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[LegalizeDAG] Use MachinePointerInfo::getUnknownStack in place of MachinePointerInfo() in a couple places. NFC 

We know the pointer somewhere on the stack, we just don't know
exactly where since the index may be variable.

Differential Revision: https://reviews.llvm.org/D80060
This commit is contained in:
Craig Topper 2020-05-16 15:48:08 -07:00
parent 4f04db4b54
commit 796ae8cf82
1 changed files with 6 additions and 2 deletions
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8
llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -387,7 +387,9 @@ SDValue SelectionDAGLegalize::PerformInsertVectorEltInMemory(SDValue Vec,
SDValue StackPtr2 = TLI.getVectorElementPointer(DAG, StackPtr, VT, Tmp3);
// Store the scalar value.
Ch = DAG.getTruncStore(Ch, dl, Tmp2, StackPtr2, MachinePointerInfo(), EltVT);
Ch = DAG.getTruncStore(
Ch, dl, Tmp2, StackPtr2,
MachinePointerInfo::getUnknownStack(DAG.getMachineFunction()), EltVT);
// Load the updated vector.
return DAG.getLoad(VT, dl, Ch, StackPtr, MachinePointerInfo::getFixedStack(
DAG.getMachineFunction(), SPFI));
@ -1379,7 +1381,9 @@ SDValue SelectionDAGLegalize::ExpandInsertToVectorThroughStack(SDValue Op) {
SDValue SubStackPtr = TLI.getVectorElementPointer(DAG, StackPtr, VecVT, Idx);
// Store the subvector.
Ch = DAG.getStore(Ch, dl, Part, SubStackPtr, MachinePointerInfo());
Ch = DAG.getStore(
Ch, dl, Part, SubStackPtr,
MachinePointerInfo::getUnknownStack(DAG.getMachineFunction()));
// Finally, load the updated vector.
return DAG.getLoad(Op.getValueType(), dl, Ch, StackPtr, PtrInfo);