library/*.m:
Delete Erlang foreign code and foreign types.
Delete documentation specific to Erlang targets.
library/deconstruct.m:
Add pragma no_determinism_warning to allow functor_number_cc/3
to compile for now.
library/Mercury.options:
Delete workaround only needed when targetting Erlang.
browser/listing.m:
mdbcomp/rtti_access.m:
Delete Erlang foreign code and foreign types.
The recent change to enable --warn-dead-predicates in the library directory
broke standard library compilation due to various predicates being dead in some
grades.
library/io.m:
Add a default Mercury clause for compare_file_id_2/3; having a Java one
that throws a (Java) exception results in the Java compiler complaining
about unreachable code when compare_file_id_2/3 is inlined in its caller.
Add consider_used pragmas where necessary.
library/erlang_rtti_implementation.m:
library/rtti_implementation.m:
library/time.m:
library/version_array.m:
Add consider_used pragmas where necessary.
Delete some procedures that have been marked as obsolete since before the 14.01
release.
library/hash_table.m:
library/version_array.m:
As above.
NEWS:
Announce the deletions.
tests/hard_coded/hash_table_delete.m:
Replace a call to one of the deleted functions.
Discussion of these changes can be found on the Mercury developers
mailing list archives from June 2018.
COPYING.LIB:
Add a special linking exception to the LGPL.
*:
Update references to COPYING.LIB.
Clean up some minor errors that have accumulated in copyright
messages.
library/bimap.m:
library/bitmap.m:
library/calendar.m:
library/char.m:
library/cord.m:
library/deconstruct.m:
library/diet.m:
library/dir.m:
library/eqvclass.m:
library/map.m:
library/pprint.m:
library/pqueue.m:
library/stream.string_writer.m:
library/term_conversion.m:
library/time.m:
library/type_desc.m:
library/version_array.m:
library/version_array2d.m:
library/version_bitmap.m:
library/version_hash_table.m:
Fix inconsistencies between (a) the order in which functions and predicates
are declared, and (b) the order in which they are defined.
In most of these modules, either the order of the declarations
or the order of the definitions made sense, and I changed the other
to match. In a few modules, neither made sense, so I changed *both*
to an order that *does* make sense (i.e. it has related predicates
together).
In some places, put dividers between groups of related
functions/predicates, to make the groups themselves more visible.
In some places, fix comments or programming style, give some auxiliary
(non-exported) predicates better names, or delete some unneeded module
qualifications.
In some places, have the function form of a procedure forward
the work to the predicate form, instead of vice versa, where this is
more natural (usually because it allows the use of state variables).
However, this is the only kind of "algorithmic" change in this diff;
the rest is just moving code around.
library/version_array.m:
Add the above function.
Minor fixes to some comments.
tests/hard_coded/version_array_test.{m,exp}:
Extend this test to cover from_reverse_list/1 and
from_list/1.
NEWS:
Announce the addition.
library/version_array.m:
The macro MR_ALLOC_ID is only defined for foreign_proc pragmas *not* for
foreign_code pragmas. Commit ab44bba introduced several references to
MR_ALLOC_ID inside functions defined foreign_code pragmas. Fix this by
passing the appropriate alloc id down from the foreign_proc pragmas
that call the affected functions.
The old version_array rewind code used linear stack space in order to
perform it's updates in the right order (newest to oldest) by following the
structure's next pointers (which are a oldest to newest list). I previously
introduced week prev pointers so that walking over this structure newest to
oldest could be done with constant stack space. However that is less
efficient than the method suggested by Peter Wang.
Peter suggested using a bitmap and traversing oldest-to-newest, marking
each update in the bitmap and checking the bitmap before making any update.
Thus preserving older values over newer ones (which is good, this code
_rewinds_ updates). This patch implements Peter's suggestion and removes
the prev pointers from the structure for C and Java backends.
Thanks to Peter Wang for giving me a hand with C#.
library/version_array.m:
As above.
runtime/mercury_bitmap.h:
Add some macros for initialising bitmaps and testing, setting and clearing
their bits.
library/bitmap.m:
java/runtime/MercuryBitmap.java:
Move the Java MercuryBitmap class into the runtime library. This makes
it easier for other standard library modules to use this Java class.
library/bitmap.m:
runtime/mercury_dotnet.cs.in:
Move C# MercuryBitmap class into runtime/mercury_dotnet.cs
library/bitmap.m:
Add extra methods to the C# MercuryBitmap class.
tests/hard_coded/version_array_test.exp:
tests/hard_coded/version_array_test.m:
Ensure that the test verifies that rolling back updates to a version
array rolls back changes in the correct order: If two updates modify the
same cell, then the older one should be visible in the result.
Use longer arrays so that the bitmap used in the rollback code is more
than one byte in length.
Although rewinding version arrays should be rare it is better if this code
uses constant stack space to avoid crashes. Currently the list of updates
made in a version array is kept in a singly linked list. This list needs to
be walked backwards to unwind updates, such as when updating an old version
of an array (to fork into two separate arrays). The stack is used to
perform this backwards work and can overflow for long histories.
This patch makes these lists doubly-linked so that they can be traversed in
either direction. The back pointers are implemented using weak pointers in
all backends. This avoids unnecessary memory retention when a programmer
only maintains a reference to the lastest version of the array, which is the
common case.
library/version_array.m:
As above; I developed this algorithm in the C implementation first and
then replicated the changes in the Java and C# implementations.
tests/hard_coded/version_array_test.m:
tests/hard_coded/version_array_test.exp:
Extend the test case to exercise implicitly unwinding a version array by
updating an old version of an array. Note that the implicit and
explicit unwind codepaths are different as they are out-of-place and
in-place respectively.
library/array.m:
library/version_array.m:
Add the above predicates.
NEWS:
Announce the new predicates.
tests/hard_coded/Mmakefile:
tests/hard_coded/array_all_tf.{m,exp}:
Test the new predicates.
tests/hard_coded/version_array_test.{m,exp}:
Extend this test case to cover the new predicates.
library/array.m:
library/array2d.m:
library/bitmap.m:
library/store.m:
library/thread.semaphore.m:
library/version_array2d.m:
library/version_bitmap.m:
library/version_hash_table.m:
library/version_store.m:
Delete predicates that were deprecated in Mercury 13.05 and before.
library/version_array.m
Delete the deprecated function new/2.
Deprecate unsafe_new/2 and unsafe_init/2 to replace it.
(We had overlooked this previously.)
library/string.m:
Delete the deprecated function set_char_char/3.
(We will leave the other deprecated procedures in this module
for at least another release.)
library/svlist.m:
library/svpqueue.m:
library/svstack.m:
Delete these modules: they were only ever needed as a transitional
mechanism.
library/library.m:
Conform to the above changes.
doc/Mmakefile:
Unrelated change: delete references to files that have been
deleted since we moved to git.
tests/hard_coded/*/*.m
tests/tabling/*.m:
Update test cases where they made use of predicates that have
now been deleted from the standard library.
version_array.m did not document the cost of modifying an old part of the
array. This change adds a simple description.
library/version_array.m:
As above.
Estimated 3ours taken: 4
Branches: main
compiler/prog_data.m:
Make vartypes an abstract data type, in preparation for exploring
better representations for it.
compiler/mode_util.m:
Provide two different versions of a predicate. The generic version
continues to use map lookups. The other version knows it works on
prog_vars, so it can use the abstract operations on them provided
by prog_data.m.
compiler/accumulator.m:
compiler/add_class.m:
compiler/add_heap_ops.m:
compiler/add_pragma.m:
compiler/add_pred.m:
compiler/add_trail_ops.m:
compiler/arg_info.m:
compiler/builtin_lib_types.m:
compiler/bytecode_gen.m:
compiler/call_gen.m:
compiler/clause_to_proc.m:
compiler/closure_analysis.m:
compiler/code_info.m:
compiler/common.m:
compiler/complexity.m:
compiler/const_prop.m:
compiler/constraint.m:
compiler/continuation_info.m:
compiler/cse_detection.m:
compiler/ctgc.datastruct.m:
compiler/ctgc.util.m:
compiler/deep_profiling.m:
compiler/deforest.m:
compiler/dep_par_conj.m:
compiler/det_analysis.m:
compiler/det_report.m:
compiler/det_util.m:
compiler/disj_gen.m:
compiler/equiv_type_hlds.m:
compiler/erl_call_gen.m:
compiler/erl_code_gen.m:
compiler/erl_code_util.m:
compiler/exception_analysis.m:
compiler/float_regs.m:
compiler/follow_vars.m:
compiler/format_call.m:
compiler/goal_path.m:
compiler/goal_util.m:
compiler/hhf.m:
compiler/higher_order.m:
compiler/hlds_clauses.m:
compiler/hlds_goal.m:
compiler/hlds_out_goal.m:
compiler/hlds_out_pred.m:
compiler/hlds_pred.m:
compiler/hlds_rtti.m:
compiler/inlining.m:
compiler/instmap.m:
compiler/intermod.m:
compiler/interval.m:
compiler/lambda.m:
compiler/lco.m:
compiler/live_vars.m:
compiler/liveness.m:
compiler/lookup_switch.m:
compiler/mercury_to_mercury.m:
compiler/ml_accurate_gc.m:
compiler/ml_closure_gen.m:
compiler/ml_code_gen.m:
compiler/ml_code_util.m:
compiler/ml_disj_gen.m:
compiler/ml_lookup_switch.m:
compiler/ml_proc_gen.m:
compiler/ml_unify_gen.m:
compiler/mode_info.m:
compiler/modecheck_call.m:
compiler/modecheck_conj.m:
compiler/modecheck_goal.m:
compiler/modecheck_unify.m:
compiler/modecheck_util.m:
compiler/modes.m:
compiler/par_loop_control.m:
compiler/pd_info.m:
compiler/pd_util.m:
compiler/polymorphism.m:
compiler/post_typecheck.m:
compiler/prog_type_subst.m:
compiler/prop_mode_constraints.m:
compiler/purity.m:
compiler/qual_info.m:
compiler/rbmm.points_to_info.m:
compiler/rbmm.region_liveness_info.m:
compiler/rbmm.region_transformation.m:
compiler/saved_vars.m:
compiler/simplify.m:
compiler/size_prof.m:
compiler/ssdebug.m:
compiler/stack_alloc.m:
compiler/stack_opt.m:
compiler/store_alloc.m:
compiler/structure_reuse.analysis.m:
compiler/structure_reuse.direct.choose_reuse.m:
compiler/structure_reuse.direct.detect_garbage.m:
compiler/structure_reuse.indirect.m:
compiler/structure_sharing.analysis.m:
compiler/structure_sharing.domain.m:
compiler/switch_detection.m:
compiler/table_gen.m:
compiler/term_constr_build.m:
compiler/term_constr_util.m:
compiler/term_traversal.m:
compiler/term_util.m:
compiler/trace_gen.m:
compiler/trailing_analysis.m:
compiler/try_expand.m:
compiler/tupling.m:
compiler/type_constraints.m:
compiler/type_util.m:
compiler/typecheck.m:
compiler/typecheck_errors.m:
compiler/typecheck_info.m:
compiler/unify_gen.m:
compiler/unify_proc.m:
compiler/unique_modes.m:
compiler/untupling.m:
compiler/unused_args.m:
compiler/var_locn.m:
Conform to the above.
compiler/prog_type.m:
compiler/rbmm.points_to_graph.m:
Conform to the above.
Move some comments where they belong.
compiler/stm_expand.m:
Conform to the above.
Do not export a predicate that is not used outside this module.
Disable some debugging output unless it is asked for.
Remove unnecessary prefixes on variable names.
library/version_array.m:
Instead writing code for field access lookalike functions and defining
lookup, set etc in terms of them, write code for lookup, set etc,
and define the field access lookalike functions in terms of them.
Change argument orders of some internal predicates to be
more state variable friendly.
Fix typos in comments.
tests/hard_coded/version_array_test.exp:
Conform to the change to version_array.m.
Branches: main
Allow type_info arguments to version_array getter and setter functions
to be eliminated.
library/version_array.m:
Change the way that out-of-bounds errors are reported, so that the
type_info arguments to version_array.elem and version_array.'elem :='
can be eliminated when intermodule optimisation is enabled.
The out-of-bounds reporting mirrors that of array.m.
Ensure `elem' and 'elem :=' are opt-exported.
Branches: main, 11.07
library/version_array.m:
Set `thread_safe' attributes on version array predicates,
with justification.
Conform to renaming of `new' to `init' previously.
The Java and C# foreign_procs were not renamed.
Reword a bit of documentation.
Branches: main
Make io.write and the two pretty-printers in the standard library handle
version arrays in a similar way to normal arrays.
library/pprint.m:
library/pretty_printer.m:
library/stream.string_writer.m:
As above.
library/version_array.m:
Add a function for converting a version_array to a pretty_printer.doc
value.
tests/hard_coded/pretty_printing.{m,exp}:
tests/hard_coded/test_pretty_printer_defaults.{m,exp}:
tests/hard_coded/write.{m,exp}:
Include printing version_arrays in these tests.
Branches: main
Implement a new form of memory profiling, which tells the user what memory
is being retained during a program run. This is done by allocating an extra
word before each cell, which is used to "attribute" the cell to an
allocation site. The attribution, or "allocation id", is an address to an
MR_AllocSiteInfo structure generated by the Mercury compiler, giving the
procedure, filename and line number of the allocation, and the type
constructor and arity of the cell that it allocates.
The user must manually instrument the program with calls to
`benchmarking.report_memory_attribution', which forces a GC and summarises
the live objects on the heap using the attributions. The mprof tool is
extended with a new mode to parse and present that data.
Objects which are unattributed (e.g. by hand-written C code which hasn't
been updated) are still accounted for, but show up in profiles as "unknown".
Currently this profiling mode only works in conjunction with the Boehm
garbage collector, though in principle it can work with any memory allocator
for which we can access a list of the live objects. Since term size
profiling relies on the same technique of using an extra word per memory
cell, the two profiling modes are incompatible.
The output from `mprof -s' looks like this:
------ [1] some label ------
cells words cumul procedure / type (location)
14150 38872 total
* 1949/ 13.8% 4872/ 12.5% 12.5% <predicate `parser.parse_rest/7' mode 0>
975/ 6.9% 1950/ 5.0% list.list/1 (parser.m:502)
487/ 3.4% 1948/ 5.0% term.term/1 (parser.m:501)
487/ 3.4% 974/ 2.5% term.const/0 (parser.m:501)
* 1424/ 10.1% 4272/ 11.0% 23.5% <predicate `parser.parse_simple_term_2/6' mode 0>
708/ 5.0% 2832/ 7.3% term.term/1 (parser.m:643)
708/ 5.0% 1416/ 3.6% term.const/0 (parser.m:643)
...
boehm_gc/alloc.c:
boehm_gc/include/gc.h:
boehm_gc/misc.c:
boehm_gc/reclaim.c:
Add a callback function to be called for every live object after a GC.
Add a function to write out the GC_size_map array.
compiler/layout.m:
Define the alloc_site_info type which is equivalent to the
MR_AllocSiteInfo C structure.
Add alloc_site_array as a kind of "layout" array.
compiler/llds.m:
Add allocation sites to `cfile' structure.
Replace TypeMsg argument (which was also for profiling) on `incr_hp'
instructions by an allocation site identifier.
Add a new foreign_proc_component for allocation site ids.
compiler/code_info.m:
compiler/global_data.m:
compiler/proc_gen.m:
Keep the set of allocation sites in the code_info and global_data
structures.
compiler/unify_gen.m:
Add allocation sites to LLDS allocation instructions.
compiler/layout_out.m:
compiler/llds_out_file.m:
compiler/llds_out_instr.m:
Output MR_AllocSiteInfo arrays in generated C files.
Output code to register the MR_AllocSiteInfo array with the Mercury
runtime.
Output allocation site ids for memory allocation instructions.
compiler/llds_out_util.m:
Add allocation sites to llds_out_info.
compiler/pragma_c_gen.m:
compiler/ml_foreign_proc_gen.m:
Generate a macro MR_ALLOC_ID which resolves to an allocation site
structure, for every foreign_proc whose C code contains the string
"MR_ALLOC_ID". This is to be used by hand-written C code which
allocates memory.
MR_PROC_LABELs are retained for backwards compatibility. Though
they were introduced for profiling, they seem to have been co-opted
for printf-debugging since then.
compiler/ml_global_data.m:
Add allocation site structures to the MLDS global data.
compiler/mlds.m:
compiler/ml_unify_gen.m:
Add allocation site id to `new_object' instruction.
compiler/mlds_to_c.m:
Output allocation site arrays and allocation ids in high-level C code.
Output a call to register the allocation site array with the Mercury
runtime.
Delete an unused predicate.
compiler/exprn_aux.m:
compiler/jumpopt.m:
compiler/livemap.m:
compiler/mercury_compile_llds_back_end.m:
compiler/middle_rec.m:
compiler/ml_accurate_gc.m:
compiler/ml_elim_nested.m:
compiler/ml_optimize.m:
compiler/ml_util.m:
compiler/mlds_to_cs.m:
compiler/mlds_to_gcc.m:
compiler/mlds_to_il.m:
compiler/mlds_to_java.m:
compiler/mlds_to_managed.m:
compiler/opt_debug.m:
compiler/opt_util.m:
compiler/use_local_vars.m:
compiler/var_locn.m:
Conform to changes.
compiler/pickle.m:
compiler/prog_event.m:
compiler/timestamp.m:
Conform to changes in memory allocation macros.
library/benchmarking.m:
Add the `report_memory_attribution' instrumentation predicates.
Conform to changes to MR_memprof_record.
library/array.m:
library/bit_buffer.m:
library/bitmap.m:
library/construct.m:
library/deconstruct.m:
library/dir.m:
library/io.m:
library/mutvar.m:
library/store.m:
library/string.m:
library/thread.semaphore.m:
library/version_array.m:
Use attributed memory allocation throughout the standard library so
that objects don't show up in the memory profile as "unknown".
Replace MR_PROC_LABEL by MR_ALLOC_ID.
mdbcomp/program_representation.m:
mdbcomp/rtti_access.m:
Replace MR_PROC_LABEL by MR_ALLOC_ID.
profiler/Mercury.options:
profiler/globals.m:
profiler/mercury_profile.m:
profiler/options.m:
profiler/output.m:
profiler/snapshots.m:
Add a new mode to `mprof' to parse and present the data from
`Prof.Snapshots' files.
Add options for the new profiling mode.
profiler/process_file.m:
Fix a typo.
runtime/mercury_conf_param.h:
#define MR_MPROF_PROFILE_MEMORY_ATTRIBUTION if memory profiling
is enabled and we are using Boehm GC.
runtime/mercury.h:
Make MR_new_object take an allocation id argument.
Conform to changes in memory allocation macros.
runtime/mercury_memory.c:
runtime/mercury_memory.h:
runtime/mercury_types.h:
Define MR_AllocSiteInfo.
Add memory allocation functions and macros which take into the
account the additional word necessary for the new profiling mode.
These should be used in preferences to the raw memory allocation
functions wherever possible so that objects do not show up in the
profile as "unknown".
Add analogues of realloc/free which take into account the offset
introduced by the attribution word.
Add function versions of the MR_new_object macros, which can't be
written in standard C. They are only used when necessary.
Add built-in allocation site ids, to be used in the runtime and
other hand-written code when context-specific ids are unavailable.
runtime/mercury_heap.h:
Make MR_tag_offset_incr_hp_msg and MR_tag_offset_incr_hp_atomic_msg
allocate an extra word when memory attribution is desired, and store
the allocation id there.
Similarly for MR_create{1,2,3}_msg.
Replace proclabel arguments in allocation macros by alloc_id
arguments.
Replace MR_hp_alloc_atomic by MR_hp_alloc_atomic_msg. It was only
used for boxing floats.
Conform to change to MR_new_object macro.
runtime/mercury_bootstrap.h:
Delete obsolete macro hp_alloc_atomic.
runtime/mercury_heap_profile.c:
runtime/mercury_heap_profile.h:
Add the code to summarise the live objects on the Boehm GC heap and
writes out the data to `Prof.Snapshots', for display by mprof.
Don't store the procedure name in MR_memprof_record: the procedure
address is enough and faster to compare.
runtime/mercury_prof.c:
Finish and close the `Prof.Snapshots' file when the program
terminates.
Conform to changes in MR_memprof_record.
runtime/mercury_misc.h:
Add a macro to expand to the name of the allocation sites array
in LLDS grades.
runtime/mercury_bitmap.c:
runtime/mercury_bitmap.h:
Pass allocation id through bitmap allocation functions.
Delete unused function MR_string_to_bitmap.
runtime/mercury_string.h:
Add MR_make_aligned_string_copy_msg.
Make string allocation macros take allocation id arguments.
runtime/mercury.c:
runtime/mercury_array_macros.h:
runtime/mercury_context.c:
runtime/mercury_deconstruct.c:
runtime/mercury_deconstruct_macros.h:
runtime/mercury_dlist.c:
runtime/mercury_engine.c:
runtime/mercury_float.h:
runtime/mercury_hash_table.c:
runtime/mercury_ho_call.c:
runtime/mercury_label.c:
runtime/mercury_prof_mem.c:
runtime/mercury_stacks.c:
runtime/mercury_stm.c:
runtime/mercury_string.c:
runtime/mercury_thread.c:
runtime/mercury_trace_base.c:
runtime/mercury_trail.c:
runtime/mercury_type_desc.c:
runtime/mercury_type_info.c:
runtime/mercury_wsdeque.c:
Use attributed memory allocation throughout the runtime so that
objects don't show up in the profile as "unknown".
runtime/mercury_memory_zones.c:
Attribute memory zones to the Mercury runtime.
runtime/mercury_tabling.c:
runtime/mercury_tabling.h:
Use attributed memory allocation macros for tabling structures.
Delete unused MR_table_realloc_* and MR_table_copy_bytes macros.
runtime/mercury_deep_copy_body.h:
Try to retain the original attribution word when copying values.
runtime/mercury_ml_expand_body.h:
Conform to changes in memory allocation macros.
runtime/mercury_tags.h:
Replace proclabel arguments by alloc_id arguments in allocation macros.
runtime/mercury_wrapper.c:
If memory attribution is enabled, tell Boehm GC that pointers may be
displaced by an extra word.
trace/mercury_trace.c:
trace/mercury_trace_tables.c:
Conform to changes in memory allocation macros.
extras/net/tcp.m:
extras/solver_types/library/any_array.m:
extras/trailed_update/tr_array.m:
Conform to changes in memory allocation macros.
doc/user_guide.texi:
Document the new profiling mode.
doc/reference_manual.texi:
Update a commented out example.
Branches: main
Delete the empty version_types module from the standard library.
Shift the documentation it previously contained into the version_array module.
library/version_types.m:
Delete this module. It never contained anything other than
documentation and that can be moved elsewhere.
library/version_array.m:
Shift the documentation from the head of version_types.m to the head
of this module.
library/version_array2d.m:
library/version_bitmap.m:
library/version_hash_table.m:
library/version_store.m:
Point to the version_array module instead of the version_types module.
library/library.m:
Don't include the version_types module.
Branches: main
Improve consistency amongst the standard library modules.
library/array2d.m:
library/bitmap.m:
library/hash_table.m:
library/store.m:
library/thread.semaphore.m:
library/version_array.m:
library/version_array2d.m:
library/version_bitmap.m:
library/version_hash_table.m:
library/version_store.m:
Use the name "init" for predicates and functions that create new empty
data structures instead of the name "new". (The majority of standard
library modules already use the former.)
Mark the "new" versions as obsolete.
library/bit_buffer.read.m:
library/bit_buffer.write.m:
library/io.m:
library/thread.mvar.m:
browser/declarative_execution.m:
compiler/make.m:
compiler/make.program_target.m:
ssdb/ssdb.m:
Conform to the above changes.
NEWS:
Announce the above changes.
Branches: main
Improve support for folds over version arrays.
library/version_array.m:
Add foldl2, foldr, and foldr2.
Re-arrange C declarations in this module so that those
with static linkage are not written out to the .mh file.
s/int/MR_bool/ in a few spots.
NEWS:
Announce the new predicates.
Branches: main
compiler/mlds_to_cs.m:
Output #pragmas to disable warnings for C# we generate.
Restore warnings for handwritten code.
library/Mmakefile:
Delete an unnecessary line.
library/array.m:
library/dir.m:
library/io.m:
library/thread.m:
library/version_array.m:
ssdb/ssdb.m:
Make some of the remaining warnings from the C# compiler go away.
Branches: main
Add serialization of Mercury terms in C# grades.
compiler/mlds_to_cs.m:
Output [Serializable] attribute on generated classes and enums.
library/bitmap.m:
library/builtin.m:
library/version_array.m:
Add [Serializable] attribute to hand-written classes.
Branches: main
library/bitmap.m:
library/builtin.m:
library/mutvar.m:
library/version_array.m:
Make hand-written Java classes in these modules implement
`java.io.Serializable'.
Branches: main
Add support for the `csharp' grade to `mmc --make', and make it possible to
install the `csharp' grade with `mmake install'.
Also some miscellaneous fixes.
configure.in:
Require a recent enough bootstrap compiler that recognises C# as a
language for `pragma foreign_type'.
Mmakefile:
Use `mmc --make' to install the standard library in csharp grade.
aclocal.m4:
Search for the Mono C# compiler `gmcs', which is required for generics
at this time. Prefer it over the DotGNU C# compiler, which I have not
tested.
Search for `mono'. If found, it will be used in shell scripts to
launch executables generated via the csharp backend.
Remove "MS_" prefixes on the variables MS_CSC and MS_ILASM, which are
not Microsoft-specific. More importantly, it should be less likely to
make the mistake of adding an extra underscore to CSCFLAGS and
ILASMFLAGS.
README.DotNet:
Conform to variable renamings.
compiler/compile_target_code.m:
Add new linked target types `csharp_executable', `java_launcher' and
`erlang_launcher', instead of overloading `executable'.
Link with `mer_std.dll' and other libraries when generating C#
executables. There is no `mer_rt.dll'.
Pass "/debug" to the C# compiler if `--target-debug' is set.
Create a shell script to launch the executable if necessary.
Delete an unused predicate `standard_library_directory_option'.
compiler/file_names.m:
`.cs' and `.cs_date' are grade-dependent.
compiler/handle_options.m:
Force `.exe' as the executable file extension in csharp grades.
Make the `erlang' grade component imply the same options as MLDS
grades.
compiler/make.m:
Classify executable target types based on the compilation target.
compiler/make.module_target.m:
Handle `mmc --grade csharp --make <target>.dll'.
compiler/make.program_target.m:
Install library DLLs in csharp grades.
Make clean targets remove files for csharp grades.
Conform to changes.
compiler/make.util.m:
Add a stub foreign type.
Conform to changes.
compiler/module_cmds.m:
Factor out code to generate the shell scripts which launch programs
compiled in Java, Erlang and C# grades.
compiler/options.m:
Add `cli_interpreter' option to remember the name of the program which
should be used to run CLI (.NET) programs.
Add C#-related options to the help message.
compiler/options_file.m:
Remove "MS_" prefixes on MS_ILASM_FLAGS and MS_CSC_FLAGS, and remove
the extra underscore before "FLAGS". In all uses of the variables,
they were spelt without the extra underscore.
doc/user_guide.texi:
Document options and file types related to the C# grade.
library/Mmakefile:
Pass `mercury_dotnet.cs' to the C# compiler when building the standard
library. Suppress some warnings.
Allow stubs in this directory for csharp grade.
Conform to variable renamings.
library/builtin.m:
Uncomment foreign language pragmas for C#.
Handle null values in C# implementation of `deep_copy'.
library/private_builtin.m:
library/string.m:
Compare strings by ordinals in C#, instead of culture-specific rules.
Although the latter is allowed according to the documentation, it is
likely to slower, and cause confusion when porting between backends.
Handle negative index in string.set_char.
library/rtti_implementation.m:
Uncomment foreign language pragmas for C#.
`System.Type.GetType' only searches the current executing assembly or
in mscorlib for a type. As we have to be able to find types in other
assemblies (e.g. mer_std.dll or user DLLs), explicitly search through
a list of assemblies.
library/thread.semaphore.m:
Uncomment foreign language pragmas for C#.
Fix missing class qualification.
library/array.m:
library/bitmap.m:
library/bool.m:
library/dir.m:
library/exception.m:
library/io.m:
library/mutvar.m:
library/par_builtin.m:
library/region_builtin.m:
library/store.m:
library/thread.m:
library/time.m:
library/univ.m:
library/version_array.m:
Uncomment foreign language pragmas for C#.
mdbcomp/rtti_access.m:
Add type and procedure stubs.
runtime/mercury_dotnet.cs.in:
Override `Equals(object)' methods in `TypeCtorInfo_Struct' and
`TypeInfo_Struct' classes. This requires we override `GetHashCode' as
well.
Handle nulls arguments to `Equals' methods as is the expected behaviour.
Override `ToString' in `TypeCtorInfo_Struct' to produce more useful
output during debugging.
scripts/Mercury.config.in:
Record the configured CLI_INTERPRETER and pass that to the compiler as
a flag.
Conform to variable renamings.
scripts/Mmake.vars.in:
Pass value of CSCFLAGS from Mmake through to `mmc --make'.
Conform to variable renamings.
scripts/Mercury.config.bootstrap.in:
scripts/Mmake.rules:
Conform to variable renaming.
scripts/canonical_grade.sh-subr:
scripts/final_grade_options.sh-subr:
scripts/init_grade_options.sh-subr:
scripts/parse_grade_options.sh-subr:
Canonicalise high-level code, high-level-data, C# target code to the
`csharp' grade.
Handle erlang grades like other grades.
scripts/prepare_install_dir.in:
Copy `.cs' files from the runtime directory when preparing an install
directory.
browser/Mmakefile:
compiler/Mmakefile:
deep_profiler/Mmakefile:
mdbcomp/Mmakefile:
profiler/Mmakefile:
runtime/Mmakefile:
slice/Mmakefile:
ssdb/Mmakefile:
trace/Mmakefile:
Do as other non-C grades in this directory.
Conform to variable renamings.
tests/hard_coded/foreign_enum_dummy.m:
tests/hard_coded/sub-modules/non_word_mutable.m:
tests/hard_coded/sub-modules/sm_exp_bug.m:
Make these tests work in C#.
tests/mmc_make/Mmakefile:
Update a regular expression to account for `mmc --make' writing
"Making rebuild.exe" on platforms where the .exe suffix is not normally
used.
tests/mmc_make/complex_test.exp2:
Add alternative output (minor difference in floating point precision).
tests/debugger/Mmakefile:
tests/debugger/declarative/Mmakefile:
tests/general/structure_reuse/Mmakefile:
tests/hard_coded/Mmakefile:
tests/hard_coded/sub-modules/Mmakefile:
tests/par_conj/Mmakefile:
tests/stm/Mmakefile:
Disable some tests in the csharp grade.
tests/invalid/Mmakefile:
Disable some tests in the csharp grade.
Enable a test which should work in java grades.
tests/valid/Mmakefile:
Do as other non-C grades in this directory.
When testing the csharp grade in this directory, produce only the C#
target files for now.
tests/run_one_test:
Don't compress a failing test case executable when the executable is
actually only a shell script.
Branches: main
Improve the C# backend.
C# foreign types remain commented out so as not to force an upgrade of the
bootstrap compiler yet.
compiler/handle_options.m:
Enable static ground cells for C# backend.
compiler/ml_global_data.m:
Make fields of static vector structures have `public' access.
Local access doesn't make sense.
Use structs to hold vector common data in C#.
Conform to changes.
compiler/ml_proc_gen.m:
Enable use_common_cells on C#.
Conform to changes.
compiler/mlds.m:
Rename `finality' to `overridability'. The `final' keyword in Java
has multiple meanings, so avoid that word. Use the word `sealed'
to describe classes or virtual methods which cannot be overridden,
which is the keyword in C#.
compiler/ml_switch_gen.m:
Remember the types of mlconst_foreign constants. In the C# backend a
foreign enum value needs to be cast to the right type. For some
reason, there was a field already which could be used for this purpose
but was only ever set to mlds_native_int_type.
compiler/ml_type_gen.m:
Replace ml_gen_final_member_decl_flags with
ml_gen_const_member_decl_flags. Return flags with the `sealed' flag
unset, as that wouldn't make sense for member variables.
Remember the type in mlconst_foreign.
compiler/ml_unify_gen.m:
Remember the type in mlconst_foreign.
compiler/mlds_to_cs.m:
Support static data in C#.
Support foreign enumerations.
Use the `default(T)' operator to initialise certain types of variables,
particularly user-defined types, which the Mercury compiler may not
know enumeration defined in another module, i.e. a value type, which
cannot be initialised with `null'.
Remove the requirement to add mark foreign types which are of value
types with the "valuetype" prefix.
compiler/mlds_to_java.m:
Write out the `final' keyword when either the `sealed' or `const' flags
are set.
Conform to changes.
compiler/rtti_to_mlds.m:
RTTI data doesn't need the `sealed' flag set.
compiler/ml_code_util.m:
compiler/mlds_to_c.m:
compiler/mlds_to_gcc.m:
compiler/mlds_to_il.m:
compiler/ml_elim_nested.m:
Conform to changes.
library/builtin.m:
Export `comparison_result' to C# foreign code.
Fix `deep_copy' for arrays.
library/bitmap.m:
library/pretty_printer.m:
library/store.m:
library/version_array.m:
library/version_hash_table.m:
Implement these modules for C#.
library/io.m:
library/dir.m:
Implement `dir.current_directory' for C#.
library/exception.m:
Implement `catch_impl' for multi and nondet predicates.
library/rtti_implementation.m:
Implement `get_typeclass_info_from_term' for C#.
library/string.m:
Fix `string.set_char' for C#.
library/time.m:
Delete now-unnecessary "valuetype" prefix on foreign type.
library/type_desc.m:
Implement `make_type' for C#.
runtime/mercury_dotnet.cs.in:
Collapse equivalences when comparing TypeInfo_Structs for equality.
tests/hard_coded/Mmakefile:
Disable some tests in C# grade.
tests/hard_coded/ee_dummy.m:
tests/hard_coded/ee_valid_test.m:
tests/hard_coded/equality_pred_which_requires_boxing.m:
tests/hard_coded/exported_foreign_enum.m:
tests/hard_coded/export_test.m:
tests/hard_coded/external_unification_pred.m:
tests/hard_coded/float_gv.m:
tests/hard_coded/foreign_enum_dummy.m:
tests/hard_coded/foreign_import_module_2.m:
tests/hard_coded/foreign_name_mutable.m:
tests/hard_coded/foreign_type2.m:
tests/hard_coded/foreign_type3.m:
tests/hard_coded/foreign_type.m:
tests/hard_coded/hash_table_test.m:
tests/hard_coded/impure_init_and_final.m:
tests/hard_coded/intermod_poly_mode_2.m:
tests/hard_coded/loop_inv_test1.m:
tests/hard_coded/loop_inv_test.m:
tests/hard_coded/multimode.m:
tests/hard_coded/pragma_export.m:
tests/hard_coded/pragma_foreign_export.m:
tests/hard_coded/redoip_clobber.m:
tests/hard_coded/trace_goal_4.m:
tests/hard_coded/uc_export_enum.m:
tests/hard_coded/user_compare.m:
tests/hard_coded/write_xml.m:
Make these test cases work on C#.
tests/hard_coded/deep_copy.exp3:
tests/hard_coded/expand.exp3:
tests/hard_coded/float_reg.exp3:
Add expected results for C#.
tests/hard_coded/string_strip.exp2:
Update this result, which was not updated when the test case changed
previously.
Branches: main
Add semidet modes for folds over arrays and hash tables.
library/array.m:
library/hash_table.m:
library/version_array.m:
library/version_hash_table.m:
Add semidet modes (the occasional missing mostly-unique accumulator)
to fold style predicates.
NEWS:
Announce the additions.
Branches: main, 10.04
Allow inlining of Java foreign_procs.
This revealed a problem with directly using the `succeeded' flag directly as
the success indicator in Java foreign_procs. When the code of the foreign_proc
becomes a nested function, and after nested functions are eliminated, there may
not be a variable called `succeeded' in that context; it is moved into
environment struct, and the transformation is not able to update handwritten
code to reflect that. The solution is to declare a local variable for the
foreign_proc, let the handwritten code assign that, then assign its final
value to the `succeeded' flag with an MLDS statement.
We take the opportunity to name the local variable `SUCCESS_INDICATOR', in
line with other backends.
compiler/inlining.m:
Allow inlining of Java foreign_procs.
compiler/ml_foreign_proc_gen.m:
In the code generated for semidet Java foreign_procs, declare a local
`SUCCESS_INDICATOR' variable and assign its value to the `succeeded'
flag afterwards.
Add braces to give the foreign_proc variables a limited scope.
compiler/make_hlds_warn.m:
Conform to renaming.
doc/reference_manual.texi:
Update documentation for the renaming of the `succeeded' variable.
library/array.m:
library/bitmap.m:
library/builtin.m:
library/char.m:
library/construct.m:
library/dir.m:
library/exception.m:
library/float.m:
library/int.m:
library/io.m:
library/math.m:
library/private_builtin.m:
library/rtti_implementation.m:
library/string.m:
library/thread.m:
library/time.m:
library/type_desc.m:
library/version_array.m:
Conform to renaming.
Fix problems with Java foreign_procs that may now be copied into other
modules when intermodule optimisation is enabled, some by disallowing
the procedures from being duplicated, some by making referenced
classes/fields `public'.
[Some of the `may_not_duplicate' attributes may not indicate actual
problems, just that it seems not worthwhile inlining calls to the
procedure.]
extras/solver_types/library/any_array.m:
tests/hard_coded/equality_pred_which_requires_boxing.m:
tests/hard_coded/external_unification_pred.m:
tests/hard_coded/java_test.m:
tests/hard_coded/redoip_clobber.m:
tests/hard_coded/user_compare.m:
tests/valid/exported_foreign_type2.m:
tests/warnings/warn_succ_ind.m:
tests/warnings/warn_succ_ind.exp3:
Conform to renaming.
Estimated hours taken: 12 + some
Branches: main, 10.04
Make the version_array and version_hash_table types thread safe in the C and
Java grades.
Supply unsafe initialization functions so that users use non-thread safe types
with the proviso that they don't concurrently access the array or hash table.
The synchronized version dramatically slows down version_array.lookup (100x
slower on Java).
However the test case MC uses which is to replace a map being used as a memo table
with a version_hash_table for the memo_table it is still approximately 40% faster
than the map even with the synchronization overhead.
The Java side of this patch was by Peter Ross.
library/version_array.m:
For Java: Make ML_va be an interface. Provide two implementations of
the ML_va interface: ML_uva (formerly ML_va) which provides an
unsynchronized version_array, and ML_sva which provides a synchronized
version_array. ML_sva just wraps a ML_uva but locks itself so that
only one thread can access the version array at a time, making the
ML_uva safe.
Add to ML_uva the method isClone() so that the ML_sva knows when the
underlying array has been cloned, so then we can use a different lock
object as we are protecting access to a different underlying array.
For C: in threaded grades, add a lock field to struct ML_va which may
point to a mutex. Use that to synchronise concurrent accesses to the
array.
library/version_hash_table.m:
Make new, new_default create hash tables which are backed by thread
safe version arrays.
Add unsafe_new, unsafe_new_default to create hash tables using
non-thread safe version arrays.
Branches: main
library/bitmap.m:
Mask sign bits when comparing bitmaps in Java.
library/version_array.m:
Fix incorrect argument order in call to System.arraycopy when
resizing a version array.
Branches: main
library/version_array.m:
Implement version arrays for Java. This is a straightforward
translation of the C code.
library/version_hash_table.m:
Add a cast predicate implementation for Java.
Branches: main
Make version_array.set make a new array if it's not updating the latest version
of an array. This avoids unexpected bad performance, where the version array
essentially turns into a linked list with an array at the end, if the user
happens to go back to an older version of an array without an explicit
rewind/copy.
library/version_array.m:
As above.
compiler/make.dependencies.m:
Use size doubling when resizing version arrays.
Branches: main
Replace the implementations of (version) hash tables by separate chaining hash
tables. The old open addressing scheme was broken in the presence of deletes.
Fixes bug #68.
library/hash_table.m:
library/version_hash_table.m:
As above.
We no longer use double hashing in case of a hash collision, so hash
predicates only need to return one value now.
Add fold with predicate arguments.
library/array.m:
Add array.foldl for a predicate argument.
Add array.foldl2 with a unique state pair.
library/version_array.m:
Add version_array.foldl for a predicate argument.
compiler/make.m:
compiler/make.program_target.m:
compiler/make.util.m:
library/robdd.m:
Conform to change in hashing predicates.
deep_profiler/dense_bitset.m:
Add module qualifier to avoid ambiguity.
tests/hard_coded/Mmakefile:
tests/hard_coded/hash_table_delete.exp:
tests/hard_coded/hash_table_delete.m:
tests/hard_coded/hash_table_test.exp:
tests/hard_coded/hash_table_test.m:
tests/hard_coded/version_hash_table_delete.exp:
tests/hard_coded/version_hash_table_delete.m:
tests/hard_coded/version_hash_table_test2.exp:
tests/hard_coded/version_hash_table_test2.m:
Add new test cases.
tests/hard_coded/hash_bug.m:
tests/hard_coded/hash_init_bug.m:
tests/hard_coded/version_hash_table_test.m:
Conform to change in hashing predicates.
NEWS:
Document additions.
Estimated hours taken: 0.5
Branches: main
library/construct.m:
library/dir.m:
library/io.m:
library/store.m:
library/string.m:
library/term_size_prof_builtin.m:
library/thread.m:
library/version_array.m:
Add `may_not_duplicate' attributes on some "C" foreign_procs to prevent
them being written to `.opt' files.
It works around a problem with opt-exporting `thread.spawn' (which
happens to be not worth opt-exporting).
Estimated hours taken: 20
Branches: main
Add a new compiler option. --inform-ite-instead-of-switch. If this is enabled,
the compiler will generate informational messages about if-then-elses that
it thinks should be converted to switches for the sake of program reliability.
Act on the output generated by this option.
compiler/simplify.m:
Implement the new option.
Fix an old bug that could cause us to generate warnings about code
that was OK in one duplicated copy but not in another (where a switch
arm's code is duplicated due to the case being selected for more than
one cons_id).
compiler/options.m:
Add the new option.
Add a way to test for the bug fix in simplify.
doc/user_guide.texi:
Document the new option.
NEWS:
Mention the new option.
library/*.m:
mdbcomp/*.m:
browser/*.m:
compiler/*.m:
deep_profiler/*.m:
Convert if-then-elses to switches at most of the sites suggested by the
new option. At the remaining sites, switching to switches would have
nontrivial downsides. This typically happens with the switched-on type
has many functors, and we treat one or two specially (e.g. cons/2 in
the cons_id type).
Perform misc cleanups in the vicinity of the if-then-else to switch
conversions.
In a few cases, improve the error messages generated.
compiler/accumulator.m:
compiler/hlds_goal.m:
(Rename and) move insts for particular kinds of goal from
accumulator.m to hlds_goal.m, to allow them to be used in other
modules. Using these insts allowed us to eliminate some if-then-elses
entirely.
compiler/exprn_aux.m:
Instead of fixing some if-then-elses, delete the predicates containing
them, since they aren't used, and (as pointed out by the new option)
would need considerable other fixing if they were ever needed again.
compiler/lp_rational.m:
Add prefixes to the names of the function symbols on some types,
since without those prefixes, it was hard to figure out what type
the switch corresponding to an old if-then-else was switching on.
tests/invalid/reserve_tag.err_exp:
Expect a new, improved error message.
Estimated hours taken: 0.5
Branches: main
library/version_array.m:
Fix a bug which caused negative indices to be allowed
when updating a version_array.
tests/hard_coded/version_array_test.{m,exp}:
Add test cases.
Estimated hours taken: 80
Branches: main
Improvements for bitmap.m, to make it useable as a general container
for binary data.
library/bitmap.m:
runtime/mercury_bitmap.c:
runtime/mercury_bitmap.h:
Specialize the representation of bitmaps to an array of unsigned
bytes defined as a foreign type.
This is better than building on top of array(int) because it:
- is better for interfacing with foreign code
- has a more sensible machine-independent comparison order
(same as array(bool))
- avoids storing the size twice
- has more efficient copying, unification, comparison and tabling
(although we should probably specialize the handling of array(int)
and isomorphic types as well)
- uses GC_MALLOC_ATOMIC to avoid problems with bit patterns that look
like pointers (although we should do that for array(int) as well)
XXX The code for the Java and IL backends is untested.
Building the library in grade Java with Sun JDK 1.6 failed (but
at least passed error checking), and I don't have access to a
copy of MSVS.NET. The foreign code that needs to be tested is
trivial.
Add fields `bit', `bits' and `byte' to get/set a single bit,
multiple bits (from an int) or an 8 bit byte.
Add functions for converting bitmaps to hex strings and back,
for use by stream.string_writer.write and deconstruct.functor/4.
bitmap.intersect was buggy in the case where the input bitmaps
had a different size. Given that bitmaps are implemented with
a fixed domain (lookups out of range throw an exception), it
makes more sense to throw an exception in that case anyway,
so all of the set operations do that now.
The difference operation actually performed xor. Fix it and
add an xor function.
library/version_bitmap.m:
This hasn't been fully updated to be the same as bitmap.m.
The payoff would be much less because foreign code can't
really do anything with version_bitmaps.
Add a `bit' field.
Deprecate the `get/2' function in favour of the `bit' field.
Fix the union, difference, intersection and xor functions
as for bitmap.m.
Fix comparison of version_arrays so that it uses the same
method as array.m: compare size then elements in order.
The old code found version_arrays to be equal if one was
a suffix of the other.
library/char.m:
Add predicates for converting between hex digits and integers.
library/io.m:
library/stream.string_writer.m:
library/term.m:
Read and write bitmaps.
runtime/mercury_type_info.h:
runtime/mercury_deep_copy_body.h:
runtime/mercury_mcpp.h:
runtime/mercury_table_type_body.h:
runtime/mercury_tabling_macros.h:
runtime/mercury_unify_compare_body.h:
runtime/mercury_construct.c:
runtime/mercury_deconstruct.c:
runtime/mercury_term_size.c:
runtime/mercury_string.h:
library/construct.m:
library/deconstruct.m
compiler/prog_type.m:
compiler/mlds_to_gcc.m:
compiler/rtti.m:
Add a MR_TypeCtorRep for bitmaps, and handle it in the library
and runtinme.
library/Mercury.options:
Compile bitmap.m with `--no-warn-insts-without-matching-type'.
runtime/mercury_type_info.h:
Bump MR_RTTI_VERSION.
NEWS:
Document the changes.
tests/hard_coded/Mmakefile:
tests/hard_coded/bitmap_test.m:
tests/hard_coded/bitmap_simple.m:
tests/hard_coded/bitmap_tester.m:
tests/hard_coded/bitmap_test.exp:
tests/tabling/Mmakefile:
tests/tabling/expand_bitmap.m:
tests/tabling/expand_bitmap.exp:
tests/hard_coded/version_array_test.m:
tests/hard_coded/version_array_test.exp:
Test cases.
Estimated hours taken: 12
Branches: main
compiler/use_local_vars.m:
Extend this optimization to handle temporaries being both defined in
and used by foreign_proc_code instructions. This should eliminate
unnecessary accesses to the MR_fake_reg array, and thus speed up
programs that use foreign code a lot, including typeclass- and
tabling-intensive programs, since those features are implemented using
inline foreign code. I/O intensive should also benefit, but not much,
since the cost of the I/O itself overwhelms the cost of the
MR_fake_reg accesses.
Group together the LLDS instructions that are handled similarly.
Factor out some common code.
compiler/opt_util.m:
Allow for the fact that foreign_proc_codes can now refer to
temporaries.
compiler/opt_debug.m:
Print more useful information about foreign_proc_code components.
compiler/prog_data.m:
Rename the types and function symbols of the recently added
foreign_proc attributes to avoid clashing with the keywords
representing them in source code.
Add a new foreign_proc attribute, proc_may_duplicate that governs
whether the body of foreign code is allowed to be duplicated.
compiler/table_gen.m:
Include does_not_affect_liveness among the annotations for the
foreign_proc calls generated by this module. Some of these procedures
affect memory beyond their arguments, but that memory is in tables,
not in unlisted registers.
Allow some of the smaller code fragments generated by this module
to be duplicated.
compiler/inlining.m:
Respect the may_not_duplicate foreign_proc attribute.
compiler/pragma_c_gen.m:
Transmit any annotations about liveness from the HLDS to the LLDS,
since without does_not_affect_liveness annotations use_local_vars.m
cannot optimize foreign_proc_codes.
Transmit any annotations about may_duplicate from the HLDS to the LLDS,
since with them jumpopt can do a better job.
compiler/llds.m:
Use the new foreign_proc attribute instead of a boolean to represent
whether a foreign code fragment may be duplicated.
compiler/simplify.m:
Generate an error message if a may_duplicate or may_not_duplicate
attribute on a foreign_proc conflicts with a no_inline or inline pragma
(respectively) on the predicate it belongs to.
compiler/hlds_pred.m:
Fix some comment rot.
compiler/jumpopt.m:
compiler/livemap.m:
compiler/proc_gen.m:
compiler/trace_gen.m:
Conform to the changes above.
doc/reference_manual.texi:
Document the new foreign_proc attribute.
library/array.m:
library/builtin.m:
library/char.m:
library/dir.m:
library/float.m:
library/int.m:
library/io.m:
library/lexer.m:
library/math.m:
library/private_builtin.m:
library/string.m:
library/version_array.m:
Add does_not_affect_liveness annotations to the C foreign_procs that
deserve them.
configure.in:
Require the installed compiler to support does_not_affect_liveness.
tests/invalid/test_may_duplicate.{m,err_exp}:
Add a new test case to test the error checking code in simplify.m.
tests/invalid/Mmakefile:
Enable the new test case.
