Matt Arsenault 687ec75d10 DAG: Change behavior of fminnum/fmaxnum nodes ...

Introduce new versions that follow the IEEE semantics
to help with legalization that may need quieted inputs.

There are some regressions from inserting unnecessary
canonicalizes when these are matched from fast math
fcmp + select which should be fixed in a future commit.

llvm-svn: 344914

2018-10-22 16:27:27 +00:00

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