tree 6f1ec17078f553ecfab4591ceaef5165f45adfd0
parent 5400980e1ed426a339073ed4e1ee48863a682a61
author Jingyue Wu <jingyue@google.com> 1433449178 +0000
committer Jingyue Wu <jingyue@google.com> 1433449178 +0000

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

Summary:
With this patch, NVPTXLowerKernelArgs converts a kernel pointer argument to a
pointer in the global address space. This change, along with
NVPTXFavorNonGenericAddrSpaces, allows the NVPTX backend to emit ld.global.*
and st.global.* for accessing kernel pointer arguments.

Minor changes:
1. refactor: extract function convertToPointerInAddrSpace
2. fix a bug in the test case in bug21465.ll

Test Plan: lower-kernel-ptr-arg.ll

Reviewers: eliben, meheff, jholewinski

Reviewed By: jholewinski

Subscribers: wengxt, jholewinski, llvm-commits

Differential Revision: http://reviews.llvm.org/D10154

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239082 91177308-0d34-0410-b5e6-96231b3b80d8