diff options
author | Simon Hausmann <simon.hausmann@digia.com> | 2014-02-28 13:13:16 +0100 |
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committer | Simon Hausmann <simon.hausmann@digia.com> | 2014-02-28 13:14:15 +0100 |
commit | 846cc4c75cc06def67e831c8cb3c9edaef24f8f0 (patch) | |
tree | cf8cd76a5a610a6264583148b2c0549f7514dde3 /src/3rdparty/angle/src/compiler/translator/ForLoopUnroll.h | |
parent | 9e4a215a2569a04010292c8718d0f0569bc06c12 (diff) | |
parent | 0d0fb04d505d105fb4b2fc71d68f729ce670b12e (diff) |
Merge remote-tracking branch 'origin/stable' into dev
Conflicts:
src/network/access/qhttpthreaddelegate.cpp
Change-Id: Ia15372687c93cd585967b006c0baaac3a5f29e91
Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/ForLoopUnroll.h')
-rw-r--r-- | src/3rdparty/angle/src/compiler/translator/ForLoopUnroll.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/ForLoopUnroll.h b/src/3rdparty/angle/src/compiler/translator/ForLoopUnroll.h new file mode 100644 index 0000000000..afd70d1fd2 --- /dev/null +++ b/src/3rdparty/angle/src/compiler/translator/ForLoopUnroll.h @@ -0,0 +1,52 @@ +// +// Copyright (c) 2011 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// + +#ifndef COMPILER_FORLOOPUNROLL_H_ +#define COMPILER_FORLOOPUNROLL_H_ + +#include "compiler/translator/intermediate.h" + +struct TLoopIndexInfo { + int id; + int initValue; + int stopValue; + int incrementValue; + TOperator op; + int currentValue; +}; + +class ForLoopUnroll { +public: + ForLoopUnroll() { } + + void FillLoopIndexInfo(TIntermLoop* node, TLoopIndexInfo& info); + + // Update the info.currentValue for the next loop iteration. + void Step(); + + // Return false if loop condition is no longer satisfied. + bool SatisfiesLoopCondition(); + + // Check if the symbol is the index of a loop that's unrolled. + bool NeedsToReplaceSymbolWithValue(TIntermSymbol* symbol); + + // Return the current value of a given loop index symbol. + int GetLoopIndexValue(TIntermSymbol* symbol); + + void Push(TLoopIndexInfo& info); + void Pop(); + + static void MarkForLoopsWithIntegerIndicesForUnrolling(TIntermNode* root); + +private: + int getLoopIncrement(TIntermLoop* node); + + int evaluateIntConstant(TIntermConstantUnion* node); + + TVector<TLoopIndexInfo> mLoopIndexStack; +}; + +#endif |