1//
2// Copyright (c) 2016 The ANGLE Project Authors. All rights reserved.
3// Use of this source code is governed by a BSD-style license that can be
4// found in the LICENSE file.
5//
6// This mutating tree traversal works around a bug in the HLSL compiler optimizer with "pow" that
7// manifests under the following conditions:
8//
9// - If pow() has a literal exponent value
10// - ... and this value is integer or within 10e-6 of an integer
11// - ... and it is in {-4, -3, -2, 2, 3, 4, 5, 6, 7, 8}
12//
13// The workaround is to replace the pow with a series of multiplies.
14// See http://anglebug.com/851
15
16#ifndef COMPILER_TRANSLATOR_TREEOPS_EXPANDINTEGERPOWEXPRESSIONS_H_
17#define COMPILER_TRANSLATOR_TREEOPS_EXPANDINTEGERPOWEXPRESSIONS_H_
18
19namespace sh
20{
21
22class TIntermNode;
23class TSymbolTable;
24
25void ExpandIntegerPowExpressions(TIntermNode *root, TSymbolTable *symbolTable);
26
27} // namespace sh
28
29#endif // COMPILER_TRANSLATOR_TREEOPS_EXPANDINTEGERPOWEXPRESSIONS_H_
30