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/*
* Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright 2008, 2009 Red Hat, Inc.
* 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.
*
*/
#include "precompiled.hpp"
#include "ci/ciType.hpp"
#include "shark/llvmHeaders.hpp"
#include "shark/llvmValue.hpp"
#include "shark/sharkBuilder.hpp"
#include "shark/sharkValue.hpp"
using namespace llvm;
// Cloning
SharkValue* SharkNormalValue::clone() const {
return SharkValue::create_generic(type(), generic_value(), zero_checked());
}
SharkValue* SharkPHIValue::clone() const {
return SharkValue::create_phi(type(), (PHINode *) generic_value(), this);
}
SharkValue* SharkAddressValue::clone() const {
return SharkValue::address_constant(address_value());
}
// Casting
bool SharkValue::is_phi() const {
return false;
}
bool SharkPHIValue::is_phi() const {
return true;
}
SharkPHIValue* SharkValue::as_phi() {
ShouldNotCallThis();
}
SharkPHIValue* SharkPHIValue::as_phi() {
return this;
}
// Comparison
bool SharkNormalValue::equal_to(SharkValue *other) const {
return (this->type() == other->type() &&
this->generic_value() == other->generic_value() &&
this->zero_checked() == other->zero_checked());
}
bool SharkAddressValue::equal_to(SharkValue *other) const {
return (this->address_value() == other->address_value());
}
// Type access
ciType* SharkValue::type() const {
ShouldNotCallThis();
}
ciType* SharkNormalValue::type() const {
return _type;
}
BasicType SharkNormalValue::basic_type() const {
return type()->basic_type();
}
BasicType SharkAddressValue::basic_type() const {
return T_ADDRESS;
}
int SharkNormalValue::size() const {
return type()->size();
}
int SharkAddressValue::size() const {
return 1;
}
bool SharkValue::is_jint() const {
return false;
}
bool SharkValue::is_jlong() const {
return false;
}
bool SharkValue::is_jfloat() const {
return false;
}
bool SharkValue::is_jdouble() const {
return false;
}
bool SharkValue::is_jobject() const {
return false;
}
bool SharkValue::is_jarray() const {
return false;
}
bool SharkValue::is_address() const {
return false;
}
bool SharkNormalValue::is_jint() const {
return llvm_value()->getType() == SharkType::jint_type();
}
bool SharkNormalValue::is_jlong() const {
return llvm_value()->getType() == SharkType::jlong_type();
}
bool SharkNormalValue::is_jfloat() const {
return llvm_value()->getType() == SharkType::jfloat_type();
}
bool SharkNormalValue::is_jdouble() const {
return llvm_value()->getType() == SharkType::jdouble_type();
}
bool SharkNormalValue::is_jobject() const {
return llvm_value()->getType() == SharkType::oop_type();
}
bool SharkNormalValue::is_jarray() const {
return basic_type() == T_ARRAY;
}
bool SharkAddressValue::is_address() const {
return true;
}
// Typed conversions from SharkValues
Value* SharkValue::jint_value() const {
ShouldNotCallThis();
}
Value* SharkValue::jlong_value() const {
ShouldNotCallThis();
}
Value* SharkValue::jfloat_value() const {
ShouldNotCallThis();
}
Value* SharkValue::jdouble_value() const {
ShouldNotCallThis();
}
Value* SharkValue::jobject_value() const {
ShouldNotCallThis();
}
Value* SharkValue::jarray_value() const {
ShouldNotCallThis();
}
int SharkValue::address_value() const {
ShouldNotCallThis();
}
Value* SharkNormalValue::jint_value() const {
assert(is_jint(), "should be");
return llvm_value();
}
Value* SharkNormalValue::jlong_value() const {
assert(is_jlong(), "should be");
return llvm_value();
}
Value* SharkNormalValue::jfloat_value() const {
assert(is_jfloat(), "should be");
return llvm_value();
}
Value* SharkNormalValue::jdouble_value() const {
assert(is_jdouble(), "should be");
return llvm_value();
}
Value* SharkNormalValue::jobject_value() const {
assert(is_jobject(), "should be");
return llvm_value();
}
Value* SharkNormalValue::jarray_value() const {
// XXX assert(is_jarray(), "should be");
// XXX http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=324
assert(is_jobject(), "should be");
return llvm_value();
}
int SharkAddressValue::address_value() const {
return _bci;
}
// Type-losing conversions -- use with care!
Value* SharkNormalValue::generic_value() const {
return llvm_value();
}
Value* SharkAddressValue::generic_value() const {
return LLVMValue::intptr_constant(address_value());
}
Value* SharkValue::intptr_value(SharkBuilder* builder) const {
ShouldNotCallThis();
}
Value* SharkNormalValue::intptr_value(SharkBuilder* builder) const {
return builder->CreatePtrToInt(jobject_value(), SharkType::intptr_type());
}
// Phi-style stuff for SharkPHIState::add_incoming
void SharkValue::addIncoming(SharkValue *value, BasicBlock* block) {
ShouldNotCallThis();
}
void SharkPHIValue::addIncoming(SharkValue *value, BasicBlock* block) {
assert(!is_clone(), "shouldn't be");
((llvm::PHINode *) generic_value())->addIncoming(
value->generic_value(), block);
if (!value->zero_checked())
_all_incomers_zero_checked = false;
}
void SharkAddressValue::addIncoming(SharkValue *value, BasicBlock* block) {
assert(this->equal_to(value), "should be");
}
// Phi-style stuff for SharkState::merge
SharkValue* SharkNormalValue::merge(SharkBuilder* builder,
SharkValue* other,
BasicBlock* other_block,
BasicBlock* this_block,
const char* name) {
assert(type() == other->type(), "should be");
assert(zero_checked() == other->zero_checked(), "should be");
PHINode *phi = builder->CreatePHI(SharkType::to_stackType(type()), 0, name);
phi->addIncoming(this->generic_value(), this_block);
phi->addIncoming(other->generic_value(), other_block);
return SharkValue::create_generic(type(), phi, zero_checked());
}
SharkValue* SharkAddressValue::merge(SharkBuilder* builder,
SharkValue* other,
BasicBlock* other_block,
BasicBlock* this_block,
const char* name) {
assert(this->equal_to(other), "should be");
return this;
}
// Repeated null and divide-by-zero check removal
bool SharkValue::zero_checked() const {
ShouldNotCallThis();
}
void SharkValue::set_zero_checked(bool zero_checked) {
ShouldNotCallThis();
}
bool SharkNormalValue::zero_checked() const {
return _zero_checked;
}
void SharkNormalValue::set_zero_checked(bool zero_checked) {
_zero_checked = zero_checked;
}
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