Files
clang-p2996/llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCExpr.cpp
Fangrui Song 4781a8ebd0 MCValue: add setSpecifier to simplify code
This primarily simplifies backend evaluateAsRelocatableImpl.
2025-03-23 12:36:46 -07:00

46 lines
1.3 KiB
C++

//===-- SystemZMCExpr.cpp - SystemZ specific MC expression classes --------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "SystemZMCExpr.h"
#include "llvm/MC/MCContext.h"
using namespace llvm;
#define DEBUG_TYPE "systemzmcexpr"
const SystemZMCExpr *SystemZMCExpr::create(SystemZMCExpr::Specifier Kind,
const MCExpr *Expr, MCContext &Ctx) {
return new (Ctx) SystemZMCExpr(Kind, Expr);
}
StringRef SystemZMCExpr::getVariantKindName() const {
switch (getSpecifier()) {
case VK_None:
return "A";
case VK_SystemZ_RCon:
return "R";
case VK_SystemZ_VCon:
return "V";
default:
llvm_unreachable("Invalid kind");
}
}
void SystemZMCExpr::printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const {
OS << getVariantKindName() << '(';
Expr->print(OS, MAI);
OS << ')';
}
bool SystemZMCExpr::evaluateAsRelocatableImpl(MCValue &Res,
const MCAssembler *Asm) const {
if (!getSubExpr()->evaluateAsRelocatable(Res, Asm))
return false;
Res.setSpecifier(specifier);
return true;
}