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//===-- SparcMCExpr.cpp - Sparc 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.
//
//===----------------------------------------------------------------------===//
//
// This file contains the implementation of the assembly expression modifiers
// accepted by the Sparc architecture (e.g. "%hi", "%lo", ...).
//
//===----------------------------------------------------------------------===//
#define DEBUG_TYPE "sparcmcexpr"
#include "SparcMCExpr.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCELF.h"
#include "llvm/Object/ELF.h"
using namespace llvm;
const SparcMCExpr*
SparcMCExpr::Create(VariantKind Kind, const MCExpr *Expr,
MCContext &Ctx) {
return new (Ctx) SparcMCExpr(Kind, Expr);
}
void SparcMCExpr::PrintImpl(raw_ostream &OS) const
{
bool closeParen = true;
switch (Kind) {
case VK_Sparc_None: closeParen = false; break;
case VK_Sparc_LO: OS << "%lo("; break;
case VK_Sparc_HI: OS << "%hi("; break;
case VK_Sparc_H44: OS << "%h44("; break;
case VK_Sparc_M44: OS << "%m44("; break;
case VK_Sparc_L44: OS << "%l44("; break;
case VK_Sparc_HH: OS << "%hh("; break;
case VK_Sparc_HM: OS << "%hm("; break;
case VK_Sparc_TLS_GD_HI22: OS << "%tgd_hi22("; break;
case VK_Sparc_TLS_GD_LO10: OS << "%tgd_lo10("; break;
case VK_Sparc_TLS_GD_ADD: OS << "%tgd_add("; break;
case VK_Sparc_TLS_GD_CALL: OS << "%tgd_call("; break;
case VK_Sparc_TLS_LDM_HI22: OS << "%tldm_hi22("; break;
case VK_Sparc_TLS_LDM_LO10: OS << "%tldm_lo10("; break;
case VK_Sparc_TLS_LDM_ADD: OS << "%tldm_add("; break;
case VK_Sparc_TLS_LDM_CALL: OS << "%tldm_call("; break;
case VK_Sparc_TLS_LDO_HIX22: OS << "%tldo_hix22("; break;
case VK_Sparc_TLS_LDO_LOX10: OS << "%tldo_lox10("; break;
case VK_Sparc_TLS_LDO_ADD: OS << "%tldo_add("; break;
case VK_Sparc_TLS_IE_HI22: OS << "%tie_hi22("; break;
case VK_Sparc_TLS_IE_LO10: OS << "%tie_lo10("; break;
case VK_Sparc_TLS_IE_LD: OS << "%tie_ld("; break;
case VK_Sparc_TLS_IE_LDX: OS << "%tie_ldx("; break;
case VK_Sparc_TLS_IE_ADD: OS << "%tie_add("; break;
case VK_Sparc_TLS_LE_HIX22: OS << "%tle_hix22("; break;
case VK_Sparc_TLS_LE_LOX10: OS << "%tle_lox10("; break;
}
const MCExpr *Expr = getSubExpr();
Expr->print(OS);
if (closeParen)
OS << ')';
}
SparcMCExpr::VariantKind SparcMCExpr::parseVariantKind(StringRef name)
{
return StringSwitch<SparcMCExpr::VariantKind>(name)
.Case("lo", VK_Sparc_LO)
.Case("hi", VK_Sparc_HI)
.Case("h44", VK_Sparc_H44)
.Case("m44", VK_Sparc_M44)
.Case("l44", VK_Sparc_L44)
.Case("hh", VK_Sparc_HH)
.Case("hm", VK_Sparc_HM)
.Case("tgd_hi22", VK_Sparc_TLS_GD_HI22)
.Case("tgd_lo10", VK_Sparc_TLS_GD_LO10)
.Case("tgd_add", VK_Sparc_TLS_GD_ADD)
.Case("tgd_call", VK_Sparc_TLS_GD_CALL)
.Case("tldm_hi22", VK_Sparc_TLS_LDM_HI22)
.Case("tldm_lo10", VK_Sparc_TLS_LDM_LO10)
.Case("tldm_add", VK_Sparc_TLS_LDM_ADD)
.Case("tldm_call", VK_Sparc_TLS_LDM_CALL)
.Case("tldo_hix22", VK_Sparc_TLS_LDO_HIX22)
.Case("tldo_lox10", VK_Sparc_TLS_LDO_LOX10)
.Case("tldo_add", VK_Sparc_TLS_LDO_ADD)
.Case("tie_hi22", VK_Sparc_TLS_IE_HI22)
.Case("tie_lo10", VK_Sparc_TLS_IE_LO10)
.Case("tie_ld", VK_Sparc_TLS_IE_LD)
.Case("tie_ldx", VK_Sparc_TLS_IE_LDX)
.Case("tie_add", VK_Sparc_TLS_IE_ADD)
.Case("tle_hix22", VK_Sparc_TLS_LE_HIX22)
.Case("tle_lox10", VK_Sparc_TLS_LE_LOX10)
.Default(VK_Sparc_None);
}
bool
SparcMCExpr::EvaluateAsRelocatableImpl(MCValue &Res,
const MCAsmLayout *Layout) const {
return getSubExpr()->EvaluateAsRelocatable(Res, *Layout);
}
static void fixELFSymbolsInTLSFixupsImpl(const MCExpr *Expr, MCAssembler &Asm) {
assert(0 && "Implement fixELFSymbolsInTLSFixupsImpl!");
}
void SparcMCExpr::fixELFSymbolsInTLSFixups(MCAssembler &Asm) const {
switch(getKind()) {
default: return;
case VK_Sparc_TLS_GD_HI22:
case VK_Sparc_TLS_GD_LO10:
case VK_Sparc_TLS_GD_ADD:
case VK_Sparc_TLS_GD_CALL:
case VK_Sparc_TLS_LDM_HI22:
case VK_Sparc_TLS_LDM_LO10:
case VK_Sparc_TLS_LDM_ADD:
case VK_Sparc_TLS_LDM_CALL:
case VK_Sparc_TLS_LDO_HIX22:
case VK_Sparc_TLS_LDO_LOX10:
case VK_Sparc_TLS_LDO_ADD:
case VK_Sparc_TLS_IE_HI22:
case VK_Sparc_TLS_IE_LO10:
case VK_Sparc_TLS_IE_LD:
case VK_Sparc_TLS_IE_LDX:
case VK_Sparc_TLS_IE_ADD:
case VK_Sparc_TLS_LE_HIX22:
case VK_Sparc_TLS_LE_LOX10: break;
}
fixELFSymbolsInTLSFixupsImpl(getSubExpr(), Asm);
}
// FIXME: This basically copies MCObjectStreamer::AddValueSymbols. Perhaps
// that method should be made public?
// FIXME: really do above: now that at least three other backends are using it.
static void AddValueSymbolsImpl(const MCExpr *Value, MCAssembler *Asm) {
switch (Value->getKind()) {
case MCExpr::Target:
llvm_unreachable("Can't handle nested target expr!");
break;
case MCExpr::Constant:
break;
case MCExpr::Binary: {
const MCBinaryExpr *BE = cast<MCBinaryExpr>(Value);
AddValueSymbolsImpl(BE->getLHS(), Asm);
AddValueSymbolsImpl(BE->getRHS(), Asm);
break;
}
case MCExpr::SymbolRef:
Asm->getOrCreateSymbolData(cast<MCSymbolRefExpr>(Value)->getSymbol());
break;
case MCExpr::Unary:
AddValueSymbolsImpl(cast<MCUnaryExpr>(Value)->getSubExpr(), Asm);
break;
}
}
void SparcMCExpr::AddValueSymbols(MCAssembler *Asm) const {
AddValueSymbolsImpl(getSubExpr(), Asm);
}
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