[LangRef] Clarify which fast-math flags affect fcmp.
authorEli Friedman <efriedma@codeaurora.org>
Tue, 17 Jul 2018 20:28:31 +0000 (20:28 +0000)
committerEli Friedman <efriedma@codeaurora.org>
Tue, 17 Jul 2018 20:28:31 +0000 (20:28 +0000)
commit8bb4326c04eebf68774cc07c32c0b93604be3597
tree5a464255b1ec11706e73a2b489e420bb612706db
parent83225b4075e032d9da9671fa676efb9a6c98e80e
[LangRef] Clarify which fast-math flags affect fcmp.

nsz has no effect due to the way fcmp is defined; +0 and -0 compare
equal anyway. reassoc could have the obvious effect.

llvm-svn: 337322
llvm/docs/LangRef.rst