Mercurial > hg > graal-compiler
view graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64TestMemoryOp.java @ 14707:6ce6c4ccba8f
initial support for memory arithmetic on x86
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Thu, 20 Mar 2014 15:57:03 -0700 |
parents | |
children | d45e8c306349 |
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/* * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.lir.amd64; import static com.oracle.graal.api.code.ValueUtil.*; import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.asm.amd64.*; import com.oracle.graal.graph.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.asm.*; public class AMD64TestMemoryOp extends AMD64LIRInstruction { @Use({COMPOSITE}) protected AMD64AddressValue x; @Use({REG, CONST}) protected Value y; @State protected LIRFrameState state; public AMD64TestMemoryOp(AMD64AddressValue x, Value y, LIRFrameState state) { this.x = x; this.y = y; this.state = state; } @Override public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { if (state != null) { crb.recordImplicitException(masm.position(), state); } emit(crb, masm, x, y); } @Override protected void verify() { super.verify(); // Can't check the kind of an address so just check the other input assert (x.getKind() == Kind.Int || x.getKind() == Kind.Long) : x + " " + y; } public static void emit(CompilationResultBuilder crb, AMD64MacroAssembler masm, Value x, Value y) { if (isRegister(y)) { switch (y.getKind()) { case Int: masm.testl(asIntReg(y), ((AMD64AddressValue) x).toAddress()); break; case Long: masm.testq(asLongReg(y), ((AMD64AddressValue) x).toAddress()); break; default: throw GraalInternalError.shouldNotReachHere(); } } else if (isConstant(y)) { switch (y.getKind()) { case Int: masm.testl(((AMD64AddressValue) x).toAddress(), crb.asIntConst(y)); break; case Long: masm.testq(((AMD64AddressValue) x).toAddress(), crb.asIntConst(y)); break; default: throw GraalInternalError.shouldNotReachHere(); } } else { throw GraalInternalError.shouldNotReachHere(); } } }