1 files changed, 0 insertions, 159 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/RewriteDoWhile.cpp b/src/3rdparty/angle/src/compiler/translator/RewriteDoWhile.cpp
deleted file mode 100644
index dc3fb7a74e..0000000000
--- a/src/3rdparty/angle/src/compiler/translator/RewriteDoWhile.cpp
+++ /dev/null
@@ -1,159 +0,0 @@
-//
-// Copyright (c) 2015 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.
-//
-
-// RewriteDoWhile.cpp: rewrites do-while loops using another equivalent
-// construct.
-
-#include "compiler/translator/RewriteDoWhile.h"
-
-#include "compiler/translator/IntermTraverse.h"
-
-namespace sh
-{
-
-namespace
-{
-
-// An AST traverser that rewrites loops of the form
-//   do {
-//     CODE;
-//   } while (CONDITION)
-//
-// to loops of the form
-//   bool temp = false;
-//   while (true) {
-//     if (temp) {
-//       if (!CONDITION) {
-//         break;
-//       }
-//     }
-//     temp = true;
-//     CODE;
-//   }
-//
-// The reason we don't use a simpler form, with for example just (temp && !CONDITION) in the
-// while condition, is that short-circuit is often badly supported by driver shader compiler.
-// The double if has the same effect, but forces shader compilers to behave.
-//
-// TODO(cwallez) when UnfoldShortCircuitIntoIf handles loops correctly, revisit this as we might
-// be able to use while (temp || CONDITION) with temp initially set to true then run
-// UnfoldShortCircuitIntoIf
-class DoWhileRewriter : public TIntermTraverser
-{
-  public:
-    DoWhileRewriter(TSymbolTable *symbolTable) : TIntermTraverser(true, false, false, symbolTable)
-    {
-    }
-
-    bool visitBlock(Visit, TIntermBlock *node) override
-    {
-        // A well-formed AST can only have do-while inside TIntermBlock. By doing a prefix traversal
-        // we are able to replace the do-while in the sequence directly as the content of the
-        // do-while will be traversed later.
-
-        TIntermSequence *statements = node->getSequence();
-
-        // The statements vector will have new statements inserted when we encounter a do-while,
-        // which prevents us from using a range-based for loop. Using the usual i++ works, as
-        // the (two) new statements inserted replace the statement at the current position.
-        for (size_t i = 0; i < statements->size(); i++)
-        {
-            TIntermNode *statement = (*statements)[i];
-            TIntermLoop *loop      = statement->getAsLoopNode();
-
-            if (loop == nullptr || loop->getType() != ELoopDoWhile)
-            {
-                continue;
-            }
-
-            // Found a loop to change.
-            nextTemporaryId();
-
-            TType boolType = TType(EbtBool);
-
-            // bool temp = false;
-            TIntermDeclaration *tempDeclaration = nullptr;
-            {
-                TConstantUnion *falseConstant = new TConstantUnion();
-                falseConstant->setBConst(false);
-                TIntermTyped *falseValue = new TIntermConstantUnion(falseConstant, boolType);
-
-                tempDeclaration = createTempInitDeclaration(falseValue);
-            }
-
-            // temp = true;
-            TIntermBinary *assignTrue = nullptr;
-            {
-                TConstantUnion *trueConstant = new TConstantUnion();
-                trueConstant->setBConst(true);
-                TIntermTyped *trueValue = new TIntermConstantUnion(trueConstant, boolType);
-
-                assignTrue = createTempAssignment(trueValue);
-            }
-
-            // if (temp) {
-            //   if (!CONDITION) {
-            //     break;
-            //   }
-            // }
-            TIntermIfElse *breakIf = nullptr;
-            {
-                TIntermBranch *breakStatement = new TIntermBranch(EOpBreak, nullptr);
-
-                TIntermBlock *breakBlock = new TIntermBlock();
-                breakBlock->getSequence()->push_back(breakStatement);
-
-                TIntermUnary *negatedCondition =
-                    new TIntermUnary(EOpLogicalNot, loop->getCondition());
-
-                TIntermIfElse *innerIf = new TIntermIfElse(negatedCondition, breakBlock, nullptr);
-
-                TIntermBlock *innerIfBlock = new TIntermBlock();
-                innerIfBlock->getSequence()->push_back(innerIf);
-
-                breakIf = new TIntermIfElse(createTempSymbol(boolType), innerIfBlock, nullptr);
-            }
-
-            // Assemble the replacement loops, reusing the do-while loop's body and inserting our
-            // statements at the front.
-            TIntermLoop *newLoop = nullptr;
-            {
-                TConstantUnion *trueConstant = new TConstantUnion();
-                trueConstant->setBConst(true);
-                TIntermTyped *trueValue = new TIntermConstantUnion(trueConstant, boolType);
-
-                TIntermBlock *body = loop->getBody();
-                if (body == nullptr)
-                {
-                    body = new TIntermBlock();
-                }
-                auto sequence = body->getSequence();
-                sequence->insert(sequence->begin(), assignTrue);
-                sequence->insert(sequence->begin(), breakIf);
-
-                newLoop = new TIntermLoop(ELoopWhile, nullptr, trueValue, nullptr, body);
-            }
-
-            TIntermSequence replacement;
-            replacement.push_back(tempDeclaration);
-            replacement.push_back(newLoop);
-
-            node->replaceChildNodeWithMultiple(loop, replacement);
-        }
-        return true;
-    }
-};
-
-}  // anonymous namespace
-
-void RewriteDoWhile(TIntermNode *root, TSymbolTable *symbolTable)
-{
-    DoWhileRewriter rewriter(symbolTable);
-
-    root->traverse(&rewriter);
-}
-
-}  // namespace sh