[Feature:Plagiarism] Hash comparison compiler optimizations (#55)

Author: williamjallen

install_lichen.sh

@@ -52,7 +52,7 @@ mkdir -p ${lichen_installation_dir}/tools/assignments
 #--------------------
 # plaintext tool
 pushd ${lichen_repository_dir}  > /dev/null
-clang++ -I ${lichen_vendor_dir} -std=c++11 -Wall tokenizer/plaintext/plaintext_tokenizer.cpp -o ${lichen_installation_dir}/bin/plaintext_tokenizer.out
+clang++ -I ${lichen_vendor_dir} -std=c++11 -Wall -O3 tokenizer/plaintext/plaintext_tokenizer.cpp -o ${lichen_installation_dir}/bin/plaintext_tokenizer.out
 if [ $? -ne 0 ]; then
     echo -e "ERROR: FAILED TO BUILD PLAINTEXT TOKENIZER\n"
     exit 1
@@ -63,7 +63,7 @@ popd > /dev/null
 #-------------------------------------------
 # compile & install the hash comparison tool
 pushd ${lichen_repository_dir}  > /dev/null
-clang++ -I ${lichen_vendor_dir} -lboost_system -lboost_filesystem -Wall -g -std=c++11 -Wall compare_hashes/compare_hashes.cpp -o ${lichen_installation_dir}/bin/compare_hashes.out
+clang++ -I ${lichen_vendor_dir} -lboost_system -lboost_filesystem -Wall -Wextra -Werror -g -O3 -flto -funroll-loops -std=c++11 compare_hashes/compare_hashes.cpp -o ${lichen_installation_dir}/bin/compare_hashes.out
 if [ $? -ne 0 ]; then
     echo -e "ERROR: FAILED TO BUILD HASH COMPARISON TOOL\n"
     exit 1