mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-02 11:30:10 +00:00
74 lines
2.0 KiB
C++
74 lines
2.0 KiB
C++
|
//===-- MipsMCExpr.cpp - Mips 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.
|
||
|
//
|
||
|
//===----------------------------------------------------------------------===//
|
||
|
|
||
|
#define DEBUG_TYPE "mipsmcexpr"
|
||
|
#include "MipsMCExpr.h"
|
||
|
#include "llvm/MC/MCAssembler.h"
|
||
|
#include "llvm/MC/MCContext.h"
|
||
|
#include "llvm/MC/MCAsmInfo.h"
|
||
|
|
||
|
using namespace llvm;
|
||
|
|
||
|
const MipsMCExpr*
|
||
|
MipsMCExpr::Create(VariantKind Kind, const MCExpr *Expr,
|
||
|
MCContext &Ctx) {
|
||
|
return new (Ctx) MipsMCExpr(Kind, Expr);
|
||
|
}
|
||
|
|
||
|
void MipsMCExpr::PrintImpl(raw_ostream &OS) const {
|
||
|
switch (Kind) {
|
||
|
default: llvm_unreachable("Invalid kind!");
|
||
|
case VK_Mips_ABS_LO: OS << "%lo"; break;
|
||
|
case VK_Mips_ABS_HI: OS << "%hi"; break;
|
||
|
}
|
||
|
|
||
|
OS << '(';
|
||
|
Expr->print(OS);
|
||
|
OS << ')';
|
||
|
}
|
||
|
|
||
|
bool
|
||
|
MipsMCExpr::EvaluateAsRelocatableImpl(MCValue &Res,
|
||
|
const MCAsmLayout *Layout) const {
|
||
|
if (!Layout)
|
||
|
return false;
|
||
|
return getSubExpr()->EvaluateAsRelocatable(Res, *Layout);
|
||
|
}
|
||
|
|
||
|
// FIXME: This basically copies MCObjectStreamer::AddValueSymbols. Perhaps
|
||
|
// that method should be made public?
|
||
|
static void AddValueSymbolsImpl(const MCExpr *Value, MCAssembler *Asm) {
|
||
|
switch (Value->getKind()) {
|
||
|
case MCExpr::Target:
|
||
|
llvm_unreachable("Can't handle nested target expr!");
|
||
|
|
||
|
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 MipsMCExpr::AddValueSymbols(MCAssembler *Asm) const {
|
||
|
AddValueSymbolsImpl(getSubExpr(), Asm);
|
||
|
}
|