814b34f31e
This commit changes the branch emission logic so that instead of throwing the "branch target out of range" error, we emit a relocation instead.
64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
//===-- CSKYAsmBackend.h - CSKY Assembler Backend -------------------------===//
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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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#ifndef LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYASMBACKEND_H
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#define LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYASMBACKEND_H
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#include "MCTargetDesc/CSKYFixupKinds.h"
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#include "llvm/MC/MCAsmBackend.h"
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#include "llvm/MC/MCSubtargetInfo.h"
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#include "llvm/MC/MCTargetOptions.h"
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namespace llvm {
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class CSKYAsmBackend : public MCAsmBackend {
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public:
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CSKYAsmBackend(const MCSubtargetInfo &STI, const MCTargetOptions &OP)
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: MCAsmBackend(llvm::endianness::little) {}
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unsigned int getNumFixupKinds() const override {
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return CSKY::NumTargetFixupKinds;
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}
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void applyFixup(const MCAssembler &Asm, const MCFixup &Fixup,
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const MCValue &Target, MutableArrayRef<char> Data,
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uint64_t Value, bool IsResolved,
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const MCSubtargetInfo *STI) const override;
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const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const override;
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bool fixupNeedsRelaxation(const MCFixup &Fixup,
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uint64_t Value) const override;
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void relaxInstruction(MCInst &Inst,
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const MCSubtargetInfo &STI) const override;
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bool mayNeedRelaxation(const MCInst &Inst,
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const MCSubtargetInfo &STI) const override;
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bool fixupNeedsRelaxationAdvanced(const MCAssembler &Asm,
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const MCFixup &Fixup, bool Resolved,
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uint64_t Value,
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const MCRelaxableFragment *DF,
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const bool WasForced) const override;
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bool writeNopData(raw_ostream &OS, uint64_t Count,
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const MCSubtargetInfo *STI) const override;
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bool shouldForceRelocation(const MCAssembler &Asm, const MCFixup &Fixup,
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const MCValue &Target, const uint64_t Value,
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const MCSubtargetInfo *STI) override;
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std::unique_ptr<MCObjectTargetWriter>
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createObjectTargetWriter() const override;
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};
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} // namespace llvm
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#endif // LLVM_LIB_TARGET_CSKY_MCTARGETDESC_CSKYASMBACKEND_H
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