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-exception
6//
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(V: static_cast<int64_t>(Val.getConstant()));
23 case msgpack::Type::UInt:
24 return Doc->getNode(V: static_cast<uint64_t>(Val.getConstant()));
25 case msgpack::Type::Boolean:
26 return Doc->getNode(V: 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, Asm: nullptr)) {
34 if (Res.isAbsolute()) {
35 DN = getNode(DN, Type, Val: Res);
36 return;
37 }
38 }
39
40 DelayedExprs.emplace_back(args&: DN, args&: Type, args&: 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, Asm: nullptr) || !Res.isAbsolute())
49 return false;
50
51 DelayedExprs.pop_front();
52 DE.DN = getNode(DN: DE.DN, Type: DE.Type, Val: Res);
53 }
54
55 return true;
56}
57
58void DelayedMCExprs::clear() { DelayedExprs.clear(); }
59
60bool DelayedMCExprs::empty() { return DelayedExprs.empty(); }
61