On 01/19/16 06:49, Thomas Schwinge wrote:
(One problem certainly might be that we're currently not doing any
register allocation for nvptx, as far as I remember based on the idea
that PTX is only a "virtual ISA", and the PTX JIT compiler would "fix
this up" for us -- which I'm not sure it actually is doing?)
My understanding is that the JIT compiler does register allocation.
int axis = get_oacc_ifn_dim_arg (call);
+ if (axis == GOMP_DIM_WORKER)
+ {
+ /* libgomp's nvptx plugin might potentially modify
+ dims[GOMP_DIM_WORKER]. */
+ return NULL_TREE;
+ }
this is almost certainly wrong. You're preventing constant folding in the
compiler.
nathan
