[X86] isFNEG - add recursion depth limit
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Fri, 11 Oct 2019 11:34:18 +0000 (11:34 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Fri, 11 Oct 2019 11:34:18 +0000 (11:34 +0000)
commit6434eac86086ed1dbeec873980d1fc9c1b0c895b
treed59394fe1d9decd87008cb86c5f0cc781b65b866
parentc8eb0547efc568ac688010961a5c19934caad4a2
[X86] isFNEG - add recursion depth limit

Now that its used by isNegatibleForFree we should try to avoid costly deep recursion

llvm-svn: 374534
llvm/lib/Target/X86/X86ISelLowering.cpp