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AMDGPU: Move R600 specific code out of AMDGPUISelLowering.cpp 

Reviewers: arsenm

Subscribers: jvesely, arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D19736

llvm-svn: 268267
This commit is contained in:
Tom Stellard 2016-05-02 18:05:17 +00:00
parent 0ddf404cf4
commit 27233b727f
3 changed files with 51 additions and 39 deletions
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39
llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
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@ -815,45 +815,6 @@ SDValue AMDGPUTargetLowering::LowerGlobalAddress(AMDGPUMachineFunction* MFI,
return DAG.getConstant(Offset, SDLoc(Op),
getPointerTy(DL, AMDGPUAS::LOCAL_ADDRESS));
}
case AMDGPUAS::CONSTANT_ADDRESS: {
MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo();
Type *EltType = GV->getValueType();
unsigned Size = DL.getTypeAllocSize(EltType);
unsigned Alignment = DL.getPrefTypeAlignment(EltType);
MVT PrivPtrVT = getPointerTy(DL, AMDGPUAS::PRIVATE_ADDRESS);
MVT ConstPtrVT = getPointerTy(DL, AMDGPUAS::CONSTANT_ADDRESS);
int FI = FrameInfo->CreateStackObject(Size, Alignment, false);
SDValue InitPtr = DAG.getFrameIndex(FI, PrivPtrVT);
const GlobalVariable *Var = cast<GlobalVariable>(GV);
if (!Var->hasInitializer()) {
// This has no use, but bugpoint will hit it.
return DAG.getZExtOrTrunc(InitPtr, SDLoc(Op), ConstPtrVT);
}
const Constant *Init = Var->getInitializer();
SmallVector<SDNode*, 8> WorkList;
for (SDNode::use_iterator I = DAG.getEntryNode()->use_begin(),
E = DAG.getEntryNode()->use_end(); I != E; ++I) {
if (I->getOpcode() != AMDGPUISD::REGISTER_LOAD && I->getOpcode() != ISD::LOAD)
continue;
WorkList.push_back(*I);
}
SDValue Chain = LowerConstantInitializer(Init, GV, InitPtr, DAG.getEntryNode(), DAG);
for (SmallVector<SDNode*, 8>::iterator I = WorkList.begin(),
E = WorkList.end(); I != E; ++I) {
SmallVector<SDValue, 8> Ops;
Ops.push_back(Chain);
for (unsigned i = 1; i < (*I)->getNumOperands(); ++i) {
Ops.push_back((*I)->getOperand(i));
}
DAG.UpdateNodeOperands(*I, Ops);
}
return DAG.getZExtOrTrunc(InitPtr, SDLoc(Op), ConstPtrVT);
}
}
const Function &Fn = *DAG.getMachineFunction().getFunction();

49
llvm/lib/Target/AMDGPU/R600ISelLowering.cpp
View File

@ -904,6 +904,55 @@ SDValue R600TargetLowering::LowerINSERT_VECTOR_ELT(SDValue Op,
return vectorToVerticalVector(DAG, Insert);
}
SDValue R600TargetLowering::LowerGlobalAddress(AMDGPUMachineFunction *MFI,
SDValue Op,
SelectionDAG &DAG) const {
GlobalAddressSDNode *GSD = cast<GlobalAddressSDNode>(Op);
if (GSD->getAddressSpace() != AMDGPUAS::CONSTANT_ADDRESS)
return AMDGPUTargetLowering::LowerGlobalAddress(MFI, Op, DAG);
const DataLayout &DL = DAG.getDataLayout();
const GlobalValue *GV = GSD->getGlobal();
MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo();
Type *EltType = GV->getValueType();
unsigned Size = DL.getTypeAllocSize(EltType);
unsigned Alignment = DL.getPrefTypeAlignment(EltType);
MVT PrivPtrVT = getPointerTy(DL, AMDGPUAS::PRIVATE_ADDRESS);
MVT ConstPtrVT = getPointerTy(DL, AMDGPUAS::CONSTANT_ADDRESS);
int FI = FrameInfo->CreateStackObject(Size, Alignment, false);
SDValue InitPtr = DAG.getFrameIndex(FI, PrivPtrVT);
const GlobalVariable *Var = cast<GlobalVariable>(GV);
if (!Var->hasInitializer()) {
// This has no use, but bugpoint will hit it.
return DAG.getZExtOrTrunc(InitPtr, SDLoc(Op), ConstPtrVT);
}
const Constant *Init = Var->getInitializer();
SmallVector<SDNode*, 8> WorkList;
for (SDNode::use_iterator I = DAG.getEntryNode()->use_begin(),
E = DAG.getEntryNode()->use_end(); I != E; ++I) {
if (I->getOpcode() != AMDGPUISD::REGISTER_LOAD && I->getOpcode() != ISD::LOAD)
continue;
WorkList.push_back(*I);
}
SDValue Chain = LowerConstantInitializer(Init, GV, InitPtr, DAG.getEntryNode(), DAG);
for (SmallVector<SDNode*, 8>::iterator I = WorkList.begin(),
E = WorkList.end(); I != E; ++I) {
SmallVector<SDValue, 8> Ops;
Ops.push_back(Chain);
for (unsigned i = 1; i < (*I)->getNumOperands(); ++i) {
Ops.push_back((*I)->getOperand(i));
}
DAG.UpdateNodeOperands(*I, Ops);
}
return DAG.getZExtOrTrunc(InitPtr, SDLoc(Op), ConstPtrVT);
}
SDValue R600TargetLowering::LowerTrig(SDValue Op, SelectionDAG &DAG) const {
// On hw >= R700, COS/SIN input must be between -1. and 1.
// Thus we lower them to TRIG ( FRACT ( x / 2Pi + 0.5) - 0.5)

2
llvm/lib/Target/AMDGPU/R600ISelLowering.h
View File

@ -63,6 +63,8 @@ private:
SDValue lowerFrameIndex(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerEXTRACT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerINSERT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerGlobalAddress(AMDGPUMachineFunction *MFI, SDValue Op,
SelectionDAG &DAG) const;
SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const;
SDValue lowerPrivateTruncStore(StoreSDNode *Store, SelectionDAG &DAG) const;