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//===-- XtensaMCExpr.cpp - Xtensa specific MC expression classes ----------===//
//
// The LLVM Compiler Infrastructure
//
// 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 contains the implementation of the assembly expression modifiers
// accepted by the Xtensa architecture
//
//===----------------------------------------------------------------------===//
#include "XtensaMCExpr.h"
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbolELF.h"
#include "llvm/MC/MCValue.h"
#include "llvm/Object/ELF.h"
#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
#define DEBUG_TYPE "xtensamcexpr"
const XtensaMCExpr *XtensaMCExpr::create(const MCExpr *Expr, VariantKind Kind,
MCContext &Ctx) {
return new (Ctx) XtensaMCExpr(Expr, Kind);
}
void XtensaMCExpr::printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const {
bool HasVariant = getKind() != VK_Xtensa_None;
if (HasVariant)
OS << '%' << getVariantKindName(getKind()) << '(';
Expr->print(OS, MAI);
if (HasVariant)
OS << ')';
}
bool XtensaMCExpr::evaluateAsRelocatableImpl(MCValue &Res,
const MCAssembler *Asm,
const MCFixup *Fixup) const {
return getSubExpr()->evaluateAsRelocatable(Res, Asm, Fixup);
}
void XtensaMCExpr::visitUsedExpr(MCStreamer &Streamer) const {
Streamer.visitUsedExpr(*getSubExpr());
}
XtensaMCExpr::VariantKind XtensaMCExpr::getVariantKindForName(StringRef name) {
return StringSwitch<XtensaMCExpr::VariantKind>(name).Default(
VK_Xtensa_Invalid);
}
StringRef XtensaMCExpr::getVariantKindName(VariantKind Kind) {
switch (Kind) {
default:
llvm_unreachable("Invalid ELF symbol kind");
}
}
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