glsl: small optimisation fix for uniform array resizing
authorTimothy Arceri <tarceri@itsqueeze.com>
Mon, 15 Jun 2020 04:25:21 +0000 (14:25 +1000)
committerMarge Bot <eric+marge@anholt.net>
Wed, 17 Jun 2020 01:06:27 +0000 (01:06 +0000)
The fix in the previous patch removed an erronous attempt to skip
resizing variable types in each stage. Now that has been removed
iterating over each shader stage is no longer required here.

Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5487>

src/compiler/glsl/gl_nir_link_uniforms.c

index 78fee5b75b485347bd099446c7e53d3e174bf208..270add9e08e81945d37d47e977037fdd70e8cff3 100644 (file)
@@ -97,7 +97,8 @@ uniform_storage_size(const struct glsl_type *type)
  */
 static void
 update_array_sizes(struct gl_shader_program *prog, nir_variable *var,
-                   struct hash_table **referenced_uniforms)
+                   struct hash_table **referenced_uniforms,
+                   unsigned current_var_stage)
 {
    /* For now we only resize 1D arrays.
     * TODO: add support for resizing more complex array types ??
@@ -160,19 +161,13 @@ update_array_sizes(struct gl_shader_program *prog, nir_variable *var,
                                   max_array_size, 0);
 
       /* Update the types of dereferences in case we changed any. */
-      for (unsigned stage = 0; stage < MESA_SHADER_STAGES; stage++) {
-         struct gl_linked_shader *sh = prog->_LinkedShaders[stage];
-         if (!sh)
-            continue;
-
-         struct hash_entry *entry =
-            _mesa_hash_table_search(referenced_uniforms[stage], var->name);
-         if (entry) {
-            struct uniform_array_info *ainfo =
-               (struct uniform_array_info *) entry->data;
-            util_dynarray_foreach(ainfo->deref_list, nir_deref_instr *, deref) {
-               (*deref)->type = var->type;
-            }
+      struct hash_entry *entry =
+         _mesa_hash_table_search(referenced_uniforms[current_var_stage], var->name);
+      if (entry) {
+         struct uniform_array_info *ainfo =
+            (struct uniform_array_info *) entry->data;
+         util_dynarray_foreach(ainfo->deref_list, nir_deref_instr *, deref) {
+            (*deref)->type = var->type;
          }
       }
    }
@@ -1522,7 +1517,7 @@ gl_nir_link_uniforms(struct gl_context *ctx,
 
          nir_shader *nir = sh->Program->nir;
          nir_foreach_variable(var, &nir->uniforms)
-            update_array_sizes(prog, var, state.referenced_uniforms);
+            update_array_sizes(prog, var, state.referenced_uniforms, stage);
       }
    }