move target-independent opcodes out of TargetInstrInfo
into TargetOpcodes.h.  #include the new TargetOpcodes.h
into MachineInstr.  Add new inline accessors (like isPHI())
to MachineInstr, and start using them throughout the 
codebase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95687 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineLICM.cpp b/lib/CodeGen/MachineLICM.cpp
index ffcc8ab..92c84f3 100644
--- a/lib/CodeGen/MachineLICM.cpp
+++ b/lib/CodeGen/MachineLICM.cpp
@@ -336,7 +336,7 @@
   for (MachineRegisterInfo::use_iterator UI = RegInfo->use_begin(Reg),
          UE = RegInfo->use_end(); UI != UE; ++UI) {
     MachineInstr *UseMI = &*UI;
-    if (UseMI->getOpcode() == TargetInstrInfo::PHI)
+    if (UseMI->isPHI())
       return true;
   }
   return false;
@@ -363,7 +363,7 @@
 /// IsProfitableToHoist - Return true if it is potentially profitable to hoist
 /// the given loop invariant.
 bool MachineLICM::IsProfitableToHoist(MachineInstr &MI) {
-  if (MI.getOpcode() == TargetInstrInfo::IMPLICIT_DEF)
+  if (MI.isImplicitDef())
     return false;
 
   // FIXME: For now, only hoist re-materilizable instructions. LICM will