61 lines · cpp
1//===- AMDGPUDelayedMCExpr.cpp - Delayed MCExpr resolve ---------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "AMDGPUDelayedMCExpr.h"10#include "llvm/MC/MCExpr.h"11#include "llvm/MC/MCValue.h"12 13using namespace llvm;14 15static msgpack::DocNode getNode(msgpack::DocNode DN, msgpack::Type Type,16 MCValue Val) {17 msgpack::Document *Doc = DN.getDocument();18 switch (Type) {19 default:20 return Doc->getEmptyNode();21 case msgpack::Type::Int:22 return Doc->getNode(static_cast<int64_t>(Val.getConstant()));23 case msgpack::Type::UInt:24 return Doc->getNode(static_cast<uint64_t>(Val.getConstant()));25 case msgpack::Type::Boolean:26 return Doc->getNode(static_cast<bool>(Val.getConstant()));27 }28}29 30void DelayedMCExprs::assignDocNode(msgpack::DocNode &DN, msgpack::Type Type,31 const MCExpr *ExprValue) {32 MCValue Res;33 if (ExprValue->evaluateAsRelocatable(Res, nullptr)) {34 if (Res.isAbsolute()) {35 DN = getNode(DN, Type, Res);36 return;37 }38 }39 40 DelayedExprs.emplace_back(DN, Type, ExprValue);41}42 43bool DelayedMCExprs::resolveDelayedExpressions() {44 while (!DelayedExprs.empty()) {45 Expr DE = DelayedExprs.front();46 MCValue Res;47 48 if (!DE.ExprValue->evaluateAsRelocatable(Res, nullptr) || !Res.isAbsolute())49 return false;50 51 DelayedExprs.pop_front();52 DE.DN = getNode(DE.DN, DE.Type, Res);53 }54 55 return true;56}57 58void DelayedMCExprs::clear() { DelayedExprs.clear(); }59 60bool DelayedMCExprs::empty() { return DelayedExprs.empty(); }61