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| author | peter klausler <pklausler@nvidia.com> | 2021-07-19 11:53:20 -0700 |
|---|---|---|
| committer | peter klausler <pklausler@nvidia.com> | 2021-07-20 15:24:16 -0700 |
| commit | a48e41683ae1a9b9a5bde750d3b418a205c28cc8 (patch) | |
| tree | f69cfc03cacc982926163fda300e8e8e67ca034a /flang/module | |
| parent | 40a02fae87ca7de676f6b9d96532c760130ccc68 (diff) | |
| download | llvm-a48e41683ae1a9b9a5bde750d3b418a205c28cc8.tar.gz | |
[flang] Run-time derived type initialization and destruction
Use derived type information tables to drive default component
initialization (when needed), component destruction, and calls to
final subroutines. Perform these operations automatically for
ALLOCATE()/DEALLOCATE() APIs for allocatables, automatics, and
pointers. Add APIs for use in lowering to perform these operations
for non-allocatable/automatic non-pointer variables.
Data pointer component initialization supports arbitrary constant
designators, a F'2008 feature, which may be a first for Fortran
implementations.
Differential Revision: https://reviews.llvm.org/D106297
Diffstat (limited to 'flang/module')
| -rw-r--r-- | flang/module/__fortran_type_info.f90 | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/flang/module/__fortran_type_info.f90 b/flang/module/__fortran_type_info.f90 index c2a9ed16e10b..dcdc5619a861 100644 --- a/flang/module/__fortran_type_info.f90 +++ b/flang/module/__fortran_type_info.f90 @@ -33,19 +33,22 @@ module __Fortran_type_info type(Binding), pointer, contiguous :: binding(:) character(len=:), pointer :: name integer(kind=int64) :: sizeInBytes - type(DerivedType), pointer :: parent ! Instances of parameterized derived types use the "uninstantiated" ! component to point to the pristine original definition. type(DerivedType), pointer :: uninstantiated integer(kind=int64) :: typeHash integer(kind=int64), pointer, contiguous :: kindParameter(:) ! values of instance integer(1), pointer, contiguous :: lenParameterKind(:) ! INTEGER kinds of LEN types - ! Data components appear in alphabetic order. - ! The parent component, if any, appears explicitly. + ! Data components appear in component order. + ! The parent component, if any, appears explicitly and first. type(Component), pointer, contiguous :: component(:) ! data components type(ProcPtrComponent), pointer, contiguous :: procptr(:) ! procedure pointers ! Special bindings of the ancestral types are not duplicated here. type(SpecialBinding), pointer, contiguous :: special(:) + integer(1) :: hasParent + integer(1) :: noInitializationNeeded ! 1 if no component w/ init + integer(1) :: noDestructionNeeded ! 1 if no component w/ dealloc/final + integer(1) :: __padding0(5) end type type :: Binding |