Psyclone

1) PR 2477 for 2463. Add support for Fortran Namelist statements.

2) PR 2367 for 2296. Extends ModuleInfo so that it can be queried
for the Routines contained in a Module.

3) PR 2435 for 2422. Add PSyIR GenericInterface to capture the
information about which routines implement a specific interface symbol.

4) PR 2457 for 2455. Splitting and renaming DynDofMaps from
dynamo0p3.py.

5) PR 2506. Update test and integration test dependencies.

6) PR 2508 for 2507. Add a symbols_to_ignore argument to some
symbol_table operations and use it to fix inline transformation issues.

7) PR 2505 towards 1010. Use the PSyIR Fortran backend for LFRic
loops and anything inside them.

8) PR 2516 for 2513. Resolve flake8 issues and make it the only CI
linter.

9) PR 2512 towards 11. Adds comments giving the reason for any
CodeBlocks in the generated code.

10) PR 2474 for 2409. Adds comments to the generated LFRic PSy
layer describing any built-in kernels.

11) PR 2511 for 2510. Array2Loop transformations avoid character arrays
unless requested in the transformation options.

12) PR 2521 for 2520. Fix issue with line_length runme example.

13) PR 2539 for 2538. Add PSyIR Symbol PreprocessorInterface.

14) PR 2540 for 2537. Add 'allow_renaming' parameter to the symbol_table
new_symbol method and improve its import handling.

15) PR 2497 for 2496. Updates the GOcean access-info functionality
to use PSyIR rather than strings for indices.

16) PR 2549 for 2548. Update Codecov action.

17) PR 2396 for 2229. Add PSyIR support for select-type (the selector is
still a CodeBlock but the case bodies are transferred to a conditional
construct after the CodeBlock).

18) PR 2545 for 2544. Accept -c as shortcut for --config in the CLIs.

19) PR 2527 for 1495. Add PSyIR support for type-bound procedure
calls.

20) PR 2529 towards 1779. Generalise NemoArrayAccess2Loop
transformation to ArrayAccess2Loop.

21) PR 2517 for 2515. Fix bugs in the symbol_table merge method.

22) PR 2553 for 2449. Add next/previous_access reference method.

23) PR 2557 towards 2543. Update the introduction to the User
Guide and the top-level README.

24) PR 2560 for 2559. Marks the PRODUCT intrinsic as available on
accelerator devices.

25) PR 2581 for 2576. Updates a tutorial README to remove a now-
dead link to the VMWare KnowledgeBase from a quoted VMWare error
message.

26) PR 2571 for 2569. Update integration tests for new system
(lfric still has issues that will be resolved separately).

27) PR 2567 for 1333. Fixes bug in Fortran backend with missing
parentheses for unary minus operator.

28) PR 2579 for 2578. Fix missing location update for Call node
in DA tooling.

29) PR 2556 towards 1351. Documents the new OPERATES_ON=dof
LFRic kernel type.

30) PR 2252 for 1990. Support extraction of kernels that import
variables from other modules.

31) PR 2547 towards 1779. Removes the NemoLoop node and makes
the loop_type inference rules part of generic PSyIR.

32) PR 2590 fpr 2589. Moves to the latest LFRic (split repo)
and fixes the LFRic integration tests.

33) PR 2452 for 2451. Move and rename DynInvokeSchedule to
LFRicInvokeSchedule.

34) PR 2574 for 2196. Add support for use-intrinsic imports.

35) PR 2566 towards 2156. Bug fixes for routines declared as
ELEMENTAL or IMPURE. (Alters the Fortran backend and
Routine.copy().)

36) PR 2572 for 2195. Improves SymbolTable.__str__ such that
Symbols are listed by type and in alpha-order.

37) PR 2593 for 1779. Removes the 'default' API concept and
renames 'dynamo0.3' -> 'lfric' and 'gocean0.1' -> 'gocean'.

38) PR 2599. Update integration test dependencies.

39) PR 2564 for $2462. Generalise ModuleManager.

40) PR 2598 towards 2543. Refresh the PSyKAl-related documentation
in both the User and Developer Guides.

41) PR 2611. Update Integration tests nvhpc mpi library path.

42) PR 2614 towards 2604. Fixes broken links to the docs in the
various tutorial READMEs.

43) PR 2587 for 1989. Improves the statistics produced by the
generated PSyKE driver code.

44) PR 2602 for 1596. Exclude assumed-size variable references from
the ACCKernels regions.

45) PR 2603 for 1841. Refactors the ArrayRange2Loop transformation
(merging in functionality from the NEMO-specific version). Renames it
to ArrayAssignment2LoopsTrans.

46) PR 2615 for 2610. Fixes various spurious warnings that were
being produced by the lfric/eg17/full_example_extract example.

47) PR 2625 for 2619. Adds a create function for OMPParallelDoDirective
to avoid issues from using its parent class' create method.

48) PR 2609 for 2407. The OpenACC routine directive and transformation
now accept a "parallelism" attribute to set the level of parallelism, which
is mandatory in recent OpenACC standards.

49) PR 2626 for 2622. Adds convenience methods to the SymbolTable for
manipulating Routine argument lists.

50) PR 2607 FOR 2600. Update psyclone command and script interface
to remove mention of 'nemo' API.

51) PR 2575 towards 2201. Allow FileContainer to have symbols of their
inner subroutines. It also solves an issue with missing PURE, ELEMENTAL, ...

52) PR 2632 for 2116. Update the code-transformation tutorial.

53) PR 2639 for 2638. Upgrade CI markdown-linkcheck to linkspector.

54) PR 2583 towards 2577. Adds partial support for pointer
assignments. (Array accessors within structures are not supported.)
Pointer *declarations* will still result in symbols of
UnsupportedFortranType.

55) PR 2445 for 2444. Changes the kernel-extraction tooling so
that filenames are construction using dashes instead of colons.

56) PR 2646 for 2641. Fixes incorrect module names within the
PSyData API (e.g. when profiling).

57) PR 2647 for 1992. Adds MPI support to PSyKE. Each rank will write
its own output file(s). The generated driver has been extended so that
the name of the file to use can be specified on the command line.

58) PR 2637 for 2138. Add Fortran frontend support to parser array
declarations with expressions in their shape dimensions.

59) PR 2649 towards 2586. Adds support for pointer assignments of
the form `var =[>] this[%...]%procedure(...)`.

60) PR 2645 towards 2585. Add an optional "otherwise" argument to
the SymbolTalbe lookup method.

61) PR 2633 for 2125. Introduces the "replace_symbols_using" method
to guarantee that PSyIR trees after a copy have references to the
updated symbols (including in attributes that are not directly in the
tree).

62) PR 2662 for 2082. Fixes HoistTrans so that it checks for
possible side-effects. Also now removes the parent Loop if the hoist means
it no longer has a body.

63) PR 2660 for 1370. Adds 'collapse' and 'ignore_dependencies_for'
options to ParallelLoopTrans.

64) PR 2653. Add example using the PSyclone xDSL MLIR backend.

65) PR 2673 for 2652. Find the symbol name containing a kernel metadata
by searching the PSyIR (instead of assuming the name).

66) PR 2651 for 2617. Fixes PSyKE driver create for LFRic in the
event of a call to a generic routine interface.

67) PR 2650 for 2630. Adds basic support for DATA statements in the
fparser2 frontend.

68) PR 2679 for 2676. Adds check for impure calls to the
ParallelLoopTrans.validate method. This fixes a race condition in the
sea-ice code in NEMO. Updates the NEMO workflow so that error
reporting is improved and timing results no longer uploaded to gist.

69) PR 2656 for 2634. Fixes and improvements for the 'nemo' tutorials.

70) PR 2413 towards 924. Add find_container_psyir, find_routine_psyir
and get_callees utilities to simplify the inlining transformation.

71) PR 2523 towards 1719. Add the poly_{1,2}d_reconstruction kernels
and tweak the adjoint README files.

72) PR 2675 towards 1351. Refactors the LFRic metadata checking and
adds support for user-supplied kernels that operate on dofs.

73) PR 2700 for 2699. Fix docstring error for Config class.

74) PR 2698 for 2629. Fix NEMOv5 issues and extend related
integration tests.

75) PR 2710 for 2665. Improves error messages for line-length and
kernel arguments.

76) PR 2692 for 2691. Increase recursion limit when handling
conditional statements with many branches. Disable final tree copy
when generating code.

77) PR 2708 for 2663. Add LFRic OpenACC in the integration tests.

78) PR 2678 for 2636. Alter LFRic PSy-layer to lookup nlayers for
each kernel.

79) PR 2687 for 2684. Add support for WHERE constructs that contain
references without range-notation (and prevent some incorrect cases).

80) PR 2596 for 2592 and 2582. Routine nodes manage their own
symbols from their parent scope.

81) PR 2725 to close 717. Removes some TODOs and associated utility code
from the fparser2 frontend that is now unused.

82) PR 2733 for 2730. Adds OpenMP offloading support for LFRic plus
associated integration test.

83) PR 2743 for 2742. Ensure generated code for function spaces in
LFRic is always in a consistent order.

84) PR 2746. Update minor versions of CUDA, HDF5, nvfortran and
Python used in the CI.

85) PR 2748. Revert Python used on RTD to 3.12 as 3.13 unsupported.

86) PR 2707 for 257. Fixes bugs in the loop-fusion transformation.

87) PR 2752 towards 2717. Adds Assignment.is_literal_assignment property.

88) PR 2753 towards 2717. Adds DataNode.is_character method.

89) PR 2712 for 2711. Adds support for user-supplied Kernels that
operate on dofs (in the LFRic API).

99) PR 2685 for 2027. Improves datatype and shape inference.

100) PR 2694 for 2690. Extends the PSyData NaN-checking tooling to
perform value verification.

101) PR 2749 for 2311. Alters test-harness generation for the LFRic
API in PSyAD to base the generated test-code filenames on the name of
the supplied LFRic Algorithm file.

102) PR 2763 towards 2717. Upstreams PSyACC functionality: ensures
that clauses on an OpenACC directive are consistent.

103) PR 2734 towards 2704. Implements the forward_dependency part of
the new DefinitionUseChain PSyIR tool.

104) PR 2761 for 2739. Updates the signature of the PSyKAl
transformation script to accept a PSyIR node.

105) PR 2745 for 2661. Add support for kernels that operate on halos.

106) PR 2770 towards 2543. Improve UG introduction.

107) PR 2776 for 1280. Fixes ref_guide warnings.

108) PR 2767 for 2755. Bug fix for psyad failing to transform array
assignment

109) PR 2785 towards 759. Populates partial_datatype for OPTIONAL.

110) PR 2789 for 2778. Removes some old TODOs now that kernel
extraction for GOcean has been improved.

111) PR 2791 for 2790. Updates the dl_esm_inf git submodule to point
to the latest version.

112) PR 2795 for 2774. Generalises MatMul2CodeTrans to cope with
non-contiguous array slices.

113) PR 2769 for 2768. Generalises Sign2CodeTrans and Abs2CodeTrans
to allow non-floating point scalar literals.

114) PR 2461 for 2460. Renames DynamoPSy class to LFRicPSy and moves
into a new module lfric_psy.py in domain/lfric.

115) PR 2697 towards 2671. Fixes various issues relating to incorrect
parallelisation of loops in NEMO. Also adds support for array-
privatisation option.

116) PR 2804 towards 2737. Update PSyclone to use fparser 0.2.0 release.

117) PR 2803 for 2796. Fixes bug where PSyData nodes inserted within
LFRic loops did not have the associated variable declared.

118) PR 2792 for 2766. Updates to all the examples and test
infrastructure now that the index ordering for operators in LFRic
has been changed.

119) PR 2775. Adds Call.get_callee() which matches the arguments of
a Call against the signature of potential callees.

120) PR 2628 for 2624. Improves debug_string output for Schedules.

121) PR 2800. Updates integration test dependencies and documentation
about compiling for GPUs.

122) PR 2811. Adds sphinx-autodoc-typehints package to 'doc'
dependencies so that Sphinx markup is able to make use of the
typehints that we are starting to add to the code base.

123) PR 2809 for 2737. Updates documentation on OpenMP to point to
examples of tranformations for CPU and GPU.

124) PR 2815 for 2636. Get nlayers from first field or operator
argument to each kernel in LFRic.

125) PR 2817 for 2816. Fix index type in initialisation of arrays
of fields in PSyAD test harness construction.

1) PR 2199 for 2189. Fix bugs with missing maps in enter data
directive.

2) PR 2269 for 2268. Rename DynInvokes to LFRicInvokes and move
to own module.

3) PR 2255 for 2237. The derived type intial values are not lost
anymore, and the "extends" or "abstract" keywords cause a
UnknownFortranType.

4) PR 1822 towards 1338. Adds support for the OMP tasking
directive and transformation.

5) PR 2346 for 2345. Make the integration tests use a parameterised
version of python, currently 3.11.4. Pin pylint to < 3.0

6) PR 2325 for 1947. Adds support for OMP/ACC Atomics and OMP Simd
directives.

7) PR 2355 for 2347. Adds testing to demonstrate that the new LFRic
metadata handling works for multi-precision kernels.

8) PR 2342 for 2340. Fix issues with VERIFY, ISHFTC and PRECISION
intrinsics and introduce a NEMO passthrough test.

9) PR 2350 for 2349. Update to HEAD of fparser master to get
fparser1 fix for parsing WHERE.

10) PR 2285 for 2284. Split LFRicRunTimeChecks from dynamo0p3.py.

11) PR 2313 towards 2197. LFRic PSyLayer uses array pointers instead
of derived types accessors in the kernel/builtin arguments.

12) PR 2321 for 2319. Refactors DynStencil into a dataclass named
LFRicArgStencil.

13) PR 2361 for 2360. Fix LFRic Loop.independent_iterations with domain
information and allow sequential directives on loops with dependencies.

14) PR 2365 for 2351. Fix ref2arrayrange allocated bug.

15) PR 2363 for 1254. Fortran FORMAT, ENTRY and IMPLICIT statements
produce CodeBlocks instead of losing the statements.

16) PR 2357 for 2353. Adds the ACC-loops NEMO transformation script
and includes its use in the integration testing.

17) PR 2380 and 2378 for 2369. Add PSyIR node.sibilings property.

18) PR 2375 for 2374. Bug fix for LFRic kernel-extraction driver
creation for netcdf.

19) PR 2385. Update tests to include python 3.12.

20) PR 2377 for 2368. Adds optional 'depth' argument to Node.walk().

21) PR 2362 for 2243 and 2312. Add support for Fortran save statements.

22) PR 2379 for 2370. Adds a Node.get_sibling_lists() method.

23) PR 2366 towards 342. Improve symbols and tighten-up ACCRoutineTrans
validation.

24) PR 2383 towards 2256. Adds support for 'DO CONCURRENT' in the
fparser2 frontend.

25) PR 2100 for 2091. Renames DynKern to LFRicKern and moves its
implementation to domain/lfric.

26) PR 2391 for 2390. Fix bug in generator.py error message.

27) PR 2364 towards 1941. Moves map of LFRic precisions to
config. file.

28) PR 2376 for 1525. Add lowering methods to all LFRic Built-ins.

29) PR 2406 for 2404. Fixes bug in setop_random kernel (was only
filling the lowest vertical level).

30) PR 2389 toward 928. Adds support for field_bcs_kernel when
parsing kernels using kernel_interface.py. This is required when
validating LFRic kernel arguments.

31) PR 2388 for 2323. Rename the array reduction 2code transformations
to use the 2loop postfix and improve their implementation.

32) PR 2400 for 1508. Add flag/config option to disable backend checks.

33) PR 2428 for 2427. Fixes bug in MaxVal2LoopTrans.

34) PR 2430 towards 2421. Ensures local symbol table is merged into
routine scope following an inline transformation. (Works around
2424.)

35) PR 2412 for 2411. Remove NemoKern and add the 'routine' profiling
option to the psyclone command.

36) PR 2401 for 2261. Split DynLoop out of dynamo0p3 and rename.

37) PR 2387 towards 1799. Add support for querying the datatype of
operations.

38) PR 2434 for 2433. Bug fix for process_nemo.py script to
aggregate -I arguments.

39) PR 2426 for 2254. Make LFRic PSyAD test harness use LFRic
logging API.

40) PR 2273 for 2272. Split LFRicFields into domain/lfric module.

41) PR 2393 for 2392. Split and rename DynKernMetadata into
into domain/lfric module (LFRicKernMetadata class).

42) PR 2240 for 2132. Update Integration test software stack.

43) PR 2454 for 2418. Fix OMPTaskTrans attempts to inline IntrinsicCalls.

44) PR 2459 for 2458. Fix broken documentation links.

45) PR 2472 for 2471. Update all copyright dates to include 2024 and
add utils/update_copyright.sh script to do this task.

46) PR 2443 for 2442. Fix bug for PSy-layer generation involving CMA
operators in the LFRic API.

47) PR 2481 for 1192. Unpin jsonschema version.

48) PR 2470 for 2468 and towards 237. Fixes Sphinx link-check errors
for links to anchors in User Guide and also updates the name of the
dl_esm_inf library and updates associated links (remove references to
puma).

49) PR 2420 towards 1786. Add and update Built-ins to support
mixed precision in the LFRic API: real to real, real to integer
and integer to real field types.

50) PR 2480 for 2479. Updates .gitignore for files generated by
examples.

51) PR 2486 for 2419. Renames Unknown[Fortran]Type to
Unsupported[Fortran]Type and DeferredType to UnresolvedType.

52) PR 2482 towards 2062. Adds a new 'origin_string()' method
to Node to return information on the origin (line number and file
name) of a PSyIR node.

53) PR 2439 for 2105. Use maxval2loop and atomics to parallelise
NEMO stpctl.f90.

54) PR 2493 for 2492. Fix bug in NemoOuterArrayRange2LoopTrans

55) PR 2465 towards 2004. Move same_range functionality to
ArrayMixin and other improvements.

56) PR 2372 towards 1960. Fix bugs on Fortran WHERE canonicalisation.

57) PR 2489 for 2488. Unify generic LoopFuseTrans and allow renaming
the second loop variable for certain cases.

58) PR 2423 for 2410. Split off and rename DynStencils to
LFRicStencils in the LFRic API.

59) PR 2490 towards 2447. Update PSyclone to use fparser 0.1.4 release.

60) PR 2501 for 2447. Create PSyclone release 2.5.0.

1) PR 1758 for 1741. Splits the PSyData read functionality into a
standalone module to remove dependence on infrastructure for
driver code.

2) PR 1766 FOR 1764. Fixes various syntax errors in some of the
Fortran test files.

3) PR 1759 for 1752. Updates to GOcean examples so that F90FLAGS
is used consistently and is also used when linking.

4) PR 1700. Various improvements to the example NEMO processing
scripts.

5) PR 1762 for 1743. Ensures declaration of precision variables
in PSyAD test harness.

6) PR 1774 for 1773. Fixes syntax error in test Fortran file.

7) PR 1620 for 1555. Create Algorithm Layer for a Kernel.

8) PR 1767 for 1739. Fixes dep-analysis bug whereby CMA operator
arguments to LFRic kernels were not given correct access value.

9) PR 1763 for 1717. Fixes invalid adjoint names for subroutine
and module.

10) PR 1776 for 1775. Fixes post_region_code_gen and improves
test fixtures.

11) PR 1784 towards 1779. Removes the use of config-provided bounds
from the NemoRange2Loop Transformation.

12) PR 1765 for 1724. Remove kernel use statements from
processed algorithm layer code.

13) PR 1785 for 1771. Refactor algorithm-creation functionality.

14) PR 1769 for 1721. Fixes bugs in use of sympy simplify() and
expand().

15) PR 1791 for 1780. Add setval_random built-in in LFRic API.

16) PR 1778 for 1751. Add ReplaceInductionVariableTrans transformation.

17) PR 1652 for 1645. Symbols representing LFRic BuiltIn Functors

18) PR 1795 for 1583. Bug fix for PSyAD for expressions involving
a unary minus.

19) PR 1809. A few fixes for code style issues.

20) PR 1803 for 1797. Adds support for logical variables to the
PSyData API.

21) PR 1804 for 637. Extends the dependence analysis to support
LFRic built-in kernels.

22) PR 1790 for 1787. Adds HoistLoopBoundsExprTrans transformation
which hoists complex loop-bound expressions out of loops.

23) PR 1811 for 1810. Separate LFRic LMA Operator infrastructure
into its own file.

24) PR 1808 for 1681. Extends PSyAD to reject functions.

25) PR 1633 towards 1631. New implementation of kernel meta-data
parser for GOcean API.

26) PR 1821 for 1557. Extends PSyAD to support LFRic mixed-
precision kernels.

27) PR 1551 towards 1338. Add OpenMP Clauses and its referenced
variables as part of the PSyIR tree.

28) PR 1838 for 1704. Update replace_with method to take into
account named arguments.

29) PR 1847. Make a subSignature a Signature and allow
Signature.to_language w/o arguments

30) PR 1831 for 1735. Changes the directory structure in the
test LFRic infrastructure to mimic that in the full LFRic
infrastructure. Alter the testing infrastructure to use the
Makefile to build the LFRic library.

31) PR 1814 towards 924. Add new PSyIR InlineTransformation.

32) PR 1819 for 1815. Forbid OMPTarget regions from containing
CodeBlock nodes.

33) PR 1830 for 1828. Fixes to enable explicit OpenACC Loop
parallelism with UM.

34) PR 1855 for 1840. Fix bug with dependency analysis when an
expression has the same array reference with and without indices.

35) PR 1827 for 1826. Adds support for SIR intrinsics.

36) PR 1839 for 1782. Adds a -api option to the PSyAD script.

37) PR 1844 towards 1823. Makes module inlining work in LFRic
when the same kernel is used multiple times.

38) PR 1825 for 1576. Adds the Reference2ArrayRangeTrans
transformation.

39) PR 1846. Fixes to various docstrings in transformations.py
and node.py.

40) PR 1845 for 1813. Adds a standalone PSyData extraction
library (that uses only Fortran IO).

41) PR 1836 for 1834. Adds support for explicit array-range
declarations to the dotproducttrans transformation.

42) PR 1871 for 1870. Fixes typo in link in User Guide.

43) PR 1875 for 1874. Remove pytest-pep257 dependency from setup.py

44) PR 1860 for 1538. Fixes search for config file when
`python setup.py install` used instead of pip and adds yaml config
file to tell RTD to use pip and Python 3.8 (for interop. with
SymPy).

45) PR 1768 for 1711. Add initial Sum2CodeTrans transformation.

46) PR 1885 for 1878. Update FortCL submodule to head of master to
fix invalid-boz compilation errors with newer versions of gfortran.

47) PR 1890 for 1889. Fix test to avoid temporary files being
left after pytest run.

48) PR 1850 towards 1799. Initial PSyIR node.datatype implementation
to query the resulting datatype of a PSyIR subtree.

49) PR 1869 for 1868. Extend PSyAD to make use of the
Reference2ArrayRangeTrans.

50) PR 1880 for 1865. Improves support for function calls in the
PSyIR by ensuring the associated RoutineSymbol has the correct
datatype.

51) PR 1894 for 1893. Fix bug in is_upper/lower_bound for UnknownTypes.

52) PR 1853 for 1829. Add OMP teams distribute parallel do directive
and refactor OMPLoopTrans.

53) PR 1900 for 1893. Fix bug in is_upper/lower_bound for non-typed
Symbols.

54) PR 1782 for 1496. Adds initial support for PSyAD test
harness generation for LFRic kernels. Some issues remain.

55) PR 1807 towards 1806. Adds PSyIR support for LFRic kernel
metadata.

56) PR 1906 for 1896. Update HoistLocalArrayTrans to avoid hoisting
parameter arrays and, unless explicitly requested, device parallel routines.

57) PR 1901 towards 1892 and 1898. Add support for storing and
querying the index of a metadata argument.

58) PR 1884 for 1882. Extends the inlining transformation to support
inlining of functions.

59) PR 1912 for 1851. Fixes pycodestyle (2.9) errors/warnings for
with Python 3.10.

60) PR 1899 towards 1823. Refactors KernelModuleInlineTrans so that
the in-lining happens at transformation time rather than code-
generation time.

61) PR 1852 for 1750. Adds an option to VariablesAccessInfo to
report/not report array arguments as first parameter to
lbound/ubound/size as read access. This fixes several issues with the
dependency tools.

62) PR 1867 for 1861. Significantly improves test coverage,
especially of the compilation-testing utilities.

63) PR 1924 for 1923. Fix issues building Developer and Reference
guides.

64) PR 1913 for 1848. Fix issues with case-sensitivity in the
SymbolTables.resolve_imports method.

65) PR 1917 for 1916. Extends InlineTrans to support calls to
routines in different Containers.

66) PR 1940. Replace Python 3.10 with 3.11 in GHA test suite.

67) PR 1943 for 1942. Fixes incorrect path in tutorial
Makefile setup.

68) PR 1905 for 1903. OpenMP schedule can be set to "none", which skips
the schedule clause in the OpenMP directive. This is the new default in
generic PSyIR (GOcean and LFRic still default to "static").

69) PR 1892 towards 1824. get_kernel_schedule supports resolving
interfaces (e.g. for the LFRic mixed precision kernels).

70) PR 1911 for 1909. Update fparser dependency.

71) PR 1908 for 1879. Completes the new meta-data parsing
functionality for the LFRic API.

72) PR 1918 for 1883. Updates kern_call_arg_list() (for LFRic) to
use PSyIR. (Step towards using PSyIR in LFRic PSy-layer generation
and required for PSyKE driver generation.)

73) PR 1898 towards 1708. Extends PSyAD LFRic harness support to
kernels with field arguments that contain geometry information.

74) PR 1982 for 1981. Updates the GHA configuration to use
Python 3.7 instead of 3.6.

75) PR 1956 for 1955. Updates the tests/.pylintrc file to remove
unsupported options.

76) PR 1888 for 1783. Adds NEMO OpenMP transformation scripts
to the examples.

77) PR 1933 for 1902. Adds run-time checks when hoisting
local work arrays.

78) PR 1963 towards 1883. More work to improving the use of PSyIR
in LFRic (as needed for PSyKE driver creation).

79) PR 1964 for 1961. Adds lower_to_language_level to DynLoop to
ensure loop variable names preserved in PSyKE driver creation.

80) PR 1952 for 310. Adds support for ACCEnterData and ACCUpdate
directives in the NEMO API.

81) PR 1925 for 1832. Add a 'force' option to the ParallelLoopTrans.

82) PR 1988 for 1507. Drop 'six' dependency and fix many pylint issues.

83) PR 1968 towards 1823. Fixes additional issues with module-
inlining in LFRic. (Interfaces, imported global variables and some
validation problems.)

84) PR 1996. Addendum to 1952 to cover missed lines.

85) PR 1994 for 1986. Fix issues with LFRic OMP support by skipping
dependence analysis for coloured loops.

86) PR 1997 for 888. Updates the handling of the '-v'
command-line flag for requesting version information. The
psyclone script will now quit after outputting the version
information.

87) PR 1970 for 1966. Add an overwrite_datatype option to
StructureReferences for when an API knows what type a DeferedType is.

88) PR 2003. Pins the Sphinx version to < 6.1 to avoid a bug in
the link-checking functionality. Also corrects various links to
the VirtualBox site.

89) PR 1972 for 1967. Ensures that proper Signatures are created
for structure accesses that appear in LFRic kernel arguments.

90) PR 1907 for 1366. Introduces the IntrinsicCall node and the
IntrinsicSymbol symbol. Adds ALLOCATE, DEALLOCATE and RANDOM_NUMBER
intrinsics.

91) PR 2007 for 2000. Removes pinning of Sphinx version in setup.py
now that the linkcheck bug has been fixed in a new release.

92) PR 1976 for 1974. Fixes issues with literal constants and
array accesses in VariableAccessInfo for the LFRic API.

93) PR 2015 for 2012. Fixes crash in access-information
collection when there is an LFRic 'domain' loop.

94) PR 2014. Extends psyir_from_source() so that the caller
can specify if the Fortran is in fixed format.

95) PR 1993 towards 1953. Extends the LFRicKernelMetadata
class to support stencil specifications.

96) PR 2020 for 2019. Fix inconsistencies in handling of precision
symbols

97) PR 2023 for 1975. Extends DynReferenceElement to ensure that
it adds related kernel arguments to KernCallArgList as PSyIR.

98) PR 2030 for 1529. Update eg19 Makefile so that compilation
works.

99) PR 2029 for 1567. Fix visibility issues with imported symbols.

100) PR 2024 for 1984. Fixes the dependence analysis for the case
where a single element of an array of fields is passed as an
argument to an LFRic built-in.

101) PR 1980 for 1978. Updated LFRic Infrastructure files in
PSyclone repository and PSyData libraries to support 32- and
64-bit mixed precision.

102) PR 2034 for 1864: Add support for adjoint test-harness
generation for kernels with operator arguments.

103) PR 2038 for 1998. Adds support for r_tran_operator_type to
LFRic (dynamo0.3).

104) PR 2036 for 2033. Splits core/access_info into its constiutent
classes and moves utility functions out of the DependencyTools
module.

105) PR 2056 for 2055. Extends the Reference2ArrayRange
transformation such that it rejects any References that are args to
the DEALLOCATE intrinsic.

106) PR 2047 for 2046. Adds a 'return' statement to the
lower_to_language_level() methods.

107) PR 2032 for 92. Forbid include statements (which should have been
processed by the preprocessor or fparser before PSyclone).

108) PR 1973 for 1904. Fix inlining issues with complex access
expressions (e.g. array offsets and partial derived types accesses).

109) PR 2044 for 1295. Changes LFRic psyir to avoid use of exec
and ensures that LFRicConstants is not created *before* the config.
file has been read.

110) PR 2066 for 1587. Introduces new DebugWriter visitor for
fast generation of Fortran-like content in error messages.

111) PR 1914 for 1891. Improves error handling when there are
undeclared arguments.

112) PR 2067 towards 1618. Fixes bugs relating to gh_sum for
scalars and use of any_space_* spaces in the new metadata
handling. Also corrects a (tested) docstring so that it sets
up a Config object first.

113) PR 2063. Improve search for optimisation script and handling
of any errors when it is imported.

114) PR 2071 for 2042. Adds support for the Fortran 'parameter'
statement to the fparser2 frontend.

115) PR 2068 for 352 and 1422. Adds a 'DoWhile' node to represent
Fortran DO WHILE and unbounded DO loops.

116) PR 2072 tidying of IfBlock following 2068.

117) PR 2061 towards 598. Improves the use of dependence analysis
in the OMP transformations to infer which variables are firstprivate
in some cases.

118) PR 2059 for 2057. Adds kernel-extraction support for the
NEMO API.

119) PR 2073. Fixes typos across the repo.

120) PR 2025 for 1483. Adds driver generation for LFRic kernel
extraction (PSyKE).

121) PR 2048 towards 1772. Implements a new MetadataToArgumentsRules
class using the new LFRic metadata functionality.

122) PR 2085 for 840. Add support for minval, maxval and sum Fortran
intrinsics.

123) PR 2077 for 2075. Specify LFRic built-in metadata descriptions
within LFRic built-in classes.

124) PR 2104 towards 1618. Fix invalid use of subroutine instead of
function in an LFRic example algorithm.

125) PR 2098 towards 2091. Split off and rename DynKernCallFactory
to LFRicKernCallFactory.

126) PR 2103 towards 1618. Support Fortran interfaces whose symbols
are already declared.

127) PR 2099. Update of tutorials.

128) PR 1937 for 1935. Adds all LFRic TL and adjoint kernels under
examples.

129) PR 2112 towards 1618. Splits LFRic eg11 source file into
driver and algorithm.

130) PR 2118 for 2117. Ensure build flags passed to LFRic
infrastructure

131) PR 2026 for 1991. Improves the support for building a
standalone driver for an extracted kernel. All required modules are
now inlined into the driver source file.

132) PR 2086 for 2013. Adds support for logical scalar arguments
in PSyAD test harness generation.

133) PR 2060 towards 1618. Adds an optional code path for LFRic
Algorithm-layer handling using the new metadata processing
functionality.

134) PR 2123. Updates GOcean project link in UG.

135) PR 2121 for 2109. Updates PSyclone to fparser 0.1.1 release.

136) PR 2128 towards 1618. Bug fix in LFRicAlgInvoke2PSyCallTrans
for kernels requiring more than 1 quadrature object.

137) PR 967 towards 2132. Add GH workflows for self-hosted runner.

138) PR 2084 for 1801. Improve handling of assume-shape arrays with
specified bounds.

139) PR 2129 towards 1618. Bug fix for -ve Literal args to kernels
in PSyIR handling of LFRic Alg Layer.

140) PR 2133 for 2126. Add RTD YAML config files to allow the
documentation (user guide, developer guide etc) to be managed
separately and to allow software environments other than the
default to be specified.

141) PR 2092 for 2008. Refactors Symbol interfaces and adds support
for Static/SAVE variables.

142) PR 2089 for 2005. Add a SymbolTable merge method and improve symbol
renaming capabilities.

143) PR 2141 towards 1618. Add support for Symbols imported from
Containers with renaming.

144) PR 2136 for 2134. Fix compilation tests bug with assumed shape arrays.

145) PR 2115 for 2114. Fortran allocate with type-spec becomes a CodeBlock.

146) PR 2130 towards 1161. Adds support for HUGE and TINY intrinsics.

147) PR 2095 towards 2091. Split off and rename DynInvoke to LFRicInvoke.

148) PR 2146 for 2145. Skip CI link checks for mybinder as they
occasionally fail.

149) PR 2135 towards 1618. Adds (limited) PSyIR support for Fortran
interfaces without a name.

150) PR 2152 for 2149. Adds checks in Literal constructor that
supplied string is a valid format.

151) PR 2143 for 2043. Adds basic PSyIR support for Fortran COMMON
blocks.

152) PR 2150 towards 2132. Improve self-hosted CI workflow.

153) PR 2090 for 1545. Split off and rename DynCollection to
LFRicCollection.

154) PR 2140 for 2139. Encapsulates the result of the dependency-
analysis' get_in_out_parameters() in a single class.

155) PR 2160 for 2159. Adds support for LFRic kernel arguments with two
new precision names (r_bl and r_phys).

156) PR 2170 for 2169. Correct import of fparser2
Declaration_Construct.

157) PR 2131 towards 1618. Improves the error handling when we find
a Routine with the same name as an LFRic Builtin.

158) PR 2147 for 2119. Add elemental and pure routine attributes.

159) PR 2181 for 2175. Bug fixes for processing of Fortran
declarations and integer literals.

160) PR 2107 for 2106. Improvements to NEMO processing scripts and
inclusion in Integration Testing.

161) PR 2198 for 2194. Fixes handling of a function where the
precision of the result is only defined within the function.

162) PR 2187 towards 1618. Remove builtin use statements when
lowering.

163) PR 2191 for 2185. Fix element order used in PSyAD test
harness.

164) PR 2208 towards 2205. Ensures that functions or subroutines
that CONTAIN other functions/subroutines are put into a CodeBlock.

165) PR 2124 fir 2101. Refactors OpenMP inference of private/first-
private variables and those requiring synchronisation.

166) PR 2210 for 2206. Ensure symbol renaming included when deep-
copying a symbol table.

167) PR 2209 for 2204. Add support for EQV and NEQV and fix select
case bug with logical comparisons.

168) PR 2211 for 2183. Change PSyAD test-harness generation to use
the same variable names as the TL kernel being tested.

169) PR 2212 for 2203. Fix bug in PSyIR fparser2 frontend when
DO WHILE contains normal DO loops.

170) PR 2220 for 2219. Adds 'shared_with' argument to the
node.ancestor() method.

171) PR 2174 for 2171. Add support for obtaining the partial datatype
of an UnknownFortranType.

172) PR 2163 for 1537. Support array-slicing notation in SymPy
comparisons.

173) PR 2221 for 2214. Fix names of invokes containing a single
kernel in the PSyIR of the LFRic Alg layer.

174) PR 2225 for 2224. Fix erroneous CI link check error by
omitting test for the particular link.

175) PR 2172 for 1833. Fixes the LFRic tutorials so that they
build correctly.

176) PR 2227 for 2226. Adds new Node.path_from(ancestor) method.

177) PR 2158 for 81. Ensures all example/test Fortran code for
LFRic follows the LFRic naming convention.

178) PR 2218 towards 2132. Adds LFRic integration tests and
new, associated optimisation scripts. Includes bug fixes for
matmul inlining transformation.

179) PR 2230 for 2228. Improve reporting of errors due to kernel
functors not explicitly included in algorithm use statements.

180) PR 2207 for 1419. Split the DataSymbol constant_value attribute
into is_constant (bool) and initial_value (PSyIR Node). This allows
parsing Fortran declarations with initial_value that are not constant.

181) PR 2231 for 2213. The Fortran frontend and backend now also
consider that UnresolvedInterface symbols can come from the body of
a Fortran Interface.

182) PR 2240 for 2234. Fix WhileLoop issue in the NEMO OpenACC kernels
script.

183) PR 2182 for 2179. Fix LFRic eg14 nvfortran compilation and add
nvfortran examples and tutorials steps in the Integration tests.

184) PR 2250 for 2248 and 1575. Fixes bug in line-length limiter
to prevent it breaking a line before the first non-whitepsace
character.

185) PR 2262 towards 446. Implement reference_access for Call nodes.

186) PR 2184 for 2166. Adds Sympy support for user-defined types.

187) PR 2270 for 1575. Fixes the line-length limiter for code that
has an indent greater than the max. line length.

188) PR 2259 for 1932. Adds support for the 'gang' and 'vector'
clauses on OpenACC Loop directives.

189) PR 2276 for 2274. Small fixes for various complaints
produced by latest version of pycodestyle.

190) PR 2291 for 2290. Bug fix to KernelModuleInlineTrans -
ensures that the new RoutineSymbol added to the Container is given
a DefaultModuleInterface.

191) PR 2238 for 2234. Adds support for a generic interface to
perform variable comparison when the datatype is unknown. (Required
for canonicalising SELECT CASE constructs.)

192) PR 2292 for 2288. Workaround for Sphinx-doctest bug by
building html dev guide before running the doctests.

193) PR 2260 for 2245. Splits LFRicLoopBounds class from
dynamo0.3.py.

194 PR 2241 for 2215. Adds support for Fortran names being the
same as Python keywords when using sympy within PSyclone, e.g. in
comparisons between expressions.

195) PR 2295 for 2294. Extends the PSyData extraction library
to support character variables

196) PR 2157 for 1396. Add tree-update mechanism and new ACCClause
nodes for data movement.

197) PR 2281 for 2258. Adds a PSyData wrapper for the TAU profiler.

198) PR 2283 for 2282 and 2286. Adds a get_ubound_expression
method to ArrayMixin (analagous to get_lbound_expression).

199) PR 2293 for 2301. Add 'is_independent' property/query to Loop.

200) PR 2309 for 1558. Add support for out-of-order parameter statements.

201) PR 2148 towards 2105. Adds {Min,Max}Val2Code transformations.

202) PR 2298 for 1987. Change all intrinsic Operations to IntrinsicCalls.

203) PR 2320 for 2242. Pin Sphinx dependency to <7 to fix RTD building step.

204) PR 2264 for 2263. Split LFRicScalarArgs from src/psyclone/dynamo0p3.py.

205) PR 2328 for 2316. Update PSyclone to use 0.1.3 of fparser.

206) PR 2329 towards 2204 and closes 2315. Bug fix to fparser2
frontend to ensure that a PROGRAM with a CONTAINS is captured as
a CodeBlock.

207) PR 2327 towards 2132. Updates the LFRic integration tests
to use a Spack environment and the latest HEAD of trunk of LFRic.
Also extends the integration tests to upload performance numbers
to a GitHub gist.

208) PR 2154 for 95 and 994. Enforce valid Fortran names for
invoke names in the LFRic API.

209) PR 2332 for 2318. Small bug fix to the LFRic extraction
driver creation. eg17/full_example_extract now builds and runs OK.

210) PR 2287 for 2253. Allow for GH_WRITE access to continuous
field arguments to inter-grid kernels in the LFRic API.

211) PR 2299 for 2297. Add option to get original symbol name
(for an imported symbol) in VariablesAccessInfo.

212) PR 2233 for 1772. Correct kernel metadata for LFRic adjoint code.

213) PR 2334. Fix missing backtick in docstrings.

214) PR 2306 for 2305. Rename DynHaloExchange to LFRicHaloExchange.

1) PR 1747 for 1720. Adds support for If blocks to PSyAD.

2) PR 1669 for 450. Remove set_dirty/clean from ACC regions

3) PR 1745 towards 1731. Split PSyLoop class from Loop node.

4) PR 1761 for 1760. Create release 2.3.1

1) PR 1672. Fixes BOZ literal standard incompatibility in the
nvidia profiling wrapper code.

2) PR 1670 for 1650. Fixes various inconsistencies in the symbol
table implementation.

3) PR 1674 for 1644. Fixes bug in matmul transformation.

4) PR 1673 for 1671. Fixes an error in the Makefile for the
'time evolution' LFRic tutorial.

5) PR 1628 for 1491. Extends PSyAD pre-processing phase to
expand any expressions involving active variables.

6) PR 1666 towards 1618. Modified prototype PSyIR-based
algorithm generation to use a transformation to convert from
invoke's to processed algorithm code, rather than it being done as
part of lowering in the backend. This allows algorithm code with
invoke's to be output by the backend.

7) PR 1613 for 1238 and 1528. Improves the view() method so that
it returns a str rather than printing to stdout. Also allows colour
to be disabled.

8) PR 1656 for 1649 and 1645. Add equality operator to all core
PSyIR nodes in order to compare nodes by value.

9) PR 1680. Refactors some of the code in various ACC directives to
minimise duplication and switch to f-strings.

10) PR 1639 for 1630. Add support for named arguments in Call and
Operation PSyIR nodes, including Fortran front-end and backend support.

11) PR 1682 for 1632. Extend the LFRic API to support transport
field type. Required for mixed-precision support.

12) PR 1678 for 1667. Work towards getting the LFRic OpenACC
example (eg14) to compile.

13) PR 1676 for 1644 Extend matmul2code transformation to
support matrix matrix multiplication. Previously it was limited to
matrix vector.

14) PR 1697 for 1695. Small update to LFRic stub infrastructure to
fix compilation failure when building tutorial code.

15) PR 1699. Fix failing dynamopsy test by specifying dm=true
explicitly

16) PR 1684 for 1683. Adds support for MIN and MAX LFRic Built-ins.

17) PR 1702 for 1695. Correction to LFRic infrastructure ('emdi') to
bring up-to-date with current LFRic usage.

18) PR 1705. Corrections for the NEMO tutorial.

19) PR 1692 for 1688. Prevents scoping regions from sharing symbol
tables. Adds attach() and detach() methods to SymbolTable for
managing this connection.

20) PR 1703 for 1689. Fix stencil depth bug in LFRic halo exchange
when a discontinuous writer follows a discontinuous stencil reader.

21) PR 1608 towards 1542. Allow GH_WRITE access for fields on
continuous function spaces in LFRic API.

22) PR 1722. Changes all PSyIR code over to using f-strings.

23) PR 1725. Allows parsing an empty Fortran file.

24) PR 1716 for 1713. Fix bug in matmul transformation.

25) PR 1693 for 1661. Improve dependency analysis tools.

26) PR 1347 for 1730. The Fortran backend now generates declarations with
dependencies in the appropriate order.

27) PR 1729. Minor fixes for MarkDown link checker and path to
test file.

28) PR 1733 for 1707. Update PSyclone master to the latest version of
fparser to enable running of PSyclone tests.

29) PR 1679. Add a limit parameter to the PSyIR node ancestor method.

30) PR 1749 for 1748. Updates version of fparser specified in setup.py
to 0.0.15.

31) PR 1740 for 1738. Update the operator implementation in the
cut-down LFRic infrastructure and change the USE statements generated
for CMA operators.

1) PR 1439 for 1074. Adds a GOcean example for the use of the NaN-
checking functionality (in PSyData).

2) PR 1463 for 1461. VALID_LOOP_TYPES constant made consistent
across APIs to permit check on loop type in dependency tools.

3) PR 1473 for 1423. Adds the ChunkLoopTrans PSyIR transformation.

4) PR 1475 for 595. Remove memento and transformation return values.

5) PR 1470 for 1459. Refactor OMPLoopTrans to support OMPLoop
directive and add OMPTargetTrans.

6) PR 1452 for 1451. Add doctest for the Dev Guide to GitHub Actions
and tidy the examples so that they work.

7) PR 1503 for 1502. Fix incorrect path in tutorial README.

8) PR 1489 for 1488. Configure MD link checker to skip links to MO wiki.

9) PR 1501 for 1484. Remove Python2 validation, update
documentation, start removing Python2-specific code and start
using any pylint-suggested Python3-specific code constructs.

10) PR 1476 for 1456. Fix precision problems in the PSyAD harness
code generation and add harness documentation.

11) PR 1482 for 1481. Renames symbol_from_tag->find_or_create_tag
and tidies its use.

12) PR 1521 for 1193. Update Python 3.5 to 3.6 in the GitHubActions CI.

13) PR 1512 for 1511 and 1516. Fix silent compilation test failures,
and make sure all files are compiled in tmpdir.

14) PR 1531. Fixes incorrect imports of OMPTaskwaitTrans in examples
in class docstrings.

15) PR 1498 for 533. Adds the use of SymPy for comparing expressions
for equality. Removes math_equal() and
ArrayRange2LoopTrans.string_compare() methods.

16) PR 1492 for 1457. Adds support for the transformation of Loops
when taking the adjoint of a code.

17) PR 1520 towards 1504. The Fortran frontend marks class type
definitions as UnknownFortranType in the PSyIR.

18) PR 1522 for 1519. Make the LoopSwapTransformation generic and
move it to the psyir.transformations module.

19) PR 1539 for 1524. Re-enable a previously deleted compilation test
due to a compilation error now fixed.

20) PR 1535 for 1534. Adds testing of Python 3.10 in GHA and
updates PSyclone to work with 3.10. Also makes GHA build examples
with 2 threads (as 2 cores are available) and runs tests with as
many threads as there are cores available (again 2 at this time).

21) PR 1510 for 1499. Add SymbolTable method to resolve the properties
of imported symbols.

22) PR 1485 for 1429. Create correct variable intents for
generated adjoint kernel code.

23) PR 1228 towards 753. The GOcean API now uses PSyIR for the Algorithm
layer.

24) PR 1526 for 1430. Fixes and improves support for array
ranges in psyad.

25) PR 1500 for 1487. Improvements to NEMO arrayrange2loop
transformation.

26) PR 1541 for 1513. Adds a 2D loop-tiling transformation.

27) PR 1533 for 1523. Adds SymPy symbols for Fortran names
in the tools.symbolic_maths module.

28) PR 1579 for 1550. Removes duplicated use statements produced
by the Fortran backend.

29) PR 1518 for 1506. Bugfix for WHEREs involving derived types.

30) PR 1578 for 1517. Uses dependency analysis to check for
loop-carried dependencies when attempting to parallelise a loop.
Also improves validation checks at code-generation time to ensure
that any OMP Loop directive is within a Target or Parallel region.

31) PR 1598 towards 282. Removes reference to the Dynamo 0.1 API
in the documentation.

32) PR 1462 for 451. Make LFRic loop bounds constant within the
PSy-layer with any function calls or structure accesses looking up
bounds information being computed separately beforehand. This can
help compilers correctly compile the code, particularly when there
are directives and may also help compilers produce more efficient
code.

33) PR 1592 for 1585. Add a PSyIR clause node and start implementing
clauses for the OpenMP directives.

34) PR 1599 for 282. Removes Dynamo 0.1 API code and tests (removes
the API completely).

35) PR 1556 for 1490. Adds a dotproduct2code transformation and
extends PSyAD to make use of it.

36) PR 1597 towards 753. Fixes naming bugs in GOcean Algorithm
PSyIR.

37) PR 1565 for 1505. Fix bug with UnknownFortranTypes inside other
fparser frontend declarations.

38) PR 1603 for 1566. Fparser reader parses derived types with
contains statements as UnknownFortranType.

39) PR 1602 towards 753. A new PSyclone script entry point (the
trans_alg function) can be used to transform the Alg-layer (currently
just for the gocean API).

40) PR 1601 for 1600. Removes the GOcean 0.1 API.

41) PR 1410 for 1398. Add Sphinx docs link checking in the CI.

42) PR 1586 for 1559. Adds support for SoA and AoSoA in the
Range2Loop transformation.

43) PR 1574 towards 1555. Replaces gen_kernel_stub script with
psyclone-kern. This more generic script can be extended to other
kernel modification options in the future (in particular
generating an algorithm layer from a kernel).

44) PR 1607 for 1559. Transform MATRIX_MULTIPLY to equivalent
code before creating adjoint.

45) PR 1527 towards 1525. Adds lower_to_language_level methods
to all LFRic builtins with the exception of those involving
reductions or type casting.

50) PR 1616 for 1615. Fixes list of files to profile in NEMO
kernels script plus some other typos.

51) PR 1621 for 1581. Extends PSyAD to make use of the
ArrayRange2Loop transformation to remove any array ranges before
constructing the adjoint.

52) PR 1622 towards 1618. Fixes code generation for PSyIR of
Algorithm Layer by removing `invoke` symbol during lowering.

53) PR 1609 for 1584, 1041 and 490. Adds transformation to
add OpenMP target directive to routines and updates existing
one for OpenACC to use PSyIR instead of parse tree.

54) PR 1625 for 1606. Fixes bug in PSyAD by ensuring that all
local, active variables are initialised to zero.

55) PR 1349 for 1277. Extend the LFRic API to use algorithm
precision/types when generating the PSy layer. Required for
mixed-precision support.

56) PR 1624 towards 1618. Bug fix for LFRic algorithm PSyIR module
and subroutine names.

57) PR 1637 for 1634. Add HoistLocalArraysTrans transformation.

58) PR 1553 for 1134. Completes the movement of OpenCL-generation
into its own transformation.

59) PR 1657 for 1640. Changes ready for new 2.2 release.