[PATCH] D11505: [NVPTX] convert pointers in byval kernel arguments to global

[Jingyue Wu]

jingyue created this revision.
jingyue added a reviewer: jholewinski.
jingyue added a subscriber: llvm-commits.
Herald added a subscriber: jholewinski.

For example, in

struct S {
  int *x;
  int *y;
};
__global__ void foo(S s) {
  int *b = s.y;
  // use b
}

"b" is guaranteed to point to global. NVPTX should emit ld.global/st.global for
accessing "b".

http://reviews.llvm.org/D11505

Files:
  lib/Target/NVPTX/NVPTXLowerKernelArgs.cpp
  test/CodeGen/NVPTX/lower-kernel-ptr-arg.ll

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