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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/d3d/SeparateArrayConstructorStatements.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/d3d/SeparateArrayConstructorStatements.cpp')
-rw-r--r-- | gfx/angle/checkout/src/compiler/translator/tree_ops/d3d/SeparateArrayConstructorStatements.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/compiler/translator/tree_ops/d3d/SeparateArrayConstructorStatements.cpp b/gfx/angle/checkout/src/compiler/translator/tree_ops/d3d/SeparateArrayConstructorStatements.cpp new file mode 100644 index 0000000000..170b29acd7 --- /dev/null +++ b/gfx/angle/checkout/src/compiler/translator/tree_ops/d3d/SeparateArrayConstructorStatements.cpp @@ -0,0 +1,83 @@ +// +// Copyright 2018 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. +// +// SeparateArrayConstructorStatements splits statements that are array constructors and drops all of +// their constant arguments. For example, a statement like: +// int[2](0, i++); +// Will be changed to: +// i++; + +#include "compiler/translator/tree_ops/d3d/SeparateArrayConstructorStatements.h" + +#include "compiler/translator/tree_util/IntermTraverse.h" + +namespace sh +{ + +namespace +{ + +void SplitConstructorArgs(const TIntermSequence &originalArgs, TIntermSequence *argsOut) +{ + for (TIntermNode *arg : originalArgs) + { + TIntermTyped *argTyped = arg->getAsTyped(); + if (argTyped->hasSideEffects()) + { + TIntermAggregate *argAggregate = argTyped->getAsAggregate(); + if (argTyped->isArray() && argAggregate && argAggregate->isConstructor()) + { + SplitConstructorArgs(*argAggregate->getSequence(), argsOut); + } + else + { + argsOut->push_back(argTyped); + } + } + } +} + +class SeparateArrayConstructorStatementsTraverser : public TIntermTraverser +{ + public: + SeparateArrayConstructorStatementsTraverser(); + + bool visitAggregate(Visit visit, TIntermAggregate *node) override; +}; + +SeparateArrayConstructorStatementsTraverser::SeparateArrayConstructorStatementsTraverser() + : TIntermTraverser(true, false, false) +{} + +bool SeparateArrayConstructorStatementsTraverser::visitAggregate(Visit visit, + TIntermAggregate *node) +{ + TIntermBlock *parentAsBlock = getParentNode()->getAsBlock(); + if (!parentAsBlock) + { + return false; + } + if (!node->isArray() || !node->isConstructor()) + { + return false; + } + + TIntermSequence constructorArgs; + SplitConstructorArgs(*node->getSequence(), &constructorArgs); + mMultiReplacements.emplace_back(parentAsBlock, node, std::move(constructorArgs)); + + return false; +} + +} // namespace + +bool SeparateArrayConstructorStatements(TCompiler *compiler, TIntermBlock *root) +{ + SeparateArrayConstructorStatementsTraverser traverser; + root->traverse(&traverser); + return traverser.updateTree(compiler, root); +} + +} // namespace sh |