tree 16cc97b5f4e64ade6b8def5708c79502ae931a28
parent e2f554f2c4e15f8c0fbdecac76cd4f83f40fa88e
author Jon Chesterfield <jonathanchesterfield@gmail.com> 1615837821 +0000
committer Copybara-Service <copybara-worker@google.com> 1616071551 -0700

[libomptarget] Fix devicertl build

[libomptarget] Fix devicertl build

The target specific functions in target_interface are extern C, but the
implementations for nvptx were mostly C++ mangling. That worked out as
a quirk of DEVICE macro expanding to nothing, except for shuffle.h which
only forward declared the functions with C++ linkage.

Also implements GetWarpSize, as used by shuffle, and includes target_interface
in nvptx target_impl.cu to help catch future divergence between interface and
implementation.

Reviewed By: jdoerfert

Differential Revision: https://reviews.llvm.org/D98651

GitOrigin-RevId: bcb3f0f867b27179f9cab49d2ef41fe7769112c0