1//
2// Copyright (c) 2002-2015 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// During parsing, all constant expressions are folded to constant union nodes. The expressions that
7// have been folded may have had precision qualifiers, which should affect the precision of the
8// consuming operation. If the folded constant union nodes are written to output as such they won't
9// have any precision qualifiers, and their effect on the precision of the consuming operation is
10// lost.
11//
12// RecordConstantPrecision is an AST traverser that inspects the precision qualifiers of constants
13// and hoists the constants outside the containing expression as precision qualified named variables
14// in case that is required for correct precision propagation.
15//
16
17#ifndef COMPILER_TRANSLATOR_TREEOPS_RECORDCONSTANTPRECISION_H_
18#define COMPILER_TRANSLATOR_TREEOPS_RECORDCONSTANTPRECISION_H_
19
20namespace sh
21{
22class TIntermNode;
23class TSymbolTable;
24
25void RecordConstantPrecision(TIntermNode *root, TSymbolTable *symbolTable);
26} // namespace sh
27
28#endif // COMPILER_TRANSLATOR_TREEOPS_RECORDCONSTANTPRECISION_H_
29