src/tint/lang/core/ir/swizzle.cc

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#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.instructions.Create<Swizzle>(result, obj, indices_);
}

}  // namespace tint::core::ir