Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.lir.sparc/src/com/oracle/graal/lir/sparc/SPARCCompare.java @ 21543:93c50cefb9e8
moved GraalInternalError to com.oracle.jvmci.common and renamed it to JVMCIError (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Mon, 25 May 2015 23:30:34 +0200 |
parents | fb2b27418347 |
children | 48c1ebd24120 |
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/* * Copyright (c) 2013, 2014, 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.sparc; import static com.oracle.graal.api.code.ValueUtil.*; import static com.oracle.graal.asm.sparc.SPARCAssembler.*; import static com.oracle.graal.asm.sparc.SPARCAssembler.CC.*; import static com.oracle.graal.asm.sparc.SPARCAssembler.Opfs.*; import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.asm.sparc.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.asm.*; import com.oracle.graal.lir.sparc.SPARCControlFlow.CompareBranchOp; import com.oracle.jvmci.common.*; public enum SPARCCompare { ICMP, LCMP, ACMP, FCMP, DCMP; public static final class CompareOp extends SPARCLIRInstruction { public static final LIRInstructionClass<CompareOp> TYPE = LIRInstructionClass.create(CompareOp.class); @Opcode private final SPARCCompare opcode; @Use({REG}) protected Value x; @Use({REG, CONST}) protected Value y; public CompareOp(SPARCCompare opcode, Value x, Value y) { super(TYPE); this.opcode = opcode; this.x = x; this.y = y; } @Override public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { emit(crb, masm, opcode, x, y); } @Override public void verify() { super.verify(); assert CompareBranchOp.SUPPORTED_KINDS.contains(x.getKind()) : x.getKind(); assert x.getKind().equals(y.getKind()) : x + " " + y; // @formatter:off assert (name().startsWith("I") && x.getKind() == Kind.Int && y.getKind().getStackKind() == Kind.Int) || (name().startsWith("L") && x.getKind() == Kind.Long && y.getKind() == Kind.Long) || (name().startsWith("A") && x.getKind() == Kind.Object && y.getKind() == Kind.Object) || (name().startsWith("F") && x.getKind() == Kind.Float && y.getKind() == Kind.Float) || (name().startsWith("D") && x.getKind() == Kind.Double && y.getKind() == Kind.Double) : "Name; " + name() + " x: " + x + " y: " + y; // @formatter:on } } public static void emit(CompilationResultBuilder crb, SPARCMacroAssembler masm, SPARCCompare opcode, Value x, Value y) { if (isRegister(y)) { switch (opcode) { case ICMP: masm.cmp(asIntReg(x), asIntReg(y)); break; case LCMP: masm.cmp(asLongReg(x), asLongReg(y)); break; case ACMP: masm.cmp(asObjectReg(x), asObjectReg(y)); break; case FCMP: masm.fcmp(Fcc0, Fcmps, asFloatReg(x), asFloatReg(y)); break; case DCMP: masm.fcmp(Fcc0, Fcmpd, asDoubleReg(x), asDoubleReg(y)); break; default: throw JVMCIError.shouldNotReachHere(); } } else { assert isConstant(y); switch (opcode) { case LCMP: assert isSimm13(crb.asLongConst(y)); masm.cmp(asLongReg(x), (int) crb.asLongConst(y)); break; case ICMP: assert isSimm13(crb.asIntConst(y)); masm.cmp(asIntReg(x), crb.asIntConst(y)); break; case ACMP: if (((JavaConstant) y).isNull()) { masm.cmp(asObjectReg(x), 0); break; } else { throw JVMCIError.shouldNotReachHere("Only null object constants are allowed in comparisons"); } case FCMP: masm.fcmp(Fcc0, Fcmps, asFloatReg(x), asFloatReg(y)); break; case DCMP: masm.fcmp(Fcc0, Fcmpd, asDoubleReg(x), asDoubleReg(y)); break; default: throw JVMCIError.shouldNotReachHere(); } } } }