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//===- VEMCAsmInfo.cpp - VE asm properties --------------------------------===//
//
// 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 declarations of the VEMCAsmInfo properties.
//
//===----------------------------------------------------------------------===//
#include "VEMCAsmInfo.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCValue.h"
#include "llvm/TargetParser/Triple.h"
using namespace llvm;
const MCAsmInfo::AtSpecifier atSpecifiers[] = {
{VE::S_HI32, "hi"},
{VE::S_LO32, "lo"},
{VE::S_PC_HI32, "pc_hi"},
{VE::S_PC_LO32, "pc_lo"},
{VE::S_GOT_HI32, "got_hi"},
{VE::S_GOT_LO32, "got_lo"},
{VE::S_GOTOFF_HI32, "gotoff_hi"},
{VE::S_GOTOFF_LO32, "gotoff_lo"},
{VE::S_PLT_HI32, "plt_hi"},
{VE::S_PLT_LO32, "plt_lo"},
{VE::S_TLS_GD_HI32, "tls_gd_hi"},
{VE::S_TLS_GD_LO32, "tls_gd_lo"},
{VE::S_TPOFF_HI32, "tpoff_hi"},
{VE::S_TPOFF_LO32, "tpoff_lo"},
};
VE::Fixups VE::getFixupKind(uint8_t S) {
switch (S) {
default:
llvm_unreachable("Unhandled VEMCExpr::Specifier");
case VE::S_REFLONG:
return VE::fixup_ve_reflong;
case VE::S_HI32:
return VE::fixup_ve_hi32;
case VE::S_LO32:
return VE::fixup_ve_lo32;
case VE::S_PC_HI32:
return VE::fixup_ve_pc_hi32;
case VE::S_PC_LO32:
return VE::fixup_ve_pc_lo32;
case VE::S_GOT_HI32:
return VE::fixup_ve_got_hi32;
case VE::S_GOT_LO32:
return VE::fixup_ve_got_lo32;
case VE::S_GOTOFF_HI32:
return VE::fixup_ve_gotoff_hi32;
case VE::S_GOTOFF_LO32:
return VE::fixup_ve_gotoff_lo32;
case VE::S_PLT_HI32:
return VE::fixup_ve_plt_hi32;
case VE::S_PLT_LO32:
return VE::fixup_ve_plt_lo32;
case VE::S_TLS_GD_HI32:
return VE::fixup_ve_tls_gd_hi32;
case VE::S_TLS_GD_LO32:
return VE::fixup_ve_tls_gd_lo32;
case VE::S_TPOFF_HI32:
return VE::fixup_ve_tpoff_hi32;
case VE::S_TPOFF_LO32:
return VE::fixup_ve_tpoff_lo32;
}
}
void VEELFMCAsmInfo::anchor() {}
VEELFMCAsmInfo::VEELFMCAsmInfo(const Triple &TheTriple) {
CodePointerSize = CalleeSaveStackSlotSize = 8;
MaxInstLength = MinInstAlignment = 8;
// VE uses ".*byte" directive for unaligned data.
Data8bitsDirective = "\t.byte\t";
Data16bitsDirective = "\t.2byte\t";
Data32bitsDirective = "\t.4byte\t";
Data64bitsDirective = "\t.8byte\t";
// Uses '.section' before '.bss' directive. VE requires this although
// assembler manual says sinple '.bss' is supported.
UsesELFSectionDirectiveForBSS = true;
SupportsDebugInformation = true;
initializeAtSpecifiers(atSpecifiers);
}
void VEELFMCAsmInfo::printSpecifierExpr(raw_ostream &OS,
const MCSpecifierExpr &Expr) const {
printExpr(OS, *Expr.getSubExpr());
auto specifier = Expr.getSpecifier();
if (specifier && specifier != VE::S_REFLONG)
OS << '@' << getSpecifierName(specifier);
}
bool VEELFMCAsmInfo::evaluateAsRelocatableImpl(const MCSpecifierExpr &Expr,
MCValue &Res,
const MCAssembler *Asm) const {
if (!Expr.getSubExpr()->evaluateAsRelocatable(Res, Asm))
return false;
Res.setSpecifier(Expr.getSpecifier());
return true;
}
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