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view graal/com.oracle.graal.lir.sparc/src/com/oracle/graal/lir/sparc/SPARCCompare.java @ 9843:e05af215586b
SPARC compare
author | Morris Meyer <morris.meyer@oracle.com> |
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date | Thu, 30 May 2013 22:56:22 -0400 |
parents | 705aca4ebf2f |
children | 2d1687e63484 |
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/* * Copyright (c) 2013, 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.isSimm13; import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.asm.sparc.SPARCAssembler; import com.oracle.graal.asm.sparc.SPARCAssembler.Cmp; import com.oracle.graal.graph.*; import com.oracle.graal.lir.asm.*; //@formatter:off public enum SPARCCompare { ICMP, LCMP, ACMP, FCMP, DCMP; public static class CompareOp extends SPARCLIRInstruction { @Opcode private final SPARCCompare opcode; @Use({REG, STACK, CONST}) protected Value x; @Use({REG, STACK, CONST}) protected Value y; public CompareOp(SPARCCompare opcode, Value x, Value y) { this.opcode = opcode; this.x = x; this.y = y; } @Override public void emitCode(TargetMethodAssembler tasm, SPARCAssembler masm) { emit(tasm, masm, opcode, x, y); } @Override protected void verify() { super.verify(); 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); } } @SuppressWarnings("unused") public static void emit(TargetMethodAssembler tasm, SPARCAssembler masm, SPARCCompare opcode, Value x, Value y) { if (isRegister(y)) { switch (opcode) { case ICMP: new Cmp(masm, asIntReg(x), asIntReg(y)); break; case LCMP: new Cmp(masm, asLongReg(x), asLongReg(y)); break; case ACMP: // masm.cmpptr(asObjectReg(x), asObjectReg(y)); break; case FCMP: // masm.ucomiss(asFloatReg(x), asFloatReg(y)); break; case DCMP: // masm.ucomisd(asDoubleReg(x), asDoubleReg(y)); break; default: throw GraalInternalError.shouldNotReachHere(); } } else if (isConstant(y)) { switch (opcode) { case ICMP: assert isSimm13(tasm.asIntConst(y)); new Cmp(masm, asIntReg(x), tasm.asIntConst(y)); break; case LCMP: assert isSimm13(tasm.asIntConst(y)); new Cmp(masm, asLongReg(x), tasm.asIntConst(y)); break; case ACMP: if (((Constant) y).isNull()) { // masm.cmpq(asObjectReg(x), 0); break; } else { throw GraalInternalError.shouldNotReachHere("Only null object constants are allowed in comparisons"); } case FCMP: // masm.ucomiss(asFloatReg(x), (AMD64Address) tasm.asFloatConstRef(y)); break; case DCMP: // masm.ucomisd(asDoubleReg(x), (AMD64Address) tasm.asDoubleConstRef(y)); break; default: throw GraalInternalError.shouldNotReachHere(); } } else { switch (opcode) { case ICMP: // masm.cmpl(asIntReg(x), (AMD64Address) tasm.asIntAddr(y)); break; case LCMP: // masm.cmpq(asLongReg(x), (AMD64Address) tasm.asLongAddr(y)); break; case ACMP: // masm.cmpptr(asObjectReg(x), (AMD64Address) tasm.asObjectAddr(y)); break; case FCMP: // masm.ucomiss(asFloatReg(x), (AMD64Address) tasm.asFloatAddr(y)); break; case DCMP: // masm.ucomisd(asDoubleReg(x), (AMD64Address) tasm.asDoubleAddr(y)); break; default: throw GraalInternalError.shouldNotReachHere(); } } } }