Mercurial > hg > truffle
view graal/com.oracle.max.asmdis/src/com/sun/max/asm/gen/Assembly.java @ 4213:e4cfa571d8c4
Do not emit stack-to-stack moves.
author | Christian Wimmer <Christian.Wimmer@Oracle.com> |
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date | Tue, 03 Jan 2012 18:47:27 -0800 |
parents | bc8527f3071c |
children |
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/* * Copyright (c) 2007, 2011, 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.sun.max.asm.gen; import java.lang.reflect.*; import java.util.*; import com.sun.max.asm.*; import com.sun.max.asm.gen.risc.bitRange.*; import com.sun.max.lang.*; import com.sun.max.program.*; /** * An assembly framework, instantiated once per instruction set. */ public abstract class Assembly<Template_Type extends Template> { private final ISA isa; private final Class<Template_Type> templateType; protected Assembly(ISA isa, Class<Template_Type> templateType) { this.isa = isa; this.templateType = templateType; } public ISA isa() { return isa; } public Class<Template_Type> templateType() { return templateType; } protected abstract List<Template_Type> createTemplates(); private List<Template_Type> templates; private List<Template_Type> labelTemplates; public final List<Template_Type> templates() { if (templates == null) { templates = createTemplates(); } return templates; } public final List<Template_Type> labelTemplates() { if (labelTemplates == null) { labelTemplates = new LinkedList<>(); for (Template_Type template : templates()) { if (!template.isRedundant() && template.labelParameterIndex() >= 0) { labelTemplates.add(template); } } } return labelTemplates; } public abstract BitRangeOrder bitRangeEndianness(); private static Object getBoxedJavaValue(Argument argument) { if (argument instanceof ImmediateArgument) { final ImmediateArgument immediateArgument = (ImmediateArgument) argument; return immediateArgument.boxedJavaValue(); } return argument; } public static final String createMethodCallString(Template template, List<Argument> argumentList) { assert argumentList.size() == template.parameters().size(); String call = template.assemblerMethodName() + "("; for (int i = 0; i < argumentList.size(); i++) { call += ((i == 0) ? "" : ", ") + getBoxedJavaValue(argumentList.get(i)); } return call + ")"; } private static Method getAssemblerMethod(Assembler assembler, Template template, Class[] parameterTypes) throws NoSuchAssemblerMethodError { try { return assembler.getClass().getMethod(template.assemblerMethodName(), parameterTypes); } catch (NoSuchMethodException e) { throw new NoSuchAssemblerMethodError(e.getMessage(), template); } } private static Method getAssemblerMethod(Assembler assembler, Template template, List<Argument> arguments) throws NoSuchAssemblerMethodError { final Class[] parameterTypes = template.parameterTypes(); final int index = template.labelParameterIndex(); if (index >= 0 && arguments.get(index) instanceof Label) { parameterTypes[index] = Label.class; return getAssemblerMethod(assembler, template, parameterTypes); } if (template.assemblerMethod == null) { template.assemblerMethod = getAssemblerMethod(assembler, template, parameterTypes); } return template.assemblerMethod; } public void assemble(Assembler assembler, Template template, List<Argument> arguments) throws AssemblyException, NoSuchAssemblerMethodError { assert arguments.size() == template.parameters().size(); final Method assemblerMethod = getAssemblerMethod(assembler, template, arguments); final Object[] objects = new Object[arguments.size()]; for (int i = 0; i < arguments.size(); i++) { objects[i] = getBoxedJavaValue(arguments.get(i)); } try { assemblerMethod.invoke(assembler, objects); } catch (IllegalArgumentException illegalArgumentException) { throw ProgramError.unexpected("argument type mismatch", illegalArgumentException); } catch (IllegalAccessException illegalAccessException) { throw ProgramError.unexpected("illegal access to assembler method unexpected", illegalAccessException); } catch (InvocationTargetException invocationTargetException) { final Throwable target = invocationTargetException.getTargetException(); if (target instanceof AssemblyException) { throw (AssemblyException) target; } if (target instanceof IllegalArgumentException) { throw (AssemblyException) new AssemblyException(target.getMessage()).initCause(target); } throw ProgramError.unexpected(invocationTargetException); } } }