Craig Topper 8452faceae [InstCombine] Add constant vector support to getMinimumFPType for visitFPTrunc. ...

This patch teaches getMinimumFPType to support shrinking a vector of ConstantFPs. This should improve our ability to combine vector fptrunc with fp binops.

Differential Revision: https://reviews.llvm.org/D43774

llvm-svn: 326729

2018-03-05 18:04:12 +00:00

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