Temporarily revert r104655 as it's breaking the bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104664 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/MachineFunction.h

@@ -114,13 +114,9 @@ class MachineFunction {
   ///
   unsigned FunctionNumber;
   
-  /// Alignment - The alignment of the function.
+  /// The alignment of the function.
   unsigned Alignment;
 
-  /// HasReturnsTwiceCall - Returns true if there's a call with a
-  /// "returns_twice" attribute, like setjmp.
-  bool HasReturnsTwiceCall;
-
   MachineFunction(const MachineFunction &); // DO NOT IMPLEMENT
   void operator=(const MachineFunction&);   // DO NOT IMPLEMENT
 public:
@@ -185,15 +181,6 @@ public:
   void EnsureAlignment(unsigned A) {
     if (Alignment < A) Alignment = A;
   }
-
-  /// hasReturnsTwiceCall - Returns true if there's a call with a
-  /// "returns_twice" attribute, like setjmp.
-  bool hasReturnsTwiceCall() const {
-    return HasReturnsTwiceCall;
-  }
-  void setReturnsTwiceCall(bool B) {
-    HasReturnsTwiceCall = B;
-  }
   
   /// getInfo - Keep track of various per-function pieces of information for
   /// backends that would like to do so.