diff --git a/llvm/test/VISC/DNN_Benchmarks/benchmarks/alexnet/Makefile.back b/llvm/test/VISC/DNN_Benchmarks/benchmarks/alexnet/Makefile.back
deleted file mode 100644
index 14f3491a09c9d45a0fd5b0fa5e8ca5b47b9cf360..0000000000000000000000000000000000000000
--- a/llvm/test/VISC/DNN_Benchmarks/benchmarks/alexnet/Makefile.back
+++ /dev/null
@@ -1,77 +0,0 @@
-DNN_BENCHMARK_ROOT = $(LLVM_SRC_ROOT)/test/VISC/DNN_Benchmarks
-# NOTE: can configure build directory
-HPVM_BUILD_DIR = $(LLVM_BUILD_ROOT)
-
-CC = $(HPVM_BUILD_DIR)/bin/clang++
-OPT = $(HPVM_BUILD_DIR)/bin/opt
-LLVM_DIS = $(HPVM_BUILD_DIR)/bin/llvm-dis
-LLVM_LINK = $(HPVM_BUILD_DIR)/bin/llvm-link
-LLVM_INCLUDE_DIR = $(LLVM_SRC_ROOT)/include
-
-SRC_DIR = src
-BUILD_DIR = build
-APP = alexnet
-
-TENSOR_INCLUDE_DIR = $(DNN_BENCHMARK_ROOT)/common/include
-TENSOR_RT_INCLUDE_DIR = $(LLVM_SRC_ROOT)/projects/hpvm-tensor-rt/tensor_runtime/include
-TENSOR_LIB_DIR = $(LLVM_SRC_ROOT)/projects/hpvm-tensor-rt/lib/libtensor_runtime.a
-PROFILER_LIB_DIR = $(LLVM_SRC_ROOT)/projects/gpu_profiler/lib/libgpu_profiler.a
-SOC_SIMULATOR_LIB_DIR = $(LLVM_SRC_ROOT)/projects/soc_simulator/lib/libpromise_profiler.a
-TENSOR_AUTOTUNER_DIR = $(LLVM_SRC_ROOT)/projects/hpvm-tensor-rt/lib/libtensor_autotuner.a
-
-
-CC_FLAGS = -I $(LLVM_INCLUDE_DIR) -I $(TENSOR_INCLUDE_DIR) -I $(TENSOR_RT_INCLUDE_DIR) -I $(CUDA_INCLUDE_PATH)  -fno-exceptions -ffast-math -std=c++11 -O3
-CCFLAGS += -DDEVICE=CUDNN_TARGET
-LINKER_FLAGS = -lpthread -lcudart -lcurand -lcudnn -lcublas -lOpenCL
-
-HPVM_LIB_DIR = $(HPVM_BUILD_DIR)/lib
-
-
-VISC_OPTFLAGS = -load  $(HPVM_LIB_DIR)/LLVMBuildDFG.so -load $(HPVM_LIB_DIR)/LLVMInPlaceDFGAnalysis.so -load  $(HPVM_LIB_DIR)/LLVMDFG2LLVM_CUDNN.so -load  $(HPVM_LIB_DIR)/LLVMDFG2LLVM_X86.so -load  $(HPVM_LIB_DIR)/LLVMClearDFG.so -inplace -dfg2llvm-cudnn -dfg2llvm-x86 -clearDFG
-
-
-PROMISE_QUANT_FILE_PATH=$(LLVM_SRC_ROOT)/test/VISC/DNN_Benchmarks/benchmarks/$(APP)/data/quant_ranges.txt
-
-VISC_OPTFLAGS2 = -load  $(HPVM_LIB_DIR)/LLVMBuildDFG.so -load $(HPVM_LIB_DIR)/LLVMInPlaceDFGAnalysis.so -load  $(HPVM_LIB_DIR)/LLVMDFG2LLVM_PROMISE.so  -load  $(HPVM_LIB_DIR)/LLVMDFG2LLVM_CUDNN.so    -load  $(HPVM_LIB_DIR)/LLVMDFG2LLVM_X86.so -load  $(HPVM_LIB_DIR)/LLVMFuseHPVMTensorNodes.so  -load  $(HPVM_LIB_DIR)/LLVMClearDFG.so   -inplace -hpvm-fuse -dfg2llvm-promise  -quantization-levels-filename=$(PROMISE_QUANT_FILE_PATH) -dfg2llvm-cudnn  -dfg2llvm-x86 -clearDFG
-
-WRAPPER_API_QUANT_FILE_PATH=$(LLVM_SRC_ROOT)/test/VISC/DNN_Benchmarks/benchmarks/$(APP)/data/quant_ranges_rt.txt
-CONF_FILE_PATH=$(LLVM_SRC_ROOT)/test/VISC/DNN_Benchmarks/benchmarks/$(APP)/data/tuner_confs.txt
-
-VISC_OPTFLAGS3 = -load  $(HPVM_LIB_DIR)/LLVMBuildDFG.so -load $(HPVM_LIB_DIR)/LLVMInPlaceDFGAnalysis.so -load  $(HPVM_LIB_DIR)/LLVMDFG2LLVM_WrapperAPI.so    -load  $(HPVM_LIB_DIR)/LLVMDFG2LLVM_X86.so -load  $(HPVM_LIB_DIR)/LLVMFuseHPVMTensorNodes.so  -load  $(HPVM_LIB_DIR)/LLVMClearDFG.so   -inplace -hpvm-fuse -dfg2llvm-wrapperapi -quantization-levels-filename=$(WRAPPER_API_QUANT_FILE_PATH) -configuration-inputs-filename=$(CONF_FILE_PATH) -dfg2llvm-x86 -clearDFG
-
-
-TARGET = $(BUILD_DIR)/$(APP).opt.bc
-SOURCES = $(SRC_DIR)/$(APP).cpp
-VISC_RT_PATH = $(LLVM_SRC_ROOT)/../build/projects/visc-rt/visc-rt.ll
-
-#OBJS = $(BUILD_DIR)/$(wildcabrd *.ll)
-.PRECIOUS: $(BUILD_DIR)/$(APP).ll $(BUILD_DIR)/$(APP).visc.ll
-default: $(BUILD_DIR) $(TARGET)
-
-
-$(BUILD_DIR)/%.ll: $(SRC_DIR)/%.cpp
-	$(CC) $(CC_FLAGS) -emit-llvm src/$(APP).cpp -S -o  $(BUILD_DIR)/$(APP).ll  
-	$(CC) $(CC_FLAGS) -emit-llvm src/$(APP)_promise.cpp -S -o $(BUILD_DIR)/$(APP)_promise.ll
-	$(CC) $(CC_FLAGS) -emit-llvm src/$(APP)_loop.cpp -S -o  $(BUILD_DIR)/$(APP)_loop.ll  
-
-
-$(BUILD_DIR)/%.opt.bc: $(BUILD_DIR)/%.ll
-	$(OPT) -load LLVMGenVISC.so -genvisc -globaldce  $(BUILD_DIR)/$(APP).ll -S -o  $(BUILD_DIR)/$(APP).visc.ll
-	$(OPT) -load LLVMGenVISC.so -genvisc -globaldce  $(BUILD_DIR)/$(APP)_promise.ll -S -o  $(BUILD_DIR)/$(APP)_promise.visc.ll
-	$(OPT) -load LLVMGenVISC.so -genvisc -globaldce  $(BUILD_DIR)/$(APP)_loop.ll -S -o  $(BUILD_DIR)/$(APP)_loop.visc.ll
-	$(OPT) $(VISC_OPTFLAGS)  $(BUILD_DIR)/$(APP).visc.ll  -o  $(BUILD_DIR)/$(APP)_cudnn.bc
-	$(OPT) $(VISC_OPTFLAGS2) $(BUILD_DIR)/$(APP)_promise.visc.ll  -o  $(BUILD_DIR)/$(APP)_promise.bc
-	$(OPT) $(VISC_OPTFLAGS)  $(BUILD_DIR)/$(APP)_loop.visc.ll  -o  $(BUILD_DIR)/$(APP)_loop.bc
-	$(LLVM_LINK) $(BUILD_DIR)/$(APP)_cudnn.bc $(VISC_RT_PATH) -o $(BUILD_DIR)/$(APP)_cudnn_linked.bc
-	$(LLVM_LINK) $(BUILD_DIR)/$(APP)_promise.bc $(VISC_RT_PATH) -o $(BUILD_DIR)/$(APP)_promise_linked.bc
-	$(LLVM_LINK) $(BUILD_DIR)/$(APP)_loop.bc $(VISC_RT_PATH) -o $(BUILD_DIR)/$(APP)_loop_linked.bc
-	$(CC) $(BUILD_DIR)/$(APP)_cudnn_linked.bc $(TENSOR_LIB_DIR) $(PROFILER_LIB_DIR) $(SOC_SIMULATOR_LIB_DIR) -o $(BUILD_DIR)/$(APP)_cudnn_linked $(LINKER_FLAGS)
-	$(CC) $(BUILD_DIR)/$(APP)_promise_linked.bc $(TENSOR_LIB_DIR) $(PROFILER_LIB_DIR) $(SOC_SIMULATOR_LIB_DIR) -o $(BUILD_DIR)/$(APP)_promise_linked $(LINKER_FLAGS)
-	$(CC) $(BUILD_DIR)/$(APP)_loop_linked.bc $(TENSOR_LIB_DIR) $(PROFILER_LIB_DIR) $(SOC_SIMULATOR_LIB_DIR) -o $(BUILD_DIR)/$(APP)_loop_linked $(LINKER_FLAGS)
-	#$(CC) $(BUILD_DIR)/$(APP)_cudnn_linked.bc $(TENSOR_AUTOTUNER_DIR) -o $(BUILD_DIR)/lenet_tune $(LINKER_FLAGS)
-
-$(BUILD_DIR):
-	mkdir -p $@
-
-clean:
-	rm -rf $(BUILD_DIR)