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author | Akira Hatanaka <ahatanaka@mips.com> | 2013-03-14 18:27:31 +0000 |
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committer | Akira Hatanaka <ahatanaka@mips.com> | 2013-03-14 18:27:31 +0000 |
commit | 554d9312b284265f91ac5ee5bf0351d446f669b1 (patch) | |
tree | 0565eb97ee8372ca185b6c0dab33c94081a4c16f /lib/Target/Mips/Mips16ISelDAGToDAG.h | |
parent | a0c9939873c404f272b3e0abb102c335146764fe (diff) | |
download | llvm-554d9312b284265f91ac5ee5bf0351d446f669b1.tar.gz llvm-554d9312b284265f91ac5ee5bf0351d446f669b1.tar.bz2 llvm-554d9312b284265f91ac5ee5bf0351d446f669b1.tar.xz |
[mips] Define two subclasses of MipsDAGToDAGISel. Mips16DAGToDAGISel is for
mips16 and MipsSEDAGToDAGISel is for mips32/64.
No functionality changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177089 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/Mips16ISelDAGToDAG.h')
-rw-r--r-- | lib/Target/Mips/Mips16ISelDAGToDAG.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/lib/Target/Mips/Mips16ISelDAGToDAG.h b/lib/Target/Mips/Mips16ISelDAGToDAG.h new file mode 100644 index 0000000000..e5688d84ca --- /dev/null +++ b/lib/Target/Mips/Mips16ISelDAGToDAG.h @@ -0,0 +1,51 @@ +//===---- Mips16ISelDAGToDAG.h - A Dag to Dag Inst Selector for Mips ------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// Subclass of MipsDAGToDAGISel specialized for mips16. +// +//===----------------------------------------------------------------------===// + +#ifndef MIPS16ISELDAGTODAG_H +#define MIPS16ISELDAGTODAG_H + +#include "MipsISelDAGToDAG.h" + +namespace llvm { + +class Mips16DAGToDAGISel : public MipsDAGToDAGISel { +public: + explicit Mips16DAGToDAGISel(MipsTargetMachine &TM) : MipsDAGToDAGISel(TM) {} + +private: + std::pair<SDNode*, SDNode*> SelectMULT(SDNode *N, unsigned Opc, DebugLoc dl, + EVT Ty, bool HasLo, bool HasHi); + + SDValue getMips16SPAliasReg(); + + void getMips16SPRefReg(SDNode *Parent, SDValue &AliasReg); + + virtual bool SelectAddr16(SDNode *Parent, SDValue N, SDValue &Base, + SDValue &Offset, SDValue &Alias); + + virtual std::pair<bool, SDNode*> SelectNode(SDNode *Node); + + virtual void ProcessFunctionAfterISel(MachineFunction &MF); + + // Insert instructions to initialize the global base register in the + // first MBB of the function. + void InitGlobalBaseReg(MachineFunction &MF); + + void InitMips16SPAliasReg(MachineFunction &MF); +}; + +FunctionPass *createMips16ISelDag(MipsTargetMachine &TM); + +} + +#endif |