silence read_no_write warning for vectorized buffer

python/dune/perftool/blockstructured/vectorization.py

@@ -4,7 +4,7 @@ import pymbolic.primitives as prim
 
 from loopy.match import Tagged, Id, Writes, Or
 
-from dune.perftool.generation import get_global_context_value, silenced_warning
+from dune.perftool.generation import get_global_context_value
 from dune.perftool.loopy.target import dtype_floatingpoint
 from dune.perftool.loopy.temporary import DuneTemporaryVariable
 from dune.perftool.loopy.symbolic import substitute
@@ -349,6 +349,7 @@ def add_iname_array(knl, vec_iname):
                                                              scope=lp.temp_var_scope.PRIVATE, dtype=np.float64,
                                                              base_storage=vec_iname + '_buff',
                                                              _base_storage_access_may_be_aliasing=True)
+        silenced_warning = ["read_no_write({})".format(vector_name)]
 
         new_insns = [lp.Assignment(assignee=prim.Subscript(prim.Variable(array_name), (prim.Variable(vec_iname),)),
                                    expression=prim.Variable(vec_iname),
@@ -366,7 +367,8 @@ def add_iname_array(knl, vec_iname):
                 new_insns.append(insn)
 
         knl = knl.copy(instructions=new_insns,
-                       temporary_variables=dict(**knl.temporary_variables, **new_temporaries),)
+                       temporary_variables=dict(**knl.temporary_variables, **new_temporaries),
+                       silenced_warnings=knl.silenced_warnings + silenced_warning)
 
         knl = lp.duplicate_inames(knl, [vec_iname], within=Id('init_{}_buffer'.format(vec_iname)))