llvm/lib/Target/RISCV/RISCVTargetObjectFile.h

   1 //===-- RISCVTargetObjectFile.h - RISCV Object Info -*- C++ ---------*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_LIB_TARGET_RISCV_RISCVTARGETOBJECTFILE_H
  10 #define LLVM_LIB_TARGET_RISCV_RISCVTARGETOBJECTFILE_H
  11
  12 #include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
  13
  14 namespace llvm {
  15
  16 /// This implementation is used for RISCV ELF targets.
  17 class RISCVELFTargetObjectFile : public TargetLoweringObjectFileELF {
  18   MCSection *SmallDataSection;
  19   MCSection *SmallBSSSection;
  20   unsigned SSThreshold = 8;
  21
  22 public:
  23   void Initialize(MCContext &Ctx, const TargetMachine &TM) override;
  24
  25   /// Return true if this global address should be placed into small data/bss
  26   /// section.
  27   bool isGlobalInSmallSection(const GlobalObject *GO,
  28                               const TargetMachine &TM) const;
  29
  30   MCSection *SelectSectionForGlobal(const GlobalObject *GO, SectionKind Kind,
  31                                     const TargetMachine &TM) const override;
  32
  33   /// Return true if this constant should be placed into small data section.
  34   bool isConstantInSmallSection(const DataLayout &DL, const Constant *CN) const;
  35
  36   MCSection *getSectionForConstant(const DataLayout &DL, SectionKind Kind,
  37                                    const Constant *C,
  38                                    Align &Alignment) const override;
  39
  40   void getModuleMetadata(Module &M) override;
  41
  42   bool isInSmallSection(uint64_t Size) const;
  43 };
  44
  45 } // end namespace llvm
  46
  47 #endif