AMDGPU: Implement getLoadStoreVecRegBitWidth

llvm-svn: 274312
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h
index ea4f582..d7efaa5 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h
@@ -82,6 +82,7 @@
 
   unsigned getNumberOfRegisters(bool Vector);
   unsigned getRegisterBitWidth(bool Vector);
+  unsigned getLoadStoreVecRegBitWidth(unsigned AddrSpace);
   unsigned getMaxInterleaveFactor(unsigned VF);
 
   int getArithmeticInstrCost(