Add load and store instructions to Subzero bitcode reader.

src/IceTypes.h

Index: src/IceTypes.h
diff --git a/src/IceTypes.h b/src/IceTypes.h
index 2ce8f35af7c507b8319abf648d0be04070ff3884..4127104f0b564592de67cafc761f8de221f87535 100644
--- a/src/IceTypes.h
+++ b/src/IceTypes.h
@@ -58,6 +58,9 @@ bool isFloatingType(Type Ty); // scalar or vector
 bool isScalarFloatingType(Type Ty);
 bool isVectorFloatingType(Type Ty);
 
+/// Returns true if the given type can be used in a load instruction.
+bool isLoadStoreType(Type Ty);
+
 /// Returns type generated by applying the compare instructions (icmp and fcmp)
 /// to arguments of the given type. Returns IceType_void if compare is not
 /// allowed.