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11 * The above copyright notice and this permission notice (including the next
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
27 nir_opt_combine_memory_barriers_impl(
28 nir_function_impl
*impl
, nir_combine_memory_barrier_cb combine_cb
, void *data
)
30 bool progress
= false;
32 nir_foreach_block(block
, impl
) {
33 nir_intrinsic_instr
*prev
= NULL
;
35 nir_foreach_instr_safe(instr
, block
) {
36 if (instr
->type
!= nir_instr_type_intrinsic
) {
41 nir_intrinsic_instr
*current
= nir_instr_as_intrinsic(instr
);
42 if (current
->intrinsic
!= nir_intrinsic_scoped_barrier
||
43 nir_intrinsic_execution_scope(current
) != NIR_SCOPE_NONE
) {
48 if (prev
&& combine_cb(prev
, current
, data
)) {
49 nir_instr_remove(¤t
->instr
);
58 nir_metadata_preserve(impl
, nir_metadata_block_index
|
59 nir_metadata_dominance
|
60 nir_metadata_live_ssa_defs
);
62 nir_metadata_preserve(impl
, nir_metadata_all
);
68 /* Combine adjacent scoped memory barriers. */
70 nir_opt_combine_memory_barriers(
71 nir_shader
*shader
, nir_combine_memory_barrier_cb combine_cb
, void *data
)
75 bool progress
= false;
77 nir_foreach_function(function
, shader
) {
79 nir_opt_combine_memory_barriers_impl(function
->impl
, combine_cb
, data
)) {