Mesa (master): st/mesa: don't lower_global_vars_to_local for VS if there are no dead inputs
GitLab Mirror
gitlab-mirror at kemper.freedesktop.org
Thu Oct 24 01:15:11 UTC 2019
Module: Mesa
Branch: master
Commit: eaffdad10820661172aa8808cc20c00bc928809e
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=eaffdad10820661172aa8808cc20c00bc928809e
Author: Marek Olšák <marek.olsak at amd.com>
Date: Tue Oct 22 15:32:17 2019 -0400
st/mesa: don't lower_global_vars_to_local for VS if there are no dead inputs
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
---
src/mesa/state_tracker/st_glsl_to_nir.cpp | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/src/mesa/state_tracker/st_glsl_to_nir.cpp b/src/mesa/state_tracker/st_glsl_to_nir.cpp
index 0e5bdaea59d..6ec14076b58 100644
--- a/src/mesa/state_tracker/st_glsl_to_nir.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_nir.cpp
@@ -86,6 +86,8 @@ st_nir_fixup_varying_slots(struct st_context *st, struct exec_list *var_list)
static void
st_nir_assign_vs_in_locations(nir_shader *nir)
{
+ bool removed_inputs = false;
+
nir->num_inputs = util_bitcount64(nir->info.inputs_read);
nir_foreach_variable_safe(var, &nir->inputs) {
/* NIR already assigns dual-slot inputs to two locations so all we have
@@ -107,8 +109,13 @@ st_nir_assign_vs_in_locations(nir_shader *nir)
exec_node_remove(&var->node);
var->data.mode = nir_var_shader_temp;
exec_list_push_tail(&nir->globals, &var->node);
+ removed_inputs = true;
}
}
+
+ /* Re-lower global vars, to deal with any dead VS inputs. */
+ if (removed_inputs)
+ NIR_PASS_V(nir, nir_lower_global_vars_to_local);
}
static int
@@ -846,8 +853,6 @@ st_nir_assign_varying_locations(struct st_context *st, nir_shader *nir)
if (nir->info.stage == MESA_SHADER_VERTEX) {
/* Needs special handling so drvloc matches the vbo state: */
st_nir_assign_vs_in_locations(nir);
- /* Re-lower global vars, to deal with any dead VS inputs. */
- NIR_PASS_V(nir, nir_lower_global_vars_to_local);
nir_assign_io_var_locations(&nir->outputs,
&nir->num_outputs,
More information about the mesa-commit
mailing list