[PATCH] D57359: [GlobalISel] Introduce a G_FSQRT generic instruction

[Amara Emerson via Phabricator via llvm-commits]

aemerson added a subscriber: spatel.
aemerson added a comment.

Uhhh...from what I can tell it looks like llvm.sqrt's semantics have been changed to match the libm semantics, except for errno.

@spatel can you confirm that the change from D39304 <https://reviews.llvm.org/D39304> indeed made llvm.sqrt(-x) == NaN?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D57359/new/

https://reviews.llvm.org/D57359