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author | Justin Holewinski <jholewinski@nvidia.com> | 2013-08-06 14:13:27 +0000 |
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committer | Justin Holewinski <jholewinski@nvidia.com> | 2013-08-06 14:13:27 +0000 |
commit | 82767327c59ede1f8663ec9b9a64a668993d501f (patch) | |
tree | f6e6c75ebb7e82f6d86053b46551572aedb5d621 /lib/Target/NVPTX/NVPTXMCExpr.h | |
parent | 8775a51d94b277ca6ebe12a1d20bfc2bc5a53960 (diff) | |
download | external_llvm-82767327c59ede1f8663ec9b9a64a668993d501f.zip external_llvm-82767327c59ede1f8663ec9b9a64a668993d501f.tar.gz external_llvm-82767327c59ede1f8663ec9b9a64a668993d501f.tar.bz2 |
[NVPTX] Start conversion to MC infrastructure
This change converts the NVPTX target to use the MC infrastructure
instead of directly emitting MachineInstr instances. This brings
the target more up-to-date with LLVM TOT, and should fix PR15175
and PR15958 (libNVPTXInstPrinter is empty) as a side-effect.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187798 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/NVPTX/NVPTXMCExpr.h')
-rw-r--r-- | lib/Target/NVPTX/NVPTXMCExpr.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/lib/Target/NVPTX/NVPTXMCExpr.h b/lib/Target/NVPTX/NVPTXMCExpr.h new file mode 100644 index 0000000..0efb231 --- /dev/null +++ b/lib/Target/NVPTX/NVPTXMCExpr.h @@ -0,0 +1,83 @@ +//===-- NVPTXMCExpr.h - NVPTX specific MC expression classes ----*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// Modeled after ARMMCExpr + +#ifndef NVPTXMCEXPR_H +#define NVPTXMCEXPR_H + +#include "llvm/ADT/APFloat.h" +#include "llvm/MC/MCExpr.h" + +namespace llvm { + +class NVPTXFloatMCExpr : public MCTargetExpr { +public: + enum VariantKind { + VK_NVPTX_None, + VK_NVPTX_SINGLE_PREC_FLOAT, // FP constant in single-precision + VK_NVPTX_DOUBLE_PREC_FLOAT // FP constant in double-precision + }; + +private: + const VariantKind Kind; + const APFloat Flt; + + explicit NVPTXFloatMCExpr(VariantKind _Kind, APFloat _Flt) + : Kind(_Kind), Flt(_Flt) {} + +public: + /// @name Construction + /// @{ + + static const NVPTXFloatMCExpr *Create(VariantKind Kind, APFloat Flt, + MCContext &Ctx); + + static const NVPTXFloatMCExpr *CreateConstantFPSingle(APFloat Flt, + MCContext &Ctx) { + return Create(VK_NVPTX_SINGLE_PREC_FLOAT, Flt, Ctx); + } + + static const NVPTXFloatMCExpr *CreateConstantFPDouble(APFloat Flt, + MCContext &Ctx) { + return Create(VK_NVPTX_DOUBLE_PREC_FLOAT, Flt, Ctx); + } + + /// @} + /// @name Accessors + /// @{ + + /// getOpcode - Get the kind of this expression. + VariantKind getKind() const { return Kind; } + + /// getSubExpr - Get the child of this expression. + APFloat getAPFloat() const { return Flt; } + +/// @} + + void PrintImpl(raw_ostream &OS) const; + bool EvaluateAsRelocatableImpl(MCValue &Res, + const MCAsmLayout *Layout) const { + return false; + } + void AddValueSymbols(MCAssembler *) const {}; + const MCSection *FindAssociatedSection() const { + return NULL; + } + + // There are no TLS NVPTXMCExprs at the moment. + void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const {} + + static bool classof(const MCExpr *E) { + return E->getKind() == MCExpr::Target; + } +}; +} // end namespace llvm + +#endif |