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| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2014-07-28 17:31:39 +0000 |
|---|---|---|
| committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2014-07-28 17:31:39 +0000 |
| commit | 86033cae8414fbe9ff0eece890136a43a3b2f860 (patch) | |
| tree | 14baef6f1ecd0243fb4f1ab19574cf5b7ef9ddb1 /llvm/lib | |
| parent | 9a1d12dc8843cacdca1eac553c65383a2355fee3 (diff) | |
| download | bcm5719-llvm-86033cae8414fbe9ff0eece890136a43a3b2f860.tar.gz bcm5719-llvm-86033cae8414fbe9ff0eece890136a43a3b2f860.zip | |
R600/SI: Make argument loads invariant
llvm-svn: 214101
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/R600/SIISelLowering.cpp | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/llvm/lib/Target/R600/SIISelLowering.cpp b/llvm/lib/Target/R600/SIISelLowering.cpp index 698f66fc43d..a4d4195edde 100644 --- a/llvm/lib/Target/R600/SIISelLowering.cpp +++ b/llvm/lib/Target/R600/SIISelLowering.cpp @@ -290,19 +290,27 @@ bool SITargetLowering::shouldConvertConstantLoadToIntImm(const APInt &Imm, } SDValue SITargetLowering::LowerParameter(SelectionDAG &DAG, EVT VT, EVT MemVT, - SDLoc DL, SDValue Chain, + SDLoc SL, SDValue Chain, unsigned Offset, bool Signed) const { + const DataLayout *DL = getDataLayout(); + + Type *Ty = VT.getTypeForEVT(*DAG.getContext()); + MachineRegisterInfo &MRI = DAG.getMachineFunction().getRegInfo(); - PointerType *PtrTy = PointerType::get(VT.getTypeForEVT(*DAG.getContext()), - AMDGPUAS::CONSTANT_ADDRESS); - SDValue BasePtr = DAG.getCopyFromReg(Chain, DL, + PointerType *PtrTy = PointerType::get(Ty, AMDGPUAS::CONSTANT_ADDRESS); + SDValue BasePtr = DAG.getCopyFromReg(Chain, SL, MRI.getLiveInVirtReg(AMDGPU::SGPR0_SGPR1), MVT::i64); - SDValue Ptr = DAG.getNode(ISD::ADD, DL, MVT::i64, BasePtr, + SDValue Ptr = DAG.getNode(ISD::ADD, SL, MVT::i64, BasePtr, DAG.getConstant(Offset, MVT::i64)); - return DAG.getExtLoad(Signed ? ISD::SEXTLOAD : ISD::ZEXTLOAD, DL, VT, Chain, Ptr, - MachinePointerInfo(UndefValue::get(PtrTy)), MemVT, - false, false, MemVT.getSizeInBits() >> 3); - + SDValue PtrOffset = DAG.getUNDEF(getPointerTy(AMDGPUAS::CONSTANT_ADDRESS)); + MachinePointerInfo PtrInfo(UndefValue::get(PtrTy)); + + return DAG.getLoad(ISD::UNINDEXED, Signed ? ISD::SEXTLOAD : ISD::ZEXTLOAD, + VT, SL, Chain, Ptr, PtrOffset, PtrInfo, MemVT, + false, // isVolatile + true, // isNonTemporal + true, // isInvariant + DL->getABITypeAlignment(Ty)); // Alignment } SDValue SITargetLowering::LowerFormalArguments( |
