Thanks Yury for https://gcc.gnu.org/ml/gcc-patches/2011-09/msg01440.html this link. It implements procedure reordering as linker plugin. I have some questions : 1 ) Can you point me to some documentation for "how to write plugin for linkers " I am I have not seen doc for structs with 'ld_' prefix (i.e defined in plugin-api.h ) 2 ) There is one more algorithm for Basic Block ordering with execution frequency count in PH paper . Is there any implementation available for it ?
Sincerely, Vivek
