Jim, > As far as why the software loops are slower... > > Did any command line options change for compiling IntArgbPre.c? Touch the file and rebuild and verify if the compiler options are the same (and that both builds use the same compiler)...
To avoid all possible side effects, I deliberately tested Oracle Jdk (ea binary builds). I hope both were compiled with the same gcc & options. You're right: I guessed there was c macros, so I compared both java2d/folders too (including header files). I can try compiling both openjdk 8 & 9 sources on my laptop but it may take some time to test again. PS: I think it is better for me to focus on improving patch 4. Laurent
