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// Copyright 2023 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "src/tint/lang/core/ir/swizzle.h"
#include <utility>
#include "src/tint/lang/core/ir/clone_context.h"
#include "src/tint/lang/core/ir/module.h"
#include "src/tint/utils/ice/ice.h"
TINT_INSTANTIATE_TYPEINFO(tint::core::ir::Swizzle);
namespace tint::core::ir {
Swizzle::Swizzle() = default;
Swizzle::Swizzle(InstructionResult* result, Value* object, VectorRef<uint32_t> indices)
: indices_(std::move(indices)) {
TINT_ASSERT(!indices.IsEmpty());
TINT_ASSERT(indices.Length() <= 4);
AddOperand(Swizzle::kObjectOperandOffset, object);
AddResult(result);
for (auto idx : indices_) {
TINT_ASSERT(idx < 4);
}
}
Swizzle::~Swizzle() = default;
Swizzle* Swizzle::Clone(CloneContext& ctx) {
auto* result = ctx.Clone(Result(0));
auto* obj = ctx.Remap(Object());
return ctx.ir.allocators.instructions.Create<Swizzle>(result, obj, indices_);
}
} // namespace tint::core::ir