First chunk of MachineInstr bundle support.

1. Added opcode BUNDLE
2. Taught MachineInstr class to deal with bundled MIs
3. Changed MachineBasicBlock iterator to skip over bundled MIs; added an iterator to walk all the MIs
4. Taught MachineBasicBlock methods about bundled MIs


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145975 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 1 deletions

diff --git a/include/llvm/Target/TargetOpcodes.h b/include/llvm/Target/TargetOpcodes.h
index 37f7b2f..f0b181e 100644
--- a/include/llvm/Target/TargetOpcodes.h
+++ b/include/llvm/Target/TargetOpcodes.h
@@ -82,7 +82,12 @@ namespace TargetOpcode {
 
     /// COPY - Target-independent register copy. This instruction can also be
     /// used to copy between subregisters of virtual registers.
-    COPY = 13
+    COPY = 13,
+
+    /// BUNDLE - This instruction represents an instruction bundle. Instructions
+    /// which immediately follow a BUNDLE instruction which are marked with
+    /// 'InsideBundle' flag are inside the bundle.
+    BUNDLE
   };
 } // end namespace TargetOpcode
 } // end namespace llvm