Clang vs GCC - which produces faster binaries? [closed]

Answer 1

Basically speaking, the answer is: it depends. There are many many benchmarks focusing on different kinds of application.

My benchmark on my app is: gcc > icc > clang.

There are rare IO, but many CPU float and data structure operations.

compile flags is -Wall -g -DNDEBUG -O3.

https://github.com/zhangyafeikimi/ml-pack/blob/master/gbdt/profile/benchmark