[X86] Always generate precise CFA adjustments.

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

diff --git a/include/llvm/CodeGen/LiveRangeEdit.h b/include/llvm/CodeGen/LiveRangeEdit.h
index 44c3c4eaf7b174569ade68cdf5774c197d78451e..2271e3352aa27885f69b6c72e1a35e93a44f9e00 100644 (file)
--- a/include/llvm/CodeGen/LiveRangeEdit.h
+++ b/include/llvm/CodeGen/LiveRangeEdit.h
@@ -21,6 +21,7 @@
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/SetVector.h"
 #include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/CodeGen/LiveInterval.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/Target/TargetMachine.h"
@@ -28,7 +29,6 @@
 
 namespace llvm {
 
-class AliasAnalysis;
 class LiveIntervals;
 class MachineBlockFrequencyInfo;
 class MachineLoopInfo;
@@ -102,6 +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.
@@ -122,7 +126,7 @@ public:
     MRI.setDelegate(this);
   }
 
-  ~LiveRangeEdit() { MRI.resetDelegate(this); }
+  ~LiveRangeEdit() override { MRI.resetDelegate(this); }
 
   LiveInterval &getParent() const {
    assert(Parent && "No parent LiveInterval");