Add m-esr52 at 52.6.0

1 files changed, 58 insertions, 0 deletions

diff --git a/gfx/angle/src/compiler/translator/ForLoopUnroll.h b/gfx/angle/src/compiler/translator/ForLoopUnroll.h
new file mode 100755
index 000000000..cda89b29f
--- /dev/null
+++ b/gfx/angle/src/compiler/translator/ForLoopUnroll.h
@@ -0,0 +1,58 @@
+//
+// 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_TRANSLATOR_FORLOOPUNROLL_H_
+#define COMPILER_TRANSLATOR_FORLOOPUNROLL_H_
+
+#include "compiler/translator/LoopInfo.h"
+
+namespace sh
+{
+
+// This class detects for-loops that needs to be unrolled.
+// Currently we support two unroll conditions:
+//   1) kForLoopWithIntegerIndex: unroll if the index type is integer.
+//   2) kForLoopWithSamplerArrayIndex: unroll where a sampler array index
+//      is also the loop integer index, and reject and fail a compile
+//      where a sampler array index is also the loop float index.
+class ForLoopUnrollMarker : public TIntermTraverser
+{
+  public:
+    enum UnrollCondition
+    {
+        kIntegerIndex,
+        kSamplerArrayIndex
+    };
+
+    ForLoopUnrollMarker(UnrollCondition condition, bool hasRunLoopValidation)
+        : TIntermTraverser(true, false, false),
+          mUnrollCondition(condition),
+          mSamplerArrayIndexIsFloatLoopIndex(false),
+          mVisitSamplerArrayIndexNodeInsideLoop(false),
+          mHasRunLoopValidation(hasRunLoopValidation)
+    {
+    }
+
+    bool visitBinary(Visit, TIntermBinary *node) override;
+    bool visitLoop(Visit, TIntermLoop *node) override;
+    void visitSymbol(TIntermSymbol *node) override;
+
+    bool samplerArrayIndexIsFloatLoopIndex() const
+    {
+        return mSamplerArrayIndexIsFloatLoopIndex;
+    }
+
+  private:
+    UnrollCondition mUnrollCondition;
+    TLoopStack mLoopStack;
+    bool mSamplerArrayIndexIsFloatLoopIndex;
+    bool mVisitSamplerArrayIndexNodeInsideLoop;
+    bool mHasRunLoopValidation;
+};
+
+}  // namespace sh
+
+#endif // COMPILER_TRANSLATOR_FORLOOPUNROLL_H_