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[NVPTX] Simplify some argument lowering logic 

llvm-svn: 211945
This commit is contained in:
Justin Holewinski 2014-06-27 18:36:04 +00:00
parent e519a4301b
commit b5db95e465
1 changed files with 8 additions and 13 deletions
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21
llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
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@ -1692,8 +1692,7 @@ SDValue NVPTXTargetLowering::LowerFormalArguments(
assert(vtparts.size() > 0 && "empty aggregate type not expected");
for (unsigned parti = 0, parte = vtparts.size(); parti != parte;
++parti) {
EVT partVT = vtparts[parti];
InVals.push_back(DAG.getNode(ISD::UNDEF, dl, partVT));
InVals.push_back(DAG.getNode(ISD::UNDEF, dl, Ins[InsIdx].VT));
++InsIdx;
}
if (vtparts.size() > 0)
@ -2009,7 +2008,7 @@ NVPTXTargetLowering::LowerReturn(SDValue Chain, CallingConv::ID CallConv,
unsigned Offset = 0;
EVT VecVT =
EVT::getVectorVT(F->getContext(), OutVals[0].getValueType(), VecSize);
EVT::getVectorVT(F->getContext(), EltVT, VecSize);
unsigned PerStoreOffset =
TD->getTypeAllocSize(VecVT.getTypeForEVT(F->getContext()));
@ -2068,12 +2067,10 @@ NVPTXTargetLowering::LowerReturn(SDValue Chain, CallingConv::ID CallConv,
}
} else {
SmallVector<EVT, 16> ValVTs;
// const_cast is necessary since we are still using an LLVM version from
// before the type system re-write.
ComputePTXValueVTs(*this, RetTy, ValVTs);
SmallVector<uint64_t, 16> Offsets;
ComputePTXValueVTs(*this, RetTy, ValVTs, &Offsets, 0);
assert(ValVTs.size() == OutVals.size() && "Bad return value decomposition");
unsigned SizeSoFar = 0;
for (unsigned i = 0, e = Outs.size(); i != e; ++i) {
SDValue theVal = OutVals[i];
EVT TheValType = theVal.getValueType();
@ -2097,16 +2094,14 @@ NVPTXTargetLowering::LowerReturn(SDValue Chain, CallingConv::ID CallConv,
else if (TmpVal.getValueType().getSizeInBits() < 16)
TmpVal = DAG.getNode(ISD::ANY_EXTEND, dl, MVT::i16, TmpVal);
SDValue Ops[] = { Chain, DAG.getConstant(SizeSoFar, MVT::i32), TmpVal };
SDValue Ops[] = {
Chain,
DAG.getConstant(Offsets[i], MVT::i32),
TmpVal };
Chain = DAG.getMemIntrinsicNode(NVPTXISD::StoreRetval, dl,
DAG.getVTList(MVT::Other), Ops,
TheStoreType,
MachinePointerInfo());
if(TheValType.isVector())
SizeSoFar +=
TheStoreType.getVectorElementType().getStoreSizeInBits() / 8;
else
SizeSoFar += TheStoreType.getStoreSizeInBits()/8;
}
}
}