ir.h revision 22af08b410f47227ea27b06cce097ccbe0130540
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 const struct glsl_type *type; 92a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 93e46a454305af64710ce8deadafc718f75363ac7eEric Anholt /** ir_print_visitor helper for debugging. */ 944b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt void print(void) const; 95e46a454305af64710ce8deadafc718f75363ac7eEric Anholt 9678b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *) = 0; 978895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *) = 0; 988273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_instruction *clone(void *mem_ctx, 998273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt struct hash_table *ht) const = 0; 10078b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 10144e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke /** 10244e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * \name IR instruction downcast functions 10344e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * 10444e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * These functions either cast the object to a derived class or return 10544e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * \c NULL if the object's type does not match the specified derived class. 10644e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke * Additional downcast functions will be added as needed. 10744e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke */ 10844e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke /*@{*/ 10944e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke virtual class ir_variable * as_variable() { return NULL; } 1106202cbfe3614141e330501959a7322522b35f4e4Kenneth Graunke virtual class ir_function * as_function() { return NULL; } 11144e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke virtual class ir_dereference * as_dereference() { return NULL; } 112b145e903694fa932ab1e0d955e889555193ab604Eric Anholt virtual class ir_dereference_array * as_dereference_array() { return NULL; } 113d4f7e660dd81e05b0829c1b70663b3959fd78f47Eric Anholt virtual class ir_dereference_variable *as_dereference_variable() { return NULL; } 1146d8a0a0aadaafbab02dffcf7f89eb0210dd37b2eEric Anholt virtual class ir_expression * as_expression() { return NULL; } 115fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke virtual class ir_rvalue * as_rvalue() { return NULL; } 11601f8de4a87157b01e8b9fe31c6766a15bbfb2788Ian Romanick virtual class ir_loop * as_loop() { return NULL; } 117cad9766118d269725ef33b4e9588d674d5225010Eric Anholt virtual class ir_assignment * as_assignment() { return NULL; } 118cad9766118d269725ef33b4e9588d674d5225010Eric Anholt virtual class ir_call * as_call() { return NULL; } 119cad9766118d269725ef33b4e9588d674d5225010Eric Anholt virtual class ir_return * as_return() { return NULL; } 1205ba94206083fcd678febd6cac0231f35c0f1b77aEric Anholt virtual class ir_if * as_if() { return NULL; } 1217d21104a8b92c139051e9a224c5d863802a8ade6Eric Anholt virtual class ir_swizzle * as_swizzle() { return NULL; } 1225c89f0ecb9581cbe83442ab3f41f2f3701fffab0Eric Anholt virtual class ir_constant * as_constant() { return NULL; } 1231eb7a81f2e43842acd59929ce65db2142b69134dKenneth Graunke virtual class ir_discard * as_discard() { return NULL; } 12444e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke /*@}*/ 12544e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke 126a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickprotected: 12744e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke ir_instruction() 128d27ec2461bca2625d09a3592ec8cc4137d4347f3Ian Romanick { 129d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type = ir_type_unset; 1300a89175a35ba3ac2a94d0ba9bcc9926edc8927e3Kenneth Graunke type = NULL; 131d27ec2461bca2625d09a3592ec8cc4137d4347f3Ian Romanick } 132a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 133a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 134a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 135fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_rvalue : public ir_instruction { 136fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkepublic: 1378273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_rvalue *clone(void *mem_ctx, struct hash_table *) const = 0; 138ca088cc277ce9f986693c857f3961dc0e1a4d91cIan Romanick 139fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke virtual ir_constant *constant_expression_value() = 0; 140fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 141fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke virtual ir_rvalue * as_rvalue() 142fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke { 143fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke return this; 144fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke } 145fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 14602939d643f878ce3a3dcd2e7b2c6f035c64ecda7Eric Anholt ir_rvalue *as_rvalue_to_saturate(); 14702939d643f878ce3a3dcd2e7b2c6f035c64ecda7Eric Anholt 148a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry virtual bool is_lvalue() const 149fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke { 150fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke return false; 151fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke } 152fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 1532b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick /** 1542b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick * Get the variable that is ultimately referenced by an r-value 1552b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick */ 156a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry virtual ir_variable *variable_referenced() const 1572b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick { 1582b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick return NULL; 1592b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick } 1602b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick 161b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick 162b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick /** 163b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * If an r-value is a reference to a whole variable, get that variable 164b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * 165b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * \return 166b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * Pointer to a variable that is completely dereferenced by the r-value. If 167b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * the r-value is not a dereference or the dereference does not access the 168b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * entire variable (i.e., it's just one array element, struct field), \c NULL 169b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * is returned. 170b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick */ 171b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick virtual ir_variable *whole_variable_referenced() 172b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick { 173b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick return NULL; 174b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick } 175b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick 176ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick /** 177ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * Determine if an r-value has the value zero 178ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * 179ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * The base implementation of this function always returns \c false. The 180ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * \c ir_constant class over-rides this function to return \c true \b only 181ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * for vector and scalar types that have all elements set to the value 182ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * zero (or \c false for booleans). 183ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * 1848e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * \sa ir_constant::has_value, ir_rvalue::is_one, ir_rvalue::is_negative_one 185ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick */ 186ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick virtual bool is_zero() const; 187ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick 188ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick /** 189ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * Determine if an r-value has the value one 190ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * 191ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * The base implementation of this function always returns \c false. The 192ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * \c ir_constant class over-rides this function to return \c true \b only 193ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * for vector and scalar types that have all elements set to the value 194ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * one (or \c true for booleans). 195ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick * 1968e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * \sa ir_constant::has_value, ir_rvalue::is_zero, ir_rvalue::is_negative_one 197ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick */ 198ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick virtual bool is_one() const; 199ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick 2008e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick /** 2018e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * Determine if an r-value has the value negative one 2028e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * 2038e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * The base implementation of this function always returns \c false. The 2048e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * \c ir_constant class over-rides this function to return \c true \b only 2058e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * for vector and scalar types that have all elements set to the value 2068e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * negative one. For boolean times, the result is always \c false. 2078e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * 2088e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * \sa ir_constant::has_value, ir_rvalue::is_zero, ir_rvalue::is_one 2098e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick */ 2108e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick virtual bool is_negative_one() const; 2118e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick 212fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeprotected: 2130a89175a35ba3ac2a94d0ba9bcc9926edc8927e3Kenneth Graunke ir_rvalue(); 214fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke}; 215fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 216fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 217e053d62aa573651abdd78666d299272c8219a3aaIan Romanick/** 218e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Variable storage classes 219e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 220a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickenum ir_variable_mode { 221e053d62aa573651abdd78666d299272c8219a3aaIan Romanick ir_var_auto = 0, /**< Function local variables and globals. */ 222e053d62aa573651abdd78666d299272c8219a3aaIan Romanick ir_var_uniform, /**< Variable declared as a uniform. */ 223a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_var_in, 224a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_var_out, 2257e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_var_inout, 226819d57fce94b20fa0d34da6f037f0a53c4a5bdc2Kenneth Graunke ir_var_const_in, /**< "in" param that must be a constant expression */ 2277ce186358e881d1e30eda716a8dea73d2dab2ee9Brian Paul ir_var_system_value, /**< Ex: front-face, instance-id, etc. */ 2287e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_var_temporary /**< Temporary variable generated during compilation. */ 229a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 230a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 2315fc57f471b10e74546f999269a2a8f9186da9731Chad Versace/** 2325fc57f471b10e74546f999269a2a8f9186da9731Chad Versace * \brief Layout qualifiers for gl_FragDepth. 2335fc57f471b10e74546f999269a2a8f9186da9731Chad Versace * 234b9eb4d8a59699e233255113acafae220c3d8fe3cKenneth Graunke * The AMD/ARB_conservative_depth extensions allow gl_FragDepth to be redeclared 2355fc57f471b10e74546f999269a2a8f9186da9731Chad Versace * with a layout qualifier. 2365fc57f471b10e74546f999269a2a8f9186da9731Chad Versace */ 2375fc57f471b10e74546f999269a2a8f9186da9731Chad Versaceenum ir_depth_layout { 2385fc57f471b10e74546f999269a2a8f9186da9731Chad Versace ir_depth_layout_none, /**< No depth layout is specified. */ 2395fc57f471b10e74546f999269a2a8f9186da9731Chad Versace ir_depth_layout_any, 2405fc57f471b10e74546f999269a2a8f9186da9731Chad Versace ir_depth_layout_greater, 2415fc57f471b10e74546f999269a2a8f9186da9731Chad Versace ir_depth_layout_less, 2425fc57f471b10e74546f999269a2a8f9186da9731Chad Versace ir_depth_layout_unchanged 2435fc57f471b10e74546f999269a2a8f9186da9731Chad Versace}; 2445fc57f471b10e74546f999269a2a8f9186da9731Chad Versace 2455fc57f471b10e74546f999269a2a8f9186da9731Chad Versace/** 2465fc57f471b10e74546f999269a2a8f9186da9731Chad Versace * \brief Convert depth layout qualifier to string. 2475fc57f471b10e74546f999269a2a8f9186da9731Chad Versace */ 2485fc57f471b10e74546f999269a2a8f9186da9731Chad Versaceconst char* 2495fc57f471b10e74546f999269a2a8f9186da9731Chad Versacedepth_layout_string(ir_depth_layout layout); 250fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 25189d81ab16c05818b290ed735c1343d3abde449bfIan Romanick/** 25289d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * Description of built-in state associated with a uniform 25389d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * 25489d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * \sa ir_variable::state_slots 25589d81ab16c05818b290ed735c1343d3abde449bfIan Romanick */ 25689d81ab16c05818b290ed735c1343d3abde449bfIan Romanickstruct ir_state_slot { 25789d81ab16c05818b290ed735c1343d3abde449bfIan Romanick int tokens[5]; 25889d81ab16c05818b290ed735c1343d3abde449bfIan Romanick int swizzle; 25989d81ab16c05818b290ed735c1343d3abde449bfIan Romanick}; 26089d81ab16c05818b290ed735c1343d3abde449bfIan Romanick 261a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickclass ir_variable : public ir_instruction { 262a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 2637e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_variable(const struct glsl_type *, const char *, ir_variable_mode); 264a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 2658273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_variable *clone(void *mem_ctx, struct hash_table *ht) const; 2664b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 26744e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke virtual ir_variable *as_variable() 26844e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke { 26944e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke return this; 27044e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke } 27144e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke 27278b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 27378b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 27478b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 27578b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 27678b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 2778895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 2788895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 2792d394d4877794d19756c3760d711524dca89f772Ian Romanick 280950ceb2bd60c25e7fecdff0fbcbf6e69015588f3Ian Romanick /** 281950ceb2bd60c25e7fecdff0fbcbf6e69015588f3Ian Romanick * Get the string value for the interpolation qualifier 282950ceb2bd60c25e7fecdff0fbcbf6e69015588f3Ian Romanick * 283046bef235744e891e4a48076e1a3ff9a61a63092Eric Anholt * \return The string that would be used in a shader to specify \c 284046bef235744e891e4a48076e1a3ff9a61a63092Eric Anholt * mode will be returned. 285046bef235744e891e4a48076e1a3ff9a61a63092Eric Anholt * 286c488150dea083a9677429b4185c6b20d7facd52bPaul Berry * This function is used to generate error messages of the form "shader 287c488150dea083a9677429b4185c6b20d7facd52bPaul Berry * uses %s interpolation qualifier", so in the case where there is no 288c488150dea083a9677429b4185c6b20d7facd52bPaul Berry * interpolation qualifier, it returns "no". 289c488150dea083a9677429b4185c6b20d7facd52bPaul Berry * 290046bef235744e891e4a48076e1a3ff9a61a63092Eric Anholt * This function should only be used on a shader input or output variable. 291950ceb2bd60c25e7fecdff0fbcbf6e69015588f3Ian Romanick */ 292950ceb2bd60c25e7fecdff0fbcbf6e69015588f3Ian Romanick const char *interpolation_string() const; 293950ceb2bd60c25e7fecdff0fbcbf6e69015588f3Ian Romanick 2948b80e9f9e3bc9ca41c95125826139471f73602c4Ian Romanick /** 295baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry * Determine how this variable should be interpolated based on its 296baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry * interpolation qualifier (if present), whether it is gl_Color or 297baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry * gl_SecondaryColor, and whether flatshading is enabled in the current GL 298baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry * state. 299baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry * 300baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry * The return value will always be either INTERP_QUALIFIER_SMOOTH, 301baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry * INTERP_QUALIFIER_NOPERSPECTIVE, or INTERP_QUALIFIER_FLAT. 302baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry */ 303baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry glsl_interp_qualifier determine_interpolation_mode(bool flat_shade); 304baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry 305baf7f99fd7a092a1390b7a145e09caa5325a8116Paul Berry /** 306e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Delcared name of the variable 307e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 308a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick const char *name; 309a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 310b8a21cc6df7e9da15a24ed3dbf60cd4aeb8effaaIan Romanick /** 311b8a21cc6df7e9da15a24ed3dbf60cd4aeb8effaaIan Romanick * Highest element accessed with a constant expression array index 312b8a21cc6df7e9da15a24ed3dbf60cd4aeb8effaaIan Romanick * 313b8a21cc6df7e9da15a24ed3dbf60cd4aeb8effaaIan Romanick * Not used for non-array variables. 314b8a21cc6df7e9da15a24ed3dbf60cd4aeb8effaaIan Romanick */ 315b8a21cc6df7e9da15a24ed3dbf60cd4aeb8effaaIan Romanick unsigned max_array_access; 316b8a21cc6df7e9da15a24ed3dbf60cd4aeb8effaaIan Romanick 317e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 318e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Is the variable read-only? 319e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * 320e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * This is set for variables declared as \c const, shader inputs, 321e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * and uniforms. 322e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 323a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned read_only:1; 324a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned centroid:1; 325a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned invariant:1; 326a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 327e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 328bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick * Has this variable been used for reading or writing? 329bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick * 330bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick * Several GLSL semantic checks require knowledge of whether or not a 331bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick * variable has been used. For example, it is an error to redeclare a 332bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick * variable as invariant after it has been used. 333bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick */ 334bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick unsigned used:1; 335bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick 336bd33055ef4b6dd18d6247ff7d9e47496ff4acc51Ian Romanick /** 337e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Storage class of the variable. 338e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * 339e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * \sa ir_variable_mode 340e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 341a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned mode:3; 342e053d62aa573651abdd78666d299272c8219a3aaIan Romanick 343e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 344e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Interpolation mode for shader inputs / outputs 345e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * 346e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * \sa ir_variable_interpolation 347e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 348a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned interpolation:2; 3499d975377ca6dae7805804c0fbe625bb7c5f9e095Ian Romanick 3509d975377ca6dae7805804c0fbe625bb7c5f9e095Ian Romanick /** 351e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * \name ARB_fragment_coord_conventions 352e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * @{ 353e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 3544a962170d7cf4243d6ae156fca20a6167388925dEric Anholt unsigned origin_upper_left:1; 3554a962170d7cf4243d6ae156fca20a6167388925dEric Anholt unsigned pixel_center_integer:1; 356e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /*@}*/ 3574a962170d7cf4243d6ae156fca20a6167388925dEric Anholt 358326c676236e6a3c90db63e4d0c893aa4f9c21876Eric Anholt /** 359eee68d3631813580a14fa51fda6f0c959279256cIan Romanick * Was the location explicitly set in the shader? 360eee68d3631813580a14fa51fda6f0c959279256cIan Romanick * 361eee68d3631813580a14fa51fda6f0c959279256cIan Romanick * If the location is explicitly set in the shader, it \b cannot be changed 362eee68d3631813580a14fa51fda6f0c959279256cIan Romanick * by the linker or by the API (e.g., calls to \c glBindAttribLocation have 363eee68d3631813580a14fa51fda6f0c959279256cIan Romanick * no effect). 364eee68d3631813580a14fa51fda6f0c959279256cIan Romanick */ 365eee68d3631813580a14fa51fda6f0c959279256cIan Romanick unsigned explicit_location:1; 366eee68d3631813580a14fa51fda6f0c959279256cIan Romanick 367eee68d3631813580a14fa51fda6f0c959279256cIan Romanick /** 36822af08b410f47227ea27b06cce097ccbe0130540Ian Romanick * \brief Layout qualifier for gl_FragDepth. 36922af08b410f47227ea27b06cce097ccbe0130540Ian Romanick * 37022af08b410f47227ea27b06cce097ccbe0130540Ian Romanick * This is not equal to \c ir_depth_layout_none if and only if this 37122af08b410f47227ea27b06cce097ccbe0130540Ian Romanick * variable is \c gl_FragDepth and a layout qualifier is specified. 37222af08b410f47227ea27b06cce097ccbe0130540Ian Romanick */ 37322af08b410f47227ea27b06cce097ccbe0130540Ian Romanick ir_depth_layout depth_layout; 37422af08b410f47227ea27b06cce097ccbe0130540Ian Romanick 37522af08b410f47227ea27b06cce097ccbe0130540Ian Romanick /** 37669a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * Storage location of the base of this variable 37769a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * 37869a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * The precise meaning of this field depends on the nature of the variable. 37969a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * 38069a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * - Vertex shader input: one of the values from \c gl_vert_attrib. 38169a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * - Vertex shader output: one of the values from \c gl_vert_result. 38269a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * - Fragment shader input: one of the values from \c gl_frag_attrib. 38369a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * - Fragment shader output: one of the values from \c gl_frag_result. 38469a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * - Uniforms: Per-stage uniform slot number. 38569a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * - Other: This field is not currently used. 38669a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * 38769a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * If the variable is a uniform, shader input, or shader output, and the 38869a079aee8f79104501faeb2a5092b643f956d33Ian Romanick * slot has not been assigned, the value will be -1. 38969a079aee8f79104501faeb2a5092b643f956d33Ian Romanick */ 39069a079aee8f79104501faeb2a5092b643f956d33Ian Romanick int location; 39169a079aee8f79104501faeb2a5092b643f956d33Ian Romanick 39269a079aee8f79104501faeb2a5092b643f956d33Ian Romanick /** 39389d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * Built-in state that backs this uniform 39489d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * 39589d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * Once set at variable creation, \c state_slots must remain invariant. 39689d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * This is because, ideally, this array would be shared by all clones of 39789d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * this variable in the IR tree. In other words, we'd really like for it 39889d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * to be a fly-weight. 39989d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * 40089d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * If the variable is not a uniform, \c num_state_slots will be zero and 40189d81ab16c05818b290ed735c1343d3abde449bfIan Romanick * \c state_slots will be \c NULL. 40289d81ab16c05818b290ed735c1343d3abde449bfIan Romanick */ 40389d81ab16c05818b290ed735c1343d3abde449bfIan Romanick /*@{*/ 40489d81ab16c05818b290ed735c1343d3abde449bfIan Romanick unsigned num_state_slots; /**< Number of state slots used */ 40589d81ab16c05818b290ed735c1343d3abde449bfIan Romanick ir_state_slot *state_slots; /**< State descriptors. */ 40689d81ab16c05818b290ed735c1343d3abde449bfIan Romanick /*@}*/ 40789d81ab16c05818b290ed735c1343d3abde449bfIan Romanick 40889d81ab16c05818b290ed735c1343d3abde449bfIan Romanick /** 409c178c74c27ab292651dcf7da02a7d035366cae04Ian Romanick * Emit a warning if this variable is accessed. 410c178c74c27ab292651dcf7da02a7d035366cae04Ian Romanick */ 411c178c74c27ab292651dcf7da02a7d035366cae04Ian Romanick const char *warn_extension; 412c178c74c27ab292651dcf7da02a7d035366cae04Ian Romanick 413c178c74c27ab292651dcf7da02a7d035366cae04Ian Romanick /** 414326c676236e6a3c90db63e4d0c893aa4f9c21876Eric Anholt * Value assigned in the initializer of a variable declared "const" 415326c676236e6a3c90db63e4d0c893aa4f9c21876Eric Anholt */ 416326c676236e6a3c90db63e4d0c893aa4f9c21876Eric Anholt ir_constant *constant_value; 417a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 418a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 419a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 420a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick/*@{*/ 4219fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke/** 4229fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke * The representation of a function instance; may be the full definition or 4239fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke * simply a prototype. 4249fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke */ 425a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickclass ir_function_signature : public ir_instruction { 426894ea972a4defdaafeaa3a248c113b06c7ae0c7eEric Anholt /* An ir_function_signature will be part of the list of signatures in 427894ea972a4defdaafeaa3a248c113b06c7ae0c7eEric Anholt * an ir_function. 428894ea972a4defdaafeaa3a248c113b06c7ae0c7eEric Anholt */ 429a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 430e39cc69fa3cb830b803fe0c4f6c30915aa886b5bIan Romanick ir_function_signature(const glsl_type *return_type); 431a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 4328273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_function_signature *clone(void *mem_ctx, 4338273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt struct hash_table *ht) const; 43401a25bb64ecae156729794320f9a39733ff8eeaaKenneth Graunke ir_function_signature *clone_prototype(void *mem_ctx, 43501a25bb64ecae156729794320f9a39733ff8eeaaKenneth Graunke struct hash_table *ht) const; 4364b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 43778b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 43878b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 43978b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 44078b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 44178b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 4428895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 4438895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 444a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 4450f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick * Get the name of the function for which this is a signature 4460f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick */ 4470f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick const char *function_name() const; 4480f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick 4490f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick /** 450df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * Get a handle to the function for which this is a signature 451df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * 452df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * There is no setter function, this function returns a \c const pointer, 453df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * and \c ir_function_signature::_function is private for a reason. The 454df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * only way to make a connection between a function and function signature 455df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * is via \c ir_function::add_signature. This helps ensure that certain 456df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * invariants (i.e., a function signature is in the list of signatures for 457df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * its \c _function) are met. 458df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * 459df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick * \sa ir_function::add_signature 460df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick */ 461df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick inline const class ir_function *function() const 462df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick { 463df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick return this->_function; 464df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick } 465df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick 466df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick /** 467abd40b15210c17b2a3ba8fcffc868fda203efa01Kenneth Graunke * Check whether the qualifiers match between this signature's parameters 468abd40b15210c17b2a3ba8fcffc868fda203efa01Kenneth Graunke * and the supplied parameter list. If not, returns the name of the first 469abd40b15210c17b2a3ba8fcffc868fda203efa01Kenneth Graunke * parameter with mismatched qualifiers (for use in error messages). 470abd40b15210c17b2a3ba8fcffc868fda203efa01Kenneth Graunke */ 471abd40b15210c17b2a3ba8fcffc868fda203efa01Kenneth Graunke const char *qualifiers_match(exec_list *params); 472abd40b15210c17b2a3ba8fcffc868fda203efa01Kenneth Graunke 473abd40b15210c17b2a3ba8fcffc868fda203efa01Kenneth Graunke /** 474bff6013d469b3d4e54cdc5731801c56994a523ecKenneth Graunke * Replace the current parameter list with the given one. This is useful 475bff6013d469b3d4e54cdc5731801c56994a523ecKenneth Graunke * if the current information came from a prototype, and either has invalid 476bff6013d469b3d4e54cdc5731801c56994a523ecKenneth Graunke * or missing parameter names. 477bff6013d469b3d4e54cdc5731801c56994a523ecKenneth Graunke */ 478bff6013d469b3d4e54cdc5731801c56994a523ecKenneth Graunke void replace_parameters(exec_list *new_params); 479bff6013d469b3d4e54cdc5731801c56994a523ecKenneth Graunke 480bff6013d469b3d4e54cdc5731801c56994a523ecKenneth Graunke /** 481a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Function return type. 482a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 483a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * \note This discards the optional precision qualifier. 484a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 485a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick const struct glsl_type *return_type; 486a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 487a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 488f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt * List of ir_variable of function parameters. 489f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt * 490f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt * This represents the storage. The paramaters passed in a particular 491f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt * call will be in ir_call::actual_paramaters. 492a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 4930044e7edcea22d2456c051a1c4b744a26960ad27Ian Romanick struct exec_list parameters; 494a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 4959fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke /** Whether or not this function has a body (which may be empty). */ 4969fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke unsigned is_defined:1; 4976a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick 498f412fac5b46eb274cbed8e62234d5dbfd859f1feKenneth Graunke /** Whether or not this function signature is a built-in. */ 499f412fac5b46eb274cbed8e62234d5dbfd859f1feKenneth Graunke unsigned is_builtin:1; 500f412fac5b46eb274cbed8e62234d5dbfd859f1feKenneth Graunke 501894ea972a4defdaafeaa3a248c113b06c7ae0c7eEric Anholt /** Body of instructions in the function. */ 502894ea972a4defdaafeaa3a248c113b06c7ae0c7eEric Anholt struct exec_list body; 503894ea972a4defdaafeaa3a248c113b06c7ae0c7eEric Anholt 5046a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanickprivate: 5056a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick /** Function of which this signature is one overload. */ 506df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick class ir_function *_function; 5076a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick 5086a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick friend class ir_function; 509a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 510a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 511a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 512a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick/** 5139fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke * Header for tracking multiple overloaded functions with the same name. 5149fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke * Contains a list of ir_function_signatures representing each of the 5159fa99f3b6c84fe927ba97e6584cd919f097a6c9aKenneth Graunke * actual functions. 516a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 517a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickclass ir_function : public ir_instruction { 518a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 519882dad75408fc4071a9dd700309f9e54f6ad2650Ian Romanick ir_function(const char *name); 520a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 5218273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_function *clone(void *mem_ctx, struct hash_table *ht) const; 5224b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 5236202cbfe3614141e330501959a7322522b35f4e4Kenneth Graunke virtual ir_function *as_function() 5246202cbfe3614141e330501959a7322522b35f4e4Kenneth Graunke { 5256202cbfe3614141e330501959a7322522b35f4e4Kenneth Graunke return this; 5266202cbfe3614141e330501959a7322522b35f4e4Kenneth Graunke } 5276202cbfe3614141e330501959a7322522b35f4e4Kenneth Graunke 52878b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 52978b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 53078b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 53178b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 53278b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 5338895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 5348895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 5356a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick void add_signature(ir_function_signature *sig) 5366a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick { 537df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick sig->_function = this; 538df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick this->signatures.push_tail(sig); 5396a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick } 5406a15d5b514b703ff8dd024f96ffbcb68484a954eIan Romanick 541a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 54295cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick * Get an iterator for the set of function signatures 54395cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick */ 54495cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick exec_list_iterator iterator() 54595cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick { 54695cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick return signatures.iterator(); 54795cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick } 54895cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick 54995cd6cc195f4652378d7ecf614c6e1c568311a04Ian Romanick /** 5500d605cb97c9cd2f9a170e3aa15bdf4021a75fc14Kenneth Graunke * Find a signature that matches a set of actual parameters, taking implicit 5510d605cb97c9cd2f9a170e3aa15bdf4021a75fc14Kenneth Graunke * conversions into account. 552471471f83471481db0445e73f8c89e6a9149838eIan Romanick */ 553b95897b89d36a25c237a021c299a4eb295856476Ian Romanick ir_function_signature *matching_signature(const exec_list *actual_param); 554471471f83471481db0445e73f8c89e6a9149838eIan Romanick 555471471f83471481db0445e73f8c89e6a9149838eIan Romanick /** 5560d605cb97c9cd2f9a170e3aa15bdf4021a75fc14Kenneth Graunke * Find a signature that exactly matches a set of actual parameters without 5570d605cb97c9cd2f9a170e3aa15bdf4021a75fc14Kenneth Graunke * any implicit type conversions. 5580d605cb97c9cd2f9a170e3aa15bdf4021a75fc14Kenneth Graunke */ 559b95897b89d36a25c237a021c299a4eb295856476Ian Romanick ir_function_signature *exact_matching_signature(const exec_list *actual_ps); 5600d605cb97c9cd2f9a170e3aa15bdf4021a75fc14Kenneth Graunke 5610d605cb97c9cd2f9a170e3aa15bdf4021a75fc14Kenneth Graunke /** 562a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Name of the function. 563a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 564a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick const char *name; 565a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 56681f03393982c29f8f4165b5629c8e8fb708b97a3Kenneth Graunke /** Whether or not this function has a signature that isn't a built-in. */ 56781f03393982c29f8f4165b5629c8e8fb708b97a3Kenneth Graunke bool has_user_signature(); 568b6f15869b324ae64a00d0fe46fa3c8c62c1edb6cKenneth Graunke 569471471f83471481db0445e73f8c89e6a9149838eIan Romanick /** 570f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt * List of ir_function_signature for each overloaded function with this name. 571471471f83471481db0445e73f8c89e6a9149838eIan Romanick */ 5720044e7edcea22d2456c051a1c4b744a26960ad27Ian Romanick struct exec_list signatures; 573a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 5740f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick 5750f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanickinline const char *ir_function_signature::function_name() const 5760f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick{ 577df05ad4e1aa5512ce1dfd2e6661641e012c8b279Ian Romanick return this->_function->name; 5780f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick} 579a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick/*@}*/ 580a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 581a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 5823c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick/** 5833c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick * IR instruction representing high-level if-statements 5843c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick */ 5853c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanickclass ir_if : public ir_instruction { 5863c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanickpublic: 5873c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick ir_if(ir_rvalue *condition) 5883c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick : condition(condition) 5893c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick { 590d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type = ir_type_if; 5913c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick } 5923c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick 5938273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_if *clone(void *mem_ctx, struct hash_table *ht) const; 5944b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 5955ba94206083fcd678febd6cac0231f35c0f1b77aEric Anholt virtual ir_if *as_if() 5965ba94206083fcd678febd6cac0231f35c0f1b77aEric Anholt { 5975ba94206083fcd678febd6cac0231f35c0f1b77aEric Anholt return this; 5985ba94206083fcd678febd6cac0231f35c0f1b77aEric Anholt } 5995ba94206083fcd678febd6cac0231f35c0f1b77aEric Anholt 6003c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick virtual void accept(ir_visitor *v) 6013c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick { 6023c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick v->visit(this); 6033c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick } 6043c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick 6058895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 6068895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 6073c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick ir_rvalue *condition; 608f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt /** List of ir_instruction for the body of the then branch */ 6093c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick exec_list then_instructions; 610f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt /** List of ir_instruction for the body of the else branch */ 6113c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick exec_list else_instructions; 6123c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick}; 6133c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick 6143c6fea3048a0d9add2fec621d30c32f3519d8868Ian Romanick 615fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick/** 616fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick * IR instruction representing a high-level loop structure. 617fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick */ 618fad607a9be59056aecda50176b4d20a8b5319747Ian Romanickclass ir_loop : public ir_instruction { 619fad607a9be59056aecda50176b4d20a8b5319747Ian Romanickpublic: 6203b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick ir_loop(); 621fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick 6228273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_loop *clone(void *mem_ctx, struct hash_table *ht) const; 6234b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 624fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick virtual void accept(ir_visitor *v) 625fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick { 626fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick v->visit(this); 627fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick } 628fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick 6298895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 6308895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 63101f8de4a87157b01e8b9fe31c6766a15bbfb2788Ian Romanick virtual ir_loop *as_loop() 63201f8de4a87157b01e8b9fe31c6766a15bbfb2788Ian Romanick { 63301f8de4a87157b01e8b9fe31c6766a15bbfb2788Ian Romanick return this; 63401f8de4a87157b01e8b9fe31c6766a15bbfb2788Ian Romanick } 63501f8de4a87157b01e8b9fe31c6766a15bbfb2788Ian Romanick 636fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick /** 637fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick * Get an iterator for the instructions of the loop body 638fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick */ 639fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick exec_list_iterator iterator() 640fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick { 641fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick return body_instructions.iterator(); 642fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick } 643fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick 644f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt /** List of ir_instruction that make up the body of the loop. */ 645fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick exec_list body_instructions; 646fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick 647fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick /** 648fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick * \name Loop counter and controls 6493b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * 6503b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * Represents a loop like a FORTRAN \c do-loop. 6513b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * 6523b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * \note 6533b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * If \c from and \c to are the same value, the loop will execute once. 654fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick */ 655fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick /*@{*/ 6563b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick ir_rvalue *from; /** Value of the loop counter on the first 6573b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * iteration of the loop. 6583b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick */ 6593b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick ir_rvalue *to; /** Value of the loop counter on the last 6603b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * iteration of the loop. 6613b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick */ 662fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick ir_rvalue *increment; 663fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick ir_variable *counter; 6643b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick 6653b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick /** 6663b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * Comparison operation in the loop terminator. 6673b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * 6683b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * If any of the loop control fields are non-\c NULL, this field must be 6693b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * one of \c ir_binop_less, \c ir_binop_greater, \c ir_binop_lequal, 6703b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick * \c ir_binop_gequal, \c ir_binop_equal, or \c ir_binop_nequal. 6713b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick */ 6723b85f1cc6cb12e9d4931e12cf29adde578f389fdIan Romanick int cmp; 673fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick /*@}*/ 674fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick}; 675fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick 676fad607a9be59056aecda50176b4d20a8b5319747Ian Romanick 6773c033637de7def553559c11d037f2e8bbb750f77Kenneth Graunkeclass ir_assignment : public ir_instruction { 678a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 679e617a53a74cd27a322fd2dd05ff1c66c6437fde3Eric Anholt ir_assignment(ir_rvalue *lhs, ir_rvalue *rhs, ir_rvalue *condition = NULL); 680a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 6815a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick /** 6825a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * Construct an assignment with an explicit write mask 6835a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * 6845a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * \note 6855a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * Since a write mask is supplied, the LHS must already be a bare 6865a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * \c ir_dereference. The cannot be any swizzles in the LHS. 6875a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick */ 6885a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick ir_assignment(ir_dereference *lhs, ir_rvalue *rhs, ir_rvalue *condition, 6895a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick unsigned write_mask); 6905a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick 6918273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_assignment *clone(void *mem_ctx, struct hash_table *ht) const; 6924b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 693fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke virtual ir_constant *constant_expression_value(); 694fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 69578b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 69678b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 69778b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 69878b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 69978b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 7008895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 7018895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 702cad9766118d269725ef33b4e9588d674d5225010Eric Anholt virtual ir_assignment * as_assignment() 703cad9766118d269725ef33b4e9588d674d5225010Eric Anholt { 704cad9766118d269725ef33b4e9588d674d5225010Eric Anholt return this; 705cad9766118d269725ef33b4e9588d674d5225010Eric Anholt } 706cad9766118d269725ef33b4e9588d674d5225010Eric Anholt 707a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 7085a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * Get a whole variable written by an assignment 7095a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * 7105a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * If the LHS of the assignment writes a whole variable, the variable is 7115a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * returned. Otherwise \c NULL is returned. Examples of whole-variable 7125a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * assignment are: 7135a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * 7145a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * - Assigning to a scalar 7155a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * - Assigning to all components of a vector 7165a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * - Whole array (or matrix) assignment 7175a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * - Whole structure assignment 7185a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick */ 7195a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick ir_variable *whole_variable_written(); 7205a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick 7215a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick /** 7225a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * Set the LHS of an assignment 7235a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick */ 7245a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick void set_lhs(ir_rvalue *lhs); 7255a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick 7265a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick /** 727a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Left-hand side of the assignment. 7285a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * 7295a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * This should be treated as read only. If you need to set the LHS of an 7305a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * assignment, use \c ir_assignment::set_lhs. 731a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 7325a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick ir_dereference *lhs; 733a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 734a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 735a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Value being assigned 736a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 737fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *rhs; 738a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 739a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 740a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Optional condition for the assignment. 741a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 742fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *condition; 7435a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick 7445a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick 7455a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick /** 7465a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * Component mask written 7475a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * 7485a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * For non-vector types in the LHS, this field will be zero. For vector 7495a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * types, a bit will be set for each component that is written. Note that 7505a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick * for \c vec2 and \c vec3 types only the lower bits will ever be set. 751b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * 752b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * A partially-set write mask means that each enabled channel gets 753b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * the value from a consecutive channel of the rhs. For example, 754b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * to write just .xyw of gl_FrontColor with color: 755b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * 756b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * (assign (constant bool (1)) (xyw) 757b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * (var_ref gl_FragColor) 758b39e6f33b60ef9bbaf81f320aaca6a440d8a6a8fEric Anholt * (swiz xyw (var_ref color))) 7595a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick */ 7605a7758efbe14dee026245a4f4f4fb3ccf7b2c23bIan Romanick unsigned write_mask:4; 761a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 762a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 7633b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke/* Update ir_expression::num_operands() and operator_strs when 764160d092507c1ca341b7c5c88e5ba94b4cf5fb7d0Eric Anholt * updating this list. 7653b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke */ 766a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickenum ir_expression_operation { 767a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_bit_not, 768a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_logic_not, 769a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_neg, 770a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_abs, 771a4b7b5a654ca810e296bb0cca1b27b8847f5548aKenneth Graunke ir_unop_sign, 772a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_rcp, 773a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_rsq, 77444d68fd06ff8b53fc70a9a07c897dda9b3457ef8Eric Anholt ir_unop_sqrt, 775bc4034b243975089c06c4415d4e26edaaaec7a46Eric Anholt ir_unop_exp, /**< Log base e on gentype */ 776bc4034b243975089c06c4415d4e26edaaaec7a46Eric Anholt ir_unop_log, /**< Natural log on gentype */ 77701665262e50162e858c45f92a8a7e12b953e56adEric Anholt ir_unop_exp2, 77801665262e50162e858c45f92a8a7e12b953e56adEric Anholt ir_unop_log2, 779a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_f2i, /**< Float-to-integer conversion. */ 780a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_i2f, /**< Integer-to-float conversion. */ 781dc58b3f8ccd817fdee390a3df5b8e0fb29d5397cEric Anholt ir_unop_f2b, /**< Float-to-boolean conversion */ 782dc58b3f8ccd817fdee390a3df5b8e0fb29d5397cEric Anholt ir_unop_b2f, /**< Boolean-to-float conversion */ 783c2cb84e17b2f7a5db146faa9c9c2a2ffac4b6c19Eric Anholt ir_unop_i2b, /**< int-to-boolean conversion */ 784c2cb84e17b2f7a5db146faa9c9c2a2ffac4b6c19Eric Anholt ir_unop_b2i, /**< Boolean-to-int conversion */ 7856c86ea8adc095abeef7b3cd63d3321185542bf36Ian Romanick ir_unop_u2f, /**< Unsigned-to-float conversion. */ 78620ef96c7ff3f17fbf97e0452a37553249b2b005cBryan Cain ir_unop_i2u, /**< Integer-to-unsigned conversion. */ 78720ef96c7ff3f17fbf97e0452a37553249b2b005cBryan Cain ir_unop_u2i, /**< Unsigned-to-integer conversion. */ 7885e9ac94cc44ef4f97063d7b696411b2a4be16f36Eric Anholt ir_unop_any, 789a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 790a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 791a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * \name Unary floating-point rounding operations. 792a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 793a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@{*/ 794a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_trunc, 795a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_ceil, 796a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_unop_floor, 797d925c9173009e9e5d48df30b30aaef22753183aaEric Anholt ir_unop_fract, 798d85d25dd1f4fd281bd210ba6ba5135ba1e3b535fKenneth Graunke ir_unop_round_even, 799a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@}*/ 800a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 80157e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke /** 80257e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke * \name Trigonometric operations. 80357e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke */ 80457e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke /*@{*/ 80557e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke ir_unop_sin, 80657e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke ir_unop_cos, 807f2616e56de8a48360cae8f269727b58490555f4dIan Romanick ir_unop_sin_reduced, /**< Reduced range sin. [-pi, pi] */ 808f2616e56de8a48360cae8f269727b58490555f4dIan Romanick ir_unop_cos_reduced, /**< Reduced range cos. [-pi, pi] */ 80957e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke /*@}*/ 81057e7da173e8d38bf0c95ded535cdf1b12a00a1a2Kenneth Graunke 811b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke /** 812b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke * \name Partial derivatives. 813b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke */ 814b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke /*@{*/ 815b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke ir_unop_dFdx, 816b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke ir_unop_dFdy, 817b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke /*@}*/ 818b843c7a20c2d65494f30eb82622ae7db380f581aKenneth Graunke 8193a5ce85cfa4914711e56c8cf831699242618928eIan Romanick ir_unop_noise, 8203a5ce85cfa4914711e56c8cf831699242618928eIan Romanick 821007f4881503b69055d65cfb20bd237673779786bKenneth Graunke /** 822007f4881503b69055d65cfb20bd237673779786bKenneth Graunke * A sentinel marking the last of the unary operations. 823007f4881503b69055d65cfb20bd237673779786bKenneth Graunke */ 824007f4881503b69055d65cfb20bd237673779786bKenneth Graunke ir_last_unop = ir_unop_noise, 825007f4881503b69055d65cfb20bd237673779786bKenneth Graunke 826a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_add, 827a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_sub, 828a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_mul, 829a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_div, 8308a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt 8318a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt /** 8328a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt * Takes one of two combinations of arguments: 8338a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt * 8348a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt * - mod(vecN, vecN) 8358a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt * - mod(vecN, float) 8368a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt * 8378a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt * Does not take integer types. 8388a1f186cc55979bb9df0a88b48da8d81460c3e7cEric Anholt */ 839a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_mod, 840a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 841a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 84214eea268284491d64ff92b37723bff1e9ff14b40Kenneth Graunke * \name Binary comparison operators which return a boolean vector. 84314eea268284491d64ff92b37723bff1e9ff14b40Kenneth Graunke * The type of both operands must be equal. 844a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 845a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@{*/ 846a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_less, 847a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_greater, 848a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_lequal, 849a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_gequal, 8504dfb89904c0a3d2166e9a3fc0253a254680e91bcLuca Barbieri ir_binop_equal, 8514dfb89904c0a3d2166e9a3fc0253a254680e91bcLuca Barbieri ir_binop_nequal, 852832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt /** 853832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt * Returns single boolean for whether all components of operands[0] 854832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt * equal the components of operands[1]. 855832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt */ 8564dfb89904c0a3d2166e9a3fc0253a254680e91bcLuca Barbieri ir_binop_all_equal, 857832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt /** 858832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt * Returns single boolean for whether any component of operands[0] 859832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt * is not equal to the corresponding component of operands[1]. 860832aad989e3d319a8aaac046aa49df25da134d82Eric Anholt */ 8614dfb89904c0a3d2166e9a3fc0253a254680e91bcLuca Barbieri ir_binop_any_nequal, 862a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@}*/ 863a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 864a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 865a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * \name Bit-wise binary operations. 866a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 867a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@{*/ 868a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_lshift, 869a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_rshift, 870a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_bit_and, 871a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_bit_xor, 872a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_bit_or, 873a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /*@}*/ 874a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 875a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_logic_and, 876a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_logic_xor, 877a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_logic_or, 878a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 879a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_dot, 880a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_min, 881a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_binop_max, 882a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 883007f4881503b69055d65cfb20bd237673779786bKenneth Graunke ir_binop_pow, 884007f4881503b69055d65cfb20bd237673779786bKenneth Graunke 885007f4881503b69055d65cfb20bd237673779786bKenneth Graunke /** 886007f4881503b69055d65cfb20bd237673779786bKenneth Graunke * A sentinel marking the last of the binary operations. 887007f4881503b69055d65cfb20bd237673779786bKenneth Graunke */ 888007f4881503b69055d65cfb20bd237673779786bKenneth Graunke ir_last_binop = ir_binop_pow, 889007f4881503b69055d65cfb20bd237673779786bKenneth Graunke 89011d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick ir_quadop_vector, 89111d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick 892007f4881503b69055d65cfb20bd237673779786bKenneth Graunke /** 893007f4881503b69055d65cfb20bd237673779786bKenneth Graunke * A sentinel marking the last of all operations. 894007f4881503b69055d65cfb20bd237673779786bKenneth Graunke */ 895007f4881503b69055d65cfb20bd237673779786bKenneth Graunke ir_last_opcode = ir_last_binop 896a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 897a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 898fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_expression : public ir_rvalue { 899a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 90013f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick /** 90113f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick * Constructor for unary operation expressions 90213f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick */ 90313f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick ir_expression(int op, const struct glsl_type *type, ir_rvalue *); 9046b937465d4aeab72fabcfe5250d477cf6790a521Eric Anholt ir_expression(int op, ir_rvalue *); 90513f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick 90613f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick /** 90713f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick * Constructor for binary operation expressions 90813f57d42b6929f50d8ef8b4123f46a61c46fde7bIan Romanick */ 909a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_expression(int op, const struct glsl_type *type, 910fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *, ir_rvalue *); 9116b937465d4aeab72fabcfe5250d477cf6790a521Eric Anholt ir_expression(int op, ir_rvalue *op0, ir_rvalue *op1); 912a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 91311d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick /** 91411d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick * Constructor for quad operator expressions 91511d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick */ 91611d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick ir_expression(int op, const struct glsl_type *type, 91711d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick ir_rvalue *, ir_rvalue *, ir_rvalue *, ir_rvalue *); 91811d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick 9196d8a0a0aadaafbab02dffcf7f89eb0210dd37b2eEric Anholt virtual ir_expression *as_expression() 9206d8a0a0aadaafbab02dffcf7f89eb0210dd37b2eEric Anholt { 9216d8a0a0aadaafbab02dffcf7f89eb0210dd37b2eEric Anholt return this; 9226d8a0a0aadaafbab02dffcf7f89eb0210dd37b2eEric Anholt } 9236d8a0a0aadaafbab02dffcf7f89eb0210dd37b2eEric Anholt 9248273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_expression *clone(void *mem_ctx, struct hash_table *ht) const; 9254b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 926e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 927e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Attempt to constant-fold the expression 928e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * 929e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * If the expression cannot be constant folded, this method will return 930e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * \c NULL. 931e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 932fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke virtual ir_constant *constant_expression_value(); 933fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 934e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 935e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Determine the number of operands used by an expression 936e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 9377dd6adbe2e791b22de97175a8715ef1217619c99Kenneth Graunke static unsigned int get_num_operands(ir_expression_operation); 938e053d62aa573651abdd78666d299272c8219a3aaIan Romanick 939e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 940e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Determine the number of operands used by an expression 941e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 9424b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt unsigned int get_num_operands() const 9437dd6adbe2e791b22de97175a8715ef1217619c99Kenneth Graunke { 94411d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick return (this->operation == ir_quadop_vector) 94511d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick ? this->type->vector_elements : get_num_operands(operation); 9467dd6adbe2e791b22de97175a8715ef1217619c99Kenneth Graunke } 947160d092507c1ca341b7c5c88e5ba94b4cf5fb7d0Eric Anholt 9483b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke /** 9493b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke * Return a string representing this expression's operator. 9503b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke */ 9513b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke const char *operator_string(); 9523b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke 9533b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke /** 954351525d534268b08c090f9ce42a67e9329a969aeIan Romanick * Return a string representing this expression's operator. 955351525d534268b08c090f9ce42a67e9329a969aeIan Romanick */ 956351525d534268b08c090f9ce42a67e9329a969aeIan Romanick static const char *operator_string(ir_expression_operation); 957351525d534268b08c090f9ce42a67e9329a969aeIan Romanick 958351525d534268b08c090f9ce42a67e9329a969aeIan Romanick 959351525d534268b08c090f9ce42a67e9329a969aeIan Romanick /** 9603b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke * Do a reverse-lookup to translate the given string into an operator. 9613b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke */ 9623b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke static ir_expression_operation get_operator(const char *); 9633b96996b7eb6e3603a5f138177867c3e856e0dfaKenneth Graunke 96478b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 96578b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 96678b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 96778b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 96878b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 9698895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 9708895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 971a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick ir_expression_operation operation; 97211d6f1c69871d0b7edc28f639256460839fccd2dIan Romanick ir_rvalue *operands[4]; 973a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 974a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 975a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 976ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick/** 977ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick * IR instruction representing a function call 978ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick */ 979fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_call : public ir_rvalue { 980ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanickpublic: 9811f47245bdda2c85bf0f0174e6c24a50486b413aaEric Anholt ir_call(ir_function_signature *callee, exec_list *actual_parameters) 982b427c917ce47675b102fac3ddace883629ff6be8Ian Romanick : callee(callee) 983ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick { 984d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type = ir_type_call; 9859e7c34b865309c65ea5a763900e2d0eae4b58ce5Ian Romanick assert(callee->return_type != NULL); 9869e7c34b865309c65ea5a763900e2d0eae4b58ce5Ian Romanick type = callee->return_type; 987471471f83471481db0445e73f8c89e6a9149838eIan Romanick actual_parameters->move_nodes_to(& this->actual_parameters); 98866f4ac988d5053c9782d1390541b04f4d9c50078Ian Romanick this->use_builtin = callee->is_builtin; 989ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick } 990ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick 9918273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_call *clone(void *mem_ctx, struct hash_table *ht) const; 9924b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 993fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke virtual ir_constant *constant_expression_value(); 994fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 995cad9766118d269725ef33b4e9588d674d5225010Eric Anholt virtual ir_call *as_call() 996cad9766118d269725ef33b4e9588d674d5225010Eric Anholt { 997cad9766118d269725ef33b4e9588d674d5225010Eric Anholt return this; 998cad9766118d269725ef33b4e9588d674d5225010Eric Anholt } 999cad9766118d269725ef33b4e9588d674d5225010Eric Anholt 1000ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick virtual void accept(ir_visitor *v) 1001ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick { 1002ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick v->visit(this); 1003ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick } 1004ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick 10058895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 10068895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 1007ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick /** 1008ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick * Get a generic ir_call object when an error occurs 1009e01193af325cbdde51b3219c85c58f19d5a87f1bCarl Worth * 1010d3073f58c17d8675a2ecdd5dfa83e5520c78e1a8Kenneth Graunke * Any allocation will be performed with 'ctx' as ralloc owner. 1011ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick */ 1012e01193af325cbdde51b3219c85c58f19d5a87f1bCarl Worth static ir_call *get_error_instruction(void *ctx); 1013ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick 10149878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick /** 10159878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick * Get an iterator for the set of acutal parameters 10169878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick */ 10179878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick exec_list_iterator iterator() 10189878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick { 10199878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick return actual_parameters.iterator(); 10209878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick } 10219878c6518f7938bd5fdae22265dd30bc72d7343cIan Romanick 102293614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick /** 102393614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick * Get the name of the function being called. 102493614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick */ 102593614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick const char *callee_name() const 102693614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick { 10270f0ea5826454cf25d6e76ac848a317e673ff1032Ian Romanick return callee->function_name(); 102893614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick } 102993614bc4b971bb59824179057a4bfa7aac383ce3Ian Romanick 1030e053d62aa573651abdd78666d299272c8219a3aaIan Romanick /** 1031e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Get the function signature bound to this function call 1032e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 10331f47245bdda2c85bf0f0174e6c24a50486b413aaEric Anholt ir_function_signature *get_callee() 1034cad9766118d269725ef33b4e9588d674d5225010Eric Anholt { 1035cad9766118d269725ef33b4e9588d674d5225010Eric Anholt return callee; 1036cad9766118d269725ef33b4e9588d674d5225010Eric Anholt } 1037cad9766118d269725ef33b4e9588d674d5225010Eric Anholt 1038cad9766118d269725ef33b4e9588d674d5225010Eric Anholt /** 1039792e01c1e259077eb339af3ce61905fd227ae4bdIan Romanick * Set the function call target 1040792e01c1e259077eb339af3ce61905fd227ae4bdIan Romanick */ 10411f47245bdda2c85bf0f0174e6c24a50486b413aaEric Anholt void set_callee(ir_function_signature *sig); 1042792e01c1e259077eb339af3ce61905fd227ae4bdIan Romanick 1043792e01c1e259077eb339af3ce61905fd227ae4bdIan Romanick /** 1044cad9766118d269725ef33b4e9588d674d5225010Eric Anholt * Generates an inline version of the function before @ir, 1045cad9766118d269725ef33b4e9588d674d5225010Eric Anholt * returning the return value of the function. 1046cad9766118d269725ef33b4e9588d674d5225010Eric Anholt */ 1047cad9766118d269725ef33b4e9588d674d5225010Eric Anholt ir_rvalue *generate_inline(ir_instruction *ir); 1048cad9766118d269725ef33b4e9588d674d5225010Eric Anholt 1049a48a2b66e86d6d1c2fbb24bc60df2fdef42b3086Ian Romanick /* List of ir_rvalue of paramaters passed in this call. */ 1050a48a2b66e86d6d1c2fbb24bc60df2fdef42b3086Ian Romanick exec_list actual_parameters; 1051a48a2b66e86d6d1c2fbb24bc60df2fdef42b3086Ian Romanick 105266f4ac988d5053c9782d1390541b04f4d9c50078Ian Romanick /** Should this call only bind to a built-in function? */ 105366f4ac988d5053c9782d1390541b04f4d9c50078Ian Romanick bool use_builtin; 105466f4ac988d5053c9782d1390541b04f4d9c50078Ian Romanick 1055ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanickprivate: 1056471471f83471481db0445e73f8c89e6a9149838eIan Romanick ir_call() 1057b427c917ce47675b102fac3ddace883629ff6be8Ian Romanick : callee(NULL) 1058471471f83471481db0445e73f8c89e6a9149838eIan Romanick { 1059d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt this->ir_type = ir_type_call; 1060471471f83471481db0445e73f8c89e6a9149838eIan Romanick } 1061471471f83471481db0445e73f8c89e6a9149838eIan Romanick 10621f47245bdda2c85bf0f0174e6c24a50486b413aaEric Anholt ir_function_signature *callee; 1063ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick}; 1064ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick 1065ed45ec6a515f3529f12fc23d51621e435d3b6cdfIan Romanick 10669578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick/** 10679578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick * \name Jump-like IR instructions. 10689578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick * 10699578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick * These include \c break, \c continue, \c return, and \c discard. 10709578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick */ 10719578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick/*@{*/ 10729578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanickclass ir_jump : public ir_instruction { 10739578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanickprotected: 10749578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick ir_jump() 10759578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 1076d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt ir_type = ir_type_unset; 10779578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 10789578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick}; 10799578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 10809578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanickclass ir_return : public ir_jump { 10819578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanickpublic: 10829578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick ir_return() 10839578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick : value(NULL) 10849578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 1085d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt this->ir_type = ir_type_return; 10869578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 10879578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 1088fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_return(ir_rvalue *value) 10899578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick : value(value) 10909578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 1091d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt this->ir_type = ir_type_return; 10929578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 10939578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 10948273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_return *clone(void *mem_ctx, struct hash_table *) const; 10954b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 1096cad9766118d269725ef33b4e9588d674d5225010Eric Anholt virtual ir_return *as_return() 1097cad9766118d269725ef33b4e9588d674d5225010Eric Anholt { 1098cad9766118d269725ef33b4e9588d674d5225010Eric Anholt return this; 1099cad9766118d269725ef33b4e9588d674d5225010Eric Anholt } 1100cad9766118d269725ef33b4e9588d674d5225010Eric Anholt 1101fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *get_value() const 11029578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 11039578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick return value; 11049578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 11059578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 11069578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick virtual void accept(ir_visitor *v) 11079578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick { 11089578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick v->visit(this); 11099578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick } 11109578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 11118895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 11128895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 1113fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke ir_rvalue *value; 11149578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick}; 1115f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick 1116f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick 1117f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick/** 1118f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick * Jump instructions used inside loops 1119f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick * 1120f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick * These include \c break and \c continue. The \c break within a loop is 1121f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick * different from the \c break within a switch-statement. 1122f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick * 1123f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick * \sa ir_switch_jump 1124f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick */ 1125f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanickclass ir_loop_jump : public ir_jump { 1126f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanickpublic: 1127f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick enum jump_mode { 1128f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick jump_break, 1129f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick jump_continue 1130f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick }; 1131f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick 11324b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt ir_loop_jump(jump_mode mode) 1133f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick { 1134d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt this->ir_type = ir_type_loop_jump; 11350c005bd773784ee5feb2ee3d7d00c2c4335eafb4Eric Anholt this->mode = mode; 11360c005bd773784ee5feb2ee3d7d00c2c4335eafb4Eric Anholt this->loop = loop; 1137f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick } 1138f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick 11398273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_loop_jump *clone(void *mem_ctx, struct hash_table *) const; 11404b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 1141f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick virtual void accept(ir_visitor *v) 1142f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick { 1143f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick v->visit(this); 1144f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick } 1145f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick 11468895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 11478895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 1148f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick bool is_break() const 1149f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick { 1150f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick return mode == jump_break; 1151f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick } 1152f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick 1153f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick bool is_continue() const 1154f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick { 1155f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick return mode == jump_continue; 1156f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick } 1157f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick 1158f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick /** Mode selector for the jump instruction. */ 1159f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick enum jump_mode mode; 11600c005bd773784ee5feb2ee3d7d00c2c4335eafb4Eric Anholtprivate: 11610c005bd773784ee5feb2ee3d7d00c2c4335eafb4Eric Anholt /** Loop containing this break instruction. */ 11620c005bd773784ee5feb2ee3d7d00c2c4335eafb4Eric Anholt ir_loop *loop; 1163f8e31e00b1078dc28187a43a1ab8949e154e7533Ian Romanick}; 116416efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke 116516efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke/** 116616efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke * IR instruction representing discard statements. 116716efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke */ 116816efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunkeclass ir_discard : public ir_jump { 116916efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunkepublic: 117016efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke ir_discard() 117116efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke { 1172d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt this->ir_type = ir_type_discard; 117316efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke this->condition = NULL; 117416efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke } 117516efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke 117616efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke ir_discard(ir_rvalue *cond) 117716efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke { 117884ee01f40acf88185484df386b7715034e7685c9Aras Pranckevicius this->ir_type = ir_type_discard; 117916efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke this->condition = cond; 118016efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke } 118116efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke 11828273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_discard *clone(void *mem_ctx, struct hash_table *ht) const; 118316efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke 118416efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke virtual void accept(ir_visitor *v) 118516efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke { 118616efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke v->visit(this); 118716efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke } 118816efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke 118916efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke virtual ir_visitor_status accept(ir_hierarchical_visitor *); 119016efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke 11911eb7a81f2e43842acd59929ce65db2142b69134dKenneth Graunke virtual ir_discard *as_discard() 11921eb7a81f2e43842acd59929ce65db2142b69134dKenneth Graunke { 11931eb7a81f2e43842acd59929ce65db2142b69134dKenneth Graunke return this; 11941eb7a81f2e43842acd59929ce65db2142b69134dKenneth Graunke } 11951eb7a81f2e43842acd59929ce65db2142b69134dKenneth Graunke 119616efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke ir_rvalue *condition; 119716efab1c4dee6e6a827ba5f1c482378159545ae5Kenneth Graunke}; 11989578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick/*@}*/ 11999578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 12009578c87ce23a98472d52f15b0a7063f4df036c4dIan Romanick 120181377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick/** 120281377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * Texture sampling opcodes used in ir_texture 120381377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick */ 120481377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanickenum ir_texture_opcode { 1205e053d62aa573651abdd78666d299272c8219a3aaIan Romanick ir_tex, /**< Regular texture look-up */ 1206e053d62aa573651abdd78666d299272c8219a3aaIan Romanick ir_txb, /**< Texture look-up with LOD bias */ 1207e053d62aa573651abdd78666d299272c8219a3aaIan Romanick ir_txl, /**< Texture look-up with explicit LOD */ 1208e053d62aa573651abdd78666d299272c8219a3aaIan Romanick ir_txd, /**< Texture look-up with partial derivatvies */ 12091e3bcbdf31f09666ba358f35ff9486faee3642caKenneth Graunke ir_txf, /**< Texel fetch with explicit LOD */ 12101e3bcbdf31f09666ba358f35ff9486faee3642caKenneth Graunke ir_txs /**< Texture size */ 121181377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick}; 121281377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 121381377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 121481377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick/** 121581377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * IR instruction to sample a texture 121681377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * 121781377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * The specific form of the IR instruction depends on the \c mode value 121881377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * selected from \c ir_texture_opcodes. In the printed IR, these will 121981377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * appear as: 122081377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * 1221233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * Texel offset (0 or an expression) 1222233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * | Projection divisor 1223233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * | | Shadow comparitor 1224233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * | | | 1225233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * v v v 1226233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * (tex <type> <sampler> <coordinate> 0 1 ( )) 1227233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * (txb <type> <sampler> <coordinate> 0 1 ( ) <bias>) 1228233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * (txl <type> <sampler> <coordinate> 0 1 ( ) <lod>) 1229233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * (txd <type> <sampler> <coordinate> 0 1 ( ) (dPdx dPdy)) 1230233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke * (txf <type> <sampler> <coordinate> 0 <lod>) 12311e3bcbdf31f09666ba358f35ff9486faee3642caKenneth Graunke * (txs <type> <sampler> <lod>) 123281377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick */ 123381377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanickclass ir_texture : public ir_rvalue { 123481377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanickpublic: 123581377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_texture(enum ir_texture_opcode op) 1236c5a27b5939427bdc95c926b450ed3de1ff4baafbKenneth Graunke : op(op), projector(NULL), shadow_comparitor(NULL), offset(NULL) 123781377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick { 1238d16044ad4d6176fec6164f96450a25f76b7677f1Eric Anholt this->ir_type = ir_type_texture; 123981377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick } 124081377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 12418273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_texture *clone(void *mem_ctx, struct hash_table *) const; 12424b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 1243fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke virtual ir_constant *constant_expression_value(); 1244fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 124526d74cd1d140786b8f4b1ccbaf500a16e68eec3cKenneth Graunke virtual void accept(ir_visitor *v) 124626d74cd1d140786b8f4b1ccbaf500a16e68eec3cKenneth Graunke { 124726d74cd1d140786b8f4b1ccbaf500a16e68eec3cKenneth Graunke v->visit(this); 124826d74cd1d140786b8f4b1ccbaf500a16e68eec3cKenneth Graunke } 124926d74cd1d140786b8f4b1ccbaf500a16e68eec3cKenneth Graunke 125026d74cd1d140786b8f4b1ccbaf500a16e68eec3cKenneth Graunke virtual ir_visitor_status accept(ir_hierarchical_visitor *); 125126d74cd1d140786b8f4b1ccbaf500a16e68eec3cKenneth Graunke 1252c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke /** 1253c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke * Return a string representing the ir_texture_opcode. 1254c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke */ 1255c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke const char *opcode_string(); 1256c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke 1257233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke /** Set the sampler and type. */ 1258233b88eab9d8095523ebae3c4be1dbf2e2bd856aKenneth Graunke void set_sampler(ir_dereference *sampler, const glsl_type *type); 125956d3f6ad782e9819b40544494826954d3fcf978bKenneth Graunke 1260c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke /** 1261c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke * Do a reverse-lookup to translate a string into an ir_texture_opcode. 1262c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke */ 1263c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke static ir_texture_opcode get_opcode(const char *); 1264c30f6e5dea7e75983784f3539304c8dd36356d1cKenneth Graunke 126581377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick enum ir_texture_opcode op; 126681377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 126781377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick /** Sampler to use for the texture access. */ 126881377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_dereference *sampler; 126981377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 127081377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick /** Texture coordinate to sample */ 127181377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_rvalue *coordinate; 127281377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 127381377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick /** 127481377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * Value used for projective divide. 127581377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * 127681377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * If there is no projective divide (the common case), this will be 127781377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * \c NULL. Optimization passes should check for this to point to a constant 127881377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * of 1.0 and replace that with \c NULL. 127981377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick */ 128081377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_rvalue *projector; 128181377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 128281377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick /** 128381377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * Coordinate used for comparison on shadow look-ups. 128481377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * 128581377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * If there is no shadow comparison, this will be \c NULL. For the 128681377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick * \c ir_txf opcode, this *must* be \c NULL. 128781377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick */ 128881377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_rvalue *shadow_comparitor; 128981377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 1290c5a27b5939427bdc95c926b450ed3de1ff4baafbKenneth Graunke /** Texel offset. */ 1291c5a27b5939427bdc95c926b450ed3de1ff4baafbKenneth Graunke ir_rvalue *offset; 129281377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 129381377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick union { 129481377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_rvalue *lod; /**< Floating point LOD */ 129581377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_rvalue *bias; /**< Floating point LOD bias */ 129681377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick struct { 129781377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_rvalue *dPdx; /**< Partial derivative of coordinate wrt X */ 129881377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick ir_rvalue *dPdy; /**< Partial derivative of coordinate wrt Y */ 129981377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick } grad; 130081377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick } lod_info; 130181377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick}; 130281377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 130381377c012cf5db3efe2e39885846c60b6e5c6eb8Ian Romanick 1304a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickstruct ir_swizzle_mask { 1305a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned x:2; 1306a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned y:2; 1307a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned z:2; 1308a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned w:2; 1309a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1310a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 1311a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Number of components in the swizzle. 1312a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 1313f25a5ad93961c335b56d4f0508cc5c00b77ee519Kenneth Graunke unsigned num_components:3; 1314a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1315a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 1316a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Does the swizzle contain duplicate components? 1317a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 1318a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * L-value swizzles cannot contain duplicate components. 1319a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 1320a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick unsigned has_duplicates:1; 1321a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 1322a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1323affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 1324affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunkeclass ir_swizzle : public ir_rvalue { 1325affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunkepublic: 1326affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke ir_swizzle(ir_rvalue *, unsigned x, unsigned y, unsigned z, unsigned w, 1327affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke unsigned count); 13286315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick 13296315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick ir_swizzle(ir_rvalue *val, const unsigned *components, unsigned count); 13306315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick 133105a4e59c2410292f595cfe0cc552a86ae69b20d2Eric Anholt ir_swizzle(ir_rvalue *val, ir_swizzle_mask mask); 1332cad9766118d269725ef33b4e9588d674d5225010Eric Anholt 13338273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_swizzle *clone(void *mem_ctx, struct hash_table *) const; 13344b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 1335fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke virtual ir_constant *constant_expression_value(); 1336fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 13377d21104a8b92c139051e9a224c5d863802a8ade6Eric Anholt virtual ir_swizzle *as_swizzle() 13387d21104a8b92c139051e9a224c5d863802a8ade6Eric Anholt { 13397d21104a8b92c139051e9a224c5d863802a8ade6Eric Anholt return this; 13407d21104a8b92c139051e9a224c5d863802a8ade6Eric Anholt } 13417d21104a8b92c139051e9a224c5d863802a8ade6Eric Anholt 1342affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke /** 1343affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke * Construct an ir_swizzle from the textual representation. Can fail. 1344affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke */ 1345affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke static ir_swizzle *create(ir_rvalue *, const char *, unsigned vector_length); 1346affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 1347affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke virtual void accept(ir_visitor *v) 1348affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke { 1349affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke v->visit(this); 1350affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke } 1351affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 13528895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 13538895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 1354a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry bool is_lvalue() const 1355affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke { 1356a9fafc6504ebccdc0fee3d2529c3fe6068cc86b8Eric Anholt return val->is_lvalue() && !mask.has_duplicates; 1357affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke } 1358affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 13592b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick /** 13602b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick * Get the variable that is ultimately referenced by an r-value 13612b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick */ 1362a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry virtual ir_variable *variable_referenced() const; 13632b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick 1364affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke ir_rvalue *val; 1365affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke ir_swizzle_mask mask; 13666315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick 13676315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanickprivate: 13686315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick /** 13696315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick * Initialize the mask component of a swizzle 13706315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick * 13716315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick * This is used by the \c ir_swizzle constructors. 13726315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick */ 13736315b68f5fbe529bce3497b67c42af1eaa62b8c1Ian Romanick void init_mask(const unsigned *components, unsigned count); 1374affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke}; 1375affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 1376affc1413ac9f1f077a4ba1a1b7135f73d7a71167Kenneth Graunke 1377fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_dereference : public ir_rvalue { 1378a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 13798273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_dereference *clone(void *mem_ctx, struct hash_table *) const = 0; 1380ca088cc277ce9f986693c857f3961dc0e1a4d91cIan Romanick 138144e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke virtual ir_dereference *as_dereference() 138244e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke { 138344e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke return this; 138444e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke } 138544e1dfa2df4de3e2de963f0505cdadade6fe8180Kenneth Graunke 1386a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry bool is_lvalue() const; 1387fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunke 13882b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick /** 13892b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick * Get the variable that is ultimately referenced by an r-value 13902b3c476fa08e33a0ee1633b173a7df31ecaca582Ian Romanick */ 1391a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry virtual ir_variable *variable_referenced() const = 0; 139270fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick}; 139370fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 139470fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 139570fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanickclass ir_dereference_variable : public ir_dereference { 139670fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanickpublic: 139770fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick ir_dereference_variable(ir_variable *var); 139870fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 13998273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_dereference_variable *clone(void *mem_ctx, 14008273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt struct hash_table *) const; 14014b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 1402fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke virtual ir_constant *constant_expression_value(); 1403fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 1404d4f7e660dd81e05b0829c1b70663b3959fd78f47Eric Anholt virtual ir_dereference_variable *as_dereference_variable() 1405d4f7e660dd81e05b0829c1b70663b3959fd78f47Eric Anholt { 1406d4f7e660dd81e05b0829c1b70663b3959fd78f47Eric Anholt return this; 1407d4f7e660dd81e05b0829c1b70663b3959fd78f47Eric Anholt } 1408d4f7e660dd81e05b0829c1b70663b3959fd78f47Eric Anholt 140970fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick /** 141070fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick * Get the variable that is ultimately referenced by an r-value 141170fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick */ 1412a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry virtual ir_variable *variable_referenced() const 141370fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick { 141436ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick return this->var; 141570fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick } 1416f3a002b503542fe2544025c6a42d552fdc4907c2Ian Romanick 1417b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick virtual ir_variable *whole_variable_referenced() 1418b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick { 1419b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick /* ir_dereference_variable objects always dereference the entire 1420b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * variable. However, if this dereference is dereferenced by anything 1421b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * else, the complete deferefernce chain is not a whole-variable 1422b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * dereference. This method should only be called on the top most 1423b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick * ir_rvalue in a dereference chain. 1424b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick */ 1425b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick return this->var; 1426b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick } 1427b067db2e253059e83249b1e4d5f3c626b0e33807Ian Romanick 1428c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick virtual void accept(ir_visitor *v) 1429c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick { 1430c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick v->visit(this); 1431c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick } 1432c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick 1433f3a002b503542fe2544025c6a42d552fdc4907c2Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 143436ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick 143536ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick /** 143636ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick * Object being dereferenced. 143736ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick */ 143836ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick ir_variable *var; 143970fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick}; 144070fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 144170fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 144270fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanickclass ir_dereference_array : public ir_dereference { 144370fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanickpublic: 144470fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick ir_dereference_array(ir_rvalue *value, ir_rvalue *array_index); 144570fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 144670fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick ir_dereference_array(ir_variable *var, ir_rvalue *array_index); 144770fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 14488273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_dereference_array *clone(void *mem_ctx, 14498273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt struct hash_table *) const; 14504b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 1451fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke virtual ir_constant *constant_expression_value(); 1452fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 1453b145e903694fa932ab1e0d955e889555193ab604Eric Anholt virtual ir_dereference_array *as_dereference_array() 1454b145e903694fa932ab1e0d955e889555193ab604Eric Anholt { 1455b145e903694fa932ab1e0d955e889555193ab604Eric Anholt return this; 1456b145e903694fa932ab1e0d955e889555193ab604Eric Anholt } 1457b145e903694fa932ab1e0d955e889555193ab604Eric Anholt 145870fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick /** 145970fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick * Get the variable that is ultimately referenced by an r-value 146070fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick */ 1461a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry virtual ir_variable *variable_referenced() const 146270fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick { 146336ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick return this->array->variable_referenced(); 146470fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick } 146570fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 1466c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick virtual void accept(ir_visitor *v) 1467c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick { 1468c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick v->visit(this); 1469c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick } 1470c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick 1471f3a002b503542fe2544025c6a42d552fdc4907c2Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 147270fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 147336ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick ir_rvalue *array; 147436ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick ir_rvalue *array_index; 147536ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick 147670fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanickprivate: 147770fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick void set_array(ir_rvalue *value); 147870fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick}; 147970fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 148070fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 148170fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanickclass ir_dereference_record : public ir_dereference { 148270fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanickpublic: 148370fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick ir_dereference_record(ir_rvalue *value, const char *field); 148470fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 148570fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick ir_dereference_record(ir_variable *var, const char *field); 148670fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick 14878273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_dereference_record *clone(void *mem_ctx, 14888273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt struct hash_table *) const; 14894b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 1490fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke virtual ir_constant *constant_expression_value(); 1491fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 149270fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick /** 149370fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick * Get the variable that is ultimately referenced by an r-value 149470fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick */ 1495a52b53b56e2b5d5853345d8bcd2a4ff50e495c20Paul Berry virtual ir_variable *variable_referenced() const 149670fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick { 149736ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick return this->record->variable_referenced(); 149870fe8b66632f4afd87ebb12a450b1e639428e88fIan Romanick } 1499f3a002b503542fe2544025c6a42d552fdc4907c2Ian Romanick 1500c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick virtual void accept(ir_visitor *v) 1501c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick { 1502c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick v->visit(this); 1503c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick } 1504c7b1046a9fa6da916f11fb9e43d61fd772470183Ian Romanick 1505f3a002b503542fe2544025c6a42d552fdc4907c2Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 150636ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick 150736ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick ir_rvalue *record; 150836ea28646c666ac2af9b43c47e65f9f53ffcc390Ian Romanick const char *field; 1509a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 1510a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1511a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1512be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick/** 1513be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * Data stored in an ir_constant 1514be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick */ 1515be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanickunion ir_constant_data { 1516be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick unsigned u[16]; 1517be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick int i[16]; 1518be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick float f[16]; 1519be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick bool b[16]; 1520be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick}; 1521be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 1522be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 1523fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeclass ir_constant : public ir_rvalue { 1524a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanickpublic: 1525824b659d917a5f14a1f66b891d25036ef9f9adc6Ian Romanick ir_constant(const struct glsl_type *type, const ir_constant_data *data); 15263c36b2df7c854d23b2be9580e416fb04079a1befEric Anholt ir_constant(bool b); 15273c36b2df7c854d23b2be9580e416fb04079a1befEric Anholt ir_constant(unsigned int u); 15283c36b2df7c854d23b2be9580e416fb04079a1befEric Anholt ir_constant(int i); 15293c36b2df7c854d23b2be9580e416fb04079a1befEric Anholt ir_constant(float f); 1530a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1531989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick /** 1532756a3fac4fbbc6b3785715db745f8d58a14baeb9Ian Romanick * Construct an ir_constant from a list of ir_constant values 1533756a3fac4fbbc6b3785715db745f8d58a14baeb9Ian Romanick */ 1534756a3fac4fbbc6b3785715db745f8d58a14baeb9Ian Romanick ir_constant(const struct glsl_type *type, exec_list *values); 1535756a3fac4fbbc6b3785715db745f8d58a14baeb9Ian Romanick 1536756a3fac4fbbc6b3785715db745f8d58a14baeb9Ian Romanick /** 1537989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * Construct an ir_constant from a scalar component of another ir_constant 1538989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * 1539989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * The new \c ir_constant inherits the type of the component from the 1540989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * source constant. 1541989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * 1542989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * \note 1543989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * In the case of a matrix constant, the new constant is a scalar, \b not 1544989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick * a vector. 1545989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick */ 1546989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick ir_constant(const ir_constant *c, unsigned i); 1547989cfc432ee7adef701a87783e0c6b064c1cfaeeIan Romanick 1548ee9a3a51b61f0afe75b4b8b0c3025310140437ecKenneth Graunke /** 1549ee9a3a51b61f0afe75b4b8b0c3025310140437ecKenneth Graunke * Return a new ir_constant of the specified type containing all zeros. 1550ee9a3a51b61f0afe75b4b8b0c3025310140437ecKenneth Graunke */ 1551ee9a3a51b61f0afe75b4b8b0c3025310140437ecKenneth Graunke static ir_constant *zero(void *mem_ctx, const glsl_type *type); 1552ee9a3a51b61f0afe75b4b8b0c3025310140437ecKenneth Graunke 15538273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholt virtual ir_constant *clone(void *mem_ctx, struct hash_table *) const; 15544b6fd39c89f308a379882426c1ed3616d60c4628Eric Anholt 1555fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke virtual ir_constant *constant_expression_value(); 1556fb2ffd2846b48cb50128fb74df56f2ee63179832Kenneth Graunke 15575c89f0ecb9581cbe83442ab3f41f2f3701fffab0Eric Anholt virtual ir_constant *as_constant() 15585c89f0ecb9581cbe83442ab3f41f2f3701fffab0Eric Anholt { 15595c89f0ecb9581cbe83442ab3f41f2f3701fffab0Eric Anholt return this; 15605c89f0ecb9581cbe83442ab3f41f2f3701fffab0Eric Anholt } 15615c89f0ecb9581cbe83442ab3f41f2f3701fffab0Eric Anholt 156278b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick virtual void accept(ir_visitor *v) 156378b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick { 156478b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick v->visit(this); 156578b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick } 156678b51b0fdd61b58940f9043ef9046217552f2c70Ian Romanick 15678895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick virtual ir_visitor_status accept(ir_hierarchical_visitor *); 15688895bae55ba8d9f62dd59cbd924ac37c8a7dcdb1Ian Romanick 1569a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick /** 157031881908ebc11d84c2ff1821410c91340686aa17Ian Romanick * Get a particular component of a constant as a specific type 157131881908ebc11d84c2ff1821410c91340686aa17Ian Romanick * 157231881908ebc11d84c2ff1821410c91340686aa17Ian Romanick * This is useful, for example, to get a value from an integer constant 157331881908ebc11d84c2ff1821410c91340686aa17Ian Romanick * as a float or bool. This appears frequently when constructors are 157431881908ebc11d84c2ff1821410c91340686aa17Ian Romanick * called with all constant parameters. 157531881908ebc11d84c2ff1821410c91340686aa17Ian Romanick */ 157631881908ebc11d84c2ff1821410c91340686aa17Ian Romanick /*@{*/ 157731881908ebc11d84c2ff1821410c91340686aa17Ian Romanick bool get_bool_component(unsigned i) const; 157831881908ebc11d84c2ff1821410c91340686aa17Ian Romanick float get_float_component(unsigned i) const; 157931881908ebc11d84c2ff1821410c91340686aa17Ian Romanick int get_int_component(unsigned i) const; 158031881908ebc11d84c2ff1821410c91340686aa17Ian Romanick unsigned get_uint_component(unsigned i) const; 158131881908ebc11d84c2ff1821410c91340686aa17Ian Romanick /*@}*/ 158231881908ebc11d84c2ff1821410c91340686aa17Ian Romanick 158374e1802f5dd8921750851abc6128e4073602d405Kenneth Graunke ir_constant *get_array_element(unsigned i) const; 158474e1802f5dd8921750851abc6128e4073602d405Kenneth Graunke 1585b94c29a47b5020e4d052679fc5d22c19533fd73bIan Romanick ir_constant *get_record_field(const char *name); 1586b94c29a47b5020e4d052679fc5d22c19533fd73bIan Romanick 158731881908ebc11d84c2ff1821410c91340686aa17Ian Romanick /** 15881e8b7a714e8acbb5028a250048452f2efc29d02eIan Romanick * Determine whether a constant has the same value as another constant 158938e55153af031e48125b1cd0a5d939bb92379ddcIan Romanick * 15908e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * \sa ir_constant::is_zero, ir_constant::is_one, 15918e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick * ir_constant::is_negative_one 15921e8b7a714e8acbb5028a250048452f2efc29d02eIan Romanick */ 15931e8b7a714e8acbb5028a250048452f2efc29d02eIan Romanick bool has_value(const ir_constant *) const; 15941e8b7a714e8acbb5028a250048452f2efc29d02eIan Romanick 1595ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick virtual bool is_zero() const; 1596ad87f2ddc7e6b95e3dd5bbe4d2b19703d305c74eIan Romanick virtual bool is_one() const; 15978e498050dc1a1285c2218fdf4ea506c1cdcd9dd8Ian Romanick virtual bool is_negative_one() const; 159838e55153af031e48125b1cd0a5d939bb92379ddcIan Romanick 159938e55153af031e48125b1cd0a5d939bb92379ddcIan Romanick /** 1600a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * Value of the constant. 1601a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * 1602a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * The field used to back the values supplied by the constant is determined 1603a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * by the type associated with the \c ir_instruction. Constants may be 1604a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick * scalars, vectors, or matrices. 1605a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick */ 1606be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick union ir_constant_data value; 16077f1ab834d7aa901ce0e12f40db23d7d9891eae59Ian Romanick 160874e1802f5dd8921750851abc6128e4073602d405Kenneth Graunke /* Array elements */ 160974e1802f5dd8921750851abc6128e4073602d405Kenneth Graunke ir_constant **array_elements; 161074e1802f5dd8921750851abc6128e4073602d405Kenneth Graunke 161174e1802f5dd8921750851abc6128e4073602d405Kenneth Graunke /* Structure fields */ 16127f1ab834d7aa901ce0e12f40db23d7d9891eae59Ian Romanick exec_list components; 1613710919fd7cb7ac6cb640afa362f5c409e5a5ec91Ian Romanick 1614710919fd7cb7ac6cb640afa362f5c409e5a5ec91Ian Romanickprivate: 1615710919fd7cb7ac6cb640afa362f5c409e5a5ec91Ian Romanick /** 1616710919fd7cb7ac6cb640afa362f5c409e5a5ec91Ian Romanick * Parameterless constructor only used by the clone method 1617710919fd7cb7ac6cb640afa362f5c409e5a5ec91Ian Romanick */ 1618710919fd7cb7ac6cb640afa362f5c409e5a5ec91Ian Romanick ir_constant(void); 1619a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick}; 1620a87ac255cf7ef0672b4de865d82e6a40c93b57dIan Romanick 1621e053d62aa573651abdd78666d299272c8219a3aaIan Romanick/*@}*/ 1622e053d62aa573651abdd78666d299272c8219a3aaIan Romanick 1623e053d62aa573651abdd78666d299272c8219a3aaIan Romanick/** 1624e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Apply a visitor to each IR node in a list 1625e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 162670b74928a220aff024664714877defb0caedf33fEric Anholtvoid 162770b74928a220aff024664714877defb0caedf33fEric Anholtvisit_exec_list(exec_list *list, ir_visitor *visitor); 1628adfb0cd7401251bef0c854ac945fce78f0ed11dbIan Romanick 1629e053d62aa573651abdd78666d299272c8219a3aaIan Romanick/** 1630e053d62aa573651abdd78666d299272c8219a3aaIan Romanick * Validate invariants on each IR node in a list 1631e053d62aa573651abdd78666d299272c8219a3aaIan Romanick */ 163253cdb7e51d85d4b4a35fba3ec200b27991b8488bEric Anholtvoid validate_ir_tree(exec_list *instructions); 163353cdb7e51d85d4b4a35fba3ec200b27991b8488bEric Anholt 163402c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanickstruct _mesa_glsl_parse_state; 163502c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanickstruct gl_shader_program; 163602c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick 163702c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick/** 163802c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * Detect whether an unlinked shader contains static recursion 163902c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * 164002c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * If the list of instructions is determined to contain static recursion, 164102c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * \c _mesa_glsl_error will be called to emit error messages for each function 164202c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * that is in the recursion cycle. 164302c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick */ 164402c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanickvoid 164502c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanickdetect_recursion_unlinked(struct _mesa_glsl_parse_state *state, 164602c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick exec_list *instructions); 164702c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick 164802c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick/** 164902c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * Detect whether a linked shader contains static recursion 165002c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * 165102c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * If the list of instructions is determined to contain static recursion, 165202c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * \c link_error_printf will be called to emit error messages for each function 165302c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * that is in the recursion cycle. In addition, 165402c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick * \c gl_shader_program::LinkStatus will be set to false. 165502c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick */ 165602c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanickvoid 165702c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanickdetect_recursion_linked(struct gl_shader_program *prog, 165802c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick exec_list *instructions); 165902c5ae1b3fef75d5c0a715313a69e6b95ebd5b95Ian Romanick 1660f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanick/** 1661f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanick * Make a clone of each IR instruction in a list 1662f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanick * 1663f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanick * \param in List of IR instructions that are to be cloned 1664f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanick * \param out List to hold the cloned instructions 1665f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanick */ 1666f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanickvoid 16678273bd46877e2ea2b8a02b87a11c68102d07e1f2Eric Anholtclone_ir_list(void *mem_ctx, exec_list *out, const exec_list *in); 1668f3235eb37f264244f4ea432700be7dd6b2930d6cIan Romanick 1669adfb0cd7401251bef0c854ac945fce78f0ed11dbIan Romanickextern void 1670adfb0cd7401251bef0c854ac945fce78f0ed11dbIan Romanick_mesa_glsl_initialize_variables(exec_list *instructions, 1671adfb0cd7401251bef0c854ac945fce78f0ed11dbIan Romanick struct _mesa_glsl_parse_state *state); 1672e309a6051d1a04ee581f0a47c6c585918fba1096Ian Romanick 1673c22c40015db32b68b33c4944b9d94bf499135ec5Eric Anholtextern void 167481168351a7f493fcde55e621af046c9301aa93e9Kenneth Graunke_mesa_glsl_initialize_functions(_mesa_glsl_parse_state *state); 1675c22c40015db32b68b33c4944b9d94bf499135ec5Eric Anholt 167660e2d06d1ccc66ad00cd7ab81c418853f21be291Ian Romanickextern void 1677d5be2acae379783c4aa31243e0a88a9e67e6ca7eIan Romanick_mesa_glsl_release_functions(void); 1678d5be2acae379783c4aa31243e0a88a9e67e6ca7eIan Romanick 1679d5be2acae379783c4aa31243e0a88a9e67e6ca7eIan Romanickextern void 168060e2d06d1ccc66ad00cd7ab81c418853f21be291Ian Romanickreparent_ir(exec_list *list, void *mem_ctx); 168160e2d06d1ccc66ad00cd7ab81c418853f21be291Ian Romanick 16821cbcf6693aa490c4dcb56712bfb9998deb270f08José Fonsecastruct glsl_symbol_table; 16834ccd3c548b9b9a2fee79342445f68d73525bfcdbIan Romanick 16844ccd3c548b9b9a2fee79342445f68d73525bfcdbIan Romanickextern void 16854ccd3c548b9b9a2fee79342445f68d73525bfcdbIan Romanickimport_prototypes(const exec_list *source, exec_list *dest, 16861cbcf6693aa490c4dcb56712bfb9998deb270f08José Fonseca struct glsl_symbol_table *symbols, void *mem_ctx); 16874ccd3c548b9b9a2fee79342445f68d73525bfcdbIan Romanick 16889f82806c7b5109553cf806a5652e6b6198665094Eric Anholtextern bool 16899f82806c7b5109553cf806a5652e6b6198665094Eric Anholtir_has_call(ir_instruction *ir); 16909f82806c7b5109553cf806a5652e6b6198665094Eric Anholt 1691925b49ff310bf0b307add7c34627cddf87e6a554Eric Anholtextern void 1692cf45949d6a896651a5f3864d3b195e26d59eee74Paul Berrydo_set_program_inouts(exec_list *instructions, struct gl_program *prog, 1693cf45949d6a896651a5f3864d3b195e26d59eee74Paul Berry bool is_fragment_shader); 1694925b49ff310bf0b307add7c34627cddf87e6a554Eric Anholt 16951ad3ba4ad954b86751bd5b6ad0a431920bff9958Ian Romanickextern char * 16961ad3ba4ad954b86751bd5b6ad0a431920bff9958Ian Romanickprototype_string(const glsl_type *return_type, const char *name, 16971ad3ba4ad954b86751bd5b6ad0a431920bff9958Ian Romanick exec_list *parameters); 16981ad3ba4ad954b86751bd5b6ad0a431920bff9958Ian Romanick 1699e309a6051d1a04ee581f0a47c6c585918fba1096Ian Romanick#endif /* IR_H */ 1700