[Pass] RISCVEsp32P4MemIntrin src 16|8 align dst 16|8 align const size passed

Author: chenqian

llvm/lib/Target/RISCV/CMakeLists.txt

@@ -42,6 +42,7 @@ add_llvm_target(RISCVCodeGen
   RISCVSplitLoopByLength.cpp
   RISCVCustomLICM.cpp
   RISCVLoopUnrollAndRemainder.cpp
+  RISCVEsp32P4MemIntrin.cpp
   RISCVIndirectBranchTracking.cpp
   RISCVInsertVSETVLI.cpp
   RISCVInsertReadWriteCSR.cpp