[mips][msa] Added support for matching splati from normal IR (i.e. not intrinsics)

Updated some of the vshf since they (correctly) emit splati's now

llvm-svn: 191511
diff --git a/llvm/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp b/llvm/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp
index 2612e3b..7884589 100644
--- a/llvm/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp
+++ b/llvm/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp
@@ -184,6 +184,15 @@
     printOperand(MI, opNum, O);
 }
 
+void MipsInstPrinter::printUnsignedImm8(const MCInst *MI, int opNum,
+                                        raw_ostream &O) {
+  const MCOperand &MO = MI->getOperand(opNum);
+  if (MO.isImm())
+    O << (unsigned short int)(unsigned char)MO.getImm();
+  else
+    printOperand(MI, opNum, O);
+}
+
 void MipsInstPrinter::
 printMemOperand(const MCInst *MI, int opNum, raw_ostream &O) {
   // Load/Store memory operands -- imm($reg)