trevor-m commented on a change in pull request #5857:
URL: https://github.com/apache/incubator-tvm/pull/5857#discussion_r443817236
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File path: src/target/source/codegen_opencl.cc
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@@ -70,6 +70,10 @@ std::string CodeGenOpenCL::Finish() {
"#endif\n\n";
}
+ // Enable atomic_add used by get_valid_counts. Only needed for OpenCL < 1.1.
Review comment:
Thanks @wpan11nv for reviewing! I touched on this in the description:
> Enable cl_khr_global_int32_base_atomics. This isn't required for OpenCL
1.1+ because atomic_add became a core feature. I'm happy to remove this if we
don't care about OpenCL 1.0. Alternatively we can override op->call_type ==
CallNode::PureExtern and set a flag to enable this only when atomic_add is
actually used.
I can definitely add a flag but it would require us to override
`VisitExpr()` for `CallNode::PureExtern` just to check if atomic_add is used.
Do you think I should do that?
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