98 lines
2.6 KiB
C++
98 lines
2.6 KiB
C++
//===-- VEMCExpr.cpp - VE specific MC expression classes ------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the implementation of the assembly expression modifiers
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// accepted by the VE architecture (e.g. "%hi", "%lo", ...).
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//
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//===----------------------------------------------------------------------===//
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#include "VEMCExpr.h"
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#include "llvm/MC/MCAssembler.h"
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#include "llvm/MC/MCContext.h"
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#include "llvm/MC/MCObjectStreamer.h"
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#include "llvm/MC/MCSymbolELF.h"
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#include "llvm/Object/ELF.h"
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using namespace llvm;
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#define DEBUG_TYPE "vemcexpr"
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const VEMCExpr *VEMCExpr::create(VariantKind Kind, const MCExpr *Expr,
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MCContext &Ctx) {
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return new (Ctx) VEMCExpr(Kind, Expr);
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}
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void VEMCExpr::printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const {
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bool closeParen = printVariantKind(OS, Kind);
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const MCExpr *Expr = getSubExpr();
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Expr->print(OS, MAI);
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if (closeParen)
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OS << ')';
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printVariantKindSuffix(OS, Kind);
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}
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bool VEMCExpr::printVariantKind(raw_ostream &OS, VariantKind Kind) {
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switch (Kind) {
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case VK_VE_None:
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return false;
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case VK_VE_HI32:
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case VK_VE_LO32:
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return false; // OS << "@<text>("; break;
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}
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return true;
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}
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void VEMCExpr::printVariantKindSuffix(raw_ostream &OS, VariantKind Kind) {
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switch (Kind) {
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case VK_VE_None:
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break;
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case VK_VE_HI32:
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OS << "@hi";
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break;
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case VK_VE_LO32:
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OS << "@lo";
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break;
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}
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}
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VEMCExpr::VariantKind VEMCExpr::parseVariantKind(StringRef name) {
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return StringSwitch<VEMCExpr::VariantKind>(name)
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.Case("hi", VK_VE_HI32)
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.Case("lo", VK_VE_LO32)
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.Default(VK_VE_None);
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}
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VE::Fixups VEMCExpr::getFixupKind(VEMCExpr::VariantKind Kind) {
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switch (Kind) {
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default:
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llvm_unreachable("Unhandled VEMCExpr::VariantKind");
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case VK_VE_HI32:
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return VE::fixup_ve_hi32;
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case VK_VE_LO32:
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return VE::fixup_ve_lo32;
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}
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}
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bool VEMCExpr::evaluateAsRelocatableImpl(MCValue &Res,
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const MCAsmLayout *Layout,
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const MCFixup *Fixup) const {
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return getSubExpr()->evaluateAsRelocatable(Res, Layout, Fixup);
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}
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void VEMCExpr::visitUsedExpr(MCStreamer &Streamer) const {
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Streamer.visitUsedExpr(*getSubExpr());
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}
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void VEMCExpr::fixELFSymbolsInTLSFixups(MCAssembler &Asm) const {
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llvm_unreachable("TODO implement");
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}
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