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/SlotIndexes.cpp b/lib/CodeGen/SlotIndexes.cpp
index a23efb2..e5a87f7 100644
--- a/lib/CodeGen/SlotIndexes.cpp
+++ b/lib/CodeGen/SlotIndexes.cpp
@@ -107,8 +107,8 @@
 
     for (MachineBasicBlock::iterator miItr = mbb->begin(), miEnd = mbb->end();
          miItr != miEnd; ++miItr) {
-      MachineInstr *mi = &*miItr;
-      if (mi->getOpcode()==TargetInstrInfo::DEBUG_VALUE)
+      MachineInstr *mi = miItr;
+      if (mi->isDebugValue())
         continue;
 
       if (miItr == mbb->getFirstTerminator()) {