Tue, 09 Mar 2010 20:16:19 +0100
6919934: JSR 292 needs to support x86 C1
Summary: This implements JSR 292 support for C1 x86.
Reviewed-by: never, jrose, kvn
duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 1999-2005 Sun Microsystems, Inc. All Rights Reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | # include "incls/_precompiled.incl" |
duke@435 | 26 | # include "incls/_c1_ValueType.cpp.incl" |
duke@435 | 27 | |
duke@435 | 28 | |
duke@435 | 29 | // predefined types |
duke@435 | 30 | VoidType* voidType = NULL; |
duke@435 | 31 | IntType* intType = NULL; |
duke@435 | 32 | LongType* longType = NULL; |
duke@435 | 33 | FloatType* floatType = NULL; |
duke@435 | 34 | DoubleType* doubleType = NULL; |
duke@435 | 35 | ObjectType* objectType = NULL; |
duke@435 | 36 | ArrayType* arrayType = NULL; |
duke@435 | 37 | InstanceType* instanceType = NULL; |
duke@435 | 38 | ClassType* classType = NULL; |
duke@435 | 39 | AddressType* addressType = NULL; |
duke@435 | 40 | IllegalType* illegalType = NULL; |
duke@435 | 41 | |
duke@435 | 42 | |
duke@435 | 43 | // predefined constants |
duke@435 | 44 | IntConstant* intZero = NULL; |
duke@435 | 45 | IntConstant* intOne = NULL; |
duke@435 | 46 | ObjectConstant* objectNull = NULL; |
duke@435 | 47 | |
duke@435 | 48 | |
duke@435 | 49 | void ValueType::initialize() { |
duke@435 | 50 | // Note: Must initialize all types for each compilation |
duke@435 | 51 | // as they are allocated within a ResourceMark! |
duke@435 | 52 | |
duke@435 | 53 | // types |
duke@435 | 54 | voidType = new VoidType(); |
duke@435 | 55 | intType = new IntType(); |
duke@435 | 56 | longType = new LongType(); |
duke@435 | 57 | floatType = new FloatType(); |
duke@435 | 58 | doubleType = new DoubleType(); |
duke@435 | 59 | objectType = new ObjectType(); |
duke@435 | 60 | arrayType = new ArrayType(); |
duke@435 | 61 | instanceType = new InstanceType(); |
duke@435 | 62 | classType = new ClassType(); |
duke@435 | 63 | addressType = new AddressType(); |
duke@435 | 64 | illegalType = new IllegalType(); |
duke@435 | 65 | |
duke@435 | 66 | // constants |
duke@435 | 67 | intZero = new IntConstant(0); |
duke@435 | 68 | intOne = new IntConstant(1); |
duke@435 | 69 | objectNull = new ObjectConstant(ciNullObject::make()); |
duke@435 | 70 | }; |
duke@435 | 71 | |
duke@435 | 72 | |
duke@435 | 73 | ValueType* ValueType::meet(ValueType* y) const { |
duke@435 | 74 | // incomplete & conservative solution for now - fix this! |
duke@435 | 75 | assert(tag() == y->tag(), "types must match"); |
duke@435 | 76 | return base(); |
duke@435 | 77 | } |
duke@435 | 78 | |
duke@435 | 79 | |
duke@435 | 80 | ValueType* ValueType::join(ValueType* y) const { |
duke@435 | 81 | Unimplemented(); |
duke@435 | 82 | return NULL; |
duke@435 | 83 | } |
duke@435 | 84 | |
duke@435 | 85 | |
duke@435 | 86 | |
duke@435 | 87 | jobject ObjectType::encoding() const { |
duke@435 | 88 | assert(is_constant(), "must be"); |
jrose@1424 | 89 | return constant_value()->constant_encoding(); |
duke@435 | 90 | } |
duke@435 | 91 | |
duke@435 | 92 | bool ObjectType::is_loaded() const { |
duke@435 | 93 | assert(is_constant(), "must be"); |
duke@435 | 94 | return constant_value()->is_loaded(); |
duke@435 | 95 | } |
duke@435 | 96 | |
duke@435 | 97 | ciObject* ObjectConstant::constant_value() const { return _value; } |
duke@435 | 98 | ciObject* ArrayConstant::constant_value() const { return _value; } |
duke@435 | 99 | ciObject* InstanceConstant::constant_value() const { return _value; } |
duke@435 | 100 | ciObject* ClassConstant::constant_value() const { return _value; } |
duke@435 | 101 | |
duke@435 | 102 | |
duke@435 | 103 | ValueType* as_ValueType(BasicType type) { |
duke@435 | 104 | switch (type) { |
duke@435 | 105 | case T_VOID : return voidType; |
duke@435 | 106 | case T_BYTE : // fall through |
duke@435 | 107 | case T_CHAR : // fall through |
duke@435 | 108 | case T_SHORT : // fall through |
duke@435 | 109 | case T_BOOLEAN: // fall through |
duke@435 | 110 | case T_INT : return intType; |
duke@435 | 111 | case T_LONG : return longType; |
duke@435 | 112 | case T_FLOAT : return floatType; |
duke@435 | 113 | case T_DOUBLE : return doubleType; |
duke@435 | 114 | case T_ARRAY : return arrayType; |
duke@435 | 115 | case T_OBJECT : return objectType; |
duke@435 | 116 | case T_ADDRESS: return addressType; |
duke@435 | 117 | case T_ILLEGAL: return illegalType; |
duke@435 | 118 | } |
duke@435 | 119 | ShouldNotReachHere(); |
duke@435 | 120 | return illegalType; |
duke@435 | 121 | } |
duke@435 | 122 | |
duke@435 | 123 | |
duke@435 | 124 | ValueType* as_ValueType(ciConstant value) { |
duke@435 | 125 | switch (value.basic_type()) { |
duke@435 | 126 | case T_BYTE : // fall through |
duke@435 | 127 | case T_CHAR : // fall through |
duke@435 | 128 | case T_SHORT : // fall through |
duke@435 | 129 | case T_BOOLEAN: // fall through |
duke@435 | 130 | case T_INT : return new IntConstant (value.as_int ()); |
duke@435 | 131 | case T_LONG : return new LongConstant (value.as_long ()); |
duke@435 | 132 | case T_FLOAT : return new FloatConstant (value.as_float ()); |
duke@435 | 133 | case T_DOUBLE : return new DoubleConstant(value.as_double()); |
duke@435 | 134 | case T_ARRAY : // fall through (ciConstant doesn't have an array accessor) |
duke@435 | 135 | case T_OBJECT : return new ObjectConstant(value.as_object()); |
duke@435 | 136 | } |
duke@435 | 137 | ShouldNotReachHere(); |
duke@435 | 138 | return illegalType; |
duke@435 | 139 | } |
duke@435 | 140 | |
duke@435 | 141 | |
duke@435 | 142 | BasicType as_BasicType(ValueType* type) { |
duke@435 | 143 | switch (type->tag()) { |
duke@435 | 144 | case voidTag: return T_VOID; |
duke@435 | 145 | case intTag: return T_INT; |
duke@435 | 146 | case longTag: return T_LONG; |
duke@435 | 147 | case floatTag: return T_FLOAT; |
duke@435 | 148 | case doubleTag: return T_DOUBLE; |
duke@435 | 149 | case objectTag: return T_OBJECT; |
duke@435 | 150 | case addressTag: return T_ADDRESS; |
duke@435 | 151 | case illegalTag: return T_ILLEGAL; |
duke@435 | 152 | } |
duke@435 | 153 | ShouldNotReachHere(); |
duke@435 | 154 | return T_ILLEGAL; |
duke@435 | 155 | } |