Remove dead code.

[oota-llvm.git] / lib / Target / ARM / ARMBaseRegisterInfo.cpp

diff --git a/lib/Target/ARM/ARMBaseRegisterInfo.cpp b/lib/Target/ARM/ARMBaseRegisterInfo.cpp
index 7574727c242892b633640e857c34740da6ce6ee0..3a028ab905b29bc6352d97bd9b61453b437bd8e2 100644 (file)
--- a/lib/Target/ARM/ARMBaseRegisterInfo.cpp
+++ b/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>();