Fixing Integer overflow bug in Input reading routine

hpvm/test/dnn_benchmarks/include/tensorUtils.h

@@ -318,13 +318,13 @@ struct Tensor* readInputBatch(const char* file_name, int data_type,
 			      int start, int end,
 			      int dim2_size, int dim3_size, int dim4_size){
 
-  int dim1_size = end - start;
+  long int dim1_size = end - start;
   // FIXIT: Don't assume floating point types
-  int type_size = 4; // NOTE: Assuming floating point tensors
+  long int type_size = 4; // NOTE: Assuming floating point tensors
   long int num_elems = dim1_size * dim2_size * dim3_size * dim4_size;
   long int size_in_bytes = type_size * dim1_size * dim2_size * dim3_size * dim4_size;
   float* tensor_data = (float*) malloc(sizeof(float) * num_elems);
-  int file_header_size = type_size * start * dim2_size * dim3_size * dim4_size;
+  long int file_header_size = type_size * start * dim2_size * dim3_size * dim4_size;
   
   FILE* file = fopen(file_name, "rb");
   if(file == NULL){
@@ -335,9 +335,9 @@ struct Tensor* readInputBatch(const char* file_name, int data_type,
   fseek(file, file_header_size, SEEK_SET); // Skipping the file header
   size_t bytes_read = fread(tensor_data, 1, size_in_bytes, file);
 
-
   fclose(file);
-  
+
+  //printf ("FIXED input BATCH read \n");
   
   struct Tensor* weights = (struct Tensor*) create4DTensor(data_type, nchw, dim1_size, dim2_size,
 					                   dim3_size, dim4_size);