isl_union_map *getCombinedScheduleForSpace(Scop *scop, unsigned dimLevel) {
isl_space *Space = scop->getParamSpace();
isl_union_map *schedule = isl_union_map_empty(Space);
for (Scop::iterator SI = scop->begin(), SE = scop->end(); SI != SE; ++SI) {
ScopStmt *Stmt = *SI;
unsigned remainingDimensions = Stmt->getNumScattering() - dimLevel;
isl_map *Scattering = isl_map_project_out(
Stmt->getScattering(), isl_dim_out, dimLevel, remainingDimensions);
schedule = isl_union_map_add_map(schedule, Scattering);
}
return schedule;
}
void IslScheduleOptimizer::extendScattering(Scop &S, unsigned NewDimensions) {
for (Scop::iterator SI = S.begin(), SE = S.end(); SI != SE; ++SI) {
ScopStmt *Stmt = *SI;
unsigned OldDimensions = Stmt->getNumScattering();
isl_space *Space;
isl_map *Map, *New;
Space = isl_space_alloc(Stmt->getIslCtx(), 0, OldDimensions, NewDimensions);
Map = isl_map_universe(Space);
for (unsigned i = 0; i < OldDimensions; i++)
Map = isl_map_equate(Map, isl_dim_in, i, isl_dim_out, i);
for (unsigned i = OldDimensions; i < NewDimensions; i++)
Map = isl_map_fix_si(Map, isl_dim_out, i, 0);
Map = isl_map_align_params(Map, S.getParamSpace());
New = isl_map_apply_range(Stmt->getScattering(), Map);
Stmt->setScattering(New);
}
}