On Mon, 24 Apr 2017, Liu Hao wrote:
Today I accidentally found the built-in function `__builtin_ia32_rdtscp()` on GCC6, but there is no documentation about it on <http://gcc.gnu.org/onlinedocs/gcc/x86-Built-in-Functions.html>. Is this an oversight?
I don't know if it is an oversight, but I think documenting the builtins is a bad idea, you are supposed to use the intrinsics instead, in this case __rdtscp, which is documented by Intel (and Microsoft).
-- Marc Glisse
