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c308f165a0
This is so that EF_MIPS_NAN2008 is set if we are using IEEE 754-2008 NaN encoding (-mnan=2008). This patch also adds support for parsing '.nan legacy' and '.nan 2008' assembly directives. The handling of these directives should match GAS' behaviour i.e., the last directive in use sets the ELF header bit (EF_MIPS_NAN2008). Differential Revision: http://reviews.llvm.org/D3346 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206396 91177308-0d34-0410-b5e6-96231b3b80d8
134 lines
4.7 KiB
C++
134 lines
4.7 KiB
C++
//===-- MipsTargetStreamer.h - Mips Target Streamer ------------*- C++ -*--===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef MIPSTARGETSTREAMER_H
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#define MIPSTARGETSTREAMER_H
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#include "llvm/MC/MCELFStreamer.h"
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#include "llvm/MC/MCStreamer.h"
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namespace llvm {
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class MipsTargetStreamer : public MCTargetStreamer {
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virtual void anchor();
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public:
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MipsTargetStreamer(MCStreamer &S);
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virtual void emitDirectiveSetMicroMips() = 0;
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virtual void emitDirectiveSetNoMicroMips() = 0;
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virtual void emitDirectiveSetMips16() = 0;
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virtual void emitDirectiveSetNoMips16() = 0;
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virtual void emitDirectiveSetReorder() = 0;
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virtual void emitDirectiveSetNoReorder() = 0;
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virtual void emitDirectiveSetMacro() = 0;
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virtual void emitDirectiveSetNoMacro() = 0;
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virtual void emitDirectiveSetAt() = 0;
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virtual void emitDirectiveSetNoAt() = 0;
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virtual void emitDirectiveEnd(StringRef Name) = 0;
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virtual void emitDirectiveEnt(const MCSymbol &Symbol) = 0;
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virtual void emitDirectiveAbiCalls() = 0;
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virtual void emitDirectiveNaN2008() = 0;
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virtual void emitDirectiveNaNLegacy() = 0;
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virtual void emitDirectiveOptionPic0() = 0;
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virtual void emitDirectiveOptionPic2() = 0;
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virtual void emitFrame(unsigned StackReg, unsigned StackSize,
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unsigned ReturnReg) = 0;
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virtual void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff) = 0;
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virtual void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff) = 0;
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virtual void emitDirectiveSetMips32R2() = 0;
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virtual void emitDirectiveSetMips64() = 0;
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virtual void emitDirectiveSetMips64R2() = 0;
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virtual void emitDirectiveSetDsp() = 0;
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};
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// This part is for ascii assembly output
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class MipsTargetAsmStreamer : public MipsTargetStreamer {
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formatted_raw_ostream &OS;
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public:
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MipsTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
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virtual void emitDirectiveSetMicroMips();
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virtual void emitDirectiveSetNoMicroMips();
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virtual void emitDirectiveSetMips16();
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virtual void emitDirectiveSetNoMips16();
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virtual void emitDirectiveSetReorder();
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virtual void emitDirectiveSetNoReorder();
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virtual void emitDirectiveSetMacro();
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virtual void emitDirectiveSetNoMacro();
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virtual void emitDirectiveSetAt();
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virtual void emitDirectiveSetNoAt();
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virtual void emitDirectiveEnd(StringRef Name);
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virtual void emitDirectiveEnt(const MCSymbol &Symbol);
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virtual void emitDirectiveAbiCalls();
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virtual void emitDirectiveNaN2008();
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virtual void emitDirectiveNaNLegacy();
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virtual void emitDirectiveOptionPic0();
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virtual void emitDirectiveOptionPic2();
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virtual void emitFrame(unsigned StackReg, unsigned StackSize,
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unsigned ReturnReg);
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virtual void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff);
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virtual void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff);
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virtual void emitDirectiveSetMips32R2();
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virtual void emitDirectiveSetMips64();
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virtual void emitDirectiveSetMips64R2();
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virtual void emitDirectiveSetDsp();
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};
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// This part is for ELF object output
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class MipsTargetELFStreamer : public MipsTargetStreamer {
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bool MicroMipsEnabled;
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const MCSubtargetInfo &STI;
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bool Pic;
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public:
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bool isMicroMipsEnabled() const { return MicroMipsEnabled; }
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MCELFStreamer &getStreamer();
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MipsTargetELFStreamer(MCStreamer &S, const MCSubtargetInfo &STI);
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virtual void emitLabel(MCSymbol *Symbol) override;
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virtual void emitAssignment(MCSymbol *Symbol, const MCExpr *Value) override;
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void finish() override;
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virtual void emitDirectiveSetMicroMips();
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virtual void emitDirectiveSetNoMicroMips();
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virtual void emitDirectiveSetMips16();
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virtual void emitDirectiveSetNoMips16();
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virtual void emitDirectiveSetReorder();
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virtual void emitDirectiveSetNoReorder();
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virtual void emitDirectiveSetMacro();
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virtual void emitDirectiveSetNoMacro();
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virtual void emitDirectiveSetAt();
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virtual void emitDirectiveSetNoAt();
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virtual void emitDirectiveEnd(StringRef Name);
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virtual void emitDirectiveEnt(const MCSymbol &Symbol);
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virtual void emitDirectiveAbiCalls();
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virtual void emitDirectiveNaN2008();
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virtual void emitDirectiveNaNLegacy();
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virtual void emitDirectiveOptionPic0();
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virtual void emitDirectiveOptionPic2();
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virtual void emitFrame(unsigned StackReg, unsigned StackSize,
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unsigned ReturnReg);
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virtual void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff);
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virtual void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff);
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virtual void emitDirectiveSetMips32R2();
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virtual void emitDirectiveSetMips64();
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virtual void emitDirectiveSetMips64R2();
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virtual void emitDirectiveSetDsp();
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};
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}
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#endif
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