On 22/05/2019 23:21, Andrew Stubbs wrote:
Trampolines work just fine on GCN3 devices, but GCN5 devices have execute permission hardware, and the driver sets permission off for the private segment allocation in which the stacks are located.It may be possible to implement indirect calls to nested functions another way, but for now this will prevent unexplained crashes or hangs on unsupported devices.
This is now backported to gcc-9-branch. Andrew
