diff options
author | Pirama Arumuga Nainar <pirama@google.com> | 2016-03-03 15:48:50 -0800 |
---|---|---|
committer | Pirama Arumuga Nainar <pirama@google.com> | 2016-03-03 16:08:14 -0800 |
commit | f3ef5332fa3f4d5ec72c178a2b19dac363a19383 (patch) | |
tree | b335b029f55ecd8145638c9d723e3680f098d516 /lib/Target/WebAssembly/WebAssemblyISelLowering.h | |
parent | 4310bcf018d080c679c61f59d2db434ccf06a412 (diff) | |
download | llvm-f3ef5332fa3f4d5ec72c178a2b19dac363a19383.tar.gz |
Update aosp/master LLVM for rebase to r256229
http://b/26987366
Change-Id: I1f29c4676a8abe633ab5707dded58d846c973d50
Diffstat (limited to 'lib/Target/WebAssembly/WebAssemblyISelLowering.h')
-rw-r--r-- | lib/Target/WebAssembly/WebAssemblyISelLowering.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/lib/Target/WebAssembly/WebAssemblyISelLowering.h b/lib/Target/WebAssembly/WebAssemblyISelLowering.h new file mode 100644 index 000000000000..e7232a042e12 --- /dev/null +++ b/lib/Target/WebAssembly/WebAssemblyISelLowering.h @@ -0,0 +1,93 @@ +//- WebAssemblyISelLowering.h - WebAssembly DAG Lowering Interface -*- C++ -*-// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +/// +/// \file +/// \brief This file defines the interfaces that WebAssembly uses to lower LLVM +/// code into a selection DAG. +/// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYISELLOWERING_H +#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYISELLOWERING_H + +#include "llvm/Target/TargetLowering.h" + +namespace llvm { + +namespace WebAssemblyISD { + +enum NodeType : unsigned { + FIRST_NUMBER = ISD::BUILTIN_OP_END, +#define HANDLE_NODETYPE(NODE) NODE, +#include "WebAssemblyISD.def" +#undef HANDLE_NODETYPE +}; + +} // end namespace WebAssemblyISD + +class WebAssemblySubtarget; +class WebAssemblyTargetMachine; + +class WebAssemblyTargetLowering final : public TargetLowering { +public: + WebAssemblyTargetLowering(const TargetMachine &TM, + const WebAssemblySubtarget &STI); + +private: + /// Keep a pointer to the WebAssemblySubtarget around so that we can make the + /// right decision when generating code for different targets. + const WebAssemblySubtarget *Subtarget; + + FastISel *createFastISel(FunctionLoweringInfo &FuncInfo, + const TargetLibraryInfo *LibInfo) const override; + bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const override; + MVT getScalarShiftAmountTy(const DataLayout &DL, EVT) const override; + const char *getTargetNodeName(unsigned Opcode) const override; + std::pair<unsigned, const TargetRegisterClass *> + getRegForInlineAsmConstraint(const TargetRegisterInfo *TRI, + StringRef Constraint, MVT VT) const override; + bool isCheapToSpeculateCttz() const override; + bool isCheapToSpeculateCtlz() const override; + bool isLegalAddressingMode(const DataLayout &DL, const AddrMode &AM, Type *Ty, + unsigned AS) const override; + + SDValue LowerCall(CallLoweringInfo &CLI, + SmallVectorImpl<SDValue> &InVals) const override; + bool CanLowerReturn(CallingConv::ID CallConv, MachineFunction &MF, + bool isVarArg, + const SmallVectorImpl<ISD::OutputArg> &Outs, + LLVMContext &Context) const override; + SDValue LowerReturn(SDValue Chain, CallingConv::ID CallConv, bool isVarArg, + const SmallVectorImpl<ISD::OutputArg> &Outs, + const SmallVectorImpl<SDValue> &OutVals, SDLoc dl, + SelectionDAG &DAG) const override; + SDValue LowerFormalArguments(SDValue Chain, CallingConv::ID CallConv, + bool IsVarArg, + const SmallVectorImpl<ISD::InputArg> &Ins, + SDLoc DL, SelectionDAG &DAG, + SmallVectorImpl<SDValue> &InVals) const override; + + // Custom lowering hooks. + SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const override; + SDValue LowerFrameIndex(SDValue Op, SelectionDAG &DAG) const; + SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const; + SDValue LowerExternalSymbol(SDValue Op, SelectionDAG &DAG) const; + SDValue LowerBR_JT(SDValue Op, SelectionDAG &DAG) const; + SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG) const; + SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG) const; +}; + +namespace WebAssembly { +FastISel *createFastISel(FunctionLoweringInfo &funcInfo, + const TargetLibraryInfo *libInfo); +} // end namespace WebAssembly + +} // end namespace llvm + +#endif |