[PATCH] D43970: [InstCombine] Allow fptrunc (fpext X)) to be reduced to a single fpext if the trunc result type is larger than the original size

Steve Canon via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Mar 1 14:02:15 PST 2018

scanon added a comment.

We should be able to go farther and just do a `fptrunc` if `SrcSize > DstSize`.


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