211   if (const auto *ptrOrAlloc = actual.getBoxOf<fir::MutableBoxValue>())  in genActualIsPresentTest()
397       [&](const fir::MutableBoxValue &box) -> fir::ExtendedValue {  in genLoad()
448   if (const auto *box = exv.getBoxOf<fir::MutableBoxValue>())  in genOptionalAddr()
470   if (const auto *box = exv.getBoxOf<fir::MutableBoxValue>())  in genOptionalBox()
666   fir::MutableBoxValue
677     const fir::MutableBoxValue *mutableBox =  in genMutableBoxValue()
678         exv.getBoxOf<fir::MutableBoxValue>();  in genMutableBoxValue()
704     return fir::MutableBoxValue(builder.createConvert(loc, nullBoxTy, temp),  in genMutableBoxValueImpl()
1095           [&](const fir::MutableBoxValue &toBox) {  in genval()
1897         [&](const fir::MutableBoxValue &mutableBox) {  in gen()
2367       return fir::MutableBoxValue(base, lengths, /*mutableProperties*/ {});  in toExtendedValue()
2449     if (const auto *box = res.getBoxOf<fir::MutableBoxValue>())  in genProcedureRef()
2688           [&](const fir::MutableBoxValue &box) {  in genCallOpAndResult()
2872       fir::MutableBoxValue mutableBox = genMutableBoxValue(expr);  in prepareActualThatMayBeAbsent()
3041     llvm::SmallVector<fir::MutableBoxValue> mutableModifiedByCall;  in genRawProcedureRef()
3101           fir::MutableBoxValue pointer(irBox,  in genRawProcedureRef()
3110         fir::MutableBoxValue mutableBox = genMutableBoxValue(*expr);  in genRawProcedureRef()
3165           fir::MutableBoxValue mutableBox = genMutableBoxValue(*expr);  in genRawProcedureRef()
3727     fir::MutableBoxValue mutableBox =  in lowerAllocatableArrayAssignment()
6140     if (const auto *mutableBox = exv.getBoxOf<fir::MutableBoxValue>())  in genOptionalArrayFetch()
6293             [&](const fir::MutableBoxValue &box) {  in computeElementSize()
7598 fir::MutableBoxValue Fortran::lower::createMutableBox(  in createMutableBox()