1 files changed, 0 insertions, 186 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/UnfoldShortCircuitToIf.cpp b/src/3rdparty/angle/src/compiler/translator/UnfoldShortCircuitToIf.cpp
deleted file mode 100644
index 774f1fc704..0000000000
--- a/src/3rdparty/angle/src/compiler/translator/UnfoldShortCircuitToIf.cpp
+++ /dev/null
@@ -1,186 +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.
-//
-// UnfoldShortCircuitToIf is an AST traverser to convert short-circuiting operators to if-else
-// statements.
-// The results are assigned to s# temporaries, which are used by the main translator instead of
-// the original expression.
-//
-
-#include "compiler/translator/UnfoldShortCircuitToIf.h"
-
-#include "compiler/translator/IntermNodePatternMatcher.h"
-#include "compiler/translator/IntermTraverse.h"
-
-namespace sh
-{
-
-namespace
-{
-
-// Traverser that unfolds one short-circuiting operation at a time.
-class UnfoldShortCircuitTraverser : public TIntermTraverser
-{
-  public:
-    UnfoldShortCircuitTraverser(TSymbolTable *symbolTable);
-
-    bool visitBinary(Visit visit, TIntermBinary *node) override;
-    bool visitTernary(Visit visit, TIntermTernary *node) override;
-
-    void nextIteration();
-    bool foundShortCircuit() const { return mFoundShortCircuit; }
-
-  protected:
-    // Marked to true once an operation that needs to be unfolded has been found.
-    // After that, no more unfolding is performed on that traversal.
-    bool mFoundShortCircuit;
-
-    IntermNodePatternMatcher mPatternToUnfoldMatcher;
-};
-
-UnfoldShortCircuitTraverser::UnfoldShortCircuitTraverser(TSymbolTable *symbolTable)
-    : TIntermTraverser(true, false, true, symbolTable),
-      mFoundShortCircuit(false),
-      mPatternToUnfoldMatcher(IntermNodePatternMatcher::kUnfoldedShortCircuitExpression)
-{
-}
-
-bool UnfoldShortCircuitTraverser::visitBinary(Visit visit, TIntermBinary *node)
-{
-    if (mFoundShortCircuit)
-        return false;
-
-    if (visit != PreVisit)
-        return true;
-
-    if (!mPatternToUnfoldMatcher.match(node, getParentNode()))
-        return true;
-
-    // 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)
-    ASSERT(node->getRight()->hasSideEffects());
-
-    mFoundShortCircuit = 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;".
-
-            TIntermSequence insertions;
-            TType boolType(EbtBool, EbpUndefined, EvqTemporary);
-
-            ASSERT(node->getLeft()->getType() == boolType);
-            insertions.push_back(createTempInitDeclaration(node->getLeft()));
-
-            TIntermBlock *assignRightBlock = new TIntermBlock();
-            ASSERT(node->getRight()->getType() == boolType);
-            assignRightBlock->getSequence()->push_back(createTempAssignment(node->getRight()));
-
-            TIntermUnary *notTempSymbol =
-                new TIntermUnary(EOpLogicalNot, createTempSymbol(boolType));
-            TIntermIfElse *ifNode = new TIntermIfElse(notTempSymbol, assignRightBlock, nullptr);
-            insertions.push_back(ifNode);
-
-            insertStatementsInParentBlock(insertions);
-
-            queueReplacement(createTempSymbol(boolType), OriginalNode::IS_DROPPED);
-            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;".
-            TIntermSequence insertions;
-            TType boolType(EbtBool, EbpUndefined, EvqTemporary);
-
-            ASSERT(node->getLeft()->getType() == boolType);
-            insertions.push_back(createTempInitDeclaration(node->getLeft()));
-
-            TIntermBlock *assignRightBlock = new TIntermBlock();
-            ASSERT(node->getRight()->getType() == boolType);
-            assignRightBlock->getSequence()->push_back(createTempAssignment(node->getRight()));
-
-            TIntermIfElse *ifNode =
-                new TIntermIfElse(createTempSymbol(boolType), assignRightBlock, nullptr);
-            insertions.push_back(ifNode);
-
-            insertStatementsInParentBlock(insertions);
-
-            queueReplacement(createTempSymbol(boolType), OriginalNode::IS_DROPPED);
-            return false;
-        }
-        default:
-            UNREACHABLE();
-            return true;
-    }
-}
-
-bool UnfoldShortCircuitTraverser::visitTernary(Visit visit, TIntermTernary *node)
-{
-    if (mFoundShortCircuit)
-        return false;
-
-    if (visit != PreVisit)
-        return true;
-
-    if (!mPatternToUnfoldMatcher.match(node))
-        return true;
-
-    mFoundShortCircuit = true;
-
-    // Unfold "b ? x : y" into "type s; if(b) s = x; else s = y;"
-    TIntermSequence insertions;
-
-    TIntermDeclaration *tempDeclaration = createTempDeclaration(node->getType());
-    insertions.push_back(tempDeclaration);
-
-    TIntermBlock *trueBlock       = new TIntermBlock();
-    TIntermBinary *trueAssignment = createTempAssignment(node->getTrueExpression());
-    trueBlock->getSequence()->push_back(trueAssignment);
-
-    TIntermBlock *falseBlock       = new TIntermBlock();
-    TIntermBinary *falseAssignment = createTempAssignment(node->getFalseExpression());
-    falseBlock->getSequence()->push_back(falseAssignment);
-
-    TIntermIfElse *ifNode =
-        new TIntermIfElse(node->getCondition()->getAsTyped(), trueBlock, falseBlock);
-    insertions.push_back(ifNode);
-
-    insertStatementsInParentBlock(insertions);
-
-    TIntermSymbol *ternaryResult = createTempSymbol(node->getType());
-    queueReplacement(ternaryResult, OriginalNode::IS_DROPPED);
-
-    return false;
-}
-
-void UnfoldShortCircuitTraverser::nextIteration()
-{
-    mFoundShortCircuit = false;
-    nextTemporaryId();
-}
-
-}  // namespace
-
-void UnfoldShortCircuitToIf(TIntermNode *root, TSymbolTable *symbolTable)
-{
-    UnfoldShortCircuitTraverser traverser(symbolTable);
-    // Unfold one operator at a time, and reset the traverser between iterations.
-    do
-    {
-        traverser.nextIteration();
-        root->traverse(&traverser);
-        if (traverser.foundShortCircuit())
-            traverser.updateTree();
-    } while (traverser.foundShortCircuit());
-}
-
-}  // namespace sh