3 Commits

Author SHA1 Message Date
Joseph Huber
0dfe953294 [OpenMP] Change default visibility to protected for device declarations
This patch changes the special-case handling of visibility when
compiling for an OpenMP target offloading device. This was orignally
added as a precaution against the bug encountered in PR41826 when
symbols in the device were being preempted by shared library symbols.
This should instead be done by making the visibility protected by default.
With protected visibility we are asserting that the symbols on the device
will never be preempted or preempt another symbol pending a shared library
load.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D117806
2022-01-20 21:06:26 -05:00
Alexey Bataev
25b542c61f [OPENMP]Do not emit RTTI descriptor for NVPTX devices.
Need to disable emission of RTTI descriptors for NVPTX devices to be
able to use dynamic classes without unresolved symbols at link stage.
2020-01-16 18:12:50 -05:00
Alexey Bataev
a48600c0a6 [OPENMP]Do not emit special virtual function for NVPTX target.
There are no special virtual function handlers (like __cxa_pure_virtual)
defined for NVPTX target, so just emit such functions as null pointers
to prevent issues with linking and unresolved references.
2020-01-14 16:59:22 -05:00