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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /gfx/angle/checkout/src/compiler/translator/tree_ops/apple/AddAndTrueToLoopCondition.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/angle/checkout/src/compiler/translator/tree_ops/apple/AddAndTrueToLoopCondition.cpp')
-rw-r--r-- | gfx/angle/checkout/src/compiler/translator/tree_ops/apple/AddAndTrueToLoopCondition.cpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/compiler/translator/tree_ops/apple/AddAndTrueToLoopCondition.cpp b/gfx/angle/checkout/src/compiler/translator/tree_ops/apple/AddAndTrueToLoopCondition.cpp new file mode 100644 index 0000000000..36e426f8e1 --- /dev/null +++ b/gfx/angle/checkout/src/compiler/translator/tree_ops/apple/AddAndTrueToLoopCondition.cpp @@ -0,0 +1,60 @@ +// +// Copyright 2016 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. +// + +#include "compiler/translator/tree_ops/apple/AddAndTrueToLoopCondition.h" + +#include "compiler/translator/Compiler.h" +#include "compiler/translator/tree_util/IntermNode_util.h" +#include "compiler/translator/tree_util/IntermTraverse.h" + +namespace sh +{ + +namespace +{ + +// An AST traverser that rewrites for and while loops by replacing "condition" with +// "condition && true" to work around condition bug on Intel Mac. +class AddAndTrueToLoopConditionTraverser : public TIntermTraverser +{ + public: + AddAndTrueToLoopConditionTraverser() : TIntermTraverser(true, false, false) {} + + bool visitLoop(Visit, TIntermLoop *loop) override + { + // do-while loop doesn't have this bug. + if (loop->getType() != ELoopFor && loop->getType() != ELoopWhile) + { + return true; + } + + // For loop may not have a condition. + if (loop->getCondition() == nullptr) + { + return true; + } + + // Constant true. + TIntermTyped *trueValue = CreateBoolNode(true); + + // CONDITION && true. + TIntermBinary *andOp = new TIntermBinary(EOpLogicalAnd, loop->getCondition(), trueValue); + loop->setCondition(andOp); + + return true; + } +}; + +} // anonymous namespace + +bool AddAndTrueToLoopCondition(TCompiler *compiler, TIntermNode *root) +{ + AddAndTrueToLoopConditionTraverser traverser; + root->traverse(&traverser); + return compiler->validateAST(root); +} + +} // namespace sh |