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nir: gather shader_info::needs_all_helper_invocations

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Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7586>
This commit is contained in:
Marek Olšák 2020-09-21 20:35:06 -04:00 • committed by Marge Bot
parent baa5807e36
commit d5039f99b4
2 changed files with 34 additions and 0 deletions
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28
src/compiler/nir/nir_gather_info.c
View file

@ -533,6 +533,33 @@ gather_intrinsic_info(nir_intrinsic_instr *instr, nir_shader *shader,
shader->info.fs.needs_quad_helper_invocations = true;
break;
case nir_intrinsic_vote_any:
case nir_intrinsic_vote_all:
case nir_intrinsic_vote_feq:
case nir_intrinsic_vote_ieq:
case nir_intrinsic_ballot:
case nir_intrinsic_ballot_bit_count_exclusive:
case nir_intrinsic_ballot_bit_count_inclusive:
case nir_intrinsic_ballot_bitfield_extract:
case nir_intrinsic_ballot_bit_count_reduce:
case nir_intrinsic_ballot_find_lsb:
case nir_intrinsic_ballot_find_msb:
case nir_intrinsic_first_invocation:
case nir_intrinsic_read_invocation:
case nir_intrinsic_read_first_invocation:
case nir_intrinsic_elect:
case nir_intrinsic_reduce:
case nir_intrinsic_inclusive_scan:
case nir_intrinsic_exclusive_scan:
case nir_intrinsic_shuffle:
case nir_intrinsic_shuffle_xor:
case nir_intrinsic_shuffle_up:
case nir_intrinsic_shuffle_down:
case nir_intrinsic_write_invocation_amd:
if (shader->info.stage == MESA_SHADER_FRAGMENT)
shader->info.fs.needs_all_helper_invocations = true;
break;
case nir_intrinsic_end_primitive:
case nir_intrinsic_end_primitive_with_counter:
assert(shader->info.stage == MESA_SHADER_GEOMETRY);
@ -808,6 +835,7 @@ nir_shader_gather_info(nir_shader *shader, nir_function_impl *entrypoint)
shader->info.fs.color_is_dual_source = false;
shader->info.fs.uses_fbfetch_output = false;
shader->info.fs.needs_quad_helper_invocations = false;
shader->info.fs.needs_all_helper_invocations = false;
}
if (shader->info.stage == MESA_SHADER_TESS_CTRL) {
shader->info.tess.tcs_cross_invocation_inputs_read = 0;

6
src/compiler/shader_info.h
View file

@ -274,6 +274,12 @@ typedef struct shader_info {
*/
bool needs_quad_helper_invocations:1;
/**
* True if this fragment shader requires helper invocations for
* all subgroup operations, not just quad ops and derivatives.
*/
bool needs_all_helper_invocations:1;
/**
* Whether any inputs are declared with the "sample" qualifier.
*/