On Aug 12, 2020, at 6:57 AM, Tom de Vries <tdevr...@suse.de> wrote: > > The nvptx target currently doesn't support effective target sync_int_long, > although it has support for 32-bit and 64-bit atomic. > > When enabling sync_int_long for nvptx, we run into a failure in > gcc.dg/pr86314.c: > ... > nvptx-run: error getting kernel result: operation not supported on \ > global/shared address space > ... > due to a ptx restriction: accesses to local memory are illegal, and the > test-case does an atomic operation on a stack address, which is mapped to > local memory. > > Fix this by adding a target sync_int_long_stack, wich returns false for nvptx, > which can be used to mark test-cases that require sync_int_long support for > stack address. > > Build on nvptx and tested with make check-gcc. > > OK for trunk?
Ok.
