[Hexagon] Renaming old multiclass for removal.  Adding post-increment store classes and instruction defs.

llvm-svn: 224949
diff --git a/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp b/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp
index bbff6f6..4d52d77 100644
--- a/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp
@@ -1432,8 +1432,8 @@
     case Hexagon::STrib_indexed_shl_cNotPt_V4 :
     case Hexagon::STrib_cPt :
     case Hexagon::STrib_cNotPt :
-    case Hexagon::POST_STbri_cPt :
-    case Hexagon::POST_STbri_cNotPt :
+    case Hexagon::S2_pstorerbt_pi:
+    case Hexagon::S2_pstorerbf_pi:
     case Hexagon::STrid_indexed_cPt :
     case Hexagon::STrid_indexed_cNotPt :
     case Hexagon::STrid_indexed_shl_cPt_V4 :