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e9ba1830df
It's completely unnecessary and can be replace with proper
SReg_64 handling instead.
This actually fixes a piglit test on SI.
v2: use correct register class in addRegisterClass,
set special classes as not allocatable
v3: revert setting special classes as not allocateable
This is a candidate for the stable branch.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175355 91177308-0d34-0410-b5e6-96231b3b80d8
51 lines
1.8 KiB
C++
51 lines
1.8 KiB
C++
//===-- SIISelLowering.h - SI DAG Lowering Interface ------------*- 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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//
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/// \file
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/// \brief SI DAG Lowering interface definition
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//
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//===----------------------------------------------------------------------===//
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#ifndef SIISELLOWERING_H
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#define SIISELLOWERING_H
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#include "AMDGPUISelLowering.h"
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#include "SIInstrInfo.h"
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namespace llvm {
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class SITargetLowering : public AMDGPUTargetLowering {
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const SIInstrInfo * TII;
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void LowerMOV_IMM(MachineInstr *MI, MachineBasicBlock &BB,
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MachineBasicBlock::iterator I, unsigned Opocde) const;
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void LowerSI_INTERP(MachineInstr *MI, MachineBasicBlock &BB,
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MachineBasicBlock::iterator I, MachineRegisterInfo & MRI) const;
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void LowerSI_WQM(MachineInstr *MI, MachineBasicBlock &BB,
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MachineBasicBlock::iterator I, MachineRegisterInfo & MRI) const;
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void LowerSI_V_CNDLT(MachineInstr *MI, MachineBasicBlock &BB,
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MachineBasicBlock::iterator I, MachineRegisterInfo & MRI) const;
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SDValue LowerLOAD(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const;
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SDValue LowerBRCOND(SDValue Op, SelectionDAG &DAG) const;
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public:
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SITargetLowering(TargetMachine &tm);
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virtual MachineBasicBlock * EmitInstrWithCustomInserter(MachineInstr * MI,
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MachineBasicBlock * BB) const;
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virtual EVT getSetCCResultType(EVT VT) const;
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virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
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virtual SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const;
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};
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} // End namespace llvm
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#endif //SIISELLOWERING_H
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