[PATCH] D43914: Use addrspacecast instead of target-specific intrinsics in NVPTXGenericToNVVM.

[Justin Lebar via Phabricator via llvm-commits]

jlebar created this revision.
jlebar added a reviewer: tra.
Herald added subscribers: hiraditya, sanjoy, jholewinski.

NVPTXGenericToNVVM was using target-specific intrinsics to do address
space casts.  Using the addrspacecast instruction is (a lot) simpler.
But it also has the advantage of being understandable to other passes.
In particular, InferAddrSpaces is able to understand these address space
casts and remove them in most cases.


https://reviews.llvm.org/D43914

Files:
  llvm/lib/Target/NVPTX/NVPTXGenericToNVVM.cpp
  llvm/test/CodeGen/NVPTX/access-non-generic.ll
  llvm/test/CodeGen/NVPTX/generic-to-nvvm-ir.ll
  llvm/test/CodeGen/NVPTX/generic-to-nvvm.ll

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