webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 0 insertions, 184 deletions

diff --git a/Source/ThirdParty/ANGLE/src/compiler/UnfoldShortCircuit.cpp b/Source/ThirdParty/ANGLE/src/compiler/UnfoldShortCircuit.cpp
deleted file mode 100644
index 5cfdd3230..000000000
--- a/Source/ThirdParty/ANGLE/src/compiler/UnfoldShortCircuit.cpp
+++ /dev/null
@@ -1,184 +0,0 @@
-//
-// Copyright (c) 2002-2013 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.
-//
-// UnfoldShortCircuit is an AST traverser to output short-circuiting operators as if-else statements.
-// The results are assigned to s# temporaries, which are used by the main translator instead of
-// the original expression.
-//
-
-#include "compiler/UnfoldShortCircuit.h"
-
-#include "compiler/InfoSink.h"
-#include "compiler/OutputHLSL.h"
-
-namespace sh
-{
-UnfoldShortCircuit::UnfoldShortCircuit(TParseContext &context, OutputHLSL *outputHLSL) : mContext(context), mOutputHLSL(outputHLSL)
-{
-    mTemporaryIndex = 0;
-}
-
-void UnfoldShortCircuit::traverse(TIntermNode *node)
-{
-    int rewindIndex = mTemporaryIndex;
-    node->traverse(this);
-    mTemporaryIndex = rewindIndex;
-}
-
-bool UnfoldShortCircuit::visitBinary(Visit visit, TIntermBinary *node)
-{
-    TInfoSinkBase &out = mOutputHLSL->getBodyStream();
-
-    // If our right node doesn't have side effects, we know we don't need to unfold this
-    // expression: there will be no short-circuiting side effects to avoid
-    // (note: unfolding doesn't depend on the left node -- it will always be evaluated)
-    if (!node->getRight()->hasSideEffects())
-    {
-        return true;
-    }
-
-    switch (node->getOp())
-    {
-      case EOpLogicalOr:
-        // "x || y" is equivalent to "x ? true : y", which unfolds to "bool s; if(x) s = true; else s = y;",
-        // and then further simplifies down to "bool s = x; if(!s) s = y;".
-        {
-            int i = mTemporaryIndex;
-
-            out << "bool s" << i << ";\n";
-
-            out << "{\n";
-
-            mTemporaryIndex = i + 1;
-            node->getLeft()->traverse(this);
-            out << "s" << i << " = ";
-            mTemporaryIndex = i + 1;
-            node->getLeft()->traverse(mOutputHLSL);
-            out << ";\n";
-            out << "if (!s" << i << ")\n"
-                   "{\n";
-            mTemporaryIndex = i + 1;
-            node->getRight()->traverse(this);
-            out << "    s" << i << " = ";
-            mTemporaryIndex = i + 1;
-            node->getRight()->traverse(mOutputHLSL);
-            out << ";\n"
-                   "}\n";
-
-            out << "}\n";
-
-            mTemporaryIndex = i + 1;
-        }
-        return false;
-      case EOpLogicalAnd:
-        // "x && y" is equivalent to "x ? y : false", which unfolds to "bool s; if(x) s = y; else s = false;",
-        // and then further simplifies down to "bool s = x; if(s) s = y;".
-        {
-            int i = mTemporaryIndex;
-
-            out << "bool s" << i << ";\n";
-
-            out << "{\n";
-
-            mTemporaryIndex = i + 1;
-            node->getLeft()->traverse(this);
-            out << "s" << i << " = ";
-            mTemporaryIndex = i + 1;
-            node->getLeft()->traverse(mOutputHLSL);
-            out << ";\n";
-            out << "if (s" << i << ")\n"
-                   "{\n";
-            mTemporaryIndex = i + 1;
-            node->getRight()->traverse(this);
-            out << "    s" << i << " = ";
-            mTemporaryIndex = i + 1;
-            node->getRight()->traverse(mOutputHLSL);
-            out << ";\n"
-                   "}\n";
-
-            out << "}\n";
-
-            mTemporaryIndex = i + 1;
-        }
-        return false;
-      default:
-        return true;
-    }
-}
-
-bool UnfoldShortCircuit::visitSelection(Visit visit, TIntermSelection *node)
-{
-    TInfoSinkBase &out = mOutputHLSL->getBodyStream();
-
-    // Unfold "b ? x : y" into "type s; if(b) s = x; else s = y;"
-    if (node->usesTernaryOperator())
-    {
-        int i = mTemporaryIndex;
-
-        out << mOutputHLSL->typeString(node->getType()) << " s" << i << ";\n";
-
-        out << "{\n";
-
-        mTemporaryIndex = i + 1;
-        node->getCondition()->traverse(this);
-        out << "if (";
-        mTemporaryIndex = i + 1;
-        node->getCondition()->traverse(mOutputHLSL);
-        out << ")\n"
-               "{\n";
-        mTemporaryIndex = i + 1;
-        node->getTrueBlock()->traverse(this);
-        out << "    s" << i << " = ";
-        mTemporaryIndex = i + 1;
-        node->getTrueBlock()->traverse(mOutputHLSL);
-        out << ";\n"
-               "}\n"
-               "else\n"
-               "{\n";
-        mTemporaryIndex = i + 1;
-        node->getFalseBlock()->traverse(this);
-        out << "    s" << i << " = ";
-        mTemporaryIndex = i + 1;
-        node->getFalseBlock()->traverse(mOutputHLSL);
-        out << ";\n"
-               "}\n";
-
-        out << "}\n";
-
-        mTemporaryIndex = i + 1;
-    }
-
-    return false;
-}
-
-bool UnfoldShortCircuit::visitLoop(Visit visit, TIntermLoop *node)
-{
-    int rewindIndex = mTemporaryIndex;
-
-    if (node->getInit())
-    {
-        node->getInit()->traverse(this);
-    }
-    
-    if (node->getCondition())
-    {
-        node->getCondition()->traverse(this);
-    }
-
-    if (node->getExpression())
-    {
-        node->getExpression()->traverse(this);
-    }
-
-    mTemporaryIndex = rewindIndex;
-
-    return false;
-}
-
-int UnfoldShortCircuit::getNextTemporaryIndex()
-{
-    return mTemporaryIndex++;
-}
-}