Remove DisableTailCalls from TargetOptions and the code in resetTargetOptions

[oota-llvm.git] / include / llvm / CodeGen / LiveRangeEdit.h

diff --git a/include/llvm/CodeGen/LiveRangeEdit.h b/include/llvm/CodeGen/LiveRangeEdit.h
index 5767cab1a4dbc291d73dcfe40eba1f1882be8754..c97c636abbb4c95a2ae983f624f68ea7f14552bf 100644 (file)
--- a/include/llvm/CodeGen/LiveRangeEdit.h
+++ b/include/llvm/CodeGen/LiveRangeEdit.h
@@ -24,6 +24,7 @@
 #include "llvm/CodeGen/LiveInterval.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
 
 namespace llvm {
 
@@ -101,6 +102,10 @@ private:
   /// registers are created.
   void MRI_NoteNewVirtualRegister(unsigned VReg) override;
 
+  /// \brief Check if MachineOperand \p MO is a last use/kill either in the
+  /// main live range of \p LI or in one of the matching subregister ranges.
+  bool useIsKill(const LiveInterval &LI, const MachineOperand &MO) const;
+
 public:
   /// Create a LiveRangeEdit for breaking down parent into smaller pieces.
   /// @param parent The register being spilled or split.
@@ -111,20 +116,17 @@ public:
   /// @param vrm Map of virtual registers to physical registers for this
   ///            function.  If NULL, no virtual register map updates will
   ///            be done.  This could be the case if called before Regalloc.
-  LiveRangeEdit(LiveInterval *parent,
-                SmallVectorImpl<unsigned> &newRegs,
-                MachineFunction &MF,
-                LiveIntervals &lis,
-                VirtRegMap *vrm,
+  LiveRangeEdit(LiveInterval *parent, SmallVectorImpl<unsigned> &newRegs,
+                MachineFunction &MF, LiveIntervals &lis, VirtRegMap *vrm,
                 Delegate *delegate = nullptr)
-    : Parent(parent), NewRegs(newRegs),
-      MRI(MF.getRegInfo()), LIS(lis), VRM(vrm),
-      TII(*MF.getTarget().getInstrInfo()),
-      TheDelegate(delegate),
-      FirstNew(newRegs.size()),
-      ScannedRemattable(false) { MRI.setDelegate(this); }
-
-  ~LiveRangeEdit() { MRI.resetDelegate(this); }
+      : Parent(parent), NewRegs(newRegs), MRI(MF.getRegInfo()), LIS(lis),
+        VRM(vrm), TII(*MF.getSubtarget().getInstrInfo()),
+        TheDelegate(delegate), FirstNew(newRegs.size()),
+        ScannedRemattable(false) {
+    MRI.setDelegate(this);
+  }
+
+  ~LiveRangeEdit() override { MRI.resetDelegate(this); }
 
   LiveInterval &getParent() const {
    assert(Parent && "No parent LiveInterval");