Add a Debug bit to MachineOperand, for uses that

are from debug info.  Add an iterator to MachineRegisterInfo
to skip Debug operands when walking the use list.  No
functional change yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95473 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 1 deletions

diff --git a/include/llvm/CodeGen/MachineInstrBuilder.h b/include/llvm/CodeGen/MachineInstrBuilder.h
index 8eb0add019..a263a9710e 100644
--- a/include/llvm/CodeGen/MachineInstrBuilder.h
+++ b/include/llvm/CodeGen/MachineInstrBuilder.h
@@ -32,6 +32,7 @@ namespace RegState {
     Dead           = 0x10,
     Undef          = 0x20,
     EarlyClobber   = 0x40,
+    Debug          = 0x80,
     ImplicitDefine = Implicit | Define,
     ImplicitKill   = Implicit | Kill
   };
@@ -62,7 +63,8 @@ public:
                                              flags & RegState::Dead,
                                              flags & RegState::Undef,
                                              flags & RegState::EarlyClobber,
-                                             SubReg));
+                                             SubReg,
+                                             flags & RegState::Debug));
     return *this;
   }