[PATCH] [NVPTX] kernel pointer arguments point to the global address space

[Jingyue Wu]

use addrspacecast instead of llvm.nvvm.ptr.gen.to.* intrinsics


http://reviews.llvm.org/D10154

Files:
  lib/Target/NVPTX/CMakeLists.txt
  lib/Target/NVPTX/NVPTX.h
  lib/Target/NVPTX/NVPTXLowerKernelArgs.cpp
  lib/Target/NVPTX/NVPTXLowerStructArgs.cpp
  lib/Target/NVPTX/NVPTXTargetMachine.cpp
  test/CodeGen/NVPTX/bug21465.ll
  test/CodeGen/NVPTX/call-with-alloca-buffer.ll
  test/CodeGen/NVPTX/lower-kernel-ptr-arg.ll
  test/CodeGen/NVPTX/pr13291-i1-store.ll
  test/CodeGen/NVPTX/surf-read-cuda.ll
  test/CodeGen/NVPTX/tex-read-cuda.ll

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