[PowerPC] Don't commute trivial rlwimi instructions

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

diff --git a/lib/Target/PowerPC/PPCFrameLowering.h b/lib/Target/PowerPC/PPCFrameLowering.h
index e076b2539e92e4bb1466422fe021ef73c347a465..d6a389bfbf0d4f5d78aed2bf5944a17f0bfe2175 100644 (file)
--- a/lib/Target/PowerPC/PPCFrameLowering.h
+++ b/lib/Target/PowerPC/PPCFrameLowering.h
@@ -27,6 +27,7 @@ class PPCFrameLowering: public TargetFrameLowering {
   const unsigned TOCSaveOffset;
   const unsigned FramePointerSaveOffset;
   const unsigned LinkageSize;
+  const unsigned BasePointerSaveOffset;
 
 public:
   PPCFrameLowering(const PPCSubtarget &STI);
@@ -37,15 +38,15 @@ public:
 
   /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
   /// the function.
-  void emitPrologue(MachineFunction &MF) const override;
+  void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
 
   bool hasFP(const MachineFunction &MF) const override;
   bool needsFP(const MachineFunction &MF) const;
   void replaceFPWithRealFP(MachineFunction &MF) const;
 
-  void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
-                                     RegScavenger *RS = nullptr) const override;
+  void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
+                            RegScavenger *RS = nullptr) const override;
   void processFunctionBeforeFrameFinalized(MachineFunction &MF,
                                      RegScavenger *RS = nullptr) const override;
   void addScavengingSpillSlot(MachineFunction &MF, RegScavenger *RS) const;
@@ -83,15 +84,7 @@ public:
 
   /// getBasePointerSaveOffset - Return the previous frame offset to save the
   /// base pointer.
-  static unsigned getBasePointerSaveOffset(bool isPPC64,
-                                           bool isDarwinABI,
-                                           bool isPIC) {
-    if (isDarwinABI)
-      return isPPC64 ? -16U : -8U;
-
-    // SVR4 ABI: First slot in the general register save area.
-    return isPPC64 ? -16U : isPIC ? -12U : -8U;
-  }
+  unsigned getBasePointerSaveOffset() const { return BasePointerSaveOffset; }
 
   /// getLinkageSize - Return the size of the PowerPC ABI linkage area.
   ///