Hi, all, I'm using GCC 4.8.2 on x86-64 machine. The compiler emits tzcnt instruction unlike previous gcc. I want to prevent using tzcnt instruction. As I know, tzcnt instruction is BMI extension. To disable the feature, I set -mno-bmi but it didn't work. Is there any way to disable tzcnt instruction? Thanks, Hanhwi -- View this message in context: http://gcc.1065356.n5.nabble.com/mno-bmi-doesn-t-work-in-GCC4-8-2-tp1059079.html Sent from the gcc - Help mailing list archive at Nabble.com.
