1//===-- LanaiMCExpr.cpp - Lanai specific MC expression classes ------------===//
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 "LanaiMCExpr.h"
10#include "llvm/MC/MCAssembler.h"
11#include "llvm/MC/MCContext.h"
12#include "llvm/MC/MCStreamer.h"
13using namespace llvm;
14
15#define DEBUG_TYPE "lanaimcexpr"
16
17const LanaiMCExpr *LanaiMCExpr::create(VariantKind Kind, const MCExpr *Expr,
18                                       MCContext &Ctx) {
19  return new (Ctx) LanaiMCExpr(Kind, Expr);
20}
21
22void LanaiMCExpr::printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const {
23  if (Kind == VK_Lanai_None) {
24    Expr->print(OS, MAI);
25    return;
26  }
27
28  switch (Kind) {
29  default:
30    llvm_unreachable("Invalid kind!");
31  case VK_Lanai_ABS_HI:
32    OS << "hi";
33    break;
34  case VK_Lanai_ABS_LO:
35    OS << "lo";
36    break;
37  }
38
39  OS << '(';
40  const MCExpr *Expr = getSubExpr();
41  Expr->print(OS, MAI);
42  OS << ')';
43}
44
45void LanaiMCExpr::visitUsedExpr(MCStreamer &Streamer) const {
46  Streamer.visitUsedExpr(*getSubExpr());
47}
48
49bool LanaiMCExpr::evaluateAsRelocatableImpl(MCValue &Res,
50                                            const MCAsmLayout *Layout,
51                                            const MCFixup *Fixup) const {
52  if (!getSubExpr()->evaluateAsRelocatable(Res, Layout, Fixup))
53    return false;
54
55  Res =
56      MCValue::get(Res.getSymA(), Res.getSymB(), Res.getConstant(), getKind());
57
58  return true;
59}
60