[llvm] cb6fc4b - [LegalizeIntegerTypes] Use GetExpandedInteger instead of SplitInteger in ExpandIntRes_XMULO.

[Craig Topper via llvm-commits]

Author: Craig Topper
Date: 2021-02-23T23:53:45-08:00
New Revision: cb6fc4b0a35402a946e17b101ecd5cd0edd8c602

URL: https://github.com/llvm/llvm-project/commit/cb6fc4b0a35402a946e17b101ecd5cd0edd8c602
DIFF: https://github.com/llvm/llvm-project/commit/cb6fc4b0a35402a946e17b101ecd5cd0edd8c602.diff

LOG: [LegalizeIntegerTypes] Use GetExpandedInteger instead of SplitInteger in ExpandIntRes_XMULO.

We know the input is going to be expanded as well, so we should
just ask for the already expanded operands. Otherwise we create
nodes that are just going to need to be legalized.

Added: 
    

Modified: 
    llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp

Removed: 
    


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diff  --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
index 962ae6733fe2..831628959acc 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
@@ -3940,10 +3940,10 @@ void DAGTypeLegalizer::ExpandIntRes_XMULO(SDNode *N,
     // %res = { %5.0, %0 || %1.1 || %2.1 || %5.1 }
     SDValue LHS = N->getOperand(0), RHS = N->getOperand(1);
     SDValue LHSHigh, LHSLow, RHSHigh, RHSLow;
-    SplitInteger(LHS, LHSLow, LHSHigh);
-    SplitInteger(RHS, RHSLow, RHSHigh);
-    EVT HalfVT = LHSLow.getValueType()
-      , BitVT = N->getValueType(1);
+    GetExpandedInteger(LHS, LHSLow, LHSHigh);
+    GetExpandedInteger(RHS, RHSLow, RHSHigh);
+    EVT HalfVT = LHSLow.getValueType();
+    EVT BitVT = N->getValueType(1);
     SDVTList VTHalfMulO = DAG.getVTList(HalfVT, BitVT);
     SDVTList VTFullAddO = DAG.getVTList(VT, BitVT);