1/*******************************************************************************
2* Copyright 2022 Intel Corporation
3*
4* Licensed under the Apache License, Version 2.0 (the "License");
5* you may not use this file except in compliance with the License.
6* You may obtain a copy of the License at
7*
8* http://www.apache.org/licenses/LICENSE-2.0
9*
10* Unless required by applicable law or agreed to in writing, software
11* distributed under the License is distributed on an "AS IS" BASIS,
12* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13* See the License for the specific language governing permissions and
14* limitations under the License.
15*******************************************************************************/
16
17#ifndef GPU_JIT_PASS_UNROLL_HPP
18#define GPU_JIT_PASS_UNROLL_HPP
19
20#include "gpu/jit/ir/ir.hpp"
21
22namespace dnnl {
23namespace impl {
24namespace gpu {
25namespace jit {
26
27// Eliminates let statements from the outer loops to be able to unroll loop
28// nest for SLM buffering or prefetch injection. Example:
29// Before:
30// for (int i = 0; i < I; i++) {
31// int tmp = TMP;
32// for (int j = 0; j < J; j++) {
33// ...
34// }
35// }
36// After:
37// for (int i = 0; i < I; i++) {
38// for (int j = 0; j < J; j++) {
39// int tmp = TMP;
40// ...
41// }
42// }
43stmt_t update_loops_for_unrolling(const stmt_t &s, ir_context_t &ir_ctx);
44
45// Unrolls loops according to their unroll attribute.
46// Before:
47// for (int i = 0; i < 2; i++) [unroll: 2] {
48// body(i);
49// }
50// After:
51// body(0);
52// body(1);
53stmt_t unroll_loops(const stmt_t &s, ir_context_t &ir_ctx);
54
55} // namespace jit
56} // namespace gpu
57} // namespace impl
58} // namespace dnnl
59
60#endif
61