1 files changed, 0 insertions, 195 deletions

diff --git a/contrib/llvm/lib/Target/Mips/MipsTargetObjectFile.cpp b/contrib/llvm/lib/Target/Mips/MipsTargetObjectFile.cpp
deleted file mode 100644
index 0852b5a18c68..000000000000
--- a/contrib/llvm/lib/Target/Mips/MipsTargetObjectFile.cpp
+++ /dev/null
@@ -1,195 +0,0 @@
-//===-- MipsTargetObjectFile.cpp - Mips Object Files ----------------------===//
-//
-// 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 "MipsTargetObjectFile.h"
-#include "MipsSubtarget.h"
-#include "MipsTargetMachine.h"
-#include "MCTargetDesc/MipsMCExpr.h"
-#include "llvm/BinaryFormat/ELF.h"
-#include "llvm/IR/DataLayout.h"
-#include "llvm/IR/DerivedTypes.h"
-#include "llvm/IR/GlobalVariable.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCSectionELF.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Target/TargetMachine.h"
-using namespace llvm;
-
-static cl::opt<unsigned>
-SSThreshold("mips-ssection-threshold", cl::Hidden,
-            cl::desc("Small data and bss section threshold size (default=8)"),
-            cl::init(8));
-
-static cl::opt<bool>
-LocalSData("mlocal-sdata", cl::Hidden,
-           cl::desc("MIPS: Use gp_rel for object-local data."),
-           cl::init(true));
-
-static cl::opt<bool>
-ExternSData("mextern-sdata", cl::Hidden,
-            cl::desc("MIPS: Use gp_rel for data that is not defined by the "
-                     "current object."),
-            cl::init(true));
-
-static cl::opt<bool>
-EmbeddedData("membedded-data", cl::Hidden,
-             cl::desc("MIPS: Try to allocate variables in the following"
-                      " sections if possible: .rodata, .sdata, .data ."),
-             cl::init(false));
-
-void MipsTargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &TM){
-  TargetLoweringObjectFileELF::Initialize(Ctx, TM);
-  InitializeELF(TM.Options.UseInitArray);
-
-  SmallDataSection = getContext().getELFSection(
-      ".sdata", ELF::SHT_PROGBITS,
-      ELF::SHF_WRITE | ELF::SHF_ALLOC | ELF::SHF_MIPS_GPREL);
-
-  SmallBSSSection = getContext().getELFSection(".sbss", ELF::SHT_NOBITS,
-                                               ELF::SHF_WRITE | ELF::SHF_ALLOC |
-                                                   ELF::SHF_MIPS_GPREL);
-  this->TM = &static_cast<const MipsTargetMachine &>(TM);
-}
-
-// A address must be loaded from a small section if its size is less than the
-// small section size threshold. Data in this section must be addressed using
-// gp_rel operator.
-static bool IsInSmallSection(uint64_t Size) {
-  // gcc has traditionally not treated zero-sized objects as small data, so this
-  // is effectively part of the ABI.
-  return Size > 0 && Size <= SSThreshold;
-}
-
-/// Return true if this global address should be placed into small data/bss
-/// section.
-bool MipsTargetObjectFile::IsGlobalInSmallSection(
-    const GlobalObject *GO, const TargetMachine &TM) const {
-  // We first check the case where global is a declaration, because finding
-  // section kind using getKindForGlobal() is only allowed for global
-  // definitions.
-  if (GO->isDeclaration() || GO->hasAvailableExternallyLinkage())
-    return IsGlobalInSmallSectionImpl(GO, TM);
-
-  return IsGlobalInSmallSection(GO, TM, getKindForGlobal(GO, TM));
-}
-
-/// Return true if this global address should be placed into small data/bss
-/// section.
-bool MipsTargetObjectFile::
-IsGlobalInSmallSection(const GlobalObject *GO, const TargetMachine &TM,
-                       SectionKind Kind) const {
-  return IsGlobalInSmallSectionImpl(GO, TM) &&
-         (Kind.isData() || Kind.isBSS() || Kind.isCommon() ||
-          Kind.isReadOnly());
-}
-
-/// Return true if this global address should be placed into small data/bss
-/// section. This method does all the work, except for checking the section
-/// kind.
-bool MipsTargetObjectFile::
-IsGlobalInSmallSectionImpl(const GlobalObject *GO,
-                           const TargetMachine &TM) const {
-  const MipsSubtarget &Subtarget =
-      *static_cast<const MipsTargetMachine &>(TM).getSubtargetImpl();
-
-  // Return if small section is not available.
-  if (!Subtarget.useSmallSection())
-    return false;
-
-  // Only global variables, not functions.
-  const GlobalVariable *GVA = dyn_cast<GlobalVariable>(GO);
-  if (!GVA)
-    return false;
-
-  // If the variable has an explicit section, it is placed in that section but
-  // it's addressing mode may change.
-  if (GVA->hasSection()) {
-    StringRef Section = GVA->getSection();
-
-    // Explicitly placing any variable in the small data section overrides
-    // the global -G value.
-    if (Section == ".sdata" || Section == ".sbss")
-      return true;
-
-    // Otherwise reject accessing it through the gp pointer. There are some
-    // historic cases which GCC doesn't appear to respect any more. These
-    // are .lit4, .lit8 and .srdata. For the moment reject these as well.
-    return false;
-  }
-
-  // Enforce -mlocal-sdata.
-  if (!LocalSData && GVA->hasLocalLinkage())
-    return false;
-
-  // Enforce -mextern-sdata.
-  if (!ExternSData && ((GVA->hasExternalLinkage() && GVA->isDeclaration()) ||
-                       GVA->hasCommonLinkage()))
-    return false;
-
-  // Enforce -membedded-data.
-  if (EmbeddedData && GVA->isConstant())
-    return false;
-
-  Type *Ty = GVA->getValueType();
-
-  // It is possible that the type of the global is unsized, i.e. a declaration
-  // of a extern struct. In this case don't presume it is in the small data
-  // section. This happens e.g. when building the FreeBSD kernel.
-  if (!Ty->isSized())
-    return false;
-
-  return IsInSmallSection(
-      GVA->getParent()->getDataLayout().getTypeAllocSize(Ty));
-}
-
-MCSection *MipsTargetObjectFile::SelectSectionForGlobal(
-    const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const {
-  // TODO: Could also support "weak" symbols as well with ".gnu.linkonce.s.*"
-  // sections?
-
-  // Handle Small Section classification here.
-  if (Kind.isBSS() && IsGlobalInSmallSection(GO, TM, Kind))
-    return SmallBSSSection;
-  if (Kind.isData() && IsGlobalInSmallSection(GO, TM, Kind))
-    return SmallDataSection;
-  if (Kind.isReadOnly() && IsGlobalInSmallSection(GO, TM, Kind))
-    return SmallDataSection;
-
-  // Otherwise, we work the same as ELF.
-  return TargetLoweringObjectFileELF::SelectSectionForGlobal(GO, Kind, TM);
-}
-
-/// Return true if this constant should be placed into small data section.
-bool MipsTargetObjectFile::IsConstantInSmallSection(
-    const DataLayout &DL, const Constant *CN, const TargetMachine &TM) const {
-  return (static_cast<const MipsTargetMachine &>(TM)
-              .getSubtargetImpl()
-              ->useSmallSection() &&
-          LocalSData && IsInSmallSection(DL.getTypeAllocSize(CN->getType())));
-}
-
-/// Return true if this constant should be placed into small data section.
-MCSection *MipsTargetObjectFile::getSectionForConstant(const DataLayout &DL,
-                                                       SectionKind Kind,
-                                                       const Constant *C,
-                                                       unsigned &Align) const {
-  if (IsConstantInSmallSection(DL, C, *TM))
-    return SmallDataSection;
-
-  // Otherwise, we work the same as ELF.
-  return TargetLoweringObjectFileELF::getSectionForConstant(DL, Kind, C, Align);
-}
-
-const MCExpr *
-MipsTargetObjectFile::getDebugThreadLocalSymbol(const MCSymbol *Sym) const {
-  const MCExpr *Expr =
-      MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_None, getContext());
-  Expr = MCBinaryExpr::createAdd(
-      Expr, MCConstantExpr::create(0x8000, getContext()), getContext());
-  return MipsMCExpr::create(MipsMCExpr::MEK_DTPREL, Expr, getContext());
-}