https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68081
--- Comment #2 from Jeffrey Walton <noloader at gmail dot com> --- (In reply to Andrew Pinski from comment #1) > Why are you using the builtin directly? You should be using the intrinsics > form instead. Its a cross product of (1) that's what the docs tell me to use for RDRAND and (2) lack of documentation for RDSEED. The doc I am referring to is http://gcc.gnu.org/onlinedocs/gcc/x86-Built-in-Functions.html#x86-Built-in-Functions lists. It tells me to use "__builtin_ia32_rdrand{16|32|64}_step" for RDRAND. But it does not tell me what to use for RDSEED. I made the leap I should use the *_rdseed variants for RDSEED. (My apologies for the literal read. If I should be doing something different, then I need to be told to do so :)
