forked from OSchip/llvm-project
84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
//===-- NVPTXMCExpr.h - NVPTX specific MC expression classes ----*- 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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// Modeled after ARMMCExpr
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#ifndef NVPTXMCEXPR_H
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#define NVPTXMCEXPR_H
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#include "llvm/ADT/APFloat.h"
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#include "llvm/MC/MCExpr.h"
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namespace llvm {
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class NVPTXFloatMCExpr : public MCTargetExpr {
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public:
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enum VariantKind {
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VK_NVPTX_None,
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VK_NVPTX_SINGLE_PREC_FLOAT, // FP constant in single-precision
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VK_NVPTX_DOUBLE_PREC_FLOAT // FP constant in double-precision
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};
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private:
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const VariantKind Kind;
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const APFloat Flt;
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explicit NVPTXFloatMCExpr(VariantKind _Kind, APFloat _Flt)
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: Kind(_Kind), Flt(_Flt) {}
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public:
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/// @name Construction
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/// @{
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static const NVPTXFloatMCExpr *Create(VariantKind Kind, APFloat Flt,
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MCContext &Ctx);
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static const NVPTXFloatMCExpr *CreateConstantFPSingle(APFloat Flt,
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MCContext &Ctx) {
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return Create(VK_NVPTX_SINGLE_PREC_FLOAT, Flt, Ctx);
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}
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static const NVPTXFloatMCExpr *CreateConstantFPDouble(APFloat Flt,
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MCContext &Ctx) {
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return Create(VK_NVPTX_DOUBLE_PREC_FLOAT, Flt, Ctx);
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}
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/// @}
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/// @name Accessors
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/// @{
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/// getOpcode - Get the kind of this expression.
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VariantKind getKind() const { return Kind; }
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/// getSubExpr - Get the child of this expression.
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APFloat getAPFloat() const { return Flt; }
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/// @}
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void PrintImpl(raw_ostream &OS) const override;
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bool EvaluateAsRelocatableImpl(MCValue &Res,
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const MCAsmLayout *Layout) const override {
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return false;
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}
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void AddValueSymbols(MCAssembler *) const override {};
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const MCSection *FindAssociatedSection() const override {
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return nullptr;
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}
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// There are no TLS NVPTXMCExprs at the moment.
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void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
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static bool classof(const MCExpr *E) {
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return E->getKind() == MCExpr::Target;
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}
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};
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} // end namespace llvm
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#endif
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