ir.h revision 6e4852a3a5f3cbe52c53d91d343a37861f207563
1986b8f798272d3ae2898617c8fb089156a5941c0Ian Romanick/* -*- c++ -*- */ 2a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick/* 3a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Copyright © 2010 Intel Corporation 4a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 5a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Permission is hereby granted, free of charge, to any person obtaining a 6a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * copy of this software and associated documentation files (the "Software"), 7a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * to deal in the Software without restriction, including without limitation 8a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * and/or sell copies of the Software, and to permit persons to whom the 10a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Software is furnished to do so, subject to the following conditions: 11a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 12a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * The above copyright notice and this permission notice (including the next 13a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * paragraph) shall be included in all copies or substantial portions of the 14a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Software. 15a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 16a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * DEALINGS IN THE SOFTWARE. 23a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 24a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 25e309a6051d1a04ee581f0a47c6c585918fba1096Ian Romanick#pragma once 26e309a6051d1a04ee581f0a47c6c585918fba1096Ian Romanick#ifndef IR_H 27e309a6051d1a04ee581f0a47c6c585918fba1096Ian Romanick#define IR_H 28e309a6051d1a04ee581f0a47c6c585918fba1096Ian Romanick 29497baf4e4a6a0a2f247c7bfb9bf69a2b93c2c19fIan Romanick#include <stdio.h> 30497baf4e4a6a0a2f247c7bfb9bf69a2b93c2c19fIan Romanick#include <stdlib.h> 31ac95f2f8c88d39aaa878f61172d9748af13e2c80Eric Anholt 32d3073f58c17d8675a2ecdd5dfa83e5520c78e1a8Kenneth Graunke#include "ralloc.h" 3311d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick#include "glsl_types.h" 340044e7edcea22d2456c051a1c4b744a26960ad27Ian Romanick#include "list.h" 3578b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick#include "ir_visitor.h" 368895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick#include "ir_hierarchical_visitor.h" 37cf45949d6a896651a5f3864d3b195e26d59eee74Paul Berry#include "main/mtypes.h" 380044e7edcea22d2456c051a1c4b744a26960ad27Ian Romanick 39e053d62aa573651abdd78666d299272c8219a3aaIan Romanick/** 40e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * \defgroup IR Intermediate representation nodes 41e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * 42e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * @{ 43e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 44e053d62aa573651abdd78666d299272c8219a3aaIan Romanick 45e053d62aa573651abdd78666d299272c8219a3aaIan Romanick/** 46e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Class tags 47e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * 48e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Each concrete class derived from \c ir_instruction has a value in this 49e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * enumerant. The value for the type is stored in \c ir_instruction::ir_type 50e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * by the constructor. While using type tags is not very C++, it is extremely 51e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * convenient. For example, during debugging you can simply inspect 52e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * \c ir_instruction::ir_type to find out the actual type of the object. 53e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * 54e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * In addition, it is possible to use a switch-statement based on \c 55e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * \c ir_instruction::ir_type to select different behavior for different object 56e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * types. For functions that have only slight differences for several object 57e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * types, this allows writing very straightforward, readable code. 58e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 59d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholtenum ir_node_type { 60e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 61e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Zero is unused so that the IR validator can detect cases where 62e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * \c ir_instruction::ir_type has not been initialized. 63e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 64d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_unset, 65d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_variable, 66d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_assignment, 67d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_call, 68d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_constant, 69d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_dereference_array, 70d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_dereference_record, 71d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_dereference_variable, 72d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_discard, 73d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_expression, 74d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_function, 75d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_function_signature, 76d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_if, 77d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_loop, 78d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_loop_jump, 79d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_return, 80d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_swizzle, 81d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type_texture, 826dc89d221d43fad5f3edbb903997160af071bec0Brian Paul ir_type_max /**< maximum ir_type enum number, for validation */ 83d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt}; 84d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt 85a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick/** 86a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Base class of all IR instructions 87a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 880044e7edcea22d2456c051a1c4b744a26960ad27Ian Romanickclass ir_instruction : public exec_node { 89a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 90d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt enum ir_node_type ir_type; 91a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 92e46a454305af64710ce8deadafc718f75363ac7eEric Anholt /** ir_print_visitor helper for debugging. */ 934b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt void print(void) const; 94e46a454305af64710ce8deadafc718f75363ac7eEric Anholt 9578b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *) = 0; 968895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *) = 0; 978273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_instruction *clone(void *mem_ctx, 988273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt struct hash_table *ht) const = 0; 9978b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 10044e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke /** 10144e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * \name IR instruction downcast functions 10244e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * 10344e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * These functions either cast the object to a derived class or return 10444e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * \c NULL if the object's type does not match the specified derived class. 10544e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * Additional downcast functions will be added as needed. 10644e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke */ 10744e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke /*@{*/ 10844e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke virtual class ir_variable * as_variable() { return NULL; } 1096202cbfe3614141e330501959a7322522b35f4e4Kenneth Graunke virtual class ir_function * as_function() { return NULL; } 11044e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke virtual class ir_dereference * as_dereference() { return NULL; } 111b145e903694fa932ab1e0d955e889555193ab604Eric Anholt virtual class ir_dereference_array * as_dereference_array() { return NULL; } 112d4f7e660dd81e05b0829c1b70663b3959fd78f47Eric Anholt virtual class ir_dereference_variable *as_dereference_variable() { return NULL; } 1136d8a0a0aadaafbab02dffcf7f89eb0210dd37b2eEric Anholt virtual class ir_expression * as_expression() { return NULL; } 114fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke virtual class ir_rvalue * as_rvalue() { return NULL; } 11501f8de4a87157b01e8b9fe31c6766a15bbfb2788Ian Romanick virtual class ir_loop * as_loop() { return NULL; } 116cad9766118d269725ef33b4e9588d674d5225010Eric Anholt virtual class ir_assignment * as_assignment() { return NULL; } 117cad9766118d269725ef33b4e9588d674d5225010Eric Anholt virtual class ir_call * as_call() { return NULL; } 118cad9766118d269725ef33b4e9588d674d5225010Eric Anholt virtual class ir_return * as_return() { return NULL; } 1195ba94206083fcd678febd6cac0231f35c0f1b77aEric Anholt virtual class ir_if * as_if() { return NULL; } 1207d21104a8b92c139051e9a224c5d863802a8ade6Eric Anholt virtual class ir_swizzle * as_swizzle() { return NULL; } 1215c89f0ecb9581cbe83442ab3f41f2f3701fffab0Eric Anholt virtual class ir_constant * as_constant() { return NULL; } 1221eb7a81f2e43842acd59929ce65db2142b69134dKenneth Graunke virtual class ir_discard * as_discard() { return NULL; } 12344e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke /*@}*/ 12444e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke 125a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickprotected: 12644e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke ir_instruction() 127d27ec2461bca2625d09a3592ec8cc4137d4347f3Ian Romanick { 128d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type = ir_type_unset; 129d27ec2461bca2625d09a3592ec8cc4137d4347f3Ian Romanick } 130a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 131a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 132a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 133807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke/** 134807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke * The base class for all "values"/expression trees. 135807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke */ 136fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_rvalue : public ir_instruction { 137fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkepublic: 138f75c2d53146ea14f8dfedcc5b7a4704278ba0792Kenneth Graunke const struct glsl_type *type; 139f75c2d53146ea14f8dfedcc5b7a4704278ba0792Kenneth Graunke 140807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke virtual ir_rvalue *clone(void *mem_ctx, struct hash_table *) const; 141ca088cc277ce9f986693c857f3961dc0e1a4d91cIan Romanick 142807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke virtual void accept(ir_visitor *v) 143807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke { 144807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke v->visit(this); 145807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke } 146807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke 147807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke virtual ir_visitor_status accept(ir_hierarchical_visitor *); 148807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke 1496e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); 150fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 151fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke virtual ir_rvalue * as_rvalue() 152fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke { 153fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke return this; 154fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke } 155fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 15602939d643f878ce3a3dcd2e7b2c6f035c64ecda7Eric Anholt ir_rvalue *as_rvalue_to_saturate(); 15702939d643f878ce3a3dcd2e7b2c6f035c64ecda7Eric Anholt 158a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry virtual bool is_lvalue() const 159fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke { 160fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke return false; 161fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke } 162fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 1632b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick /** 1642b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick * Get the variable that is ultimately referenced by an r-value 1652b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick */ 166a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry virtual ir_variable *variable_referenced() const 1672b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick { 1682b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick return NULL; 1692b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick } 1702b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick 171b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick 172b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick /** 173b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * If an r-value is a reference to a whole variable, get that variable 174b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * 175b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * \return 176b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * Pointer to a variable that is completely dereferenced by the r-value. If 177b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * the r-value is not a dereference or the dereference does not access the 178b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * entire variable (i.e., it's just one array element, struct field), \c NULL 179b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * is returned. 180b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick */ 181b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick virtual ir_variable *whole_variable_referenced() 182b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick { 183b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick return NULL; 184b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick } 185b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick 186ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick /** 187ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * Determine if an r-value has the value zero 188ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * 189ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * The base implementation of this function always returns \c false. The 190ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * \c ir_constant class over-rides this function to return \c true \b only 191ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * for vector and scalar types that have all elements set to the value 192ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * zero (or \c false for booleans). 193ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * 1948e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * \sa ir_constant::has_value, ir_rvalue::is_one, ir_rvalue::is_negative_one 195ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick */ 196ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick virtual bool is_zero() const; 197ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick 198ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick /** 199ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * Determine if an r-value has the value one 200ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * 201ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * The base implementation of this function always returns \c false. The 202ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * \c ir_constant class over-rides this function to return \c true \b only 203ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * for vector and scalar types that have all elements set to the value 204ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * one (or \c true for booleans). 205ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * 2068e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * \sa ir_constant::has_value, ir_rvalue::is_zero, ir_rvalue::is_negative_one 207ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick */ 208ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick virtual bool is_one() const; 209ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick 2108e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick /** 2118e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * Determine if an r-value has the value negative one 2128e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * 2138e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * The base implementation of this function always returns \c false. The 2148e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * \c ir_constant class over-rides this function to return \c true \b only 2158e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * for vector and scalar types that have all elements set to the value 2168e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * negative one. For boolean times, the result is always \c false. 2178e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * 2188e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * \sa ir_constant::has_value, ir_rvalue::is_zero, ir_rvalue::is_one 2198e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick */ 2208e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick virtual bool is_negative_one() const; 2218e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick 222807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke 223807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke /** 224807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke * Return a generic value of error_type. 225807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke * 226807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke * Allocation will be performed with 'mem_ctx' as ralloc owner. 227807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke */ 228807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke static ir_rvalue *error_value(void *mem_ctx); 229807e967c615dc80a264af5a89af7649f95481744Kenneth Graunke 230fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeprotected: 2310a89175a35ba3ac2a94d0ba9bcc9926edc8927e3Kenneth Graunke ir_rvalue(); 232fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke}; 233fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 234fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 235e053d62aa573651abdd78666d299272c8219a3aaIan Romanick/** 236e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Variable storage classes 237e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 238a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickenum ir_variable_mode { 239e053d62aa573651abdd78666d299272c8219a3aaIan Romanick ir_var_auto = 0, /**< Function local variables and globals. */ 240e053d62aa573651abdd78666d299272c8219a3aaIan Romanick ir_var_uniform, /**< Variable declared as a uniform. */ 241a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_var_in, 242a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_var_out, 2437e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_var_inout, 244819d57fce94b20fa0d34da6f037f0a53c4a5bdc2Kenneth Graunke ir_var_const_in, /**< "in" param that must be a constant expression */ 2457ce186358e881d1e30eda716a8dea73d2dab2ee9Brian Paul ir_var_system_value, /**< Ex: front-face, instance-id, etc. */ 2467e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_var_temporary /**< Temporary variable generated during compilation. */ 247a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 248a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 2495fc57f471b10e74546f999269a2a8f9186da9731Chad Versace/** 2505fc57f471b10e74546f999269a2a8f9186da9731Chad Versace * \brief Layout qualifiers for gl_FragDepth. 2515fc57f471b10e74546f999269a2a8f9186da9731Chad Versace * 252b9eb4d8a59699e233255113acafae220c3d8fe3cKenneth Graunke * The AMD/ARB_conservative_depth extensions allow gl_FragDepth to be redeclared 2535fc57f471b10e74546f999269a2a8f9186da9731Chad Versace * with a layout qualifier. 2545fc57f471b10e74546f999269a2a8f9186da9731Chad Versace */ 2555fc57f471b10e74546f999269a2a8f9186da9731Chad Versaceenum ir_depth_layout { 2565fc57f471b10e74546f999269a2a8f9186da9731Chad Versace ir_depth_layout_none, /**< No depth layout is specified. */ 2575fc57f471b10e74546f999269a2a8f9186da9731Chad Versace ir_depth_layout_any, 2585fc57f471b10e74546f999269a2a8f9186da9731Chad Versace ir_depth_layout_greater, 2595fc57f471b10e74546f999269a2a8f9186da9731Chad Versace ir_depth_layout_less, 2605fc57f471b10e74546f999269a2a8f9186da9731Chad Versace ir_depth_layout_unchanged 2615fc57f471b10e74546f999269a2a8f9186da9731Chad Versace}; 2625fc57f471b10e74546f999269a2a8f9186da9731Chad Versace 2635fc57f471b10e74546f999269a2a8f9186da9731Chad Versace/** 2645fc57f471b10e74546f999269a2a8f9186da9731Chad Versace * \brief Convert depth layout qualifier to string. 2655fc57f471b10e74546f999269a2a8f9186da9731Chad Versace */ 2665fc57f471b10e74546f999269a2a8f9186da9731Chad Versaceconst char* 2675fc57f471b10e74546f999269a2a8f9186da9731Chad Versacedepth_layout_string(ir_depth_layout layout); 268fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 26989d81ab16c05818b290ed735c1343d3abde449bfIan Romanick/** 27089d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * Description of built-in state associated with a uniform 27189d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * 27289d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * \sa ir_variable::state_slots 27389d81ab16c05818b290ed735c1343d3abde449bfIan Romanick */ 27489d81ab16c05818b290ed735c1343d3abde449bfIan Romanickstruct ir_state_slot { 27589d81ab16c05818b290ed735c1343d3abde449bfIan Romanick int tokens[5]; 27689d81ab16c05818b290ed735c1343d3abde449bfIan Romanick int swizzle; 27789d81ab16c05818b290ed735c1343d3abde449bfIan Romanick}; 27889d81ab16c05818b290ed735c1343d3abde449bfIan Romanick 279a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickclass ir_variable : public ir_instruction { 280a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 2817e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_variable(const struct glsl_type *, const char *, ir_variable_mode); 282a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 2838273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_variable *clone(void *mem_ctx, struct hash_table *ht) const; 2844b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 28544e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke virtual ir_variable *as_variable() 28644e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke { 28744e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke return this; 28844e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke } 28944e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke 29078b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 29178b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 29278b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 29378b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 29478b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 2958895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 2968895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 2972d394d4877794d19756c3760d711524dca89f772Ian Romanick 298950ceb2bd60c25e7fecdff0fbcbf6e69015588f3Ian Romanick /** 299950ceb2bd60c25e7fecdff0fbcbf6e69015588f3Ian Romanick * Get the string value for the interpolation qualifier 300950ceb2bd60c25e7fecdff0fbcbf6e69015588f3Ian Romanick * 301046bef235744e891e4a48076e1a3ff9a61a63092Eric Anholt * \return The string that would be used in a shader to specify \c 302046bef235744e891e4a48076e1a3ff9a61a63092Eric Anholt * mode will be returned. 303046bef235744e891e4a48076e1a3ff9a61a63092Eric Anholt * 304c488150dea083a9677429b4185c6b20d7facd52bPaul Berry * This function is used to generate error messages of the form "shader 305c488150dea083a9677429b4185c6b20d7facd52bPaul Berry * uses %s interpolation qualifier", so in the case where there is no 306c488150dea083a9677429b4185c6b20d7facd52bPaul Berry * interpolation qualifier, it returns "no". 307c488150dea083a9677429b4185c6b20d7facd52bPaul Berry * 308046bef235744e891e4a48076e1a3ff9a61a63092Eric Anholt * This function should only be used on a shader input or output variable. 309950ceb2bd60c25e7fecdff0fbcbf6e69015588f3Ian Romanick */ 310950ceb2bd60c25e7fecdff0fbcbf6e69015588f3Ian Romanick const char *interpolation_string() const; 311950ceb2bd60c25e7fecdff0fbcbf6e69015588f3Ian Romanick 3128b80e9f9e3bc9ca41c95125826139471f73602c4Ian Romanick /** 313baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry * Determine how this variable should be interpolated based on its 314baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry * interpolation qualifier (if present), whether it is gl_Color or 315baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry * gl_SecondaryColor, and whether flatshading is enabled in the current GL 316baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry * state. 317baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry * 318baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry * The return value will always be either INTERP_QUALIFIER_SMOOTH, 319baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry * INTERP_QUALIFIER_NOPERSPECTIVE, or INTERP_QUALIFIER_FLAT. 320baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry */ 321baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry glsl_interp_qualifier determine_interpolation_mode(bool flat_shade); 322baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry 323baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry /** 324f75c2d53146ea14f8dfedcc5b7a4704278ba0792Kenneth Graunke * Declared type of the variable 325f75c2d53146ea14f8dfedcc5b7a4704278ba0792Kenneth Graunke */ 326f75c2d53146ea14f8dfedcc5b7a4704278ba0792Kenneth Graunke const struct glsl_type *type; 327f75c2d53146ea14f8dfedcc5b7a4704278ba0792Kenneth Graunke 328f75c2d53146ea14f8dfedcc5b7a4704278ba0792Kenneth Graunke /** 329e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Delcared name of the variable 330e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 331a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick const char *name; 332a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 333b8a21cc6df7e9da15a24ed3dbf60cd4aeb8effaaIan Romanick /** 334b8a21cc6df7e9da15a24ed3dbf60cd4aeb8effaaIan Romanick * Highest element accessed with a constant expression array index 335b8a21cc6df7e9da15a24ed3dbf60cd4aeb8effaaIan Romanick * 336b8a21cc6df7e9da15a24ed3dbf60cd4aeb8effaaIan Romanick * Not used for non-array variables. 337b8a21cc6df7e9da15a24ed3dbf60cd4aeb8effaaIan Romanick */ 338b8a21cc6df7e9da15a24ed3dbf60cd4aeb8effaaIan Romanick unsigned max_array_access; 339b8a21cc6df7e9da15a24ed3dbf60cd4aeb8effaaIan Romanick 340e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 341e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Is the variable read-only? 342e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * 343e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * This is set for variables declared as \c const, shader inputs, 344e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * and uniforms. 345e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 346a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned read_only:1; 347a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned centroid:1; 348a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned invariant:1; 349a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 350e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 351bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick * Has this variable been used for reading or writing? 352bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick * 353bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick * Several GLSL semantic checks require knowledge of whether or not a 354bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick * variable has been used. For example, it is an error to redeclare a 355bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick * variable as invariant after it has been used. 356f2475ca424f7e001be50f64dafa5700f6603d684Eric Anholt * 357f2475ca424f7e001be50f64dafa5700f6603d684Eric Anholt * This is only maintained in the ast_to_hir.cpp path, not in 358f2475ca424f7e001be50f64dafa5700f6603d684Eric Anholt * Mesa's fixed function or ARB program paths. 359bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick */ 360bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick unsigned used:1; 361bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick 362bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick /** 363f2475ca424f7e001be50f64dafa5700f6603d684Eric Anholt * Has this variable been statically assigned? 364f2475ca424f7e001be50f64dafa5700f6603d684Eric Anholt * 365f2475ca424f7e001be50f64dafa5700f6603d684Eric Anholt * This answers whether the variable was assigned in any path of 366f2475ca424f7e001be50f64dafa5700f6603d684Eric Anholt * the shader during ast_to_hir. This doesn't answer whether it is 367f2475ca424f7e001be50f64dafa5700f6603d684Eric Anholt * still written after dead code removal, nor is it maintained in 368f2475ca424f7e001be50f64dafa5700f6603d684Eric Anholt * non-ast_to_hir.cpp (GLSL parsing) paths. 369f2475ca424f7e001be50f64dafa5700f6603d684Eric Anholt */ 370f2475ca424f7e001be50f64dafa5700f6603d684Eric Anholt unsigned assigned:1; 371f2475ca424f7e001be50f64dafa5700f6603d684Eric Anholt 372f2475ca424f7e001be50f64dafa5700f6603d684Eric Anholt /** 373e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Storage class of the variable. 374e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * 375e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * \sa ir_variable_mode 376e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 377a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned mode:3; 378e053d62aa573651abdd78666d299272c8219a3aaIan Romanick 379e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 380e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Interpolation mode for shader inputs / outputs 381e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * 382e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * \sa ir_variable_interpolation 383e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 384a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned interpolation:2; 3859d975377ca6dae7805804c0fbe625bb7c5f9e095Ian Romanick 3869d975377ca6dae7805804c0fbe625bb7c5f9e095Ian Romanick /** 387e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * \name ARB_fragment_coord_conventions 388e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * @{ 389e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 3904a962170d7cf4243d6ae156fca20a6167388925dEric Anholt unsigned origin_upper_left:1; 3914a962170d7cf4243d6ae156fca20a6167388925dEric Anholt unsigned pixel_center_integer:1; 392e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /*@}*/ 3934a962170d7cf4243d6ae156fca20a6167388925dEric Anholt 394326c676236e6a3c90db63e4d0c893aa4f9c21876Eric Anholt /** 395eee68d3631813580a14fa51fda6f0c959279256cIan Romanick * Was the location explicitly set in the shader? 396eee68d3631813580a14fa51fda6f0c959279256cIan Romanick * 397eee68d3631813580a14fa51fda6f0c959279256cIan Romanick * If the location is explicitly set in the shader, it \b cannot be changed 398eee68d3631813580a14fa51fda6f0c959279256cIan Romanick * by the linker or by the API (e.g., calls to \c glBindAttribLocation have 399eee68d3631813580a14fa51fda6f0c959279256cIan Romanick * no effect). 400eee68d3631813580a14fa51fda6f0c959279256cIan Romanick */ 401eee68d3631813580a14fa51fda6f0c959279256cIan Romanick unsigned explicit_location:1; 4021256a5dcc86014d48bdc6fd10ea5a2fa11241667Dave Airlie unsigned explicit_index:1; 403eee68d3631813580a14fa51fda6f0c959279256cIan Romanick 404eee68d3631813580a14fa51fda6f0c959279256cIan Romanick /** 405f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick * Does this variable have an initializer? 406f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick * 407f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick * This is used by the linker to cross-validiate initializers of global 408f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick * variables. 409f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick */ 410f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick unsigned has_initializer:1; 411f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick 412f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick /** 41322af08b410f47227ea27b06cce097ccbe0130540Ian Romanick * \brief Layout qualifier for gl_FragDepth. 41422af08b410f47227ea27b06cce097ccbe0130540Ian Romanick * 41522af08b410f47227ea27b06cce097ccbe0130540Ian Romanick * This is not equal to \c ir_depth_layout_none if and only if this 41622af08b410f47227ea27b06cce097ccbe0130540Ian Romanick * variable is \c gl_FragDepth and a layout qualifier is specified. 41722af08b410f47227ea27b06cce097ccbe0130540Ian Romanick */ 41822af08b410f47227ea27b06cce097ccbe0130540Ian Romanick ir_depth_layout depth_layout; 41922af08b410f47227ea27b06cce097ccbe0130540Ian Romanick 42022af08b410f47227ea27b06cce097ccbe0130540Ian Romanick /** 42169a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * Storage location of the base of this variable 42269a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * 42369a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * The precise meaning of this field depends on the nature of the variable. 42469a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * 42569a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * - Vertex shader input: one of the values from \c gl_vert_attrib. 42669a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * - Vertex shader output: one of the values from \c gl_vert_result. 42769a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * - Fragment shader input: one of the values from \c gl_frag_attrib. 42869a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * - Fragment shader output: one of the values from \c gl_frag_result. 42969a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * - Uniforms: Per-stage uniform slot number. 43069a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * - Other: This field is not currently used. 43169a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * 43269a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * If the variable is a uniform, shader input, or shader output, and the 43369a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * slot has not been assigned, the value will be -1. 43469a079aee8f79104501faeb2a5092b643f956d33Ian Romanick */ 43569a079aee8f79104501faeb2a5092b643f956d33Ian Romanick int location; 43669a079aee8f79104501faeb2a5092b643f956d33Ian Romanick 43769a079aee8f79104501faeb2a5092b643f956d33Ian Romanick /** 438f8cf79936b42405a8366613b80e3bde21aadaa02Dave Airlie * output index for dual source blending. 439f8cf79936b42405a8366613b80e3bde21aadaa02Dave Airlie */ 440f8cf79936b42405a8366613b80e3bde21aadaa02Dave Airlie int index; 441f8cf79936b42405a8366613b80e3bde21aadaa02Dave Airlie 442f8cf79936b42405a8366613b80e3bde21aadaa02Dave Airlie /** 44389d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * Built-in state that backs this uniform 44489d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * 44589d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * Once set at variable creation, \c state_slots must remain invariant. 44689d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * This is because, ideally, this array would be shared by all clones of 44789d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * this variable in the IR tree. In other words, we'd really like for it 44889d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * to be a fly-weight. 44989d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * 45089d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * If the variable is not a uniform, \c num_state_slots will be zero and 45189d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * \c state_slots will be \c NULL. 45289d81ab16c05818b290ed735c1343d3abde449bfIan Romanick */ 45389d81ab16c05818b290ed735c1343d3abde449bfIan Romanick /*@{*/ 45489d81ab16c05818b290ed735c1343d3abde449bfIan Romanick unsigned num_state_slots; /**< Number of state slots used */ 45589d81ab16c05818b290ed735c1343d3abde449bfIan Romanick ir_state_slot *state_slots; /**< State descriptors. */ 45689d81ab16c05818b290ed735c1343d3abde449bfIan Romanick /*@}*/ 45789d81ab16c05818b290ed735c1343d3abde449bfIan Romanick 45889d81ab16c05818b290ed735c1343d3abde449bfIan Romanick /** 459c178c74c27ab292651dcf7da02a7d035366cae04Ian Romanick * Emit a warning if this variable is accessed. 460c178c74c27ab292651dcf7da02a7d035366cae04Ian Romanick */ 461c178c74c27ab292651dcf7da02a7d035366cae04Ian Romanick const char *warn_extension; 462c178c74c27ab292651dcf7da02a7d035366cae04Ian Romanick 463c178c74c27ab292651dcf7da02a7d035366cae04Ian Romanick /** 464326c676236e6a3c90db63e4d0c893aa4f9c21876Eric Anholt * Value assigned in the initializer of a variable declared "const" 465326c676236e6a3c90db63e4d0c893aa4f9c21876Eric Anholt */ 466326c676236e6a3c90db63e4d0c893aa4f9c21876Eric Anholt ir_constant *constant_value; 467f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick 468f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick /** 469f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick * Constant expression assigned in the initializer of the variable 470f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick * 471f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick * \warning 472f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick * This field and \c ::constant_value are distinct. Even if the two fields 473f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick * refer to constants with the same value, they must point to separate 474f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick * objects. 475f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick */ 476f37b1ad937dd2c420f4c9fd9aa5887942bd31f3fIan Romanick ir_constant *constant_initializer; 477a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 478a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 479a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 480a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick/*@{*/ 4819fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke/** 4829fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke * The representation of a function instance; may be the full definition or 4839fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke * simply a prototype. 4849fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke */ 485a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickclass ir_function_signature : public ir_instruction { 486894ea972a4defdaafeaa3a248c113b06c7ae0c7eEric Anholt /* An ir_function_signature will be part of the list of signatures in 487894ea972a4defdaafeaa3a248c113b06c7ae0c7eEric Anholt * an ir_function. 488894ea972a4defdaafeaa3a248c113b06c7ae0c7eEric Anholt */ 489a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 490e39cc69fa3cb830b803fe0c4f6c30915aa886b5bIan Romanick ir_function_signature(const glsl_type *return_type); 491a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 4928273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_function_signature *clone(void *mem_ctx, 4938273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt struct hash_table *ht) const; 49401a25bb64ecae156729794320f9a39733ff8eeaaKenneth Graunke ir_function_signature *clone_prototype(void *mem_ctx, 49501a25bb64ecae156729794320f9a39733ff8eeaaKenneth Graunke struct hash_table *ht) const; 4964b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 49778b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 49878b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 49978b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 50078b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 50178b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 5028895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 5038895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 504a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 5056e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert * Attempt to evaluate this function as a constant expression, 5066e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert * given a list of the actual parameters and the variable context. 5076e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert * Returns NULL for non-built-ins. 508d0fa0cb52cebdcd0ca483b9cd7af6be2f228b8dcKenneth Graunke */ 5096e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert ir_constant *constant_expression_value(exec_list *actual_parameters, struct hash_table *variable_context); 510d0fa0cb52cebdcd0ca483b9cd7af6be2f228b8dcKenneth Graunke 511d0fa0cb52cebdcd0ca483b9cd7af6be2f228b8dcKenneth Graunke /** 5120f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick * Get the name of the function for which this is a signature 5130f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick */ 5140f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick const char *function_name() const; 5150f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick 5160f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick /** 517df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * Get a handle to the function for which this is a signature 518df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * 519df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * There is no setter function, this function returns a \c const pointer, 520df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * and \c ir_function_signature::_function is private for a reason. The 521df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * only way to make a connection between a function and function signature 522df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * is via \c ir_function::add_signature. This helps ensure that certain 523df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * invariants (i.e., a function signature is in the list of signatures for 524df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * its \c _function) are met. 525df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * 526df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * \sa ir_function::add_signature 527df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick */ 528df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick inline const class ir_function *function() const 529df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick { 530df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick return this->_function; 531df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick } 532df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick 533df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick /** 534abd40b15210c17b2a3ba8fcffc868fda203efa01Kenneth Graunke * Check whether the qualifiers match between this signature's parameters 535abd40b15210c17b2a3ba8fcffc868fda203efa01Kenneth Graunke * and the supplied parameter list. If not, returns the name of the first 536abd40b15210c17b2a3ba8fcffc868fda203efa01Kenneth Graunke * parameter with mismatched qualifiers (for use in error messages). 537abd40b15210c17b2a3ba8fcffc868fda203efa01Kenneth Graunke */ 538abd40b15210c17b2a3ba8fcffc868fda203efa01Kenneth Graunke const char *qualifiers_match(exec_list *params); 539abd40b15210c17b2a3ba8fcffc868fda203efa01Kenneth Graunke 540abd40b15210c17b2a3ba8fcffc868fda203efa01Kenneth Graunke /** 541bff6013d469b3d4e54cdc5731801c56994a523ecKenneth Graunke * Replace the current parameter list with the given one. This is useful 542bff6013d469b3d4e54cdc5731801c56994a523ecKenneth Graunke * if the current information came from a prototype, and either has invalid 543bff6013d469b3d4e54cdc5731801c56994a523ecKenneth Graunke * or missing parameter names. 544bff6013d469b3d4e54cdc5731801c56994a523ecKenneth Graunke */ 545bff6013d469b3d4e54cdc5731801c56994a523ecKenneth Graunke void replace_parameters(exec_list *new_params); 546bff6013d469b3d4e54cdc5731801c56994a523ecKenneth Graunke 547bff6013d469b3d4e54cdc5731801c56994a523ecKenneth Graunke /** 548a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Function return type. 549a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 550a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * \note This discards the optional precision qualifier. 551a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 552a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick const struct glsl_type *return_type; 553a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 554a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 555f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt * List of ir_variable of function parameters. 556f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt * 557f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt * This represents the storage. The paramaters passed in a particular 558f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt * call will be in ir_call::actual_paramaters. 559a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 5600044e7edcea22d2456c051a1c4b744a26960ad27Ian Romanick struct exec_list parameters; 561a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 5629fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke /** Whether or not this function has a body (which may be empty). */ 5639fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke unsigned is_defined:1; 5646a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick 565f412fac5b46eb274cbed8e62234d5dbfd859f1feKenneth Graunke /** Whether or not this function signature is a built-in. */ 566f412fac5b46eb274cbed8e62234d5dbfd859f1feKenneth Graunke unsigned is_builtin:1; 567f412fac5b46eb274cbed8e62234d5dbfd859f1feKenneth Graunke 568894ea972a4defdaafeaa3a248c113b06c7ae0c7eEric Anholt /** Body of instructions in the function. */ 569894ea972a4defdaafeaa3a248c113b06c7ae0c7eEric Anholt struct exec_list body; 570894ea972a4defdaafeaa3a248c113b06c7ae0c7eEric Anholt 5716a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanickprivate: 5726a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick /** Function of which this signature is one overload. */ 573df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick class ir_function *_function; 5746a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick 5756a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick friend class ir_function; 576a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 577a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 578a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 579a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick/** 5809fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke * Header for tracking multiple overloaded functions with the same name. 5819fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke * Contains a list of ir_function_signatures representing each of the 5829fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke * actual functions. 583a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 584a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickclass ir_function : public ir_instruction { 585a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 586882dad75408fc4071a9dd700309f9e54f6ad2650Ian Romanick ir_function(const char *name); 587a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 5888273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_function *clone(void *mem_ctx, struct hash_table *ht) const; 5894b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 5906202cbfe3614141e330501959a7322522b35f4e4Kenneth Graunke virtual ir_function *as_function() 5916202cbfe3614141e330501959a7322522b35f4e4Kenneth Graunke { 5926202cbfe3614141e330501959a7322522b35f4e4Kenneth Graunke return this; 5936202cbfe3614141e330501959a7322522b35f4e4Kenneth Graunke } 5946202cbfe3614141e330501959a7322522b35f4e4Kenneth Graunke 59578b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 59678b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 59778b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 59878b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 59978b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 6008895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 6018895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 6026a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick void add_signature(ir_function_signature *sig) 6036a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick { 604df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick sig->_function = this; 605df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick this->signatures.push_tail(sig); 6066a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick } 6076a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick 608a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 60995cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick * Get an iterator for the set of function signatures 61095cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick */ 61195cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick exec_list_iterator iterator() 61295cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick { 61395cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick return signatures.iterator(); 61495cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick } 61595cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick 61695cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick /** 6170d605cb97c9cd2f9a170e3aa15bdf4021a75fc14Kenneth Graunke * Find a signature that matches a set of actual parameters, taking implicit 618861d0a5e12b1baa31211cb8aff983b8fb9b97482Kenneth Graunke * conversions into account. Also flags whether the match was exact. 619861d0a5e12b1baa31211cb8aff983b8fb9b97482Kenneth Graunke */ 620861d0a5e12b1baa31211cb8aff983b8fb9b97482Kenneth Graunke ir_function_signature *matching_signature(const exec_list *actual_param, 621861d0a5e12b1baa31211cb8aff983b8fb9b97482Kenneth Graunke bool *match_is_exact); 622861d0a5e12b1baa31211cb8aff983b8fb9b97482Kenneth Graunke 623861d0a5e12b1baa31211cb8aff983b8fb9b97482Kenneth Graunke /** 624861d0a5e12b1baa31211cb8aff983b8fb9b97482Kenneth Graunke * Find a signature that matches a set of actual parameters, taking implicit 6250d605cb97c9cd2f9a170e3aa15bdf4021a75fc14Kenneth Graunke * conversions into account. 626471471f83471481db0445e73f8c89e6a9149838eIan Romanick */ 627b95897b89d36a25c237a021c299a4eb295856476Ian Romanick ir_function_signature *matching_signature(const exec_list *actual_param); 628471471f83471481db0445e73f8c89e6a9149838eIan Romanick 629471471f83471481db0445e73f8c89e6a9149838eIan Romanick /** 6300d605cb97c9cd2f9a170e3aa15bdf4021a75fc14Kenneth Graunke * Find a signature that exactly matches a set of actual parameters without 6310d605cb97c9cd2f9a170e3aa15bdf4021a75fc14Kenneth Graunke * any implicit type conversions. 6320d605cb97c9cd2f9a170e3aa15bdf4021a75fc14Kenneth Graunke */ 633b95897b89d36a25c237a021c299a4eb295856476Ian Romanick ir_function_signature *exact_matching_signature(const exec_list *actual_ps); 6340d605cb97c9cd2f9a170e3aa15bdf4021a75fc14Kenneth Graunke 6350d605cb97c9cd2f9a170e3aa15bdf4021a75fc14Kenneth Graunke /** 636a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Name of the function. 637a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 638a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick const char *name; 639a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 64081f03393982c29f8f4165b5629c8e8fb708b97a3Kenneth Graunke /** Whether or not this function has a signature that isn't a built-in. */ 64181f03393982c29f8f4165b5629c8e8fb708b97a3Kenneth Graunke bool has_user_signature(); 642b6f15869b324ae64a00d0fe46fa3c8c62c1edb6cKenneth Graunke 643471471f83471481db0445e73f8c89e6a9149838eIan Romanick /** 644f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt * List of ir_function_signature for each overloaded function with this name. 645471471f83471481db0445e73f8c89e6a9149838eIan Romanick */ 6460044e7edcea22d2456c051a1c4b744a26960ad27Ian Romanick struct exec_list signatures; 647a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 6480f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick 6490f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanickinline const char *ir_function_signature::function_name() const 6500f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick{ 651df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick return this->_function->name; 6520f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick} 653a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick/*@}*/ 654a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 655a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 6563c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick/** 6573c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick * IR instruction representing high-level if-statements 6583c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick */ 6593c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanickclass ir_if : public ir_instruction { 6603c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanickpublic: 6613c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick ir_if(ir_rvalue *condition) 6623c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick : condition(condition) 6633c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick { 664d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type = ir_type_if; 6653c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick } 6663c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick 6678273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_if *clone(void *mem_ctx, struct hash_table *ht) const; 6684b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 6695ba94206083fcd678febd6cac0231f35c0f1b77aEric Anholt virtual ir_if *as_if() 6705ba94206083fcd678febd6cac0231f35c0f1b77aEric Anholt { 6715ba94206083fcd678febd6cac0231f35c0f1b77aEric Anholt return this; 6725ba94206083fcd678febd6cac0231f35c0f1b77aEric Anholt } 6735ba94206083fcd678febd6cac0231f35c0f1b77aEric Anholt 6743c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick virtual void accept(ir_visitor *v) 6753c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick { 6763c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick v->visit(this); 6773c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick } 6783c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick 6798895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 6808895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 6813c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick ir_rvalue *condition; 682f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt /** List of ir_instruction for the body of the then branch */ 6833c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick exec_list then_instructions; 684f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt /** List of ir_instruction for the body of the else branch */ 6853c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick exec_list else_instructions; 6863c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick}; 6873c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick 6883c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick 689fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick/** 690fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick * IR instruction representing a high-level loop structure. 691fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick */ 692fad607a9be59056aecda50176b4d20a8b5319747Ian Romanickclass ir_loop : public ir_instruction { 693fad607a9be59056aecda50176b4d20a8b5319747Ian Romanickpublic: 6943b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick ir_loop(); 695fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick 6968273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_loop *clone(void *mem_ctx, struct hash_table *ht) const; 6974b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 698fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick virtual void accept(ir_visitor *v) 699fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick { 700fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick v->visit(this); 701fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick } 702fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick 7038895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 7048895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 70501f8de4a87157b01e8b9fe31c6766a15bbfb2788Ian Romanick virtual ir_loop *as_loop() 70601f8de4a87157b01e8b9fe31c6766a15bbfb2788Ian Romanick { 70701f8de4a87157b01e8b9fe31c6766a15bbfb2788Ian Romanick return this; 70801f8de4a87157b01e8b9fe31c6766a15bbfb2788Ian Romanick } 70901f8de4a87157b01e8b9fe31c6766a15bbfb2788Ian Romanick 710fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick /** 711fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick * Get an iterator for the instructions of the loop body 712fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick */ 713fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick exec_list_iterator iterator() 714fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick { 715fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick return body_instructions.iterator(); 716fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick } 717fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick 718f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt /** List of ir_instruction that make up the body of the loop. */ 719fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick exec_list body_instructions; 720fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick 721fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick /** 722fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick * \name Loop counter and controls 7233b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * 7243b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * Represents a loop like a FORTRAN \c do-loop. 7253b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * 7263b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * \note 7273b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * If \c from and \c to are the same value, the loop will execute once. 728fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick */ 729fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick /*@{*/ 7303b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick ir_rvalue *from; /** Value of the loop counter on the first 7313b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * iteration of the loop. 7323b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick */ 7333b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick ir_rvalue *to; /** Value of the loop counter on the last 7343b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * iteration of the loop. 7353b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick */ 736fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick ir_rvalue *increment; 737fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick ir_variable *counter; 7383b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick 7393b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick /** 7403b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * Comparison operation in the loop terminator. 7413b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * 7423b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * If any of the loop control fields are non-\c NULL, this field must be 7433b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * one of \c ir_binop_less, \c ir_binop_greater, \c ir_binop_lequal, 7443b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * \c ir_binop_gequal, \c ir_binop_equal, or \c ir_binop_nequal. 7453b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick */ 7463b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick int cmp; 747fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick /*@}*/ 748fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick}; 749fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick 750fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick 7513c033637de7def553559c11d037f2e8bbb750f77Kenneth Graunkeclass ir_assignment : public ir_instruction { 752a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 753e617a53a74cd27a322fd2dd05ff1c66c6437fde3Eric Anholt ir_assignment(ir_rvalue *lhs, ir_rvalue *rhs, ir_rvalue *condition = NULL); 754a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 7555a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick /** 7565a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * Construct an assignment with an explicit write mask 7575a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * 7585a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * \note 7595a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * Since a write mask is supplied, the LHS must already be a bare 7605a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * \c ir_dereference. The cannot be any swizzles in the LHS. 7615a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick */ 7625a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick ir_assignment(ir_dereference *lhs, ir_rvalue *rhs, ir_rvalue *condition, 7635a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick unsigned write_mask); 7645a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick 7658273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_assignment *clone(void *mem_ctx, struct hash_table *ht) const; 7664b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 7676e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); 768fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 76978b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 77078b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 77178b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 77278b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 77378b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 7748895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 7758895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 776cad9766118d269725ef33b4e9588d674d5225010Eric Anholt virtual ir_assignment * as_assignment() 777cad9766118d269725ef33b4e9588d674d5225010Eric Anholt { 778cad9766118d269725ef33b4e9588d674d5225010Eric Anholt return this; 779cad9766118d269725ef33b4e9588d674d5225010Eric Anholt } 780cad9766118d269725ef33b4e9588d674d5225010Eric Anholt 781a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 7825a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * Get a whole variable written by an assignment 7835a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * 7845a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * If the LHS of the assignment writes a whole variable, the variable is 7855a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * returned. Otherwise \c NULL is returned. Examples of whole-variable 7865a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * assignment are: 7875a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * 7885a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * - Assigning to a scalar 7895a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * - Assigning to all components of a vector 7905a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * - Whole array (or matrix) assignment 7915a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * - Whole structure assignment 7925a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick */ 7935a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick ir_variable *whole_variable_written(); 7945a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick 7955a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick /** 7965a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * Set the LHS of an assignment 7975a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick */ 7985a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick void set_lhs(ir_rvalue *lhs); 7995a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick 8005a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick /** 801a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Left-hand side of the assignment. 8025a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * 8035a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * This should be treated as read only. If you need to set the LHS of an 8045a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * assignment, use \c ir_assignment::set_lhs. 805a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 8065a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick ir_dereference *lhs; 807a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 808a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 809a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Value being assigned 810a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 811fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *rhs; 812a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 813a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 814a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Optional condition for the assignment. 815a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 816fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *condition; 8175a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick 8185a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick 8195a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick /** 8205a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * Component mask written 8215a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * 8225a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * For non-vector types in the LHS, this field will be zero. For vector 8235a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * types, a bit will be set for each component that is written. Note that 8245a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * for \c vec2 and \c vec3 types only the lower bits will ever be set. 825b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * 826b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * A partially-set write mask means that each enabled channel gets 827b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * the value from a consecutive channel of the rhs. For example, 828b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * to write just .xyw of gl_FrontColor with color: 829b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * 830b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * (assign (constant bool (1)) (xyw) 831b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * (var_ref gl_FragColor) 832b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * (swiz xyw (var_ref color))) 8335a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick */ 8345a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick unsigned write_mask:4; 835a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 836a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 8373b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke/* Update ir_expression::num_operands() and operator_strs when 838160d092507c1ca341b7c5c88e5ba94b4cf5fb7d0Eric Anholt * updating this list. 8393b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke */ 840a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickenum ir_expression_operation { 841a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_bit_not, 842a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_logic_not, 843a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_neg, 844a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_abs, 845a4b7b5a654ca810e296bb0cca1b27b8847f5548aKenneth Graunke ir_unop_sign, 846a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_rcp, 847a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_rsq, 84844d68fd06ff8b53fc70a9a07c897dda9b3457ef8Eric Anholt ir_unop_sqrt, 849bc4034b243975089c06c4415d4e26edaaaec7a46Eric Anholt ir_unop_exp, /**< Log base e on gentype */ 850bc4034b243975089c06c4415d4e26edaaaec7a46Eric Anholt ir_unop_log, /**< Natural log on gentype */ 85101665262e50162e858c45f92a8a7e12b953e56adEric Anholt ir_unop_exp2, 85201665262e50162e858c45f92a8a7e12b953e56adEric Anholt ir_unop_log2, 853a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_f2i, /**< Float-to-integer conversion. */ 854a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_i2f, /**< Integer-to-float conversion. */ 855dc58b3f8ccd817fdee390a3df5b8e0fb29d5397cEric Anholt ir_unop_f2b, /**< Float-to-boolean conversion */ 856dc58b3f8ccd817fdee390a3df5b8e0fb29d5397cEric Anholt ir_unop_b2f, /**< Boolean-to-float conversion */ 857c2cb84e17b2f7a5db146faa9c9c2a2ffac4b6c19Eric Anholt ir_unop_i2b, /**< int-to-boolean conversion */ 858c2cb84e17b2f7a5db146faa9c9c2a2ffac4b6c19Eric Anholt ir_unop_b2i, /**< Boolean-to-int conversion */ 8596c86ea8adc095abeef7b3cd63d3321185542bf36Ian Romanick ir_unop_u2f, /**< Unsigned-to-float conversion. */ 86020ef96c7ff3f17fbf97e0452a37553249b2b005cBryan Cain ir_unop_i2u, /**< Integer-to-unsigned conversion. */ 86120ef96c7ff3f17fbf97e0452a37553249b2b005cBryan Cain ir_unop_u2i, /**< Unsigned-to-integer conversion. */ 8625e9ac94cc44ef4f97063d7b696411b2a4be16f36Eric Anholt ir_unop_any, 863a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 864a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 865a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * \name Unary floating-point rounding operations. 866a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 867a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@{*/ 868a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_trunc, 869a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_ceil, 870a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_floor, 871d925c9173009e9e5d48df30b30aaef22753183aaEric Anholt ir_unop_fract, 872d85d25dd1f4fd281bd210ba6ba5135ba1e3b535fKenneth Graunke ir_unop_round_even, 873a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@}*/ 874a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 87557e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke /** 87657e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke * \name Trigonometric operations. 87757e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke */ 87857e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke /*@{*/ 87957e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke ir_unop_sin, 88057e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke ir_unop_cos, 881f2616e56de8a48360cae8f269727b58490555f4dIan Romanick ir_unop_sin_reduced, /**< Reduced range sin. [-pi, pi] */ 882f2616e56de8a48360cae8f269727b58490555f4dIan Romanick ir_unop_cos_reduced, /**< Reduced range cos. [-pi, pi] */ 88357e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke /*@}*/ 88457e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke 885b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke /** 886b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke * \name Partial derivatives. 887b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke */ 888b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke /*@{*/ 889b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke ir_unop_dFdx, 890b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke ir_unop_dFdy, 891b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke /*@}*/ 892b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke 8933a5ce85cfa4914711e56c8cf831699242618928eIan Romanick ir_unop_noise, 8943a5ce85cfa4914711e56c8cf831699242618928eIan Romanick 895007f4881503b69055d65cfb20bd237673779786bKenneth Graunke /** 896007f4881503b69055d65cfb20bd237673779786bKenneth Graunke * A sentinel marking the last of the unary operations. 897007f4881503b69055d65cfb20bd237673779786bKenneth Graunke */ 898007f4881503b69055d65cfb20bd237673779786bKenneth Graunke ir_last_unop = ir_unop_noise, 899007f4881503b69055d65cfb20bd237673779786bKenneth Graunke 900a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_add, 901a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_sub, 902a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_mul, 903a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_div, 9048a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt 9058a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt /** 9068a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt * Takes one of two combinations of arguments: 9078a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt * 9088a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt * - mod(vecN, vecN) 9098a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt * - mod(vecN, float) 9108a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt * 9118a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt * Does not take integer types. 9128a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt */ 913a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_mod, 914a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 915a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 91614eea268284491d64ff92b37723bff1e9ff14b40Kenneth Graunke * \name Binary comparison operators which return a boolean vector. 91714eea268284491d64ff92b37723bff1e9ff14b40Kenneth Graunke * The type of both operands must be equal. 918a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 919a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@{*/ 920a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_less, 921a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_greater, 922a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_lequal, 923a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_gequal, 9244dfb89904c0a3d2166e9a3fc0253a254680e91bcLuca Barbieri ir_binop_equal, 9254dfb89904c0a3d2166e9a3fc0253a254680e91bcLuca Barbieri ir_binop_nequal, 926832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt /** 927832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt * Returns single boolean for whether all components of operands[0] 928832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt * equal the components of operands[1]. 929832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt */ 9304dfb89904c0a3d2166e9a3fc0253a254680e91bcLuca Barbieri ir_binop_all_equal, 931832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt /** 932832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt * Returns single boolean for whether any component of operands[0] 933832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt * is not equal to the corresponding component of operands[1]. 934832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt */ 9354dfb89904c0a3d2166e9a3fc0253a254680e91bcLuca Barbieri ir_binop_any_nequal, 936a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@}*/ 937a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 938a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 939a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * \name Bit-wise binary operations. 940a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 941a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@{*/ 942a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_lshift, 943a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_rshift, 944a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_bit_and, 945a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_bit_xor, 946a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_bit_or, 947a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@}*/ 948a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 949a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_logic_and, 950a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_logic_xor, 951a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_logic_or, 952a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 953a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_dot, 954a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_min, 955a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_max, 956a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 957007f4881503b69055d65cfb20bd237673779786bKenneth Graunke ir_binop_pow, 958007f4881503b69055d65cfb20bd237673779786bKenneth Graunke 959007f4881503b69055d65cfb20bd237673779786bKenneth Graunke /** 960007f4881503b69055d65cfb20bd237673779786bKenneth Graunke * A sentinel marking the last of the binary operations. 961007f4881503b69055d65cfb20bd237673779786bKenneth Graunke */ 962007f4881503b69055d65cfb20bd237673779786bKenneth Graunke ir_last_binop = ir_binop_pow, 963007f4881503b69055d65cfb20bd237673779786bKenneth Graunke 96411d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick ir_quadop_vector, 96511d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick 966007f4881503b69055d65cfb20bd237673779786bKenneth Graunke /** 967007f4881503b69055d65cfb20bd237673779786bKenneth Graunke * A sentinel marking the last of all operations. 968007f4881503b69055d65cfb20bd237673779786bKenneth Graunke */ 969007f4881503b69055d65cfb20bd237673779786bKenneth Graunke ir_last_opcode = ir_last_binop 970a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 971a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 972fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_expression : public ir_rvalue { 973a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 97413f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick /** 97513f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick * Constructor for unary operation expressions 97613f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick */ 97713f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick ir_expression(int op, const struct glsl_type *type, ir_rvalue *); 9786b937465d4aeab72fabcfe5250d477cf6790a521Eric Anholt ir_expression(int op, ir_rvalue *); 97913f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick 98013f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick /** 98113f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick * Constructor for binary operation expressions 98213f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick */ 983a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_expression(int op, const struct glsl_type *type, 984fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *, ir_rvalue *); 9856b937465d4aeab72fabcfe5250d477cf6790a521Eric Anholt ir_expression(int op, ir_rvalue *op0, ir_rvalue *op1); 986a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 98711d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick /** 98811d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick * Constructor for quad operator expressions 98911d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick */ 99011d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick ir_expression(int op, const struct glsl_type *type, 99111d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick ir_rvalue *, ir_rvalue *, ir_rvalue *, ir_rvalue *); 99211d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick 9936d8a0a0aadaafbab02dffcf7f89eb0210dd37b2eEric Anholt virtual ir_expression *as_expression() 9946d8a0a0aadaafbab02dffcf7f89eb0210dd37b2eEric Anholt { 9956d8a0a0aadaafbab02dffcf7f89eb0210dd37b2eEric Anholt return this; 9966d8a0a0aadaafbab02dffcf7f89eb0210dd37b2eEric Anholt } 9976d8a0a0aadaafbab02dffcf7f89eb0210dd37b2eEric Anholt 9988273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_expression *clone(void *mem_ctx, struct hash_table *ht) const; 9994b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 1000e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 1001e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Attempt to constant-fold the expression 1002e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * 10036e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert * The "variable_context" hash table links ir_variable * to ir_constant * 10046e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert * that represent the variables' values. \c NULL represents an empty 10056e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert * context. 10066e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert * 1007e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * If the expression cannot be constant folded, this method will return 1008e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * \c NULL. 1009e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 10106e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); 1011fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 1012e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 1013e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Determine the number of operands used by an expression 1014e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 10157dd6adbe2e791b22de97175a8715ef1217619c99Kenneth Graunke static unsigned int get_num_operands(ir_expression_operation); 1016e053d62aa573651abdd78666d299272c8219a3aaIan Romanick 1017e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 1018e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Determine the number of operands used by an expression 1019e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 10204b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt unsigned int get_num_operands() const 10217dd6adbe2e791b22de97175a8715ef1217619c99Kenneth Graunke { 102211d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick return (this->operation == ir_quadop_vector) 102311d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick ? this->type->vector_elements : get_num_operands(operation); 10247dd6adbe2e791b22de97175a8715ef1217619c99Kenneth Graunke } 1025160d092507c1ca341b7c5c88e5ba94b4cf5fb7d0Eric Anholt 10263b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke /** 10273b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke * Return a string representing this expression's operator. 10283b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke */ 10293b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke const char *operator_string(); 10303b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke 10313b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke /** 1032351525d534268b08c090f9ce42a67e9329a969aeIan Romanick * Return a string representing this expression's operator. 1033351525d534268b08c090f9ce42a67e9329a969aeIan Romanick */ 1034351525d534268b08c090f9ce42a67e9329a969aeIan Romanick static const char *operator_string(ir_expression_operation); 1035351525d534268b08c090f9ce42a67e9329a969aeIan Romanick 1036351525d534268b08c090f9ce42a67e9329a969aeIan Romanick 1037351525d534268b08c090f9ce42a67e9329a969aeIan Romanick /** 10383b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke * Do a reverse-lookup to translate the given string into an operator. 10393b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke */ 10403b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke static ir_expression_operation get_operator(const char *); 10413b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke 104278b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 104378b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 104478b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 104578b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 104678b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 10478895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 10488895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 1049a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_expression_operation operation; 105011d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick ir_rvalue *operands[4]; 1051a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 1052a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1053a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1054ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick/** 1055d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunke * HIR instruction representing a high-level function call, containing a list 1056d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunke * of parameters and returning a value in the supplied temporary. 1057ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick */ 1058d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunkeclass ir_call : public ir_instruction { 1059ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanickpublic: 1060d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunke ir_call(ir_function_signature *callee, 1061d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunke ir_dereference_variable *return_deref, 1062d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunke exec_list *actual_parameters) 1063d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunke : return_deref(return_deref), callee(callee) 1064ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick { 1065d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type = ir_type_call; 10669e7c34b865309c65ea5a763900e2d0eae4b58ce5Ian Romanick assert(callee->return_type != NULL); 1067471471f83471481db0445e73f8c89e6a9149838eIan Romanick actual_parameters->move_nodes_to(& this->actual_parameters); 106866f4ac988d5053c9782d1390541b04f4d9c50078Ian Romanick this->use_builtin = callee->is_builtin; 1069ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick } 1070ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick 10718273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_call *clone(void *mem_ctx, struct hash_table *ht) const; 10724b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 10736e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); 1074fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 1075cad9766118d269725ef33b4e9588d674d5225010Eric Anholt virtual ir_call *as_call() 1076cad9766118d269725ef33b4e9588d674d5225010Eric Anholt { 1077cad9766118d269725ef33b4e9588d674d5225010Eric Anholt return this; 1078cad9766118d269725ef33b4e9588d674d5225010Eric Anholt } 1079cad9766118d269725ef33b4e9588d674d5225010Eric Anholt 1080ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick virtual void accept(ir_visitor *v) 1081ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick { 1082ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick v->visit(this); 1083ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick } 1084ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick 10858895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 10868895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 1087ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick /** 10889878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick * Get an iterator for the set of acutal parameters 10899878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick */ 10909878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick exec_list_iterator iterator() 10919878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick { 10929878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick return actual_parameters.iterator(); 10939878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick } 10949878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick 109593614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick /** 109693614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick * Get the name of the function being called. 109793614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick */ 109893614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick const char *callee_name() const 109993614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick { 11000f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick return callee->function_name(); 110193614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick } 110293614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick 1103e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 1104cad9766118d269725ef33b4e9588d674d5225010Eric Anholt * Generates an inline version of the function before @ir, 1105d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunke * storing the return value in return_deref. 1106cad9766118d269725ef33b4e9588d674d5225010Eric Anholt */ 1107d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunke void generate_inline(ir_instruction *ir); 1108d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunke 1109d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunke /** 1110d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunke * Storage for the function's return value. 1111d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunke * This must be NULL if the return type is void. 1112d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunke */ 1113d884f60861f270cdcf7d9d47765efcf1e1de30b6Kenneth Graunke ir_dereference_variable *return_deref; 1114cad9766118d269725ef33b4e9588d674d5225010Eric Anholt 111582065fa20ee3f2880a070f1f4f75509b910ceddeKenneth Graunke /** 111682065fa20ee3f2880a070f1f4f75509b910ceddeKenneth Graunke * The specific function signature being called. 111782065fa20ee3f2880a070f1f4f75509b910ceddeKenneth Graunke */ 111882065fa20ee3f2880a070f1f4f75509b910ceddeKenneth Graunke ir_function_signature *callee; 111982065fa20ee3f2880a070f1f4f75509b910ceddeKenneth Graunke 1120a48a2b66e86d6d1c2fbb24bc60df2fdef42b3086Ian Romanick /* List of ir_rvalue of paramaters passed in this call. */ 1121a48a2b66e86d6d1c2fbb24bc60df2fdef42b3086Ian Romanick exec_list actual_parameters; 1122a48a2b66e86d6d1c2fbb24bc60df2fdef42b3086Ian Romanick 112366f4ac988d5053c9782d1390541b04f4d9c50078Ian Romanick /** Should this call only bind to a built-in function? */ 112466f4ac988d5053c9782d1390541b04f4d9c50078Ian Romanick bool use_builtin; 1125ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick}; 1126ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick 1127ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick 11289578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick/** 11299578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick * \name Jump-like IR instructions. 11309578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick * 11319578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick * These include \c break, \c continue, \c return, and \c discard. 11329578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick */ 11339578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick/*@{*/ 11349578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanickclass ir_jump : public ir_instruction { 11359578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanickprotected: 11369578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick ir_jump() 11379578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 1138d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type = ir_type_unset; 11399578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 11409578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick}; 11419578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 11429578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanickclass ir_return : public ir_jump { 11439578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanickpublic: 11449578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick ir_return() 11459578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick : value(NULL) 11469578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 1147d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt this->ir_type = ir_type_return; 11489578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 11499578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 1150fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_return(ir_rvalue *value) 11519578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick : value(value) 11529578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 1153d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt this->ir_type = ir_type_return; 11549578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 11559578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 11568273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_return *clone(void *mem_ctx, struct hash_table *) const; 11574b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 1158cad9766118d269725ef33b4e9588d674d5225010Eric Anholt virtual ir_return *as_return() 1159cad9766118d269725ef33b4e9588d674d5225010Eric Anholt { 1160cad9766118d269725ef33b4e9588d674d5225010Eric Anholt return this; 1161cad9766118d269725ef33b4e9588d674d5225010Eric Anholt } 1162cad9766118d269725ef33b4e9588d674d5225010Eric Anholt 1163fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *get_value() const 11649578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 11659578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick return value; 11669578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 11679578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 11689578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick virtual void accept(ir_visitor *v) 11699578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 11709578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick v->visit(this); 11719578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 11729578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 11738895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 11748895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 1175fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *value; 11769578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick}; 1177f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick 1178f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick 1179f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick/** 1180f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick * Jump instructions used inside loops 1181f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick * 1182f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick * These include \c break and \c continue. The \c break within a loop is 1183f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick * different from the \c break within a switch-statement. 1184f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick * 1185f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick * \sa ir_switch_jump 1186f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick */ 1187f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanickclass ir_loop_jump : public ir_jump { 1188f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanickpublic: 1189f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick enum jump_mode { 1190f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick jump_break, 1191f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick jump_continue 1192f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick }; 1193f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick 11944b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt ir_loop_jump(jump_mode mode) 1195f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick { 1196d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt this->ir_type = ir_type_loop_jump; 11970c005bd773784ee5feb2ee3d7d00c2c4335eafb4Eric Anholt this->mode = mode; 11980c005bd773784ee5feb2ee3d7d00c2c4335eafb4Eric Anholt this->loop = loop; 1199f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick } 1200f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick 12018273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_loop_jump *clone(void *mem_ctx, struct hash_table *) const; 12024b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 1203f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick virtual void accept(ir_visitor *v) 1204f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick { 1205f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick v->visit(this); 1206f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick } 1207f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick 12088895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 12098895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 1210f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick bool is_break() const 1211f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick { 1212f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick return mode == jump_break; 1213f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick } 1214f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick 1215f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick bool is_continue() const 1216f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick { 1217f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick return mode == jump_continue; 1218f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick } 1219f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick 1220f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick /** Mode selector for the jump instruction. */ 1221f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick enum jump_mode mode; 12220c005bd773784ee5feb2ee3d7d00c2c4335eafb4Eric Anholtprivate: 12230c005bd773784ee5feb2ee3d7d00c2c4335eafb4Eric Anholt /** Loop containing this break instruction. */ 12240c005bd773784ee5feb2ee3d7d00c2c4335eafb4Eric Anholt ir_loop *loop; 1225f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick}; 122616efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke 122716efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke/** 122816efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke * IR instruction representing discard statements. 122916efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke */ 123016efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunkeclass ir_discard : public ir_jump { 123116efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunkepublic: 123216efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke ir_discard() 123316efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke { 1234d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt this->ir_type = ir_type_discard; 123516efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke this->condition = NULL; 123616efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke } 123716efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke 123816efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke ir_discard(ir_rvalue *cond) 123916efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke { 124084ee01f40acf88185484df386b7715034e7685c9Aras Pranckevicius this->ir_type = ir_type_discard; 124116efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke this->condition = cond; 124216efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke } 124316efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke 12448273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_discard *clone(void *mem_ctx, struct hash_table *ht) const; 124516efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke 124616efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke virtual void accept(ir_visitor *v) 124716efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke { 124816efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke v->visit(this); 124916efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke } 125016efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke 125116efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke virtual ir_visitor_status accept(ir_hierarchical_visitor *); 125216efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke 12531eb7a81f2e43842acd59929ce65db2142b69134dKenneth Graunke virtual ir_discard *as_discard() 12541eb7a81f2e43842acd59929ce65db2142b69134dKenneth Graunke { 12551eb7a81f2e43842acd59929ce65db2142b69134dKenneth Graunke return this; 12561eb7a81f2e43842acd59929ce65db2142b69134dKenneth Graunke } 12571eb7a81f2e43842acd59929ce65db2142b69134dKenneth Graunke 125816efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke ir_rvalue *condition; 125916efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke}; 12609578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick/*@}*/ 12619578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 12629578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 126381377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick/** 126481377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * Texture sampling opcodes used in ir_texture 126581377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick */ 126681377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanickenum ir_texture_opcode { 1267e053d62aa573651abdd78666d299272c8219a3aaIan Romanick ir_tex, /**< Regular texture look-up */ 1268e053d62aa573651abdd78666d299272c8219a3aaIan Romanick ir_txb, /**< Texture look-up with LOD bias */ 1269e053d62aa573651abdd78666d299272c8219a3aaIan Romanick ir_txl, /**< Texture look-up with explicit LOD */ 1270e053d62aa573651abdd78666d299272c8219a3aaIan Romanick ir_txd, /**< Texture look-up with partial derivatvies */ 12711e3bcbdf31f09666ba358f35ff9486faee3642caKenneth Graunke ir_txf, /**< Texel fetch with explicit LOD */ 12721e3bcbdf31f09666ba358f35ff9486faee3642caKenneth Graunke ir_txs /**< Texture size */ 127381377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick}; 127481377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 127581377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 127681377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick/** 127781377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * IR instruction to sample a texture 127881377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * 127981377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * The specific form of the IR instruction depends on the \c mode value 128081377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * selected from \c ir_texture_opcodes. In the printed IR, these will 128181377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * appear as: 128281377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * 1283233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * Texel offset (0 or an expression) 1284233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * | Projection divisor 1285233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * | | Shadow comparitor 1286233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * | | | 1287233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * v v v 1288233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * (tex <type> <sampler> <coordinate> 0 1 ( )) 1289233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * (txb <type> <sampler> <coordinate> 0 1 ( ) <bias>) 1290233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * (txl <type> <sampler> <coordinate> 0 1 ( ) <lod>) 1291233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * (txd <type> <sampler> <coordinate> 0 1 ( ) (dPdx dPdy)) 1292233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * (txf <type> <sampler> <coordinate> 0 <lod>) 12931e3bcbdf31f09666ba358f35ff9486faee3642caKenneth Graunke * (txs <type> <sampler> <lod>) 129481377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick */ 129581377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanickclass ir_texture : public ir_rvalue { 129681377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanickpublic: 129781377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_texture(enum ir_texture_opcode op) 1298c5a27b5939427bdc95c926b450ed3de1ff4baafbKenneth Graunke : op(op), projector(NULL), shadow_comparitor(NULL), offset(NULL) 129981377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick { 1300d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt this->ir_type = ir_type_texture; 130181377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick } 130281377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 13038273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_texture *clone(void *mem_ctx, struct hash_table *) const; 13044b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 13056e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); 1306fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 130726d74cd1d140786b8f4b1ccbaf500a16e68eec3cKenneth Graunke virtual void accept(ir_visitor *v) 130826d74cd1d140786b8f4b1ccbaf500a16e68eec3cKenneth Graunke { 130926d74cd1d140786b8f4b1ccbaf500a16e68eec3cKenneth Graunke v->visit(this); 131026d74cd1d140786b8f4b1ccbaf500a16e68eec3cKenneth Graunke } 131126d74cd1d140786b8f4b1ccbaf500a16e68eec3cKenneth Graunke 131226d74cd1d140786b8f4b1ccbaf500a16e68eec3cKenneth Graunke virtual ir_visitor_status accept(ir_hierarchical_visitor *); 131326d74cd1d140786b8f4b1ccbaf500a16e68eec3cKenneth Graunke 1314c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke /** 1315c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke * Return a string representing the ir_texture_opcode. 1316c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke */ 1317c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke const char *opcode_string(); 1318c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke 1319233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke /** Set the sampler and type. */ 1320233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke void set_sampler(ir_dereference *sampler, const glsl_type *type); 132156d3f6ad782e9819b40544494826954d3fcf978bKenneth Graunke 1322c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke /** 1323c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke * Do a reverse-lookup to translate a string into an ir_texture_opcode. 1324c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke */ 1325c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke static ir_texture_opcode get_opcode(const char *); 1326c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke 132781377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick enum ir_texture_opcode op; 132881377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 132981377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick /** Sampler to use for the texture access. */ 133081377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_dereference *sampler; 133181377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 133281377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick /** Texture coordinate to sample */ 133381377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_rvalue *coordinate; 133481377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 133581377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick /** 133681377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * Value used for projective divide. 133781377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * 133881377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * If there is no projective divide (the common case), this will be 133981377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * \c NULL. Optimization passes should check for this to point to a constant 134081377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * of 1.0 and replace that with \c NULL. 134181377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick */ 134281377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_rvalue *projector; 134381377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 134481377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick /** 134581377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * Coordinate used for comparison on shadow look-ups. 134681377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * 134781377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * If there is no shadow comparison, this will be \c NULL. For the 134881377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * \c ir_txf opcode, this *must* be \c NULL. 134981377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick */ 135081377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_rvalue *shadow_comparitor; 135181377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 1352c5a27b5939427bdc95c926b450ed3de1ff4baafbKenneth Graunke /** Texel offset. */ 1353c5a27b5939427bdc95c926b450ed3de1ff4baafbKenneth Graunke ir_rvalue *offset; 135481377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 135581377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick union { 135681377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_rvalue *lod; /**< Floating point LOD */ 135781377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_rvalue *bias; /**< Floating point LOD bias */ 135881377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick struct { 135981377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_rvalue *dPdx; /**< Partial derivative of coordinate wrt X */ 136081377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_rvalue *dPdy; /**< Partial derivative of coordinate wrt Y */ 136181377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick } grad; 136281377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick } lod_info; 136381377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick}; 136481377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 136581377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 1366a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickstruct ir_swizzle_mask { 1367a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned x:2; 1368a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned y:2; 1369a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned z:2; 1370a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned w:2; 1371a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1372a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 1373a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Number of components in the swizzle. 1374a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 1375f25a5ad93961c335b56d4f0508cc5c00b77ee519Kenneth Graunke unsigned num_components:3; 1376a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1377a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 1378a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Does the swizzle contain duplicate components? 1379a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 1380a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * L-value swizzles cannot contain duplicate components. 1381a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 1382a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned has_duplicates:1; 1383a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 1384a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1385affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 1386affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunkeclass ir_swizzle : public ir_rvalue { 1387affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunkepublic: 1388affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke ir_swizzle(ir_rvalue *, unsigned x, unsigned y, unsigned z, unsigned w, 1389affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke unsigned count); 13906315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick 13916315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick ir_swizzle(ir_rvalue *val, const unsigned *components, unsigned count); 13926315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick 139305a4e59c2410292f595cfe0cc552a86ae69b20d2Eric Anholt ir_swizzle(ir_rvalue *val, ir_swizzle_mask mask); 1394cad9766118d269725ef33b4e9588d674d5225010Eric Anholt 13958273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_swizzle *clone(void *mem_ctx, struct hash_table *) const; 13964b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 13976e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); 1398fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 13997d21104a8b92c139051e9a224c5d863802a8ade6Eric Anholt virtual ir_swizzle *as_swizzle() 14007d21104a8b92c139051e9a224c5d863802a8ade6Eric Anholt { 14017d21104a8b92c139051e9a224c5d863802a8ade6Eric Anholt return this; 14027d21104a8b92c139051e9a224c5d863802a8ade6Eric Anholt } 14037d21104a8b92c139051e9a224c5d863802a8ade6Eric Anholt 1404affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke /** 1405affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke * Construct an ir_swizzle from the textual representation. Can fail. 1406affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke */ 1407affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke static ir_swizzle *create(ir_rvalue *, const char *, unsigned vector_length); 1408affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 1409affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke virtual void accept(ir_visitor *v) 1410affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke { 1411affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke v->visit(this); 1412affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke } 1413affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 14148895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 14158895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 1416a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry bool is_lvalue() const 1417affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke { 1418a9fafc6504ebccdc0fee3d2529c3fe6068cc86b8Eric Anholt return val->is_lvalue() && !mask.has_duplicates; 1419affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke } 1420affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 14212b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick /** 14222b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick * Get the variable that is ultimately referenced by an r-value 14232b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick */ 1424a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry virtual ir_variable *variable_referenced() const; 14252b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick 1426affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke ir_rvalue *val; 1427affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke ir_swizzle_mask mask; 14286315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick 14296315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanickprivate: 14306315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick /** 14316315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick * Initialize the mask component of a swizzle 14326315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick * 14336315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick * This is used by the \c ir_swizzle constructors. 14346315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick */ 14356315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick void init_mask(const unsigned *components, unsigned count); 1436affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke}; 1437affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 1438affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 1439fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_dereference : public ir_rvalue { 1440a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 14418273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_dereference *clone(void *mem_ctx, struct hash_table *) const = 0; 1442ca088cc277ce9f986693c857f3961dc0e1a4d91cIan Romanick 144344e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke virtual ir_dereference *as_dereference() 144444e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke { 144544e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke return this; 144644e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke } 144744e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke 1448a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry bool is_lvalue() const; 1449fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 14502b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick /** 14512b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick * Get the variable that is ultimately referenced by an r-value 14522b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick */ 1453a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry virtual ir_variable *variable_referenced() const = 0; 145470fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick}; 145570fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 145670fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 145770fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanickclass ir_dereference_variable : public ir_dereference { 145870fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanickpublic: 145970fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick ir_dereference_variable(ir_variable *var); 146070fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 14618273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_dereference_variable *clone(void *mem_ctx, 14628273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt struct hash_table *) const; 14634b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 14646e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); 1465fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 1466d4f7e660dd81e05b0829c1b70663b3959fd78f47Eric Anholt virtual ir_dereference_variable *as_dereference_variable() 1467d4f7e660dd81e05b0829c1b70663b3959fd78f47Eric Anholt { 1468d4f7e660dd81e05b0829c1b70663b3959fd78f47Eric Anholt return this; 1469d4f7e660dd81e05b0829c1b70663b3959fd78f47Eric Anholt } 1470d4f7e660dd81e05b0829c1b70663b3959fd78f47Eric Anholt 147170fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick /** 147270fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick * Get the variable that is ultimately referenced by an r-value 147370fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick */ 1474a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry virtual ir_variable *variable_referenced() const 147570fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick { 147636ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick return this->var; 147770fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick } 1478f3a002b503542fe2544025c6a42d552fdc4907c2Ian Romanick 1479b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick virtual ir_variable *whole_variable_referenced() 1480b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick { 1481b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick /* ir_dereference_variable objects always dereference the entire 1482b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * variable. However, if this dereference is dereferenced by anything 1483b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * else, the complete deferefernce chain is not a whole-variable 1484b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * dereference. This method should only be called on the top most 1485b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * ir_rvalue in a dereference chain. 1486b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick */ 1487b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick return this->var; 1488b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick } 1489b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick 1490c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick virtual void accept(ir_visitor *v) 1491c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick { 1492c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick v->visit(this); 1493c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick } 1494c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick 1495f3a002b503542fe2544025c6a42d552fdc4907c2Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 149636ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick 149736ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick /** 149836ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick * Object being dereferenced. 149936ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick */ 150036ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick ir_variable *var; 150170fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick}; 150270fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 150370fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 150470fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanickclass ir_dereference_array : public ir_dereference { 150570fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanickpublic: 150670fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick ir_dereference_array(ir_rvalue *value, ir_rvalue *array_index); 150770fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 150870fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick ir_dereference_array(ir_variable *var, ir_rvalue *array_index); 150970fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 15108273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_dereference_array *clone(void *mem_ctx, 15118273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt struct hash_table *) const; 15124b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 15136e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); 1514fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 1515b145e903694fa932ab1e0d955e889555193ab604Eric Anholt virtual ir_dereference_array *as_dereference_array() 1516b145e903694fa932ab1e0d955e889555193ab604Eric Anholt { 1517b145e903694fa932ab1e0d955e889555193ab604Eric Anholt return this; 1518b145e903694fa932ab1e0d955e889555193ab604Eric Anholt } 1519b145e903694fa932ab1e0d955e889555193ab604Eric Anholt 152070fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick /** 152170fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick * Get the variable that is ultimately referenced by an r-value 152270fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick */ 1523a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry virtual ir_variable *variable_referenced() const 152470fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick { 152536ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick return this->array->variable_referenced(); 152670fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick } 152770fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 1528c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick virtual void accept(ir_visitor *v) 1529c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick { 1530c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick v->visit(this); 1531c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick } 1532c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick 1533f3a002b503542fe2544025c6a42d552fdc4907c2Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 153470fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 153536ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick ir_rvalue *array; 153636ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick ir_rvalue *array_index; 153736ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick 153870fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanickprivate: 153970fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick void set_array(ir_rvalue *value); 154070fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick}; 154170fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 154270fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 154370fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanickclass ir_dereference_record : public ir_dereference { 154470fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanickpublic: 154570fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick ir_dereference_record(ir_rvalue *value, const char *field); 154670fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 154770fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick ir_dereference_record(ir_variable *var, const char *field); 154870fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 15498273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_dereference_record *clone(void *mem_ctx, 15508273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt struct hash_table *) const; 15514b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 15526e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); 1553fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 155470fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick /** 155570fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick * Get the variable that is ultimately referenced by an r-value 155670fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick */ 1557a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry virtual ir_variable *variable_referenced() const 155870fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick { 155936ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick return this->record->variable_referenced(); 156070fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick } 1561f3a002b503542fe2544025c6a42d552fdc4907c2Ian Romanick 1562c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick virtual void accept(ir_visitor *v) 1563c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick { 1564c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick v->visit(this); 1565c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick } 1566c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick 1567f3a002b503542fe2544025c6a42d552fdc4907c2Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 156836ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick 156936ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick ir_rvalue *record; 157036ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick const char *field; 1571a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 1572a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1573a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1574be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick/** 1575be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * Data stored in an ir_constant 1576be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick */ 1577be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanickunion ir_constant_data { 1578be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick unsigned u[16]; 1579be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick int i[16]; 1580be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick float f[16]; 1581be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick bool b[16]; 1582be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick}; 1583be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 1584be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 1585fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_constant : public ir_rvalue { 1586a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 1587824b659d917a5f14a1f66b891d25036ef9f9adc6Ian Romanick ir_constant(const struct glsl_type *type, const ir_constant_data *data); 15883c36b2df7c854d23b2be9580e416fb04079a1befEric Anholt ir_constant(bool b); 15893c36b2df7c854d23b2be9580e416fb04079a1befEric Anholt ir_constant(unsigned int u); 15903c36b2df7c854d23b2be9580e416fb04079a1befEric Anholt ir_constant(int i); 15913c36b2df7c854d23b2be9580e416fb04079a1befEric Anholt ir_constant(float f); 1592a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1593989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick /** 1594756a3fac4fbbc6b3785715db745f8d58a14baeb9Ian Romanick * Construct an ir_constant from a list of ir_constant values 1595756a3fac4fbbc6b3785715db745f8d58a14baeb9Ian Romanick */ 1596756a3fac4fbbc6b3785715db745f8d58a14baeb9Ian Romanick ir_constant(const struct glsl_type *type, exec_list *values); 1597756a3fac4fbbc6b3785715db745f8d58a14baeb9Ian Romanick 1598756a3fac4fbbc6b3785715db745f8d58a14baeb9Ian Romanick /** 1599989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * Construct an ir_constant from a scalar component of another ir_constant 1600989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * 1601989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * The new \c ir_constant inherits the type of the component from the 1602989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * source constant. 1603989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * 1604989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * \note 1605989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * In the case of a matrix constant, the new constant is a scalar, \b not 1606989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * a vector. 1607989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick */ 1608989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick ir_constant(const ir_constant *c, unsigned i); 1609989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick 1610ee9a3a51b61f0afe75b4b8b0c3025310140437ecKenneth Graunke /** 1611ee9a3a51b61f0afe75b4b8b0c3025310140437ecKenneth Graunke * Return a new ir_constant of the specified type containing all zeros. 1612ee9a3a51b61f0afe75b4b8b0c3025310140437ecKenneth Graunke */ 1613ee9a3a51b61f0afe75b4b8b0c3025310140437ecKenneth Graunke static ir_constant *zero(void *mem_ctx, const glsl_type *type); 1614ee9a3a51b61f0afe75b4b8b0c3025310140437ecKenneth Graunke 16158273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_constant *clone(void *mem_ctx, struct hash_table *) const; 16164b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 16176e4852a3a5f3cbe52c53d91d343a37861f207563Olivier Galibert virtual ir_constant *constant_expression_value(struct hash_table *variable_context = NULL); 1618fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 16195c89f0ecb9581cbe83442ab3f41f2f3701fffab0Eric Anholt virtual ir_constant *as_constant() 16205c89f0ecb9581cbe83442ab3f41f2f3701fffab0Eric Anholt { 16215c89f0ecb9581cbe83442ab3f41f2f3701fffab0Eric Anholt return this; 16225c89f0ecb9581cbe83442ab3f41f2f3701fffab0Eric Anholt } 16235c89f0ecb9581cbe83442ab3f41f2f3701fffab0Eric Anholt 162478b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 162578b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 162678b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 162778b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 162878b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 16298895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 16308895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 1631a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 163231881908ebc11d84c2ff1821410c91340686aa17Ian Romanick * Get a particular component of a constant as a specific type 163331881908ebc11d84c2ff1821410c91340686aa17Ian Romanick * 163431881908ebc11d84c2ff1821410c91340686aa17Ian Romanick * This is useful, for example, to get a value from an integer constant 163531881908ebc11d84c2ff1821410c91340686aa17Ian Romanick * as a float or bool. This appears frequently when constructors are 163631881908ebc11d84c2ff1821410c91340686aa17Ian Romanick * called with all constant parameters. 163731881908ebc11d84c2ff1821410c91340686aa17Ian Romanick */ 163831881908ebc11d84c2ff1821410c91340686aa17Ian Romanick /*@{*/ 163931881908ebc11d84c2ff1821410c91340686aa17Ian Romanick bool get_bool_component(unsigned i) const; 164031881908ebc11d84c2ff1821410c91340686aa17Ian Romanick float get_float_component(unsigned i) const; 164131881908ebc11d84c2ff1821410c91340686aa17Ian Romanick int get_int_component(unsigned i) const; 164231881908ebc11d84c2ff1821410c91340686aa17Ian Romanick unsigned get_uint_component(unsigned i) const; 164331881908ebc11d84c2ff1821410c91340686aa17Ian Romanick /*@}*/ 164431881908ebc11d84c2ff1821410c91340686aa17Ian Romanick 164574e1802f5dd8921750851abc6128e4073602d405Kenneth Graunke ir_constant *get_array_element(unsigned i) const; 164674e1802f5dd8921750851abc6128e4073602d405Kenneth Graunke 1647b94c29a47b5020e4d052679fc5d22c19533fd73bIan Romanick ir_constant *get_record_field(const char *name); 1648b94c29a47b5020e4d052679fc5d22c19533fd73bIan Romanick 164931881908ebc11d84c2ff1821410c91340686aa17Ian Romanick /** 16501e8b7a714e8acbb5028a250048452f2efc29d02eIan Romanick * Determine whether a constant has the same value as another constant 165138e55153af031e48125b1cd0a5d939bb92379ddcIan Romanick * 16528e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * \sa ir_constant::is_zero, ir_constant::is_one, 16538e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * ir_constant::is_negative_one 16541e8b7a714e8acbb5028a250048452f2efc29d02eIan Romanick */ 16551e8b7a714e8acbb5028a250048452f2efc29d02eIan Romanick bool has_value(const ir_constant *) const; 16561e8b7a714e8acbb5028a250048452f2efc29d02eIan Romanick 1657ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick virtual bool is_zero() const; 1658ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick virtual bool is_one() const; 16598e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick virtual bool is_negative_one() const; 166038e55153af031e48125b1cd0a5d939bb92379ddcIan Romanick 166138e55153af031e48125b1cd0a5d939bb92379ddcIan Romanick /** 1662a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Value of the constant. 1663a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 1664a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * The field used to back the values supplied by the constant is determined 1665a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * by the type associated with the \c ir_instruction. Constants may be 1666a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * scalars, vectors, or matrices. 1667a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 1668be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick union ir_constant_data value; 16697f1ab834d7aa901ce0e12f40db23d7d9891eae59Ian Romanick 167074e1802f5dd8921750851abc6128e4073602d405Kenneth Graunke /* Array elements */ 167174e1802f5dd8921750851abc6128e4073602d405Kenneth Graunke ir_constant **array_elements; 167274e1802f5dd8921750851abc6128e4073602d405Kenneth Graunke 167374e1802f5dd8921750851abc6128e4073602d405Kenneth Graunke /* Structure fields */ 16747f1ab834d7aa901ce0e12f40db23d7d9891eae59Ian Romanick exec_list components; 1675710919fd7cb7ac6cb640afa362f5c409e5a5ec91Ian Romanick 1676710919fd7cb7ac6cb640afa362f5c409e5a5ec91Ian Romanickprivate: 1677710919fd7cb7ac6cb640afa362f5c409e5a5ec91Ian Romanick /** 1678710919fd7cb7ac6cb640afa362f5c409e5a5ec91Ian Romanick * Parameterless constructor only used by the clone method 1679710919fd7cb7ac6cb640afa362f5c409e5a5ec91Ian Romanick */ 1680710919fd7cb7ac6cb640afa362f5c409e5a5ec91Ian Romanick ir_constant(void); 1681a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 1682a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1683e053d62aa573651abdd78666d299272c8219a3aaIan Romanick/*@}*/ 1684e053d62aa573651abdd78666d299272c8219a3aaIan Romanick 1685e053d62aa573651abdd78666d299272c8219a3aaIan Romanick/** 1686e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Apply a visitor to each IR node in a list 1687e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 168870b74928a220aff024664714877defb0caedf33fEric Anholtvoid 168970b74928a220aff024664714877defb0caedf33fEric Anholtvisit_exec_list(exec_list *list, ir_visitor *visitor); 1690adfb0cd7401251bef0c854ac945fce78f0ed11dbIan Romanick 1691e053d62aa573651abdd78666d299272c8219a3aaIan Romanick/** 1692e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Validate invariants on each IR node in a list 1693e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 169453cdb7e51d85d4b4a35fba3ec200b27991b8488bEric Anholtvoid validate_ir_tree(exec_list *instructions); 169553cdb7e51d85d4b4a35fba3ec200b27991b8488bEric Anholt 169602c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanickstruct _mesa_glsl_parse_state; 169702c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanickstruct gl_shader_program; 169802c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick 169902c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick/** 170002c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * Detect whether an unlinked shader contains static recursion 170102c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * 170202c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * If the list of instructions is determined to contain static recursion, 170302c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * \c _mesa_glsl_error will be called to emit error messages for each function 170402c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * that is in the recursion cycle. 170502c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick */ 170602c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanickvoid 170702c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanickdetect_recursion_unlinked(struct _mesa_glsl_parse_state *state, 170802c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick exec_list *instructions); 170902c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick 171002c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick/** 171102c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * Detect whether a linked shader contains static recursion 171202c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * 171302c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * If the list of instructions is determined to contain static recursion, 171402c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * \c link_error_printf will be called to emit error messages for each function 171502c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * that is in the recursion cycle. In addition, 171602c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * \c gl_shader_program::LinkStatus will be set to false. 171702c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick */ 171802c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanickvoid 171902c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanickdetect_recursion_linked(struct gl_shader_program *prog, 172002c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick exec_list *instructions); 172102c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick 1722f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanick/** 1723f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanick * Make a clone of each IR instruction in a list 1724f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanick * 1725f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanick * \param in List of IR instructions that are to be cloned 1726f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanick * \param out List to hold the cloned instructions 1727f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanick */ 1728f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanickvoid 17298273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholtclone_ir_list(void *mem_ctx, exec_list *out, const exec_list *in); 1730f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanick 1731adfb0cd7401251bef0c854ac945fce78f0ed11dbIan Romanickextern void 1732adfb0cd7401251bef0c854ac945fce78f0ed11dbIan Romanick_mesa_glsl_initialize_variables(exec_list *instructions, 1733adfb0cd7401251bef0c854ac945fce78f0ed11dbIan Romanick struct _mesa_glsl_parse_state *state); 1734e309a6051d1a04ee581f0a47c6c585918fba1096Ian Romanick 1735c22c40015db32b68b33c4944b9d94bf499135ec5Eric Anholtextern void 173681168351a7f493fcde55e621af046c9301aa93e9Kenneth Graunke_mesa_glsl_initialize_functions(_mesa_glsl_parse_state *state); 1737c22c40015db32b68b33c4944b9d94bf499135ec5Eric Anholt 173860e2d06d1ccc66ad00cd7ab81c418853f21be291Ian Romanickextern void 1739d5be2acae379783c4aa31243e0a88a9e67e6ca7eIan Romanick_mesa_glsl_release_functions(void); 1740d5be2acae379783c4aa31243e0a88a9e67e6ca7eIan Romanick 1741d5be2acae379783c4aa31243e0a88a9e67e6ca7eIan Romanickextern void 174260e2d06d1ccc66ad00cd7ab81c418853f21be291Ian Romanickreparent_ir(exec_list *list, void *mem_ctx); 174360e2d06d1ccc66ad00cd7ab81c418853f21be291Ian Romanick 17441cbcf6693aa490c4dcb56712bfb9998deb270f08José Fonsecastruct glsl_symbol_table; 17454ccd3c548b9b9a2fee79342445f68d73525bfcdbIan Romanick 17464ccd3c548b9b9a2fee79342445f68d73525bfcdbIan Romanickextern void 17474ccd3c548b9b9a2fee79342445f68d73525bfcdbIan Romanickimport_prototypes(const exec_list *source, exec_list *dest, 17481cbcf6693aa490c4dcb56712bfb9998deb270f08José Fonseca struct glsl_symbol_table *symbols, void *mem_ctx); 17494ccd3c548b9b9a2fee79342445f68d73525bfcdbIan Romanick 17509f82806c7b5109553cf806a5652e6b6198665094Eric Anholtextern bool 17519f82806c7b5109553cf806a5652e6b6198665094Eric Anholtir_has_call(ir_instruction *ir); 17529f82806c7b5109553cf806a5652e6b6198665094Eric Anholt 1753925b49ff310bf0b307add7c34627cddf87e6a554Eric Anholtextern void 1754cf45949d6a896651a5f3864d3b195e26d59eee74Paul Berrydo_set_program_inouts(exec_list *instructions, struct gl_program *prog, 1755cf45949d6a896651a5f3864d3b195e26d59eee74Paul Berry bool is_fragment_shader); 1756925b49ff310bf0b307add7c34627cddf87e6a554Eric Anholt 17571ad3ba4ad954b86751bd5b6ad0a431920bff9958Ian Romanickextern char * 17581ad3ba4ad954b86751bd5b6ad0a431920bff9958Ian Romanickprototype_string(const glsl_type *return_type, const char *name, 17591ad3ba4ad954b86751bd5b6ad0a431920bff9958Ian Romanick exec_list *parameters); 17601ad3ba4ad954b86751bd5b6ad0a431920bff9958Ian Romanick 1761e309a6051d1a04ee581f0a47c6c585918fba1096Ian Romanick#endif /* IR_H */ 1762