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4 Commits

Author SHA1 Message Date
Sanjay Patel f3ae9cc33e [InstSimplify] use isKnownNeverNaN to fold more fcmp ord/uno 
Remove duplicate tests from InstCombine that were added with
D50582. I left negative tests there to verify that nothing
in InstCombine tries to go overboard. If isKnownNeverNaN is
improved to handle the FP binops or other cases, we should
have coverage under InstSimplify, so we could remove more
duplicate tests from InstCombine at that time.

llvm-svn: 340279
 2018-08-21 14:45:13 +00:00
Matt Arsenault 450fcc77a7 ValueTracking: Handle more instructions in isKnownNeverNaN 
llvm-svn: 340187
 2018-08-20 16:51:00 +00:00
Matt Arsenault ea4b476a30 ValueTracking: Add tests for isKnownNeverNaN 
llvm-svn: 340090
 2018-08-17 21:39:52 +00:00
Matt Arsenault d54b7f0592 ValueTracking: Start enhancing isKnownNeverNaN 
llvm-svn: 339399
 2018-08-09 22:40:08 +00:00