'_mm_clwb' was not declared in this scope

[jacool1999]

After adding the following two files to the ./include/viper directory

Using the gcc -std=c++17 playground.cpp-I./include -o test.cpp command to compile viper, and encounter the following error

[lawben]

Sorry, I kinda lost track of this issue. If you are calling gcc directly, you need to add -mclwb to tell the compiler that it is available and you probably should also add -march=native to make sure the code is optimized for that architecture.