6afda56faa
Instead of caching STI in the RISCVELFTargetStreamer, store the two flags we need from it. My goal is to allow RISCVAsmPrinter to override these flags using IR module metadata for LTO. So they need to be separated from the STI used to construct the TargetStreamer. This patch should be NFC as long as no one is changing the contents of the STI that was used to construct the TargetStreamer between the constructor and the use of the flags.
95 lines
3.2 KiB
C++
95 lines
3.2 KiB
C++
//===-- RISCVTargetStreamer.h - RISC-V Target Streamer ---------*- C++ -*--===//
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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_RISCV_MCTARGETDESC_RISCVTARGETSTREAMER_H
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#define LLVM_LIB_TARGET_RISCV_MCTARGETDESC_RISCVTARGETSTREAMER_H
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#include "RISCV.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/MC/MCSubtargetInfo.h"
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namespace llvm {
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class formatted_raw_ostream;
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enum class RISCVOptionArchArgType {
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Full,
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Plus,
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Minus,
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};
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struct RISCVOptionArchArg {
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RISCVOptionArchArgType Type;
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std::string Value;
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RISCVOptionArchArg(RISCVOptionArchArgType Type, std::string Value)
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: Type(Type), Value(Value) {}
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};
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class RISCVTargetStreamer : public MCTargetStreamer {
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RISCVABI::ABI TargetABI = RISCVABI::ABI_Unknown;
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bool HasRVC = false;
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bool HasTSO = false;
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public:
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RISCVTargetStreamer(MCStreamer &S);
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void finish() override;
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virtual void reset();
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virtual void emitDirectiveOptionPush();
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virtual void emitDirectiveOptionPop();
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virtual void emitDirectiveOptionPIC();
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virtual void emitDirectiveOptionNoPIC();
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virtual void emitDirectiveOptionRVC();
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virtual void emitDirectiveOptionNoRVC();
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virtual void emitDirectiveOptionRelax();
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virtual void emitDirectiveOptionNoRelax();
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virtual void emitDirectiveOptionArch(ArrayRef<RISCVOptionArchArg> Args);
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virtual void emitDirectiveVariantCC(MCSymbol &Symbol);
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virtual void emitAttribute(unsigned Attribute, unsigned Value);
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virtual void finishAttributeSection();
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virtual void emitTextAttribute(unsigned Attribute, StringRef String);
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virtual void emitIntTextAttribute(unsigned Attribute, unsigned IntValue,
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StringRef StringValue);
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void emitTargetAttributes(const MCSubtargetInfo &STI, bool EmitStackAlign);
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void setTargetABI(RISCVABI::ABI ABI);
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RISCVABI::ABI getTargetABI() const { return TargetABI; }
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void setFlagsFromFeatures(const MCSubtargetInfo &STI);
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bool hasRVC() const { return HasRVC; }
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bool hasTSO() const { return HasTSO; }
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};
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// This part is for ascii assembly output
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class RISCVTargetAsmStreamer : public RISCVTargetStreamer {
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formatted_raw_ostream &OS;
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void finishAttributeSection() override;
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void emitAttribute(unsigned Attribute, unsigned Value) override;
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void emitTextAttribute(unsigned Attribute, StringRef String) override;
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void emitIntTextAttribute(unsigned Attribute, unsigned IntValue,
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StringRef StringValue) override;
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public:
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RISCVTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
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void emitDirectiveOptionPush() override;
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void emitDirectiveOptionPop() override;
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void emitDirectiveOptionPIC() override;
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void emitDirectiveOptionNoPIC() override;
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void emitDirectiveOptionRVC() override;
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void emitDirectiveOptionNoRVC() override;
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void emitDirectiveOptionRelax() override;
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void emitDirectiveOptionNoRelax() override;
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void emitDirectiveOptionArch(ArrayRef<RISCVOptionArchArg> Args) override;
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void emitDirectiveVariantCC(MCSymbol &Symbol) override;
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};
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}
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#endif
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