Revert r116781 "- Add a hook for target to determine whether an instruction def

is", which breaks some nightly tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116816 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 14 deletions

diff --git a/include/llvm/Target/TargetInstrInfo.h b/include/llvm/Target/TargetInstrInfo.h
index 936345c..6615ee4 100644
--- a/include/llvm/Target/TargetInstrInfo.h
+++ b/include/llvm/Target/TargetInstrInfo.h
@@ -24,7 +24,6 @@ class InstrItineraryData;
 class LiveVariables;
 class MCAsmInfo;
 class MachineMemOperand;
-class MachineRegisterInfo;
 class MDNode;
 class MCInst;
 class SDNode;
@@ -626,19 +625,6 @@ public:
   int getOperandLatency(const InstrItineraryData *ItinData,
                         SDNode *DefNode, unsigned DefIdx,
                         SDNode *UseNode, unsigned UseIdx) const;
-
-  /// hasHighOperandLatency - Compute operand latency between a def of 'Reg'
-  /// and an use in the current loop, return true if the target considered
-  /// it 'high'. This is used by optimization passes such as machine LICM to
-  /// determine whether it makes sense to hoist an instruction out even in
-  /// high register pressure situation.
-  virtual
-  bool hasHighOperandLatency(const InstrItineraryData *ItinData,
-                             const MachineRegisterInfo *MRI,
-                             const MachineInstr *DefMI, unsigned DefIdx,
-                             const MachineInstr *UseMI, unsigned UseIdx) const {
-    return false;
-  }
 };
 
 /// TargetInstrInfoImpl - This is the default implementation of