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b6f334a5b3
Taking address of a byval variable in PTX is legal, but currently runs into miscompilation by ptxas on sm_50+ (NVIDIA issue 1789042). Work around the issue by enforcing minimum alignment on byval arguments of device functions. The change is a no-op on SASS level for sm_3x where ptxas already aligns local copy by at least 4. Differential Revision: https://reviews.llvm.org/D22428 llvm-svn: 275893 |
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