LCOV - code coverage report
Current view: directory - gfx/angle/src/compiler - ForLoopUnroll.h (source / functions) Found Hit Coverage
Test: app.info Lines: 3 0 0.0 %
Date: 2012-06-02 Functions: 3 0 0.0 %

       1                 : //
       2                 : // Copyright (c) 2011 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                 : 
       7                 : #include "compiler/intermediate.h"
       8                 : 
       9               0 : struct TLoopIndexInfo {
      10                 :     int id;
      11                 :     int initValue;
      12                 :     int stopValue;
      13                 :     int incrementValue;
      14                 :     TOperator op;
      15                 :     int currentValue;
      16                 : };
      17                 : 
      18               0 : class ForLoopUnroll {
      19                 : public:
      20               0 :     ForLoopUnroll() { }
      21                 : 
      22                 :     void FillLoopIndexInfo(TIntermLoop* node, TLoopIndexInfo& info);
      23                 : 
      24                 :     // Update the info.currentValue for the next loop iteration.
      25                 :     void Step();
      26                 : 
      27                 :     // Return false if loop condition is no longer satisfied.
      28                 :     bool SatisfiesLoopCondition();
      29                 : 
      30                 :     // Check if the symbol is the index of a loop that's unrolled.
      31                 :     bool NeedsToReplaceSymbolWithValue(TIntermSymbol* symbol);
      32                 : 
      33                 :     // Return the current value of a given loop index symbol.
      34                 :     int GetLoopIndexValue(TIntermSymbol* symbol);
      35                 : 
      36                 :     void Push(TLoopIndexInfo& info);
      37                 :     void Pop();
      38                 : 
      39                 :     static void MarkForLoopsWithIntegerIndicesForUnrolling(TIntermNode* root);
      40                 : 
      41                 : private:
      42                 :     int getLoopIncrement(TIntermLoop* node);
      43                 : 
      44                 :     int evaluateIntConstant(TIntermConstantUnion* node);
      45                 : 
      46                 :     TVector<TLoopIndexInfo> mLoopIndexStack;
      47                 : };
      48                 : 

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