Remove dead code.

llvm-svn: 231883

2 files changed, 0 insertions, 25 deletions

diff --git a/llvm/lib/Target/ARM/ARMBaseRegisterInfo.cpp b/llvm/lib/Target/ARM/ARMBaseRegisterInfo.cpp
index 7574727c242..3a028ab905b 100644
--- a/llvm/lib/Target/ARM/ARMBaseRegisterInfo.cpp
+++ b/llvm/lib/Target/ARM/ARMBaseRegisterInfo.cpp
@@ -283,29 +283,6 @@ ARMBaseRegisterInfo::updateRegAllocHint(unsigned Reg, unsigned NewReg,
   }
 }
 
-bool
-ARMBaseRegisterInfo::avoidWriteAfterWrite(const TargetRegisterClass *RC) const {
-  // CortexA9 has a Write-after-write hazard for NEON registers.
-  if (!STI.isLikeA9())
-    return false;
-
-  switch (RC->getID()) {
-  case ARM::DPRRegClassID:
-  case ARM::DPR_8RegClassID:
-  case ARM::DPR_VFP2RegClassID:
-  case ARM::QPRRegClassID:
-  case ARM::QPR_8RegClassID:
-  case ARM::QPR_VFP2RegClassID:
-  case ARM::SPRRegClassID:
-  case ARM::SPR_8RegClassID:
-    // Avoid reusing S, D, and Q registers.
-    // Don't increase register pressure for QQ and QQQQ.
-    return true;
-  default:
-    return false;
-  }
-}
-
 bool ARMBaseRegisterInfo::hasBasePointer(const MachineFunction &MF) const {
   const MachineFrameInfo *MFI = MF.getFrameInfo();
   const ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
diff --git a/llvm/lib/Target/ARM/ARMBaseRegisterInfo.h b/llvm/lib/Target/ARM/ARMBaseRegisterInfo.h
index 17027c26c2a..da79d63d5c4 100644
--- a/llvm/lib/Target/ARM/ARMBaseRegisterInfo.h
+++ b/llvm/lib/Target/ARM/ARMBaseRegisterInfo.h
@@ -138,8 +138,6 @@ public:
   void updateRegAllocHint(unsigned Reg, unsigned NewReg,
                           MachineFunction &MF) const override;
 
-  bool avoidWriteAfterWrite(const TargetRegisterClass *RC) const override;
-
   bool hasBasePointer(const MachineFunction &MF) const;
 
   bool canRealignStack(const MachineFunction &MF) const;