1/*
2 * Copyright © 2019 Google, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24/**
25 * \file lower_builtins.cpp
26 *
27 * Inline calls to builtin functions.
28 */
29
30#include "ir.h"
31#include "ir_optimization.h"
32
33namespace {
34
35class lower_builtins_visitor : public ir_hierarchical_visitor {
36public:
37   lower_builtins_visitor() : progress(false) { }
38   ir_visitor_status visit_leave(ir_call *);
39   bool progress;
40};
41
42}
43
44bool
45lower_builtins(exec_list *instructions)
46{
47   lower_builtins_visitor v;
48   visit_list_elements(&v, instructions);
49   return v.progress;
50}
51
52ir_visitor_status
53lower_builtins_visitor::visit_leave(ir_call *ir)
54{
55   /* lower_precision() also inlines some intrinsics, which can't be inlined
56    * further.
57    */
58   if (!ir->callee->is_builtin() || ir->callee->is_intrinsic())
59      return visit_continue;
60
61   ir->generate_inline(ir);
62   ir->remove();
63
64   this->progress = true;
65
66   return visit_continue;
67}
68