[libcxx-commits] [PATCH] D137513: [libc++] Replace __ppc64__ with __powerpc64__

[Daniel Kolesa via Phabricator via libcxx-commits]

q66 added a comment.

(this patch also accounts for glibc setups that use the real quad-precision ieee754 long doubles, which is possible since some time ago, natively in hardware starting with POWER9 - e.g. fedora defaults to that now, as far as i know - the logic here checks for two conditions - having a larger exponent indicates real ieee754 quad float as double-double's is identical to double, while having the same amount of mantissa digits indicates that long double is equal to double)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D137513/new/

https://reviews.llvm.org/D137513