Preliminary mul lowering
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75951 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/SystemZ/SystemZISelLowering.cpp b/lib/Target/SystemZ/SystemZISelLowering.cpp
index 54e3b9e..a5999fe 100644
--- a/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -72,6 +72,17 @@
setOperationAction(ISD::SELECT, MVT::i64, Expand);
setOperationAction(ISD::SELECT_CC, MVT::i32, Custom);
setOperationAction(ISD::SELECT_CC, MVT::i64, Custom);
+
+ // FIXME: We can lower this better
+ setOperationAction(ISD::MULHS, MVT::i32, Expand);
+ setOperationAction(ISD::MULHS, MVT::i64, Expand);
+ setOperationAction(ISD::MULHU, MVT::i32, Expand);
+ setOperationAction(ISD::MULHU, MVT::i64, Expand);
+
+ setOperationAction(ISD::SMUL_LOHI, MVT::i32, Expand);
+ setOperationAction(ISD::SMUL_LOHI, MVT::i64, Expand);
+ setOperationAction(ISD::UMUL_LOHI, MVT::i32, Expand);
+ setOperationAction(ISD::UMUL_LOHI, MVT::i64, Expand);
}
SDValue SystemZTargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) {