Add an extra operand to LABEL nodes which distinguishes between debug, EH, or misc labels. This fixes the EH breakage. However I am not convinced this is *the* solution.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46609 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 0 deletions

diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h
index 5f3838787e..8b0931ac61 100644
--- a/include/llvm/CodeGen/MachineInstr.h
+++ b/include/llvm/CodeGen/MachineInstr.h
@@ -134,6 +134,10 @@ public:
     delete removeFromParent();
   }
 
+  /// isDebugLabel - Returns true if the MachineInstr represents a debug label.
+  ///
+  bool isDebugLabel() const;
+
   /// findRegisterUseOperandIdx() - Returns the operand index that is a use of
   /// the specific register or -1 if it is not found. It further tightening
   /// the search criteria to a use that kills the register if isKill is true.