[PATCH] [NVPTXFavorNonGeneric] canonicalize global variable initializers

[Jingyue Wu]

Justin and I discussed this issue in http://reviews.llvm.org/D9063. The
conclusion is that, while Justin is working on a comprehensive fix which
can take a few days, I can workaround it by canonicalization as implemented
in this patch.

Anyway, this patch is incorrect because generic(<global var>+<const
offset>) is unacceptable by the NVIDIA driver. I already abandoned it.

Jingyue


http://reviews.llvm.org/D9204

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