bind(not_taken);
|
|
__ profile_not_taken_branch(rax);
|
|
}
|
|
|
|
void TemplateTable::ret() {
|
|
transition(vtos, vtos);
|
|
locals_index(rbx);
|
|
__ movslq(rbx, iaddress(rbx)); // get return bci, compute return bcp
|
|
__ profile_ret(rbx, rcx);
|
|
__ get_method(rax);
|
|
__ movptr(r13, Address(rax, methodOopDesc::const_offset()));
|
|
__ lea(r13, Address(r13, rbx, Address::times_1,
|
|
constMethodOopDesc::codes_offset()));
|
|
__ dispatch_next(vtos);
|
|
}
|
|
|
|
void TemplateTable::wide_ret() {
|
|
transition(vtos, vtos);
|
|
locals_index_wide(rbx);
|
|
__ movptr(rbx, aaddress(rbx)); // get return bci, compute return bcp
|
|
__ profile_ret(rbx, rcx);
|
|
__ get_method(rax);
|
|
__ movptr(r13, Address(rax, methodOopDesc::const_offset()));
|
|
__ lea(r13, Address(r13, rbx, Address::times_1, constMethodOopDesc::codes_offset()));
|
|
__ dispatch_next(vtos);
|
|
}
|
|
|
|
void TemplateTable::tableswitch() {
|
|
Label default_case, continue_execution;
|
|
transition(itos, vtos);
|
|
// align r13
|
|
__ lea(rbx, at_bcp(BytesPerInt));
|
|
__ andptr(rbx, -BytesPerInt);
|
|
// load lo & hi
|
|
__ movl(rcx, Address(rbx, BytesPerInt));
|
|
__ movl(rdx, Address(rbx, 2 * BytesPerInt));
|
|
__ bswapl(rcx);
|
|
__ bswapl(rdx);
|
|
// check against lo & hi
|
|
__ cmpl(rax, rcx);
|
|
__ jcc(Assembler::less, default_case);
|
|
__ cmpl(rax, rdx);
|
|
__ jcc(Assembler::greater, default_case);
|
|
// lookup dispatch offset
|
|
__ subl(rax, rcx);
|
|
__ movl(rdx, Address(rbx, rax, Address::times_4, 3 * BytesPerInt));
|
|
__ profile_switch_case(rax, rbx, rcx);
|
|
// continue execution
|
|
__ bind(continue_execution);
|
|
__ bswapl(rdx);
|
|
__ movl2ptr(rdx, rdx);
|
|
__ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1));
|
|
__ addptr(r13, rdx);
|
|
__ dispatch_only(vtos);
|
|
// handle default
|
|
__ bind(default_case);
|
|
__ profile_switch_default(rax);
|
|
__ movl(rdx, Address(rbx, 0));
|
|
__ jmp(continue_execution);
|
|
}
|
|
|
|
void TemplateTable::lookupswitch() {
|
|
transition(itos, itos);
|
|
__ stop("lookupswitch bytecode should have been rewritten");
|
|
}
|
|
|
|
void TemplateTable::fast_linearswitch() {
|
|
transition(itos, vtos);
|
|
Label loop_entry, loop, found, continue_execution;
|
|
// bswap rax so we can avoid bswapping the table entries
|
|
__ bswapl(rax);
|
|
// align r13
|
|
__ lea(rbx, at_bcp(BytesPerInt)); // btw: should be able to get rid of
|
|
// this instruction (change offsets
|
|
// below)
|
|
__ andptr(rbx, -BytesPerInt);
|
|
// set counter
|
|
__ movl(rcx, Address(rbx, BytesPerInt));
|
|
__ bswapl(rcx);
|
|
__ jmpb(loop_entry);
|
|
// table search
|
|
__ bind(loop);
|
|
__ cmpl(rax, Address(rbx, rcx, Address::times_8, 2 * BytesPerInt));
|
|
__ jcc(Assembler::equal, found);
|
|
__ bind(loop_entry);
|
|
__ decrementl(rcx);
|
|
__ jcc(Assembler::greaterEqual, loop);
|
|
// default case
|
|
__ profile_switch_default(rax);
|
|
__ movl(rdx, Address(rbx, 0));
|
|
__ jmp(continue_execution);
|
|
// entry found -> get offset
|
|
__ bind(found);
|
|
__ movl(rdx, Address(rbx, rcx, Address::times_8, 3 * BytesPerInt));
|
|
__ profile_switch_case(rcx, rax, rbx);
|
|
// continue execution
|
|
__ bind(continue_execution);
|
|
__ bswapl(rdx);
|
|
__ movl2ptr(rdx, rdx);
|
|
__ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1));
|
|
__ addptr(r13, rdx);
|
|
__ dispatch_only(vtos);
|
|
}
|
|
|
|
void TemplateTable::fast_binaryswitch() {
|
|
transition(itos, vtos);
|
|
// Implementation using the following core algorithm:
|
|
//
|
|
// int binary_search(int key, LookupswitchPair* array, int n) {
|
|
// // Binary search according to "Methodik des Programmierens" by
|
|
// // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985.
|
|
// int i = 0;
|
|
// int j = n;
|
|
// while (i+1 < j) {
|
|
// // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q)
|
|
// // with Q: for all i: 0 <= i < n: key < a[i]
|
|
// // where a stands for the array and assuming that the (inexisting)
|
|
// // element a[n] is infinitely big.
|
|
// int h = (i + j) >> 1;
|
|
// // i < h < j
|
|
// if (key < array[h].fast_match()) {
|
|
// j = h;
|
|
// } else {
|
|
// i = h;
|
|
// }
|
|
// }
|
|
// // R: a[i] <= key < a[i+1] or Q
|
|
// // (i.e., if key is within array, i is the correct index)
|
|
// return i;
|
|
// }
|
|
|
|
// Register allocation
|
|
const Register key = rax; // already set (tosca)
|
|
const Register array = rbx;
|
|
const Register i = rcx;
|
|
const Register j = rdx;
|
|
const Register h = rdi;
|
|
const Register temp = rsi;
|
|
|
|
// Find array start
|
|
__ lea(array, at_bcp(3 * BytesPerInt)); // btw: should be able to
|
|
// get rid of this
|
|
// instruction (change
|
|
// offsets below)
|
|
__ andptr(array, -BytesPerInt);
|
|
|
|
// Initialize i & j
|
|
__ xorl(i, i); // i = 0;
|
|
__ movl(j, Address(array, -BytesPerInt)); // j = length(array);
|
|
|
|
// Convert j into native byteordering
|
|
__ bswapl(j);
|
|
|
|
// And start
|
|
Label entry;
|
|
__ jmp(entry);
|
|
|
|
// binary search loop
|
|
{
|
|
Label loop;
|
|
__ bind(loop);
|
|
// int h = (i + j) >> 1;
|
|
__ leal(h, Address(i, j, Address::times_1)); // h = i + j;
|
|
__ sarl(h, 1); // h = (i + j) >> 1;
|
|
// if (key < array[h].fast_match()) {
|
|
// j = h;
|
|
// } else {
|
|
// i = h;
|
|
// }
|
|
// Convert array[h].match to native byte-ordering before compare
|
|
__ movl(temp, Address(array, h, Address::times_8));
|
|
__ bswapl(temp);
|
|
__ cmpl(key, temp);
|
|
// j = h if (key < array[h].fast_match())
|
|
__ cmovl(Assembler::less, j, h);
|
|
// i = h if (key >= array[h].fast_match())
|
|
__ cmovl(Assembler::greaterEqual, i, h);
|
|
// while (i+1 < j)
|
|
__ bind(entry);
|
|
__ leal(h, Address(i, 1)); // i+1
|
|
__ cmpl(h, j); // i+1 < j
|
|
__ jcc(Assembler::less, loop);
|
|
}
|
|
|
|
// end of binary search, result index is i (must check again!)
|
|
Label default_case;
|
|
// Convert array[i].match to native byte-ordering before compare
|
|
__ movl(temp, Address(array, i, Address::times_8));
|
|
__ bswapl(temp);
|
|
__ cmpl(key, temp);
|
|
__ jcc(Assembler::notEqual, default_case);
|
|
|
|
// entry found -> j = offset
|
|
__ movl(j , Address(array, i, Address::times_8, BytesPerInt));
|
|
__ profile_switch_case(i, key, array);
|
|
__ bswapl(j);
|
|
__ movl2ptr(j, j);
|
|
__ load_unsigned_byte(rbx, Address(r13, j, Address::times_1));
|
|
__ addptr(r13, j);
|
|
__ dispatch_only(vtos);
|
|
|
|
// default case -> j = default offset
|
|
__ bind(default_case);
|
|
__ profile_switch_default(i);
|
|
__ movl(j, Address(array, -2 * BytesPerInt));
|
|
__ bswapl(j);
|
|
__ movl2ptr(j, j);
|
|
__ load_unsigned_byte(rbx, Address(r13, j, Address::times_1));
|
|
__ addptr(r13, j);
|
|
__ dispatch_only(vtos);
|
|
}
|
|
|
|
|
|
void TemplateTable::_return(TosState state) {
|
|
transition(state, state);
|
|
assert(_desc->calls_vm(),
|
|
"inconsistent calls_vm information"); // call in remove_activation
|
|
|
|
if (_desc->bytecode() == Bytecodes::_return_register_finalizer) {
|
|
assert(state == vtos, "only valid state");
|
|
__ movptr(c_rarg1, aaddress(0));
|
|
__ load_klass(rdi, c_rarg1);
|
|
__ movl(rdi, Address(rdi, Klass::access_flags_offset_in_bytes() + sizeof(oopDesc)));
|
|
__ testl(rdi, JVM_ACC_HAS_FINALIZER);
|
|
Label skip_register_finalizer;
|
|
__ jcc(Assembler::zero, skip_register_finalizer);
|
|
|
|
__ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), c_rarg1);
|
|
|
|
__ bind(skip_register_finalizer);
|
|
}
|
|
|
|
__ remove_activation(state, r13);
|
|
__ jmp(r13);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Volatile variables demand their effects be made known to all CPU's
|
|
// in order. Store buffers on most chips allow reads & writes to
|
|
// reorder; the JMM's ReadAfterWrite.java test fails in -Xint mode
|
|
// without some kind of memory barrier (i.e., it's not sufficient that
|
|
// the interpreter does not reorder volatile references, the hardware
|
|
// also must not reorder them).
|
|
//
|
|
// According to the new Java Memory Model (JMM):
|
|
// (1) All volatiles are serialized wrt to each other. ALSO reads &
|
|
// writes act as aquire & release, so:
|
|
// (2) A read cannot let unrelated NON-volatile memory refs that
|
|
// happen after the read float up to before the read. It's OK for
|
|
// non-volatile memory refs that happen before the volatile read to
|
|
// float down below it.
|
|
// (3) Similar a volatile write cannot let unrelated NON-volatile
|
|
// memory refs that happen BEFORE the write float down to after the
|
|
// write. It's OK for non-volatile memory refs that happen after the
|
|
// volatile write to float up before it.
|
|
//
|
|
// We only put in barriers around volatile refs (they are expensive),
|
|
// not _between_ memory refs (that would require us to track the
|
|
// flavor of the previous memory refs). Requirements (2) and (3)
|
|
// require some barriers before volatile stores and after volatile
|
|
// loads. These nearly cover requirement (1) but miss the
|
|
// volatile-store-volatile-load case. This final case is placed after
|
|
// volatile-stores although it could just as well go before
|
|
// volatile-loads.
|
|
void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits
|
|
order_constraint) {
|
|
// Helper function to insert a is-volatile test and memory barrier
|
|
if (os::is_MP()) { // Not needed on single CPU
|
|
__ membar(order_constraint);
|
|
}
|
|
}
|
|
|
|
void TemplateTable::resolve_cache_and_index(int byte_no,
|
|
Register Rcache,
|
|
Register index) {
|
|
assert(byte_no == 1 || byte_no == 2, "byte_no out of range");
|
|
|
|
const Register temp = rbx;
|
|
assert_different_registers(Rcache, index, temp);
|
|
|
|
const int shift_count = (1 + byte_no) * BitsPerByte;
|
|
Label resolved;
|
|
__ get_cache_and_index_at_bcp(Rcache, index, 1);
|
|
__ movl(temp, Address(Rcache,
|
|
index, Address::times_8,
|
|
constantPoolCacheOopDesc::base_offset() +
|
|
ConstantPoolCacheEntry::indices_offset()));
|
|
__ shrl(temp, shift_count);
|
|
// have we resolved this bytecode?
|
|
__ andl(temp, 0xFF);
|
|
__ cmpl(temp, (int) bytecode());
|
|
__ jcc(Assembler::equal, resolved);
|
|
|
|
// resolve first time through
|
|
address entry;
|
|
switch (bytecode()) {
|
|
case Bytecodes::_getstatic:
|
|
case Bytecodes::_putstatic:
|
|
case Bytecodes::_getfield:
|
|
case Bytecodes::_putfield:
|
|
entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put);
|
|
break;
|
|
case Bytecodes::_invokevirtual:
|
|
case Bytecodes::_invokespecial:
|
|
case Bytecodes::_invokestatic:
|
|
case Bytecodes::_invokeinterface:
|
|
entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke);
|
|
break;
|
|
default:
|
|
ShouldNotReachHere();
|
|
break;
|
|
}
|
|
__ movl(temp, (int) bytecode());
|
|
__ call_VM(noreg, entry, temp);
|
|
|
|
// Update registers with resolved info
|
|
__ get_cache_and_index_at_bcp(Rcache, index, 1);
|
|
__ bind(resolved);
|
|
}
|
|
|
|
// The Rcache and index registers must be set before call
|
|
void TemplateTable::load_field_cp_cache_entry(Register obj,
|
|
Register cache,
|
|
Register index,
|
|
Register off,
|
|
Register flags,
|
|
bool is_static = false) {
|
|
assert_different_registers(cache, index, flags, off);
|
|
|
|
ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset();
|
|
// Field offset
|
|
__ movptr(off, Address(cache, index, Address::times_8,
|
|
in_bytes(cp_base_offset +
|
|
ConstantPoolCacheEntry::f2_offset())));
|
|
// Flags
|
|
__ movl(flags, Address(cache, index, Address::times_8,
|
|
in_bytes(cp_base_offset +
|
|
ConstantPoolCacheEntry::flags_offset())));
|
|
|
|
// klass overwrite register
|
|
if (is_static) {
|
|
__ movptr(obj, Address(cache, index, Address::times_8,
|
|
in_bytes(cp_base_offset +
|
|
ConstantPoolCacheEntry::f1_offset())));
|
|
}
|
|
}
|
|
|
|
void TemplateTable::load_invoke_cp_cache_entry(int byte_no,
|
|
Register method,
|
|
Register itable_index,
|
|
Register flags,
|
|
bool is_invokevirtual,
|
|
bool is_invokevfinal /*unused*/) {
|
|
// setup registers
|
|
const Register cache = rcx;
|
|
const Register index = rdx;
|
|
assert_different_registers(method, flags);
|
|
assert_different_registers(method, cache, index);
|
|
assert_different_registers(itable_index, flags);
|
|
assert_different_registers(itable_index, cache, index);
|
|
// determine constant pool cache field offsets
|
|
const int method_offset = in_bytes(
|
|
constantPoolCacheOopDesc::base_offset() +
|
|
(is_invokevirtual
|
|
? ConstantPoolCacheEntry::f2_offset()
|
|
: ConstantPoolCacheEntry::f1_offset()));
|
|
const int flags_offset = in_bytes(constantPoolCacheOopDesc::base_offset() +
|
|
ConstantPoolCacheEntry::flags_offset());
|
|
// access constant pool cache fields
|
|
const int index_offset = in_bytes(constantPoolCacheOopDesc::base_offset() +
|
|
ConstantPoolCacheEntry::f2_offset());
|
|
|
|
resolve_cache_and_index(byte_no, cache, index);
|
|
|
|
assert(wordSize == 8, "adjust code below");
|
|
__ movptr(method, Address(cache, index, Address::times_8, method_offset));
|
|
if (itable_index != noreg) {
|
|
__ movptr(itable_index,
|
|
Address(cache, index, Address::times_8, index_offset));
|
|
}
|
|
__ movl(flags , Address(cache, index, Address::times_8, flags_offset));
|
|
}
|
|
|
|
|
|
// The registers cache and index expected to be set before call.
|
|
// Correct values of the cache and index registers are preserved.
|
|
void TemplateTable::jvmti_post_field_access(Register cache, Register index,
|
|
bool is_static, bool has_tos) {
|
|
// do the JVMTI work here to avoid disturbing the register state below
|
|
// We use c_rarg registers here because we want to use the register used in
|
|
// the call to the VM
|
|
if (JvmtiExport::can_post_field_access()) {
|
|
// Check to see if a field access watch has been set before we
|
|
// take the time to call into the VM.
|
|
Label L1;
|
|
assert_different_registers(cache, index, rax);
|
|
__ mov32(rax, ExternalAddress((address) JvmtiExport::get_field_access_count_addr()));
|
|
__ testl(rax, rax);
|
|
__ jcc(Assembler::zero, L1);
|
|
|
|
__ get_cache_and_index_at_bcp(c_rarg2, c_rarg3, 1);
|
|
|
|
// cache entry pointer
|
|
__ addptr(c_rarg2, in_bytes(constantPoolCacheOopDesc::base_offset()));
|
|
__ shll(c_rarg3, LogBytesPerWord);
|
|
__ addptr(c_rarg2, c_rarg3);
|
|
if (is_static) {
|
|
__ xorl(c_rarg1, c_rarg1); // NULL object reference
|
|
} else {
|
|
__ movptr(c_rarg1, at_tos()); // get object pointer without popping it
|
|
__ verify_oop(c_rarg1);
|
|
}
|
|
// c_rarg1: object pointer or NULL
|
|
// c_rarg2: cache entry pointer
|
|
// c_rarg3: jvalue object on the stack
|
|
__ call_VM(noreg, CAST_FROM_FN_PTR(address,
|
|
InterpreterRuntime::post_field_access),
|
|
c_rarg1, c_rarg2, c_rarg3);
|
|
__ get_cache_and_index_at_bcp(cache, index, 1);
|
|
__ bind(L1);
|
|
}
|
|
}
|
|
|
|
void TemplateTable::pop_and_check_object(Register r) {
|
|
__ pop_ptr(r);
|
|
__ null_check(r); // for field access must check obj.
|
|
__ verify_oop(r);
|
|
}
|
|
|
|
void TemplateTable::getfield_or_static(int byte_no, bool is_static) {
|
|
transition(vtos, vtos);
|
|
|
|
const Register cache = rcx;
|
|
const Register index = rdx;
|
|
const Register obj = c_rarg3;
|
|
const Register off = rbx;
|
|
const Register flags = rax;
|
|
const Register bc = c_rarg3; // uses same reg as obj, so don't mix them
|
|
|
|
resolve_cache_and_index(byte_no, cache, index);
|
|
jvmti_post_field_access(cache, index, is_static, false);
|
|
load_field_cp_cache_entry(obj, cache, index, off, flags, is_static);
|
|
|
|
if (!is_static) {
|
|
// obj is on the stack
|
|
pop_and_check_object(obj);
|
|
}
|
|
|
|
const Address field(obj, off, Address::times_1);
|
|
|
|
Label Done, notByte, notInt, notShort, notChar,
|
|
notLong, notFloat, notObj, notDouble;
|
|
|
|
__ shrl(flags, ConstantPoolCacheEntry::tosBits);
|
|
assert(btos == 0, "change code, btos != 0");
|
|
|
|
__ andl(flags, 0x0F);
|
|
__ jcc(Assembler::notZero, notByte);
|
|
// btos
|
|
__ load_signed_byte(rax, field);
|
|
__ push(btos);
|
|
// Rewrite bytecode to be faster
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_bgetfield, bc, rbx);
|
|
}
|
|
__ jmp(Done);
|
|
|
|
__ bind(notByte);
|
|
__ cmpl(flags, atos);
|
|
__ jcc(Assembler::notEqual, notObj);
|
|
// atos
|
|
__ load_heap_oop(rax, field);
|
|
__ push(atos);
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_agetfield, bc, rbx);
|
|
}
|
|
__ jmp(Done);
|
|
|
|
__ bind(notObj);
|
|
__ cmpl(flags, itos);
|
|
__ jcc(Assembler::notEqual, notInt);
|
|
// itos
|
|
__ movl(rax, field);
|
|
__ push(itos);
|
|
// Rewrite bytecode to be faster
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_igetfield, bc, rbx);
|
|
}
|
|
__ jmp(Done);
|
|
|
|
__ bind(notInt);
|
|
__ cmpl(flags, ctos);
|
|
__ jcc(Assembler::notEqual, notChar);
|
|
// ctos
|
|
__ load_unsigned_word(rax, field);
|
|
__ push(ctos);
|
|
// Rewrite bytecode to be faster
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_cgetfield, bc, rbx);
|
|
}
|
|
__ jmp(Done);
|
|
|
|
__ bind(notChar);
|
|
__ cmpl(flags, stos);
|
|
__ jcc(Assembler::notEqual, notShort);
|
|
// stos
|
|
__ load_signed_word(rax, field);
|
|
__ push(stos);
|
|
// Rewrite bytecode to be faster
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_sgetfield, bc, rbx);
|
|
}
|
|
__ jmp(Done);
|
|
|
|
__ bind(notShort);
|
|
__ cmpl(flags, ltos);
|
|
__ jcc(Assembler::notEqual, notLong);
|
|
// ltos
|
|
__ movq(rax, field);
|
|
__ push(ltos);
|
|
// Rewrite bytecode to be faster
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_lgetfield, bc, rbx);
|
|
}
|
|
__ jmp(Done);
|
|
|
|
__ bind(notLong);
|
|
__ cmpl(flags, ftos);
|
|
__ jcc(Assembler::notEqual, notFloat);
|
|
// ftos
|
|
__ movflt(xmm0, field);
|
|
__ push(ftos);
|
|
// Rewrite bytecode to be faster
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_fgetfield, bc, rbx);
|
|
}
|
|
__ jmp(Done);
|
|
|
|
__ bind(notFloat);
|
|
#ifdef ASSERT
|
|
__ cmpl(flags, dtos);
|
|
__ jcc(Assembler::notEqual, notDouble);
|
|
#endif
|
|
// dtos
|
|
__ movdbl(xmm0, field);
|
|
__ push(dtos);
|
|
// Rewrite bytecode to be faster
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_dgetfield, bc, rbx);
|
|
}
|
|
#ifdef ASSERT
|
|
__ jmp(Done);
|
|
|
|
__ bind(notDouble);
|
|
__ stop("Bad state");
|
|
#endif
|
|
|
|
__ bind(Done);
|
|
// [jk] not needed currently
|
|
// volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadLoad |
|
|
// Assembler::LoadStore));
|
|
}
|
|
|
|
|
|
void TemplateTable::getfield(int byte_no) {
|
|
getfield_or_static(byte_no, false);
|
|
}
|
|
|
|
void TemplateTable::getstatic(int byte_no) {
|
|
getfield_or_static(byte_no, true);
|
|
}
|
|
|
|
// The registers cache and index expected to be set before call.
|
|
// The function may destroy various registers, just not the cache and index registers.
|
|
void TemplateTable::jvmti_post_field_mod(Register cache, Register index, bool is_static) {
|
|
transition(vtos, vtos);
|
|
|
|
ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset();
|
|
|
|
if (JvmtiExport::can_post_field_modification()) {
|
|
// Check to see if a field modification watch has been set before
|
|
// we take the time to call into the VM.
|
|
Label L1;
|
|
assert_different_registers(cache, index, rax);
|
|
__ mov32(rax, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr()));
|
|
__ testl(rax, rax);
|
|
__ jcc(Assembler::zero, L1);
|
|
|
|
__ get_cache_and_index_at_bcp(c_rarg2, rscratch1, 1);
|
|
|
|
if (is_static) {
|
|
// Life is simple. Null out the object pointer.
|
|
__ xorl(c_rarg1, c_rarg1);
|
|
} else {
|
|
// Life is harder. The stack holds the value on top, followed by
|
|
// the object. We don't know the size of the value, though; it
|
|
// could be one or two words depending on its type. As a result,
|
|
// we must find the type to determine where the object is.
|
|
__ movl(c_rarg3, Address(c_rarg2, rscratch1,
|
|
Address::times_8,
|
|
in_bytes(cp_base_offset +
|
|
ConstantPoolCacheEntry::flags_offset())));
|
|
__ shrl(c_rarg3, ConstantPoolCacheEntry::tosBits);
|
|
// Make sure we don't need to mask rcx for tosBits after the
|
|
// above shift
|
|
ConstantPoolCacheEntry::verify_tosBits();
|
|
__ movptr(c_rarg1, at_tos_p1()); // initially assume a one word jvalue
|
|
__ cmpl(c_rarg3, ltos);
|
|
__ cmovptr(Assembler::equal,
|
|
c_rarg1, at_tos_p2()); // ltos (two word jvalue)
|
|
__ cmpl(c_rarg3, dtos);
|
|
__ cmovptr(Assembler::equal,
|
|
c_rarg1, at_tos_p2()); // dtos (two word jvalue)
|
|
}
|
|
// cache entry pointer
|
|
__ addptr(c_rarg2, in_bytes(cp_base_offset));
|
|
__ shll(rscratch1, LogBytesPerWord);
|
|
__ addptr(c_rarg2, rscratch1);
|
|
// object (tos)
|
|
__ mov(c_rarg3, rsp);
|
|
// c_rarg1: object pointer set up above (NULL if static)
|
|
// c_rarg2: cache entry pointer
|
|
// c_rarg3: jvalue object on the stack
|
|
__ call_VM(noreg,
|
|
CAST_FROM_FN_PTR(address,
|
|
InterpreterRuntime::post_field_modification),
|
|
c_rarg1, c_rarg2, c_rarg3);
|
|
__ get_cache_and_index_at_bcp(cache, index, 1);
|
|
__ bind(L1);
|
|
}
|
|
}
|
|
|
|
void TemplateTable::putfield_or_static(int byte_no, bool is_static) {
|
|
transition(vtos, vtos);
|
|
|
|
const Register cache = rcx;
|
|
const Register index = rdx;
|
|
const Register obj = rcx;
|
|
const Register off = rbx;
|
|
const Register flags = rax;
|
|
const Register bc = c_rarg3;
|
|
|
|
resolve_cache_and_index(byte_no, cache, index);
|
|
jvmti_post_field_mod(cache, index, is_static);
|
|
load_field_cp_cache_entry(obj, cache, index, off, flags, is_static);
|
|
|
|
// [jk] not needed currently
|
|
// volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore |
|
|
// Assembler::StoreStore));
|
|
|
|
Label notVolatile, Done;
|
|
__ movl(rdx, flags);
|
|
__ shrl(rdx, ConstantPoolCacheEntry::volatileField);
|
|
__ andl(rdx, 0x1);
|
|
|
|
// field address
|
|
const Address field(obj, off, Address::times_1);
|
|
|
|
Label notByte, notInt, notShort, notChar,
|
|
notLong, notFloat, notObj, notDouble;
|
|
|
|
__ shrl(flags, ConstantPoolCacheEntry::tosBits);
|
|
|
|
assert(btos == 0, "change code, btos != 0");
|
|
__ andl(flags, 0x0f);
|
|
__ jcc(Assembler::notZero, notByte);
|
|
// btos
|
|
__ pop(btos);
|
|
if (!is_static) pop_and_check_object(obj);
|
|
__ movb(field, rax);
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_bputfield, bc, rbx);
|
|
}
|
|
__ jmp(Done);
|
|
|
|
__ bind(notByte);
|
|
__ cmpl(flags, atos);
|
|
__ jcc(Assembler::notEqual, notObj);
|
|
// atos
|
|
__ pop(atos);
|
|
if (!is_static) pop_and_check_object(obj);
|
|
__ store_heap_oop(field, rax);
|
|
__ store_check(obj, field); // Need to mark card
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_aputfield, bc, rbx);
|
|
}
|
|
__ jmp(Done);
|
|
|
|
__ bind(notObj);
|
|
__ cmpl(flags, itos);
|
|
__ jcc(Assembler::notEqual, notInt);
|
|
// itos
|
|
__ pop(itos);
|
|
if (!is_static) pop_and_check_object(obj);
|
|
__ movl(field, rax);
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_iputfield, bc, rbx);
|
|
}
|
|
__ jmp(Done);
|
|
|
|
__ bind(notInt);
|
|
__ cmpl(flags, ctos);
|
|
__ jcc(Assembler::notEqual, notChar);
|
|
// ctos
|
|
__ pop(ctos);
|
|
if (!is_static) pop_and_check_object(obj);
|
|
__ movw(field, rax);
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_cputfield, bc, rbx);
|
|
}
|
|
__ jmp(Done);
|
|
|
|
__ bind(notChar);
|
|
__ cmpl(flags, stos);
|
|
__ jcc(Assembler::notEqual, notShort);
|
|
// stos
|
|
__ pop(stos);
|
|
if (!is_static) pop_and_check_object(obj);
|
|
__ movw(field, rax);
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_sputfield, bc, rbx);
|
|
}
|
|
__ jmp(Done);
|
|
|
|
__ bind(notShort);
|
|
__ cmpl(flags, ltos);
|
|
__ jcc(Assembler::notEqual, notLong);
|
|
// ltos
|
|
__ pop(ltos);
|
|
if (!is_static) pop_and_check_object(obj);
|
|
__ movq(field, rax);
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_lputfield, bc, rbx);
|
|
}
|
|
__ jmp(Done);
|
|
|
|
__ bind(notLong);
|
|
__ cmpl(flags, ftos);
|
|
__ jcc(Assembler::notEqual, notFloat);
|
|
// ftos
|
|
__ pop(ftos);
|
|
if (!is_static) pop_and_check_object(obj);
|
|
__ movflt(field, xmm0);
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_fputfield, bc, rbx);
|
|
}
|
|
__ jmp(Done);
|
|
|
|
__ bind(notFloat);
|
|
#ifdef ASSERT
|
|
__ cmpl(flags, dtos);
|
|
__ jcc(Assembler::notEqual, notDouble);
|
|
#endif
|
|
// dtos
|
|
__ pop(dtos);
|
|
if (!is_static) pop_and_check_object(obj);
|
|
__ movdbl(field, xmm0);
|
|
if (!is_static) {
|
|
patch_bytecode(Bytecodes::_fast_dputfield, bc, rbx);
|
|
}
|
|
|
|
#ifdef ASSERT
|
|
__ jmp(Done);
|
|
|
|
__ bind(notDouble);
|
|
__ stop("Bad state");
|
|
#endif
|
|
|
|
__ bind(Done);
|
|
// Check for volatile store
|
|
__ testl(rdx, rdx);
|
|
__ jcc(Assembler::zero, notVolatile);
|
|
volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad |
|
|
Assembler::StoreStore));
|
|
|
|
__ bind(notVolatile);
|
|
}
|
|
|
|
void TemplateTable::putfield(int byte_no) {
|
|
putfield_or_static(byte_no, false);
|
|
}
|
|
|
|
void TemplateTable::putstatic(int byte_no) {
|
|
putfield_or_static(byte_no, true);
|
|
}
|
|
|
|
void TemplateTable::jvmti_post_fast_field_mod() {
|
|
if (JvmtiExport::can_post_field_modification()) {
|
|
// Check to see if a field modification watch has been set before
|
|
// we take the time to call into the VM.
|
|
Label L2;
|
|
__ mov32(c_rarg3, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr()));
|
|
__ testl(c_rarg3, c_rarg3);
|
|
__ jcc(Assembler::zero, L2);
|
|
__ pop_ptr(rbx); // copy the object pointer from tos
|
|
__ verify_oop(rbx);
|
|
__ push_ptr(rbx); // put the object pointer back on tos
|
|
__ subptr(rsp, sizeof(jvalue)); // add space for a jvalue object
|
|
__ mov(c_rarg3, rsp);
|
|
const Address field(c_rarg3, 0);
|
|
|
|
switch (bytecode()) { // load values into the jvalue object
|
|
case Bytecodes::_fast_aputfield: __ movq(field, rax); break;
|
|
case Bytecodes::_fast_lputfield: __ movq(field, rax); break;
|
|
case Bytecodes::_fast_iputfield: __ movl(field, rax); break;
|
|
case Bytecodes::_fast_bputfield: __ movb(field, rax); break;
|
|
case Bytecodes::_fast_sputfield: // fall through
|
|
case Bytecodes::_fast_cputfield: __ movw(field, rax); break;
|
|
case Bytecodes::_fast_fputfield: __ movflt(field, xmm0); break;
|
|
case Bytecodes::_fast_dputfield: __ movdbl(field, xmm0); break;
|
|
default:
|
|
ShouldNotReachHere();
|
|
}
|
|
|
|
// Save rax because call_VM() will clobber it, then use it for
|
|
// JVMTI purposes
|
|
__ push(rax);
|
|
// access constant pool cache entry
|
|
__ get_cache_entry_pointer_at_bcp(c_rarg2, rax, 1);
|
|
__ verify_oop(rbx);
|
|
// rbx: object pointer copied above
|
|
// c_rarg2: cache entry pointer
|
|
// c_rarg3: jvalue object on the stack
|
|
__ call_VM(noreg,
|
|
CAST_FROM_FN_PTR(address,
|
|
InterpreterRuntime::post_field_modification),
|
|
rbx, c_rarg2, c_rarg3);
|
|
__ pop(rax); // restore lower value
|
|
__ addptr(rsp, sizeof(jvalue)); // release jvalue object space
|
|
__ bind(L2);
|
|
}
|
|
}
|
|
|
|
void TemplateTable::fast_storefield(TosState state) {
|
|
transition(state, vtos);
|
|
|
|
ByteSize base = constantPoolCacheOopDesc::base_offset();
|
|
|
|
jvmti_post_fast_field_mod();
|
|
|
|
// access constant pool cache
|
|
__ get_cache_and_index_at_bcp(rcx, rbx, 1);
|
|
|
|
// test for volatile with rdx
|
|
__ movl(rdx, Address(rcx, rbx, Address::times_8,
|
|
in_bytes(base +
|
|
ConstantPoolCacheEntry::flags_offset())));
|
|
|
|
// replace index with field offset from cache entry
|
|
__ movptr(rbx, Address(rcx, rbx, Address::times_8,
|
|
in_bytes(base + ConstantPoolCacheEntry::f2_offset())));
|
|
|
|
// [jk] not needed currently
|
|
// volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore |
|
|
// Assembler::StoreStore));
|
|
|
|
Label notVolatile;
|
|
__ shrl(rdx, ConstantPoolCacheEntry::volatileField);
|
|
__ andl(rdx, 0x1);
|
|
|
|
// Get object from stack
|
|
pop_and_check_object(rcx);
|
|
|
|
// field address
|
|
const Address field(rcx, rbx, Address::times_1);
|
|
|
|
// access field
|
|
switch (bytecode()) {
|
|
case Bytecodes::_fast_aputfield:
|
|
__ store_heap_oop(field, rax);
|
|
__ store_check(rcx, field);
|
|
break;
|
|
case Bytecodes::_fast_lputfield:
|
|
__ movq(field, rax);
|
|
break;
|
|
case Bytecodes::_fast_iputfield:
|
|
__ movl(field, rax);
|
|
break;
|
|
case Bytecodes::_fast_bputfield:
|
|
__ movb(field, rax);
|
|
break;
|
|
case Bytecodes::_fast_sputfield:
|
|
// fall through
|
|
case Bytecodes::_fast_cputfield:
|
|
__ movw(field, rax);
|
|
break;
|
|
case Bytecodes::_fast_fputfield:
|
|
__ movflt(field, xmm0);
|
|
break;
|
|
case Bytecodes::_fast_dputfield:
|
|
__ movdbl(field, xmm0);
|
|
break;
|
|
default:
|
|
ShouldNotReachHere();
|
|
}
|
|
|
|
// Check for volatile store
|
|
__ testl(rdx, rdx);
|
|
__ jcc(Assembler::zero, notVolatile);
|
|
volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad |
|
|
Assembler::StoreStore));
|
|
__ bind(notVolatile);
|
|
}
|
|
|
|
|
|
void TemplateTable::fast_accessfield(TosState state) {
|
|
transition(atos, state);
|
|
|
|
// Do the JVMTI work here to avoid disturbing the register state below
|
|
if (JvmtiExport::can_post_field_access()) {
|
|
// Check to see if a field access watch has been set before we
|
|
// take the time to call into the VM.
|
|
Label L1;
|
|
__ mov32(rcx, ExternalAddress((address) JvmtiExport::get_field_access_count_addr()));
|
|
__ testl(rcx, rcx);
|
|
__ jcc(Assembler::zero, L1);
|
|
// access constant pool cache entry
|
|
__ get_cache_entry_pointer_at_bcp(c_rarg2, rcx, 1);
|
|
__ verify_oop(rax);
|
|
__ mov(r12, rax); // save object pointer before call_VM() clobbers it
|
|
__ mov(c_rarg1, rax);
|
|
// c_rarg1: object pointer copied above
|
|
// c_rarg2: cache entry pointer
|
|
__ call_VM(noreg,
|
|
CAST_FROM_FN_PTR(address,
|
|
InterpreterRuntime::post_field_access),
|
|
c_rarg1, c_rarg2);
|
|
__ mov(rax, r12); // restore object pointer
|
|
__ reinit_heapbase();
|
|
__ bind(L1);
|
|
}
|
|
|
|
// access constant pool cache
|
|
__ get_cache_and_index_at_bcp(rcx, rbx, 1);
|
|
// replace index with field offset from cache entry
|
|
// [jk] not needed currently
|
|
// if (os::is_MP()) {
|
|
// __ movl(rdx, Address(rcx, rbx, Address::times_8,
|
|
// in_bytes(constantPoolCacheOopDesc::base_offset() +
|
|
// ConstantPoolCacheEntry::flags_offset())));
|
|
// __ shrl(rdx, ConstantPoolCacheEntry::volatileField);
|
|
// __ andl(rdx, 0x1);
|
|
// }
|
|
__ movptr(rbx, Address(rcx, rbx, Address::times_8,
|
|
in_bytes(constantPoolCacheOopDesc::base_offset() +
|
|
ConstantPoolCacheEntry::f2_offset())));
|
|
|
|
// rax: object
|
|
__ verify_oop(rax);
|
|
__ null_check(rax);
|
|
Address field(rax, rbx, Address::times_1);
|
|
|
|
// access field
|
|
switch (bytecode()) {
|
|
case Bytecodes::_fast_agetfield:
|
|
__ load_heap_oop(rax, field);
|
|
__ verify_oop(rax);
|
|
break;
|
|
case Bytecodes::_fast_lgetfield:
|
|
__ movq(rax, field);
|
|
break;
|
|
case Bytecodes::_fast_igetfield:
|
|
__ movl(rax, field);
|
|
break;
|
|
case Bytecodes::_fast_bgetfield:
|
|
__ movsbl(rax, field);
|
|
break;
|
|
case Bytecodes::_fast_sgetfield:
|
|
__ load_signed_word(rax, field);
|
|
break;
|
|
case Bytecodes::_fast_cgetfield:
|
|
__ load_unsigned_word(rax, field);
|
|
break;
|
|
case Bytecodes::_fast_fgetfield:
|
|
__ movflt(xmm0, field);
|
|
break;
|
|
case Bytecodes::_fast_dgetfield:
|
|
__ movdbl(xmm0, field);
|
|
break;
|
|
default:
|
|
ShouldNotReachHere();
|
|
}
|
|
// [jk] not needed currently
|
|
// if (os::is_MP()) {
|
|
// Label notVolatile;
|
|
// __ testl(rdx, rdx);
|
|
// __ jcc(Assembler::zero, notVolatile);
|
|
// __ membar(Assembler::LoadLoad);
|
|
// __ bind(notVolatile);
|
|
//};
|
|
}
|
|
|
|
void TemplateTable::fast_xaccess(TosState state) {
|
|
transition(vtos, state);
|
|
|
|
// get receiver
|
|
__ movptr(rax, aaddress(0));
|
|
debug_only(__ verify_local_tag(frame::TagReference, 0));
|
|
// access constant pool cache
|
|
__ get_cache_and_index_at_bcp(rcx, rdx, 2);
|
|
__ movptr(rbx,
|
|
Address(rcx, rdx, Address::times_8,
|
|
in_bytes(constantPoolCacheOopDesc::base_offset() +
|
|
ConstantPoolCacheEntry::f2_offset())));
|
|
// make sure exception is reported in correct bcp range (getfield is
|
|
// next instruction)
|
|
__ increment(r13);
|
|
__ null_check(rax);
|
|
switch (state) {
|
|
case itos:
|
|
__ movl(rax, Address(rax, rbx, Address::times_1));
|
|
break;
|
|
case atos:
|
|
__ load_heap_oop(rax, Address(rax, rbx, Address::times_1));
|
|
__ verify_oop(rax);
|
|
break;
|
|
case ftos:
|
|
__ movflt(xmm0, Address(rax, rbx, Address::times_1));
|
|
break;
|
|
default:
|
|
ShouldNotReachHere();
|
|
}
|
|
|
|
// [jk] not needed currently
|
|
// if (os::is_MP()) {
|
|
// Label notVolatile;
|
|
// __ movl(rdx, Address(rcx, rdx, Address::times_8,
|
|
// in_bytes(constantPoolCacheOopDesc::base_offset() +
|
|
// ConstantPoolCacheEntry::flags_offset())));
|
|
// __ shrl(rdx, ConstantPoolCacheEntry::volatileField);
|
|
// __ testl(rdx, 0x1);
|
|
// __ jcc(Assembler::zero, notVolatile);
|
|
// __ membar(Assembler::LoadLoad);
|
|
// __ bind(notVolatile);
|
|
// }
|
|
|
|
__ decrement(r13);
|
|
}
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Calls
|
|
|
|
void TemplateTable::count_calls(Register method, Register temp) {
|
|
// implemented elsewhere
|
|
ShouldNotReachHere();
|
|
}
|
|
|
|
void TemplateTable::prepare_invoke(Register method,
|
|
Register index,
|
|
int byte_no,
|
|
Bytecodes::Code code) {
|
|
// determine flags
|
|
const bool is_invokeinterface = code == Bytecodes::_invokeinterface;
|
|
const bool is_invokevirtual = code == Bytecodes::_invokevirtual;
|
|
const bool is_invokespecial = code == Bytecodes::_invokespecial;
|
|
const bool load_receiver = code != Bytecodes::_invokestatic;
|
|
const bool receiver_null_check = is_invokespecial;
|
|
const bool save_flags = is_invokeinterface || is_invokevirtual;
|
|
// setup registers & access constant pool cache
|
|
const Register recv = rcx;
|
|
const Register flags = rdx;
|
|
assert_different_registers(method, index, recv, flags);
|
|
|
|
// save 'interpreter return address'
|
|
__ save_bcp();
|
|
|
|
load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual);
|
|
|
|
// load receiver if needed (note: no return address pushed yet)
|
|
if (load_receiver) {
|
|
__ movl(recv, flags);
|
|
__ andl(recv, 0xFF);
|
|
if (TaggedStackInterpreter) __ shll(recv, 1); // index*2
|
|
__ movptr(recv, Address(rsp, recv, Address::times_8,
|
|
-Interpreter::expr_offset_in_bytes(1)));
|
|
__ verify_oop(recv);
|
|
}
|
|
|
|
// do null check if needed
|
|
if (receiver_null_check) {
|
|
__ null_check(recv);
|
|
}
|
|
|
|
if (save_flags) {
|
|
__ movl(r13, flags);
|
|
}
|
|
|
|
// compute return type
|
|
__ shrl(flags, ConstantPoolCacheEntry::tosBits);
|
|
// Make sure we don't need to mask flags for tosBits after the above shift
|
|
ConstantPoolCacheEntry::verify_tosBits();
|
|
// load return address
|
|
{
|
|
ExternalAddress return_5((address)Interpreter::return_5_addrs_by_index_table());
|
|
ExternalAddress return_3((address)Interpreter::return_3_addrs_by_index_table());
|
|
__ lea(rscratch1, (is_invokeinterface ? return_5 : return_3));
|
|
__ movptr(flags, Address(rscratch1, flags, Address::times_8));
|
|
}
|
|
|
|
// push return address
|
|
__ push(flags);
|
|
|
|
// Restore flag field from the constant pool cache, and restore esi
|
|
// for later null checks. r13 is the bytecode pointer
|
|
if (save_flags) {
|
|
__ movl(flags, r13);
|
|
__ restore_bcp();
|
|
}
|
|
}
|
|
|
|
|
|
void TemplateTable::invokevirtual_helper(Register index,
|
|
Register recv,
|
|
Register flags) {
|
|
// Uses temporary registers rax, rdx assert_different_registers(index, recv, rax, rdx);
|
|
|
|
// Test for an invoke of a final method
|
|
Label notFinal;
|
|
__ movl(rax, flags);
|
|
__ andl(rax, (1 << ConstantPoolCacheEntry::vfinalMethod));
|
|
__ jcc(Assembler::zero, notFinal);
|
|
|
|
const Register method = index; // method must be rbx
|
|
assert(method == rbx,
|
|
"methodOop must be rbx for interpreter calling convention");
|
|
|
|
// do the call - the index is actually the method to call
|
|
__ verify_oop(method);
|
|
|
|
// It's final, need a null check here!
|
|
__ null_check(recv);
|
|
|
|
// profile this call
|
|
__ profile_final_call(rax);
|
|
|
|
__ jump_from_interpreted(method, rax);
|
|
|
|
__ bind(notFinal);
|
|
|
|
// get receiver klass
|
|
__ null_check(recv, oopDesc::klass_offset_in_bytes());
|
|
__ load_klass(rax, recv);
|
|
|
|
__ verify_oop(rax);
|
|
|
|
// profile this call
|
|
__ profile_virtual_call(rax, r14, rdx);
|
|
|
|
// get target methodOop & entry point
|
|
const int base = instanceKlass::vtable_start_offset() * wordSize;
|
|
assert(vtableEntry::size() * wordSize == 8,
|
|
"adjust the scaling in the code below");
|
|
__ movptr(method, Address(rax, index,
|
|
Address::times_8,
|
|
base + vtableEntry::method_offset_in_bytes()));
|
|
__ movptr(rdx, Address(method, methodOopDesc::interpreter_entry_offset()));
|
|
__ jump_from_interpreted(method, rdx);
|
|
}
|
|
|
|
|
|
void TemplateTable::invokevirtual(int byte_no) {
|
|
transition(vtos, vtos);
|
|
prepare_invoke(rbx, noreg, byte_no, bytecode());
|
|
|
|
// rbx: index
|
|
// rcx: receiver
|
|
// rdx: flags
|
|
|
|
invokevirtual_helper(rbx, rcx, rdx);
|
|
}
|
|
|
|
|
|
void TemplateTable::invokespecial(int byte_no) {
|
|
transition(vtos, vtos);
|
|
prepare_invoke(rbx, noreg, byte_no, bytecode());
|
|
// do the call
|
|
__ verify_oop(rbx);
|
|
__ profile_call(rax);
|
|
__ jump_from_interpreted(rbx, rax);
|
|
}
|
|
|
|
|
|
void TemplateTable::invokestatic(int byte_no) {
|
|
transition(vtos, vtos);
|
|
prepare_invoke(rbx, noreg, byte_no, bytecode());
|
|
// do the call
|
|
__ verify_oop(rbx);
|
|
__ profile_call(rax);
|
|
__ jump_from_interpreted(rbx, rax);
|
|
}
|
|
|
|
void TemplateTable::fast_invokevfinal(int byte_no) {
|
|
transition(vtos, vtos);
|
|
__ stop("fast_invokevfinal not used on amd64");
|
|
}
|
|
|
|
void TemplateTable::invokeinterface(int byte_no) {
|
|
transition(vtos, vtos);
|
|
prepare_invoke(rax, rbx, byte_no, bytecode());
|
|
|
|
// rax: Interface
|
|
// rbx: index
|
|
// rcx: receiver
|
|
// rdx: flags
|
|
|
|
// Special case of invokeinterface called for virtual method of
|
|
// java.lang.Object. See cpCacheOop.cpp for details.
|
|
// This code isn't produced by javac, but could be produced by
|
|
// another compliant java compiler.
|
|
Label notMethod;
|
|
__ movl(r14, rdx);
|
|
__ andl(r14, (1 << ConstantPoolCacheEntry::methodInterface));
|
|
__ jcc(Assembler::zero, notMethod);
|
|
|
|
invokevirtual_helper(rbx, rcx, rdx);
|
|
__ bind(notMethod);
|
|
|
|
// Get receiver klass into rdx - also a null check
|
|
__ restore_locals(); // restore r14
|
|
__ load_klass(rdx, rcx);
|
|
__ verify_oop(rdx);
|
|
|
|
// profile this call
|
|
__ profile_virtual_call(rdx, r13, r14);
|
|
|
|
__ mov(r14, rdx); // Save klassOop in r14
|
|
|
|
// Compute start of first itableOffsetEntry (which is at the end of
|
|
// the vtable)
|
|
const int base = instanceKlass::vtable_start_offset() * wordSize;
|
|
// Get length of vtable
|
|
assert(vtableEntry::size() * wordSize == 8,
|
|
"adjust the scaling in the code below");
|
|
__ movl(r13, Address(rdx,
|
|
instanceKlass::vtable_length_offset() * wordSize));
|
|
__ lea(rdx, Address(rdx, r13, Address::times_8, base));
|
|
|
|
if (HeapWordsPerLong > 1) {
|
|
// Round up to align_object_offset boundary
|
|
__ round_to(rdx, BytesPerLong);
|
|
}
|
|
|
|
Label entry, search, interface_ok;
|
|
|
|
__ jmpb(entry);
|
|
__ bind(search);
|
|
__ addptr(rdx, itableOffsetEntry::size() * wordSize);
|
|
|
|
__ bind(entry);
|
|
|
|
// Check that the entry is non-null. A null entry means that the
|
|
// receiver class doesn't implement the interface, and wasn't the
|
|
// same as the receiver class checked when the interface was
|
|
// resolved.
|
|
__ push(rdx);
|
|
__ movptr(rdx, Address(rdx, itableOffsetEntry::interface_offset_in_bytes()));
|
|
__ testptr(rdx, rdx);
|
|
__ jcc(Assembler::notZero, interface_ok);
|
|
// throw exception
|
|
__ pop(rdx); // pop saved register first.
|
|
__ pop(rbx); // pop return address (pushed by prepare_invoke)
|
|
__ restore_bcp(); // r13 must be correct for exception handler (was
|
|
// destroyed)
|
|
__ restore_locals(); // make sure locals pointer is correct as well
|
|
// (was destroyed)
|
|
__ call_VM(noreg, CAST_FROM_FN_PTR(address,
|
|
InterpreterRuntime::throw_IncompatibleClassChangeError));
|
|
// the call_VM checks for exception, so we should never return here.
|
|
__ should_not_reach_here();
|
|
__ bind(interface_ok);
|
|
|
|
__ pop(rdx);
|
|
|
|
__ cmpptr(rax, Address(rdx, itableOffsetEntry::interface_offset_in_bytes()));
|
|
__ jcc(Assembler::notEqual, search);
|
|
|
|
__ movl(rdx, Address(rdx, itableOffsetEntry::offset_offset_in_bytes()));
|
|
|
|
__ addptr(rdx, r14); // Add offset to klassOop
|
|
assert(itableMethodEntry::size() * wordSize == 8,
|
|
"adjust the scaling in the code below");
|
|
__ movptr(rbx, Address(rdx, rbx, Address::times_8));
|
|
// rbx: methodOop to call
|
|
// rcx: receiver
|
|
// Check for abstract method error
|
|
// Note: This should be done more efficiently via a
|
|
// throw_abstract_method_error interpreter entry point and a
|
|
// conditional jump to it in case of a null method.
|
|
{
|
|
Label L;
|
|
__ testptr(rbx, rbx);
|
|
__ jcc(Assembler::notZero, L);
|
|
// throw exception
|
|
// note: must restore interpreter registers to canonical
|
|
// state for exception handling to work correctly!
|
|
__ pop(rbx); // pop return address (pushed by prepare_invoke)
|
|
__ restore_bcp(); // r13 must be correct for exception handler
|
|
// (was destroyed)
|
|
__ restore_locals(); // make sure locals pointer is correct as
|
|
// well (was destroyed)
|
|
__ call_VM(noreg,
|
|
CAST_FROM_FN_PTR(address,
|
|
InterpreterRuntime::throw_AbstractMethodError));
|
|
// the call_VM checks for exception, so we should never return here.
|
|
__ should_not_reach_here();
|
|
__ bind(L);
|
|
}
|
|
|
|
__ movptr(rcx, Address(rbx, methodOopDesc::interpreter_entry_offset()));
|
|
|
|
// do the call
|
|
// rcx: receiver
|
|
// rbx: methodOop
|
|
__ jump_from_interpreted(rbx, rdx);
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Allocation
|
|
|
|
void TemplateTable::_new() {
|
|
transition(vtos, atos);
|
|
__ get_unsigned_2_byte_index_at_bcp(rdx, 1);
|
|
Label slow_case;
|
|
Label done;
|
|
Label initialize_header;
|
|
Label initialize_object; // including clearing the fields
|
|
Label allocate_shared;
|
|
ExternalAddress top((address)Universe::heap()->top_addr());
|
|
ExternalAddress end((address)Universe::heap()->end_addr());
|
|
|
|
__ get_cpool_and_tags(rsi, rax);
|
|
// get instanceKlass
|
|
__ movptr(rsi, Address(rsi, rdx,
|
|
Address::times_8, sizeof(constantPoolOopDesc)));
|
|
|
|
// make sure the class we're about to instantiate has been
|
|
// resolved. Note: slow_case does a pop of stack, which is why we
|
|
// loaded class/pushed above
|
|
const int tags_offset = typeArrayOopDesc::header_size(T_BYTE) * wordSize;
|
|
__ cmpb(Address(rax, rdx, Address::times_1, tags_offset),
|
|
JVM_CONSTANT_Class);
|
|
__ jcc(Assembler::notEqual, slow_case);
|
|
|
|
// make sure klass is initialized & doesn't have finalizer
|
|
// make sure klass is fully initialized
|
|
__ cmpl(Address(rsi,
|
|
instanceKlass::init_state_offset_in_bytes() +
|
|
sizeof(oopDesc)),
|
|
instanceKlass::fully_initialized);
|
|
__ jcc(Assembler::notEqual, slow_case);
|
|
|
|
// get instance_size in instanceKlass (scaled to a count of bytes)
|
|
__ movl(rdx,
|
|
Address(rsi,
|
|
Klass::layout_helper_offset_in_bytes() + sizeof(oopDesc)));
|
|
// test to see if it has a finalizer or is malformed in some way
|
|
__ testl(rdx, Klass::_lh_instance_slow_path_bit);
|
|
__ jcc(Assembler::notZero, slow_case);
|
|
|
|
// Allocate the instance
|
|
// 1) Try to allocate in the TLAB
|
|
// 2) if fail and the object is large allocate in the shared Eden
|
|
// 3) if the above fails (or is not applicable), go to a slow case
|
|
// (creates a new TLAB, etc.)
|
|
|
|
const bool allow_shared_alloc =
|
|
Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode;
|
|
|
|
if (UseTLAB) {
|
|
__ movptr(rax, Address(r15_thread, in_bytes(JavaThread::tlab_top_offset())));
|
|
__ lea(rbx, Address(rax, rdx, Address::times_1));
|
|
__ cmpptr(rbx, Address(r15_thread, in_bytes(JavaThread::tlab_end_offset())));
|
|
__ jcc(Assembler::above, allow_shared_alloc ? allocate_shared : slow_case);
|
|
__ movptr(Address(r15_thread, in_bytes(JavaThread::tlab_top_offset())), rbx);
|
|
if (ZeroTLAB) {
|
|
// the fields have been already cleared
|
|
__ jmp(initialize_header);
|
|
} else {
|
|
// initialize both the header and fields
|
|
__ jmp(initialize_object);
|
|
}
|
|
}
|
|
|
|
// Allocation in the shared Eden, if allowed.
|
|
//
|
|
// rdx: instance size in bytes
|
|
if (allow_shared_alloc) {
|
|
__ bind(allocate_shared);
|
|
|
|
const Register RtopAddr = rscratch1;
|
|
const Register RendAddr = rscratch2;
|
|
|
|
__ lea(RtopAddr, top);
|
|
__ lea(RendAddr, end);
|
|
__ movptr(rax, Address(RtopAddr, 0));
|
|
|
|
// For retries rax gets set by cmpxchgq
|
|
Label retry;
|
|
__ bind(retry);
|
|
__ lea(rbx, Address(rax, rdx, Address::times_1));
|
|
__ cmpptr(rbx, Address(RendAddr, 0));
|
|
__ jcc(Assembler::above, slow_case);
|
|
|
|
// Compare rax with the top addr, and if still equal, store the new
|
|
// top addr in rbx at the address of the top addr pointer. Sets ZF if was
|
|
// equal, and clears it otherwise. Use lock prefix for atomicity on MPs.
|
|
//
|
|
// rax: object begin
|
|
// rbx: object end
|
|
// rdx: instance size in bytes
|
|
if (os::is_MP()) {
|
|
__ lock();
|
|
}
|
|
__ cmpxchgptr(rbx, Address(RtopAddr, 0));
|
|
|
|
// if someone beat us on the allocation, try again, otherwise continue
|
|
__ jcc(Assembler::notEqual, retry);
|
|
}
|
|
|
|
if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) {
|
|
// The object is initialized before the header. If the object size is
|
|
// zero, go directly to the header initialization.
|
|
__ bind(initialize_object);
|
|
__ decrementl(rdx, sizeof(oopDesc));
|
|
__ jcc(Assembler::zero, initialize_header);
|
|
|
|
// Initialize object fields
|
|
__ xorl(rcx, rcx); // use zero reg to clear memory (shorter code)
|
|
__ shrl(rdx, LogBytesPerLong); // divide by oopSize to simplify the loop
|
|
{
|
|
Label loop;
|
|
__ bind(loop);
|
|
__ movq(Address(rax, rdx, Address::times_8,
|
|
sizeof(oopDesc) - oopSize),
|
|
rcx);
|
|
__ decrementl(rdx);
|
|
__ jcc(Assembler::notZero, loop);
|
|
}
|
|
|
|
// initialize object header only.
|
|
__ bind(initialize_header);
|
|
if (UseBiasedLocking) {
|
|
__ movptr(rscratch1, Address(rsi, Klass::prototype_header_offset_in_bytes() + klassOopDesc::klass_part_offset_in_bytes()));
|
|
__ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), rscratch1);
|
|
} else {
|
|
__ movptr(Address(rax, oopDesc::mark_offset_in_bytes()),
|
|
(intptr_t) markOopDesc::prototype()); // header (address 0x1)
|
|
}
|
|
__ xorl(rcx, rcx); // use zero reg to clear memory (shorter code)
|
|
__ store_klass_gap(rax, rcx); // zero klass gap for compressed oops
|
|
__ store_klass(rax, rsi); // store klass last
|
|
__ jmp(done);
|
|
}
|
|
|
|
{
|
|
SkipIfEqual skip(_masm, &DTraceAllocProbes, false);
|
|
// Trigger dtrace event for fastpath
|
|
__ push(atos); // save the return value
|
|
__ call_VM_leaf(
|
|
CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), rax);
|
|
__ pop(atos); // restore the return value
|
|
}
|
|
|
|
// slow case
|
|
__ bind(slow_case);
|
|
__ get_constant_pool(c_rarg1);
|
|
__ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1);
|
|
call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), c_rarg1, c_rarg2);
|
|
__ verify_oop(rax);
|
|
|
|
// continue
|
|
__ bind(done);
|
|
}
|
|
|
|
void TemplateTable::newarray() {
|
|
transition(itos, atos);
|
|
__ load_unsigned_byte(c_rarg1, at_bcp(1));
|
|
__ movl(c_rarg2, rax);
|
|
call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray),
|
|
c_rarg1, c_rarg2);
|
|
}
|
|
|
|
void TemplateTable::anewarray() {
|
|
transition(itos, atos);
|
|
__ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1);
|
|
__ get_constant_pool(c_rarg1);
|
|
__ movl(c_rarg3, rax);
|
|
call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray),
|
|
c_rarg1, c_rarg2, c_rarg3);
|
|
}
|
|
|
|
void TemplateTable::arraylength() {
|
|
transition(atos, itos);
|
|
__ null_check(rax, arrayOopDesc::length_offset_in_bytes());
|
|
__ movl(rax, Address(rax, arrayOopDesc::length_offset_in_bytes()));
|
|
}
|
|
|
|
void TemplateTable::checkcast() {
|
|
transition(atos, atos);
|
|
Label done, is_null, ok_is_subtype, quicked, resolved;
|
|
__ testptr(rax, rax); // object is in rax
|
|
__ jcc(Assembler::zero, is_null);
|
|
|
|
// Get cpool & tags index
|
|
__ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array
|
|
__ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index
|
|
// See if bytecode has already been quicked
|
|
__ cmpb(Address(rdx, rbx,
|
|
Address::times_1,
|
|
typeArrayOopDesc::header_size(T_BYTE) * wordSize),
|
|
JVM_CONSTANT_Class);
|
|
__ jcc(Assembler::equal, quicked);
|
|
__ push(atos); // save receiver for result, and for GC
|
|
__ mov(r12, rcx); // save rcx XXX
|
|
call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc));
|
|
__ movq(rcx, r12); // restore rcx XXX
|
|
__ reinit_heapbase();
|
|
__ pop_ptr(rdx); // restore receiver
|
|
__ jmpb(resolved);
|
|
|
|
// Get superklass in rax and subklass in rbx
|
|
__ bind(quicked);
|
|
__ mov(rdx, rax); // Save object in rdx; rax needed for subtype check
|
|
__ movptr(rax, Address(rcx, rbx,
|
|
Address::times_8, sizeof(constantPoolOopDesc)));
|
|
|
|
__ bind(resolved);
|
|
__ load_klass(rbx, rdx);
|
|
|
|
// Generate subtype check. Blows rcx, rdi. Object in rdx.
|
|
// Superklass in rax. Subklass in rbx.
|
|
__ gen_subtype_check(rbx, ok_is_subtype);
|
|
|
|
// Come here on failure
|
|
__ push_ptr(rdx);
|
|
// object is at TOS
|
|
__ jump(ExternalAddress(Interpreter::_throw_ClassCastException_entry));
|
|
|
|
// Come here on success
|
|
__ bind(ok_is_subtype);
|
|
__ mov(rax, rdx); // Restore object in rdx
|
|
|
|
// Collect counts on whether this check-cast sees NULLs a lot or not.
|
|
if (ProfileInterpreter) {
|
|
__ jmp(done);
|
|
__ bind(is_null);
|
|
__ profile_null_seen(rcx);
|
|
} else {
|
|
__ bind(is_null); // same as 'done'
|
|
}
|
|
__ bind(done);
|
|
}
|
|
|
|
void TemplateTable::instanceof() {
|
|
transition(atos, itos);
|
|
Label done, is_null, ok_is_subtype, quicked, resolved;
|
|
__ testptr(rax, rax);
|
|
__ jcc(Assembler::zero, is_null);
|
|
|
|
// Get cpool & tags index
|
|
__ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array
|
|
__ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index
|
|
// See if bytecode has already been quicked
|
|
__ cmpb(Address(rdx, rbx,
|
|
Address::times_1,
|
|
typeArrayOopDesc::header_size(T_BYTE) * wordSize),
|
|
JVM_CONSTANT_Class);
|
|
__ jcc(Assembler::equal, quicked);
|
|
|
|
__ push(atos); // save receiver for result, and for GC
|
|
__ mov(r12, rcx); // save rcx
|
|
call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc));
|
|
__ movq(rcx, r12); // restore rcx
|
|
__ reinit_heapbase();
|
|
__ pop_ptr(rdx); // restore receiver
|
|
__ load_klass(rdx, rdx);
|
|
__ jmpb(resolved);
|
|
|
|
// Get superklass in rax and subklass in rdx
|
|
__ bind(quicked);
|
|
__ load_klass(rdx, rax);
|
|
__ movptr(rax, Address(rcx, rbx,
|
|
Address::times_8, sizeof(constantPoolOopDesc)));
|
|
|
|
__ bind(resolved);
|
|
|
|
// Generate subtype check. Blows rcx, rdi
|
|
// Superklass in rax. Subklass in rdx.
|
|
__ gen_subtype_check(rdx, ok_is_subtype);
|
|
|
|
// Come here on failure
|
|
__ xorl(rax, rax);
|
|
__ jmpb(done);
|
|
// Come here on success
|
|
__ bind(ok_is_subtype);
|
|
__ movl(rax, 1);
|
|
|
|
// Collect counts on whether this test sees NULLs a lot or not.
|
|
if (ProfileInterpreter) {
|
|
__ jmp(done);
|
|
__ bind(is_null);
|
|
__ profile_null_seen(rcx);
|
|
} else {
|
|
__ bind(is_null); // same as 'done'
|
|
}
|
|
__ bind(done);
|
|
// rax = 0: obj == NULL or obj is not an instanceof the specified klass
|
|
// rax = 1: obj != NULL and obj is an instanceof the specified klass
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Breakpoints
|
|
void TemplateTable::_breakpoint() {
|
|
// Note: We get here even if we are single stepping..
|
|
// jbug inists on setting breakpoints at every bytecode
|
|
// even if we are in single step mode.
|
|
|
|
transition(vtos, vtos);
|
|
|
|
// get the unpatched byte code
|
|
__ get_method(c_rarg1);
|
|
__ call_VM(noreg,
|
|
CAST_FROM_FN_PTR(address,
|
|
InterpreterRuntime::get_original_bytecode_at),
|
|
c_rarg1, r13);
|
|
__ mov(rbx, rax);
|
|
|
|
// post the breakpoint event
|
|
__ get_method(c_rarg1);
|
|
__ call_VM(noreg,
|
|
CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint),
|
|
c_rarg1, r13);
|
|
|
|
// complete the execution of original bytecode
|
|
__ dispatch_only_normal(vtos);
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Exceptions
|
|
|
|
void TemplateTable::athrow() {
|
|
transition(atos, vtos);
|
|
__ null_check(rax);
|
|
__ jump(ExternalAddress(Interpreter::throw_exception_entry()));
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Synchronization
|
|
//
|
|
// Note: monitorenter & exit are symmetric routines; which is reflected
|
|
// in the assembly code structure as well
|
|
//
|
|
// Stack layout:
|
|
//
|
|
// [expressions ] <--- rsp = expression stack top
|
|
// ..
|
|
// [expressions ]
|
|
// [monitor entry] <--- monitor block top = expression stack bot
|
|
// ..
|
|
// [monitor entry]
|
|
// [frame data ] <--- monitor block bot
|
|
// ...
|
|
// [saved rbp ] <--- rbp
|
|
void TemplateTable::monitorenter() {
|
|
transition(atos, vtos);
|
|
|
|
// check for NULL object
|
|
__ null_check(rax);
|
|
|
|
const Address monitor_block_top(
|
|
rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize);
|
|
const Address monitor_block_bot(
|
|
rbp, frame::interpreter_frame_initial_sp_offset * wordSize);
|
|
const int entry_size = frame::interpreter_frame_monitor_size() * wordSize;
|
|
|
|
Label allocated;
|
|
|
|
// initialize entry pointer
|
|
__ xorl(c_rarg1, c_rarg1); // points to free slot or NULL
|
|
|
|
// find a free slot in the monitor block (result in c_rarg1)
|
|
{
|
|
Label entry, loop, exit;
|
|
__ movptr(c_rarg3, monitor_block_top); // points to current entry,
|
|
// starting with top-most entry
|
|
__ lea(c_rarg2, monitor_block_bot); // points to word before bottom
|
|
// of monitor block
|
|
__ jmpb(entry);
|
|
|
|
__ bind(loop);
|
|
// check if current entry is used
|
|
__ cmpptr(Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes()), (int32_t) NULL_WORD);
|
|
// if not used then remember entry in c_rarg1
|
|
__ cmov(Assembler::equal, c_rarg1, c_rarg3);
|
|
// check if current entry is for same object
|
|
__ cmpptr(rax, Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes()));
|
|
// if same object then stop searching
|
|
__ jccb(Assembler::equal, exit);
|
|
// otherwise advance to next entry
|
|
__ addptr(c_rarg3, entry_size);
|
|
__ bind(entry);
|
|
// check if bottom reached
|
|
__ cmpptr(c_rarg3, c_rarg2);
|
|
// if not at bottom then check this entry
|
|
__ jcc(Assembler::notEqual, loop);
|
|
__ bind(exit);
|
|
}
|
|
|
|
__ testptr(c_rarg1, c_rarg1); // check if a slot has been found
|
|
__ jcc(Assembler::notZero, allocated); // if found, continue with that one
|
|
|
|
// allocate one if there's no free slot
|
|
{
|
|
Label entry, loop;
|
|
// 1. compute new pointers // rsp: old expression stack top
|
|
__ movptr(c_rarg1, monitor_block_bot); // c_rarg1: old expression stack bottom
|
|
__ subptr(rsp, entry_size); // move expression stack top
|
|
__ subptr(c_rarg1, entry_size); // move expression stack bottom
|
|
__ mov(c_rarg3, rsp); // set start value for copy loop
|
|
__ movptr(monitor_block_bot, c_rarg1); // set new monitor block bottom
|
|
__ jmp(entry);
|
|
// 2. move expression stack contents
|
|
__ bind(loop);
|
|
__ movptr(c_rarg2, Address(c_rarg3, entry_size)); // load expression stack
|
|
// word from old location
|
|
__ movptr(Address(c_rarg3, 0), c_rarg2); // and store it at new location
|
|
__ addptr(c_rarg3, wordSize); // advance to next word
|
|
__ bind(entry);
|
|
__ cmpptr(c_rarg3, c_rarg1); // check if bottom reached
|
|
__ jcc(Assembler::notEqual, loop); // if not at bottom then
|
|
// copy next word
|
|
}
|
|
|
|
// call run-time routine
|
|
// c_rarg1: points to monitor entry
|
|
__ bind(allocated);
|
|
|
|
// Increment bcp to point to the next bytecode, so exception
|
|
// handling for async. exceptions work correctly.
|
|
// The object has already been poped from the stack, so the
|
|
// expression stack looks correct.
|
|
__ increment(r13);
|
|
|
|
// store object
|
|
__ movptr(Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes()), rax);
|
|
__ lock_object(c_rarg1);
|
|
|
|
// check to make sure this monitor doesn't cause stack overflow after locking
|
|
__ save_bcp(); // in case of exception
|
|
__ generate_stack_overflow_check(0);
|
|
|
|
// The bcp has already been incremented. Just need to dispatch to
|
|
// next instruction.
|
|
__ dispatch_next(vtos);
|
|
}
|
|
|
|
|
|
void TemplateTable::monitorexit() {
|
|
transition(atos, vtos);
|
|
|
|
// check for NULL object
|
|
__ null_check(rax);
|
|
|
|
const Address monitor_block_top(
|
|
rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize);
|
|
const Address monitor_block_bot(
|
|
rbp, frame::interpreter_frame_initial_sp_offset * wordSize);
|
|
const int entry_size = frame::interpreter_frame_monitor_size() * wordSize;
|
|
|
|
Label found;
|
|
|
|
// find matching slot
|
|
{
|
|
Label entry, loop;
|
|
__ movptr(c_rarg1, monitor_block_top); // points to current entry,
|
|
// starting with top-most entry
|
|
__ lea(c_rarg2, monitor_block_bot); // points to word before bottom
|
|
// of monitor block
|
|
__ jmpb(entry);
|
|
|
|
__ bind(loop);
|
|
// check if current entry is for same object
|
|
__ cmpptr(rax, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes()));
|
|
// if same object then stop searching
|
|
__ jcc(Assembler::equal, found);
|
|
// otherwise advance to next entry
|
|
__ addptr(c_rarg1, entry_size);
|
|
__ bind(entry);
|
|
// check if bottom reached
|
|
__ cmpptr(c_rarg1, c_rarg2);
|
|
// if not at bottom then check this entry
|
|
__ jcc(Assembler::notEqual, loop);
|
|
}
|
|
|
|
// error handling. Unlocking was not block-structured
|
|
__ call_VM(noreg, CAST_FROM_FN_PTR(address,
|
|
InterpreterRuntime::throw_illegal_monitor_state_exception));
|
|
__ should_not_reach_here();
|
|
|
|
// call run-time routine
|
|
// rsi: points to monitor entry
|
|
__ bind(found);
|
|
__ push_ptr(rax); // make sure object is on stack (contract with oopMaps)
|
|
__ unlock_object(c_rarg1);
|
|
__ pop_ptr(rax); // discard object
|
|
}
|
|
|
|
|
|
// Wide instructions
|
|
void TemplateTable::wide() {
|
|
transition(vtos, vtos);
|
|
__ load_unsigned_byte(rbx, at_bcp(1));
|
|
__ lea(rscratch1, ExternalAddress((address)Interpreter::_wentry_point));
|
|
__ jmp(Address(rscratch1, rbx, Address::times_8));
|
|
// Note: the r13 increment step is part of the individual wide
|
|
// bytecode implementations
|
|
}
|
|
|
|
|
|
// Multi arrays
|
|
void TemplateTable::multianewarray() {
|
|
transition(vtos, atos);
|
|
__ load_unsigned_byte(rax, at_bcp(3)); // get number of dimensions
|
|
// last dim is on top of stack; we want address of first one:
|
|
// first_addr = last_addr + (ndims - 1) * wordSize
|
|
if (TaggedStackInterpreter) __ shll(rax, 1); // index*2
|
|
__ lea(c_rarg1, Address(rsp, rax, Address::times_8, -wordSize));
|
|
call_VM(rax,
|
|
CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray),
|
|
c_rarg1);
|
|
__ load_unsigned_byte(rbx, at_bcp(3));
|
|
if (TaggedStackInterpreter) __ shll(rbx, 1); // index*2
|
|
__ lea(rsp, Address(rsp, rbx, Address::times_8));
|
|
}
|
|
#endif // !CC_INTERP
|