113 lines
3.4 KiB
C++
113 lines
3.4 KiB
C++
//===- VEMCAsmInfo.cpp - VE asm properties --------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the declarations of the VEMCAsmInfo properties.
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//
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//===----------------------------------------------------------------------===//
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#include "VEMCAsmInfo.h"
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#include "llvm/MC/MCExpr.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/MC/MCValue.h"
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#include "llvm/TargetParser/Triple.h"
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using namespace llvm;
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const MCAsmInfo::AtSpecifier atSpecifiers[] = {
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{VE::S_HI32, "hi"},
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{VE::S_LO32, "lo"},
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{VE::S_PC_HI32, "pc_hi"},
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{VE::S_PC_LO32, "pc_lo"},
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{VE::S_GOT_HI32, "got_hi"},
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{VE::S_GOT_LO32, "got_lo"},
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{VE::S_GOTOFF_HI32, "gotoff_hi"},
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{VE::S_GOTOFF_LO32, "gotoff_lo"},
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{VE::S_PLT_HI32, "plt_hi"},
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{VE::S_PLT_LO32, "plt_lo"},
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{VE::S_TLS_GD_HI32, "tls_gd_hi"},
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{VE::S_TLS_GD_LO32, "tls_gd_lo"},
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{VE::S_TPOFF_HI32, "tpoff_hi"},
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{VE::S_TPOFF_LO32, "tpoff_lo"},
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};
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VE::Fixups VE::getFixupKind(uint8_t S) {
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switch (S) {
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default:
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llvm_unreachable("Unhandled VEMCExpr::Specifier");
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case VE::S_REFLONG:
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return VE::fixup_ve_reflong;
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case VE::S_HI32:
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return VE::fixup_ve_hi32;
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case VE::S_LO32:
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return VE::fixup_ve_lo32;
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case VE::S_PC_HI32:
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return VE::fixup_ve_pc_hi32;
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case VE::S_PC_LO32:
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return VE::fixup_ve_pc_lo32;
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case VE::S_GOT_HI32:
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return VE::fixup_ve_got_hi32;
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case VE::S_GOT_LO32:
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return VE::fixup_ve_got_lo32;
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case VE::S_GOTOFF_HI32:
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return VE::fixup_ve_gotoff_hi32;
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case VE::S_GOTOFF_LO32:
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return VE::fixup_ve_gotoff_lo32;
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case VE::S_PLT_HI32:
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return VE::fixup_ve_plt_hi32;
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case VE::S_PLT_LO32:
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return VE::fixup_ve_plt_lo32;
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case VE::S_TLS_GD_HI32:
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return VE::fixup_ve_tls_gd_hi32;
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case VE::S_TLS_GD_LO32:
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return VE::fixup_ve_tls_gd_lo32;
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case VE::S_TPOFF_HI32:
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return VE::fixup_ve_tpoff_hi32;
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case VE::S_TPOFF_LO32:
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return VE::fixup_ve_tpoff_lo32;
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}
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}
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void VEELFMCAsmInfo::anchor() {}
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VEELFMCAsmInfo::VEELFMCAsmInfo(const Triple &TheTriple) {
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CodePointerSize = CalleeSaveStackSlotSize = 8;
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MaxInstLength = MinInstAlignment = 8;
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// VE uses ".*byte" directive for unaligned data.
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Data8bitsDirective = "\t.byte\t";
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Data16bitsDirective = "\t.2byte\t";
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Data32bitsDirective = "\t.4byte\t";
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Data64bitsDirective = "\t.8byte\t";
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// Uses '.section' before '.bss' directive. VE requires this although
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// assembler manual says sinple '.bss' is supported.
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UsesELFSectionDirectiveForBSS = true;
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SupportsDebugInformation = true;
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initializeAtSpecifiers(atSpecifiers);
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}
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void VEELFMCAsmInfo::printSpecifierExpr(raw_ostream &OS,
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const MCSpecifierExpr &Expr) const {
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printExpr(OS, *Expr.getSubExpr());
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auto specifier = Expr.getSpecifier();
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if (specifier && specifier != VE::S_REFLONG)
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OS << '@' << getSpecifierName(specifier);
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}
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bool VEELFMCAsmInfo::evaluateAsRelocatableImpl(const MCSpecifierExpr &Expr,
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MCValue &Res,
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const MCAssembler *Asm) const {
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if (!Expr.getSubExpr()->evaluateAsRelocatable(Res, Asm))
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return false;
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Res.setSpecifier(Expr.getSpecifier());
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return true;
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}
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