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| author | Jason Henline <jhen@google.com> | 2016-09-12 16:09:41 +0000 |
|---|---|---|
| committer | Jason Henline <jhen@google.com> | 2016-09-12 16:09:41 +0000 |
| commit | 57ea481945ffff7515b9bf3fe206f6c53ee8fd4a (patch) | |
| tree | 13dbb437d9b7e90523dedea8ee66c4d50c0aaa09 /llvm/lib/CodeGen/MachineInstr.cpp | |
| parent | b678219aa6263c88064cb1035d8f03b782c5885c (diff) | |
| download | llvm-57ea481945ffff7515b9bf3fe206f6c53ee8fd4a.zip llvm-57ea481945ffff7515b9bf3fe206f6c53ee8fd4a.tar.gz llvm-57ea481945ffff7515b9bf3fe206f6c53ee8fd4a.tar.bz2 | |
[SE] RegisteredHostMemory for async device copies
Summary:
Improve the error-prone interface that allows users to pass host
pointers that haven't been registered to asynchronous copy methods. In
CUDA, this is an extremely easy error to make, and instead of failing at
runtime, it succeeds and gives the right answers by turning the async
copy into a sync copy. So, you silently get a huge performance
degradation if you misuse the old interface. This new interface should
prevent that.
Reviewers: jlebar
Subscribers: jprice, beanz, parallel_libs-commits
Differential Revision: https://reviews.llvm.org/D24353
llvm-svn: 281225
Diffstat (limited to 'llvm/lib/CodeGen/MachineInstr.cpp')
0 files changed, 0 insertions, 0 deletions