Skip big endian for now

arsenm · arsenm · commit 5b18109cbd77 · 2025-02-04T14:02:58.000+07:00
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
@@ -566,7 +566,9 @@ SDValue DAGTypeLegalizer::PromoteIntRes_BITCAST(SDNode *N) {
     }
   }
 
-  if (!NOutVT.isVector() && InOp.getValueType().isVector()) {
+  // TODO: Handle big endian
+  if (!NOutVT.isVector() && InOp.getValueType().isVector() &&
+      DAG.getDataLayout().isLittleEndian()) {
     // Pad the vector operand with undef and cast to a wider integer.
     EVT EltVT = InOp.getValueType().getVectorElementType();
     TypeSize EltSize = EltVT.getSizeInBits();

Original file line number	Diff line number	Diff line change
`@@ -566,7 +566,9 @@ SDValue DAGTypeLegalizer::PromoteIntRes_BITCAST(SDNode *N) {`
`566`	`566`	`}`
`567`	`567`	`}`
`568`	`568`
`569`		`- if (!NOutVT.isVector() && InOp.getValueType().isVector()) {`
	`569`	`+ // TODO: Handle big endian`
	`570`	`+ if (!NOutVT.isVector() && InOp.getValueType().isVector() &&`
	`571`	`+ DAG.getDataLayout().isLittleEndian()) {`
`570`	`572`	`// Pad the vector operand with undef and cast to a wider integer.`
`571`	`573`	`EVT EltVT = InOp.getValueType().getVectorElementType();`
`572`	`574`	`TypeSize EltSize = EltVT.getSizeInBits();`