[PATCH] D43105: [RISCV] Enable __int128_t and uint128_t through clang flag

[Eli Friedman via Phabricator via cfe-commits]

efriedma added a comment.

So you want int128_t for compiler-rt itself, so you can use the soft-float implementation, but you want to make int128_t opt-in to avoid the possibility of someone getting a link error trying to link code built with clang against libgcc.a?  That seems a little convoluted, but I guess it's okay.

Not sure I like the name "-fuse-int128"; doesn't really indicate what it's doing.  Maybe "-fforce-enable-int128".


Repository:
  rC Clang

https://reviews.llvm.org/D43105