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//===------- RISCVConstantPoolValue.cpp - RISC-V constantpool value -------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements the RISC-V specific constantpool value class.
//
//===----------------------------------------------------------------------===//
#include "RISCVConstantPoolValue.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/Type.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
RISCVConstantPoolValue::RISCVConstantPoolValue(Type *Ty, const GlobalValue *GV)
: MachineConstantPoolValue(Ty), GV(GV), Kind(RISCVCPKind::GlobalValue) {}
RISCVConstantPoolValue::RISCVConstantPoolValue(LLVMContext &C, StringRef S)
: MachineConstantPoolValue(Type::getInt64Ty(C)), S(S),
Kind(RISCVCPKind::ExtSymbol) {}
RISCVConstantPoolValue *RISCVConstantPoolValue::Create(const GlobalValue *GV) {
return new RISCVConstantPoolValue(GV->getType(), GV);
}
RISCVConstantPoolValue *RISCVConstantPoolValue::Create(LLVMContext &C,
StringRef S) {
return new RISCVConstantPoolValue(C, S);
}
int RISCVConstantPoolValue::getExistingMachineCPValue(MachineConstantPool *CP,
Align Alignment) {
const std::vector<MachineConstantPoolEntry> &Constants = CP->getConstants();
for (unsigned i = 0, e = Constants.size(); i != e; ++i) {
if (Constants[i].isMachineConstantPoolEntry() &&
Constants[i].getAlign() >= Alignment) {
auto *CPV =
static_cast<RISCVConstantPoolValue *>(Constants[i].Val.MachineCPVal);
if (equals(CPV))
return i;
}
}
return -1;
}
void RISCVConstantPoolValue::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
if (isGlobalValue())
ID.AddPointer(GV);
else {
assert(isExtSymbol() && "unrecognized constant pool type");
ID.AddString(S);
}
}
void RISCVConstantPoolValue::print(raw_ostream &O) const {
if (isGlobalValue())
O << GV->getName();
else {
assert(isExtSymbol() && "unrecognized constant pool type");
O << S;
}
}
bool RISCVConstantPoolValue::equals(const RISCVConstantPoolValue *A) const {
if (isGlobalValue() && A->isGlobalValue())
return GV == A->GV;
if (isExtSymbol() && A->isExtSymbol())
return S == A->S;
return false;
}
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