[PATCH] D157738: [OpenMP] Emit offloading entries for indirect target variables

[Jon Chesterfield via Phabricator via cfe-commits]

JonChesterfield added a comment.

> calling device functions via their associated host pointer

What does this mean? Defining a function foo such that the host and each individual target each have their own machine code for it, such that &foo can be copied over to the target and then invoked to mean call the function on the local target with the same name?

If so, calling through the pointer &foo on the GPU doing a logarithmic search through a table to choose a function address to branch to sounds like something that will codegen into very slow code. Does it do that search on every call?


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  https://reviews.llvm.org/D157738/new/

https://reviews.llvm.org/D157738