Mercurial > hg > graal-compiler
view graal/com.oracle.graal.lir.sparc/src/com/oracle/graal/lir/sparc/SPARCBitManipulationOp.java @ 22604:b00cc0475f31
Update jvmci import: Refactoring: Rename Kind to JavaKind.
author | Roland Schatz <roland.schatz@oracle.com> |
---|---|
date | Tue, 08 Sep 2015 19:57:39 +0200 |
parents | dcfd57b9f2d3 |
children | 05183a084a08 |
line wrap: on
line source
/* * Copyright (c) 2012, 2015, 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.asm.sparc.SPARCAssembler.*; import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*; import static com.oracle.graal.lir.LIRValueUtil.*; import static jdk.internal.jvmci.code.ValueUtil.*; import static jdk.internal.jvmci.sparc.SPARC.*; import jdk.internal.jvmci.code.*; import jdk.internal.jvmci.common.*; import jdk.internal.jvmci.meta.*; import com.oracle.graal.asm.sparc.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.asm.*; import com.oracle.graal.lir.gen.*; public final class SPARCBitManipulationOp extends SPARCLIRInstruction { public static final LIRInstructionClass<SPARCBitManipulationOp> TYPE = LIRInstructionClass.create(SPARCBitManipulationOp.class); public enum IntrinsicOpcode { IPOPCNT(SizeEstimate.create(2)), LPOPCNT(SizeEstimate.create(1)), IBSR(SizeEstimate.create(13)), LBSR(SizeEstimate.create(14)), BSF(SizeEstimate.create(4)); final SizeEstimate size; private IntrinsicOpcode(SizeEstimate size) { this.size = size; } } @Opcode private final IntrinsicOpcode opcode; @Def protected AllocatableValue result; @Alive({REG}) protected AllocatableValue input; @Temp({REG}) protected Value scratch; public SPARCBitManipulationOp(IntrinsicOpcode opcode, AllocatableValue result, AllocatableValue input, LIRGeneratorTool gen) { super(TYPE, opcode.size); this.opcode = opcode; this.result = result; this.input = input; scratch = gen.newVariable(LIRKind.combine(input)); } @Override public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { Register dst = asRegister(result, JavaKind.Int); if (isRegister(input)) { Register src = asRegister(input); switch (opcode) { case IPOPCNT: // clear upper word for 64 bit POPC masm.srl(src, g0, dst); masm.popc(dst, dst); break; case LPOPCNT: masm.popc(src, dst); break; case BSF: PlatformKind tkind = input.getPlatformKind(); if (tkind == JavaKind.Int) { masm.sub(src, 1, dst); masm.andn(dst, src, dst); masm.srl(dst, g0, dst); masm.popc(dst, dst); } else if (tkind == JavaKind.Long) { masm.sub(src, 1, dst); masm.andn(dst, src, dst); masm.popc(dst, dst); } else { throw JVMCIError.shouldNotReachHere("missing: " + tkind); } break; case IBSR: { PlatformKind ikind = input.getPlatformKind(); assert ikind == JavaKind.Int; Register tmp = asRegister(scratch); assert !tmp.equals(dst); masm.srl(src, 1, tmp); masm.srl(src, 0, dst); masm.or(dst, tmp, dst); masm.srl(dst, 2, tmp); masm.or(dst, tmp, dst); masm.srl(dst, 4, tmp); masm.or(dst, tmp, dst); masm.srl(dst, 8, tmp); masm.or(dst, tmp, dst); masm.srl(dst, 16, tmp); masm.or(dst, tmp, dst); masm.popc(dst, dst); masm.sub(dst, 1, dst); break; } case LBSR: { PlatformKind lkind = input.getPlatformKind(); assert lkind == JavaKind.Long; Register tmp = asRegister(scratch); assert !tmp.equals(dst); masm.srlx(src, 1, tmp); masm.or(src, tmp, dst); masm.srlx(dst, 2, tmp); masm.or(dst, tmp, dst); masm.srlx(dst, 4, tmp); masm.or(dst, tmp, dst); masm.srlx(dst, 8, tmp); masm.or(dst, tmp, dst); masm.srlx(dst, 16, tmp); masm.or(dst, tmp, dst); masm.srlx(dst, 32, tmp); masm.or(dst, tmp, dst); masm.popc(dst, dst); masm.sub(dst, 1, dst); // This is required to fit the given structure. break; } default: throw JVMCIError.shouldNotReachHere(); } } else if (isJavaConstant(input) && isSimm13(crb.asIntConst(input))) { switch (opcode) { case IPOPCNT: masm.popc(crb.asIntConst(input), dst); break; case LPOPCNT: masm.popc(crb.asIntConst(input), dst); break; default: throw JVMCIError.shouldNotReachHere(); } } else { throw JVMCIError.shouldNotReachHere(); } } }