src/tint/lang/wgsl/ast/transform/std140_fuzz.cc

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#include "src/tint/cmd/fuzz/wgsl/fuzz.h"
#include "src/tint/lang/core/address_space.h"
#include "src/tint/lang/core/type/pointer.h"
#include "src/tint/lang/wgsl/ast/module.h"
#include "src/tint/lang/wgsl/ast/transform/std140.h"
#include "src/tint/lang/wgsl/sem/function.h"

namespace tint::ast::transform {
namespace {

bool CanRun(const Program& program) {
    for (auto* fn : program.AST().Functions()) {
        auto* sem_fn = program.Sem().Get(fn);
        for (auto* param : sem_fn->Parameters()) {
            if (auto* ptr = param->Type()->As<core::type::Pointer>()) {
                if (ptr->AddressSpace() == core::AddressSpace::kUniform) {
                    return false;  // Requires the DirectVariableAccess transform
                }
            }
        }
    }
    return true;
}

void Std140Fuzzer(const Program& program) {
    if (!CanRun(program)) {
        return;
    }

    DataMap outputs;
    if (auto result = Std140{}.Apply(program, DataMap{}, outputs)) {
        if (!result->IsValid()) {
            TINT_ICE() << "Std140 returned invalid program:\n" << result->Diagnostics();
        }
    }
}

}  // namespace
}  // namespace tint::ast::transform

TINT_WGSL_PROGRAM_FUZZER(tint::ast::transform::Std140Fuzzer);