Add Triple::isAndroid().

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

diff --git a/lib/Target/PowerPC/PPCInstrInfo.h b/lib/Target/PowerPC/PPCInstrInfo.h
index f0d12a025e3ccc68dbe3fcc6679e5c7a217e2f55..da4585f2df4894003ea9b2e48b6341d2c2586606 100644 (file)
--- a/lib/Target/PowerPC/PPCInstrInfo.h
+++ b/lib/Target/PowerPC/PPCInstrInfo.h
@@ -79,6 +79,23 @@ class PPCInstrInfo : public PPCGenInstrInfo {
                             SmallVectorImpl<MachineInstr*> &NewMIs,
                             bool &NonRI, bool &SpillsVRS) const;
   virtual void anchor();
+
+protected:
+  /// Commutes the operands in the given instruction.
+  /// The commutable operands are specified by their indices OpIdx1 and OpIdx2.
+  ///
+  /// Do not call this method for a non-commutable instruction or for
+  /// non-commutable pair of operand indices OpIdx1 and OpIdx2.
+  /// Even though the instruction is commutable, the method may still
+  /// fail to commute the operands, null pointer is returned in such cases.
+  ///
+  /// For example, we can commute rlwimi instructions, but only if the
+  /// rotate amt is zero.  We also have to munge the immediates a bit.
+  MachineInstr *commuteInstructionImpl(MachineInstr *MI,
+                                       bool NewMI,
+                                       unsigned OpIdx1,
+                                       unsigned OpIdx2) const override;
+
 public:
   explicit PPCInstrInfo(PPCSubtarget &STI);
 
@@ -140,10 +157,6 @@ public:
   unsigned isStoreToStackSlot(const MachineInstr *MI,
                               int &FrameIndex) const override;
 
-  // commuteInstruction - We can commute rlwimi instructions, but only if the
-  // rotate amt is zero.  We also have to munge the immediates a bit.
-  MachineInstr *commuteInstruction(MachineInstr *MI, bool NewMI) const override;
-
   bool findCommutedOpIndices(MachineInstr *MI, unsigned &SrcOpIdx1,
                              unsigned &SrcOpIdx2) const override;