1f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* 2f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Copyright © 2010 Intel Corporation 3f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 4f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Permission is hereby granted, free of charge, to any person obtaining a 5f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * copy of this software and associated documentation files (the "Software"), 6f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * to deal in the Software without restriction, including without limitation 7f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * and/or sell copies of the Software, and to permit persons to whom the 9f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Software is furnished to do so, subject to the following conditions: 10f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 11f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * The above copyright notice and this permission notice (including the next 12f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * paragraph) shall be included in all copies or substantial portions of the 13f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Software. 14f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 15f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * DEALINGS IN THE SOFTWARE. 22f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 23f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 24f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 25f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * \file lower_vector.cpp 26f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * IR lowering pass to remove some types of ir_quadop_vector 27f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 28f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * \author Ian Romanick <ian.d.romanick@intel.com> 29f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 30f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 31f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "ir.h" 32f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "ir_rvalue_visitor.h" 33f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 34f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgclass lower_vector_visitor : public ir_rvalue_visitor { 35f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgpublic: 36f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org lower_vector_visitor() : progress(false) 37f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 38f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* empty */ 39f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 40f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 41f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org void handle_rvalue(ir_rvalue **rvalue); 42f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 43f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /** 44f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Should SWZ-like expressions be lowered? 45f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 46f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org bool dont_lower_swz; 47f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 48f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org bool progress; 49f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 50f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 51f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 52f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Determine if an IR expression tree looks like an extended swizzle 53f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 54f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Extended swizzles consist of access of a single vector source (with possible 55f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * per component negation) and the constants -1, 0, or 1. 56f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 57f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgbool 58f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgis_extended_swizzle(ir_expression *ir) 59f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 60f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Track any variables that are accessed by this expression. 61f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 62f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ir_variable *var = NULL; 63f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 64f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(ir->operation == ir_quadop_vector); 65f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 66f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (unsigned i = 0; i < ir->type->vector_elements; i++) { 67f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ir_rvalue *op = ir->operands[i]; 68f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 69f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org while (op != NULL) { 70f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org switch (op->ir_type) { 71f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case ir_type_constant: { 72f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const ir_constant *const c = op->as_constant(); 73f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 74f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!c->is_one() && !c->is_zero() && !c->is_negative_one()) 75f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return false; 76f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 77f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org op = NULL; 78f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 79f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 80f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 81f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case ir_type_dereference_variable: { 82f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ir_dereference_variable *const d = (ir_dereference_variable *) op; 83f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 84f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if ((var != NULL) && (var != d->var)) 85f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return false; 86f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 87f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org var = d->var; 88f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org op = NULL; 89f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 90f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 91f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 92f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case ir_type_expression: { 93f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ir_expression *const ex = (ir_expression *) op; 94f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 95f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (ex->operation != ir_unop_neg) 96f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return false; 97f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 98f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org op = ex->operands[0]; 99f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 100f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 101f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 102f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case ir_type_swizzle: 103f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org op = ((ir_swizzle *) op)->val; 104f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 105f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 106f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org default: 107f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return false; 108f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 109f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 110f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 111f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 112f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return true; 113f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 114f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 115f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid 116f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orglower_vector_visitor::handle_rvalue(ir_rvalue **rvalue) 117f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 118f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!*rvalue) 119f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return; 120f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 121f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ir_expression *expr = (*rvalue)->as_expression(); 122f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if ((expr == NULL) || (expr->operation != ir_quadop_vector)) 123f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return; 124f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 125f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (this->dont_lower_swz && is_extended_swizzle(expr)) 126f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return; 127f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 128f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* FINISHME: Is this the right thing to use for the ralloc context? 129f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 130f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org void *const mem_ctx = expr; 131f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 132f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(expr->type->vector_elements == expr->get_num_operands()); 133f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 134f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Generate a temporary with the same type as the ir_quadop_operation. 135f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 136f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ir_variable *const temp = 137f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org new(mem_ctx) ir_variable(expr->type, "vecop_tmp", ir_var_temporary); 138f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 139f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org this->base_ir->insert_before(temp); 140f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 141f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Counter of the number of components collected so far. 142f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 143f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned assigned; 144f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 145f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Write-mask in the destination that receives counted by 'assigned'. 146f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 147f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned write_mask; 148f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 149f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 150f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Generate upto four assignments to that variable. Try to group component 151f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * assignments together: 152f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 153f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * - All constant components can be assigned at once. 154f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * - All assigments of components from a single variable with the same 155f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * unary operator can be assigned at once. 156f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 157f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ir_constant_data d = { { 0 } }; 158f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 159f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assigned = 0; 160f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org write_mask = 0; 161f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (unsigned i = 0; i < expr->type->vector_elements; i++) { 162f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const ir_constant *const c = expr->operands[i]->as_constant(); 163f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 164f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (c == NULL) 165f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org continue; 166f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 167f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org switch (expr->type->base_type) { 168f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case GLSL_TYPE_UINT: d.u[assigned] = c->value.u[0]; break; 169f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case GLSL_TYPE_INT: d.i[assigned] = c->value.i[0]; break; 170f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case GLSL_TYPE_FLOAT: d.f[assigned] = c->value.f[0]; break; 171f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case GLSL_TYPE_BOOL: d.b[assigned] = c->value.b[0]; break; 172f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org default: assert(!"Should not get here."); break; 173f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 174f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 175f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org write_mask |= (1U << i); 176f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assigned++; 177f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 178f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 179f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert((write_mask == 0) == (assigned == 0)); 180f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 181f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* If there were constant values, generate an assignment. 182f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 183f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (assigned > 0) { 184f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ir_constant *const c = 185f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org new(mem_ctx) ir_constant(glsl_type::get_instance(expr->type->base_type, 186f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assigned, 1), 187f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org &d); 188f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ir_dereference *const lhs = new(mem_ctx) ir_dereference_variable(temp); 189f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ir_assignment *const assign = 190f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org new(mem_ctx) ir_assignment(lhs, c, NULL, write_mask); 191f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 192f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org this->base_ir->insert_before(assign); 193f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 194f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 195f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* FINISHME: This should try to coalesce assignments. 196f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 197f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (unsigned i = 0; i < expr->type->vector_elements; i++) { 198f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (expr->operands[i]->ir_type == ir_type_constant) 199f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org continue; 200f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 201f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ir_dereference *const lhs = new(mem_ctx) ir_dereference_variable(temp); 202f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ir_assignment *const assign = 203f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org new(mem_ctx) ir_assignment(lhs, expr->operands[i], NULL, (1U << i)); 204f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 205f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org this->base_ir->insert_before(assign); 206f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assigned++; 207f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 208f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 209f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(assigned == expr->type->vector_elements); 210f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 211f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org *rvalue = new(mem_ctx) ir_dereference_variable(temp); 212f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org this->progress = true; 213f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 214f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 215f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgbool 216f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orglower_quadop_vector(exec_list *instructions, bool dont_lower_swz) 217f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 218f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org lower_vector_visitor v; 219f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 220f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org v.dont_lower_swz = dont_lower_swz; 221f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org visit_list_elements(&v, instructions); 222f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 223f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return v.progress; 224f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 225