Imported Upstream version 5.18.0.207

Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449

external/llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCExpr.cpp

@@ -1,150 +0,0 @@
-//===-- PPCMCExpr.cpp - PPC 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.
-//
-//===----------------------------------------------------------------------===//
-
-#include "PPCMCExpr.h"
-#include "PPCFixupKinds.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCAssembler.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCObjectStreamer.h"
-
-using namespace llvm;
-
-#define DEBUG_TYPE "ppcmcexpr"
-
-const PPCMCExpr*
-PPCMCExpr::create(VariantKind Kind, const MCExpr *Expr,
-                  bool isDarwin, MCContext &Ctx) {
-  return new (Ctx) PPCMCExpr(Kind, Expr, isDarwin);
-}
-
-void PPCMCExpr::printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const {
-  if (isDarwinSyntax()) {
-    switch (Kind) {
-    default: llvm_unreachable("Invalid kind!");
-    case VK_PPC_LO: OS << "lo16"; break;
-    case VK_PPC_HI: OS << "hi16"; break;
-    case VK_PPC_HA: OS << "ha16"; break;
-    }
-
-    OS << '(';
-    getSubExpr()->print(OS, MAI);
-    OS << ')';
-  } else {
-    getSubExpr()->print(OS, MAI);
-
-    switch (Kind) {
-    default: llvm_unreachable("Invalid kind!");
-    case VK_PPC_LO: OS << "@l"; break;
-    case VK_PPC_HI: OS << "@h"; break;
-    case VK_PPC_HA: OS << "@ha"; break;
-    case VK_PPC_HIGHER: OS << "@higher"; break;
-    case VK_PPC_HIGHERA: OS << "@highera"; break;
-    case VK_PPC_HIGHEST: OS << "@highest"; break;
-    case VK_PPC_HIGHESTA: OS << "@highesta"; break;
-    }
-  }
-}
-
-bool
-PPCMCExpr::evaluateAsConstant(int64_t &Res) const {
-  MCValue Value;
-
-  if (!getSubExpr()->evaluateAsRelocatable(Value, nullptr, nullptr))
-    return false;
-
-  if (!Value.isAbsolute())
-    return false;
-
-  Res = evaluateAsInt64(Value.getConstant());
-  return true;
-}
-
-int64_t
-PPCMCExpr::evaluateAsInt64(int64_t Value) const {
-  switch (Kind) {
-    case VK_PPC_LO:
-      return Value & 0xffff;
-    case VK_PPC_HI:
-      return (Value >> 16) & 0xffff;
-    case VK_PPC_HA:
-      return ((Value + 0x8000) >> 16) & 0xffff;
-    case VK_PPC_HIGHER:
-      return (Value >> 32) & 0xffff;
-    case VK_PPC_HIGHERA:
-      return ((Value + 0x8000) >> 32) & 0xffff;
-    case VK_PPC_HIGHEST:
-      return (Value >> 48) & 0xffff;
-    case VK_PPC_HIGHESTA:
-      return ((Value + 0x8000) >> 48) & 0xffff;
-    case VK_PPC_None:
-      break;
-  }
-  llvm_unreachable("Invalid kind!");
-}
-
-bool
-PPCMCExpr::evaluateAsRelocatableImpl(MCValue &Res,
-                                     const MCAsmLayout *Layout,
-                                     const MCFixup *Fixup) const {
-  MCValue Value;
-
-  if (!getSubExpr()->evaluateAsRelocatable(Value, Layout, Fixup))
-    return false;
-
-  if (Value.isAbsolute()) {
-    int64_t Result = evaluateAsInt64(Value.getConstant());
-    if ((Fixup == nullptr || (unsigned)Fixup->getKind() != PPC::fixup_ppc_half16) &&
-        (Result >= 0x8000))
-      return false;
-    Res = MCValue::get(Result);
-  } else {
-    if (!Layout)
-      return false;
-
-    MCContext &Context = Layout->getAssembler().getContext();
-    const MCSymbolRefExpr *Sym = Value.getSymA();
-    MCSymbolRefExpr::VariantKind Modifier = Sym->getKind();
-    if (Modifier != MCSymbolRefExpr::VK_None)
-      return false;
-    switch (Kind) {
-      default:
-        llvm_unreachable("Invalid kind!");
-      case VK_PPC_LO:
-        Modifier = MCSymbolRefExpr::VK_PPC_LO;
-        break;
-      case VK_PPC_HI:
-        Modifier = MCSymbolRefExpr::VK_PPC_HI;
-        break;
-      case VK_PPC_HA:
-        Modifier = MCSymbolRefExpr::VK_PPC_HA;
-        break;
-      case VK_PPC_HIGHERA:
-        Modifier = MCSymbolRefExpr::VK_PPC_HIGHERA;
-        break;
-      case VK_PPC_HIGHER:
-        Modifier = MCSymbolRefExpr::VK_PPC_HIGHER;
-        break;
-      case VK_PPC_HIGHEST:
-        Modifier = MCSymbolRefExpr::VK_PPC_HIGHEST;
-        break;
-      case VK_PPC_HIGHESTA:
-        Modifier = MCSymbolRefExpr::VK_PPC_HIGHESTA;
-        break;
-    }
-    Sym = MCSymbolRefExpr::create(&Sym->getSymbol(), Modifier, Context);
-    Res = MCValue::get(Sym, Value.getSymB(), Value.getConstant());
-  }
-
-  return true;
-}
-
-void PPCMCExpr::visitUsedExpr(MCStreamer &Streamer) const {
-  Streamer.visitUsedExpr(*getSubExpr());
-}