Add normal and trunc stores

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70724 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/MSP430/MSP430ISelLowering.cpp b/lib/Target/MSP430/MSP430ISelLowering.cpp
index bd0db9b..81494fc 100644
--- a/lib/Target/MSP430/MSP430ISelLowering.cpp
+++ b/lib/Target/MSP430/MSP430ISelLowering.cpp
@@ -39,6 +39,7 @@
   TargetLowering(tm), Subtarget(*tm.getSubtargetImpl()), TM(tm) {
 
   // Set up the register classes.
+  addRegisterClass(MVT::i8,  MSP430::GR8RegisterClass);
   addRegisterClass(MVT::i16, MSP430::GR16RegisterClass);
 
   // Compute derived properties from the register classes
@@ -59,6 +60,9 @@
   setLoadExtAction(ISD::SEXTLOAD, MVT::i8, Expand);
   setLoadExtAction(ISD::SEXTLOAD, MVT::i16, Expand);
 
+  // We don't have any truncstores
+  setTruncStoreAction(MVT::i16, MVT::i8, Expand);
+
   setOperationAction(ISD::SRA, MVT::i16, Custom);
   setOperationAction(ISD::RET, MVT::Other, Custom);
 }