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//===-- Nios2MCExpr.cpp - Nios2 specific MC expression classes ------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "Nios2.h"
#include "Nios2MCExpr.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCObjectStreamer.h"
#include "llvm/MC/MCSymbolELF.h"
using namespace llvm;
#define DEBUG_TYPE "nios2mcexpr"
const Nios2MCExpr *Nios2MCExpr::create(Nios2MCExpr::Nios2ExprKind Kind,
const MCExpr *Expr, MCContext &Ctx) {
return new (Ctx) Nios2MCExpr(Kind, Expr);
}
const Nios2MCExpr *Nios2MCExpr::create(const MCSymbol *Symbol,
Nios2MCExpr::Nios2ExprKind Kind,
MCContext &Ctx) {
const MCSymbolRefExpr *MCSym =
MCSymbolRefExpr::create(Symbol, MCSymbolRefExpr::VK_None, Ctx);
return new (Ctx) Nios2MCExpr(Kind, MCSym);
}
void Nios2MCExpr::printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const {
switch (Kind) {
case CEK_None:
case CEK_Special:
llvm_unreachable("CEK_None and CEK_Special are invalid");
break;
case CEK_ABS_HI:
OS << "%hiadj";
break;
case CEK_ABS_LO:
OS << "%lo";
break;
}
OS << '(';
Expr->print(OS, MAI, true);
OS << ')';
}
bool Nios2MCExpr::evaluateAsRelocatableImpl(MCValue &Res,
const MCAsmLayout *Layout,
const MCFixup *Fixup) const {
return getSubExpr()->evaluateAsRelocatable(Res, Layout, Fixup);
}
void Nios2MCExpr::visitUsedExpr(MCStreamer &Streamer) const {
Streamer.visitUsedExpr(*getSubExpr());
}
void Nios2MCExpr::fixELFSymbolsInTLSFixups(MCAssembler &Asm) const {
switch (getKind()) {
case CEK_None:
case CEK_Special:
llvm_unreachable("CEK_None and CEK_Special are invalid");
break;
case CEK_ABS_HI:
case CEK_ABS_LO:
break;
}
}
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