Expand muls (all mulls!) to libcalls for now

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70751 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/MSP430/MSP430ISelLowering.cpp b/lib/Target/MSP430/MSP430ISelLowering.cpp
index 6cc5cd9ebe20d91e094fd406bc0cf67fbd50f032..64dffa9e93f7cd8fb187e4e95467833bdb6f4322 100644 (file)
--- a/lib/Target/MSP430/MSP430ISelLowering.cpp
+++ b/lib/Target/MSP430/MSP430ISelLowering.cpp
@@ -78,6 +78,13 @@ MSP430TargetLowering::MSP430TargetLowering(MSP430TargetMachine &tm) :
   setOperationAction(ISD::SELECT_CC,        MVT::Other, Expand);
   setOperationAction(ISD::SELECT,           MVT::i8,    Custom);
   setOperationAction(ISD::SELECT,           MVT::i16,   Custom);
+
+  // FIXME: Implement efficiently multiplication by a constant
+  setOperationAction(ISD::MUL,              MVT::i16,   Expand);
+  setOperationAction(ISD::MULHS,            MVT::i16,   Expand);
+  setOperationAction(ISD::MULHU,            MVT::i16,   Expand);
+  setOperationAction(ISD::SMUL_LOHI,        MVT::i16,   Expand);
+  setOperationAction(ISD::UMUL_LOHI,        MVT::i16,   Expand);
 }
 
 SDValue MSP430TargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) {