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When I recommitted r208640 (in r216898) I added an exclusion for TargetConstant offsets, as there is no guarantee that a backend can handle them on generic ADDs (even if it generates them during address-mode matching) -- and, specifically, applying this transformation directly with TargetConstants caused a self-hosting failure on PPC64. Ignoring all TargetConstants, however, is less than ideal. Instead, for non-opaque constants, we can convert them into regular constants for use with the generated ADD (or SUB). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216908 91177308-0d34-0410-b5e6-96231b3b80d8
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