Factor out the code to add a MachineOperand to a MachineInstrBuilder.

[oota-llvm.git] / lib / Target / PowerPC / PPCMachineFunctionInfo.h

diff --git a/lib/Target/PowerPC/PPCMachineFunctionInfo.h b/lib/Target/PowerPC/PPCMachineFunctionInfo.h
index b3e10176d2326a26279222d9135e060cb6720148..42883d78728eb463948322d5591ea2a77bcde0f1 100644 (file)
--- a/lib/Target/PowerPC/PPCMachineFunctionInfo.h
+++ b/lib/Target/PowerPC/PPCMachineFunctionInfo.h
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by James M. Laskey and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -26,15 +26,76 @@ private:
   /// stored.  Also used as an anchor for instructions that need to be altered
   /// when using frame pointers (dyna_add, dyna_sub.)
   int FramePointerSaveIndex;
+  
+  /// ReturnAddrSaveIndex - Frame index of where the return address is stored.
+  ///
+  int ReturnAddrSaveIndex;
+
+  /// MustSaveLR - Indicates whether LR is defined (or clobbered) in the current
+  /// function.  This is only valid after the initial scan of the function by
+  /// PEI.
+  bool MustSaveLR;
+
+  /// SpillsCR - Indicates whether CR is spilled in the current function.
+  bool SpillsCR;
+
+  /// LRStoreRequired - The bool indicates whether there is some explicit use of
+  /// the LR/LR8 stack slot that is not obvious from scanning the code.  This
+  /// requires that the code generator produce a store of LR to the stack on
+  /// entry, even though LR may otherwise apparently not be used.
+  bool LRStoreRequired;
+
+  /// MinReservedArea - This is the frame size that is at least reserved in a
+  /// potential caller (parameter+linkage area).
+  unsigned MinReservedArea;
+
+  /// TailCallSPDelta - Stack pointer delta used when tail calling. Maximum
+  /// amount the stack pointer is adjusted to make the frame bigger for tail
+  /// calls. Used for creating an area before the register spill area.
+  int TailCallSPDelta;
+
+  /// HasFastCall - Does this function contain a fast call. Used to determine
+  /// how the caller's stack pointer should be calculated (epilog/dynamicalloc).
+  bool HasFastCall;
 
 public:
-  PPCFunctionInfo(MachineFunction& MF) 
-  : FramePointerSaveIndex(0)
-  {}
+  PPCFunctionInfo(MachineFunction &MF) 
+    : FramePointerSaveIndex(0),
+      ReturnAddrSaveIndex(0),
+      SpillsCR(false),
+      LRStoreRequired(false),
+      MinReservedArea(0),
+      TailCallSPDelta(0),
+      HasFastCall(false) {}
 
   int getFramePointerSaveIndex() const { return FramePointerSaveIndex; }
   void setFramePointerSaveIndex(int Idx) { FramePointerSaveIndex = Idx; }
+  
+  int getReturnAddrSaveIndex() const { return ReturnAddrSaveIndex; }
+  void setReturnAddrSaveIndex(int idx) { ReturnAddrSaveIndex = idx; }
+
+  unsigned getMinReservedArea() const { return MinReservedArea; }
+  void setMinReservedArea(unsigned size) { MinReservedArea = size; }
+
+  int getTailCallSPDelta() const { return TailCallSPDelta; }
+  void setTailCallSPDelta(int size) { TailCallSPDelta = size; }
+
+  /// MustSaveLR - This is set when the prolog/epilog inserter does its initial
+  /// scan of the function. It is true if the LR/LR8 register is ever explicitly
+  /// defined/clobbered in the machine function (e.g. by calls and movpctolr,
+  /// which is used in PIC generation), or if the LR stack slot is explicitly
+  /// referenced by builtin_return_address.
+  void setMustSaveLR(bool U) { MustSaveLR = U; }
+  bool mustSaveLR() const    { return MustSaveLR; }
+
+  void setSpillsCR()       { SpillsCR = true; }
+  bool isCRSpilled() const { return SpillsCR; }
+
+  void setLRStoreRequired() { LRStoreRequired = true; }
+  bool isLRStoreRequired() const { return LRStoreRequired; }
 
+  void setHasFastCall() { HasFastCall = true; }
+  bool hasFastCall() const { return HasFastCall;}
 };
 
 } // end of namespace llvm