diff options
Diffstat (limited to 'src/compiler/glsl')
| -rw-r--r-- | src/compiler/glsl/ast_function.cpp | 46 |
1 files changed, 22 insertions, 24 deletions
diff --git a/src/compiler/glsl/ast_function.cpp b/src/compiler/glsl/ast_function.cpp index 9112eecb066..2be7a8c195d 100644 --- a/src/compiler/glsl/ast_function.cpp +++ b/src/compiler/glsl/ast_function.cpp @@ -363,31 +363,29 @@ copy_index_derefs_to_temps(ir_instruction *ir, void *data) ir = a->array->as_dereference(); ir_rvalue *idx = a->array_index; - if (idx->as_dereference_variable()) { - ir_variable *var = idx->variable_referenced(); + ir_variable *var = idx->variable_referenced(); - /* If the index is read only it cannot change so there is no need - * to copy it. - */ - if (var->data.read_only || var->data.memory_read_only) - return; - - ir_variable *tmp = new(d->mem_ctx) ir_variable(idx->type, "idx_tmp", - ir_var_temporary); - d->before_instructions->push_tail(tmp); - - ir_dereference_variable *const deref_tmp_1 = - new(d->mem_ctx) ir_dereference_variable(tmp); - ir_assignment *const assignment = - new(d->mem_ctx) ir_assignment(deref_tmp_1, - idx->clone(d->mem_ctx, NULL)); - d->before_instructions->push_tail(assignment); - - /* Replace the array index with a dereference of the new temporary */ - ir_dereference_variable *const deref_tmp_2 = - new(d->mem_ctx) ir_dereference_variable(tmp); - a->array_index = deref_tmp_2; - } + /* If the index is read only it cannot change so there is no need + * to copy it. + */ + if (!var || var->data.read_only || var->data.memory_read_only) + return; + + ir_variable *tmp = new(d->mem_ctx) ir_variable(idx->type, "idx_tmp", + ir_var_temporary); + d->before_instructions->push_tail(tmp); + + ir_dereference_variable *const deref_tmp_1 = + new(d->mem_ctx) ir_dereference_variable(tmp); + ir_assignment *const assignment = + new(d->mem_ctx) ir_assignment(deref_tmp_1, + idx->clone(d->mem_ctx, NULL)); + d->before_instructions->push_tail(assignment); + + /* Replace the array index with a dereference of the new temporary */ + ir_dereference_variable *const deref_tmp_2 = + new(d->mem_ctx) ir_dereference_variable(tmp); + a->array_index = deref_tmp_2; } } |