Commit Graph

177 Commits

Author SHA1 Message Date
Julien Fischer
9cc8515a56 Update target for building runtime .c files.
runtime/Mmakefile:
    s/cs/all_cs/ for consistency with elsewhere.
2023-10-05 23:09:36 +11:00
Julien Fischer
2a366cf295 Deprecate --no-ansi and --no-ansi-c.
--no-ansi (mgnuc) and --no-ansi-c (mmc) have not actually done anything for
many years now. Deprecate these options and remove their "use" throughout most
of the Mercury system. (The remaining uses are in the Makefiles for the Boehm
GC, which need to be updated separately.)

Also deprecate the internal compiler option --cflags-for-ansi.

compiler/options.m:
    Document that --no-ansi-c is now deprecated.

    Document that the internal option --cflags-for-ansi is now
    deprecated.

compiler/compile_target_code.m:
    Do not pass the ANSI options to the C compiler.

scripts/mgnuc.in:
scripts/mgnuc_file_opts.sh-subr:
    Deprecate the --no-ansi option; delete code that no longer does
    anything useful.

configure.ac:
    Delete the configuration variable CFLAGS_FOR_ANSI; it is only ever
    set to be empty. (The comment talks about --no-ansi doing other things
    in the mgnuc script. It used to also cause some preprocessor macros
    to be defined for compatibility with the system headers on some
    platforms -- that has not been the case since 2013.)

doc/user_guide.texi:
    Document that --no-ansi-c is deprecated.

bytecode/Mmakefile:
compiler/Mercury.options:
library/Mercury.options:
extras/odbc/odbc.m:
runtime/Mmakefile:
scripts/Mercury.config.bootstrap.in:
scripts/Mercury.config.in:
tests/hard_coded/Mercury.options:
tests/valid/Mercury.options:
trace/Mmakefile:
util/Mmakefile:
    Conform to the above change.

NEWS.md:
    Announce the above.
2023-05-31 17:44:26 +10:00
Peter Wang
aaa6ac5fe1 Introduce io.system_error to io.m public interface.
Implement the error handling proposals from February 2022 on the
mercury-users list, and August 2022 on the mercury-reviews list.

We add io.system_error to the public interface of io.m
and document what its foreign representation is for each backend.

We allow io.error to optionally contain an io.system_error value,
and provide predicates to retrieve the io.system_error from an io.error.
The user may then inspect the system error via foreign code.

We also provide a predicate that takes an io.error and returns a name
for the system error it contains (if any). This makes it relatively easy
for Mercury programs to check for specific error conditions.

By returning platform-specific (actually, implementation-dependent)
error names, we are pushing the responsibility of mapping strings to
error conditions onto the application programmer. On the other hand, it
is not practical for us to map all possible system-specific error codes
to some common set of values. We could do it for a small set of common
error codes/exceptions, perhaps.

The standard library will construct io.error values containing
io.system_errors. However, we do not yet provide a facility for user
code to do the same.

library/io.m:
    Move io.system_error to the public interface.

    Change the internal representation of io.error to support containing
    a io.system_error. An io.system_error may originate from an errno
    value or a Windows system error code; the constructor distinguishes
    those cases.

    Add predicates to retrieve a system_error from io.error.

    Add predicate to return the name of the system error in an io.error.

    Replace make_err_msg with make_io_error_from_system_error.

    Replace make_maybe_win32_err_msg with
    make_io_error_from_maybe_win32_error.

    Delete ML_make_err_msg and ML_make_win32_err_msg macros.

browser/listing.m:
library/bitmap.m:
library/dir.m:
library/io.call_system.m:
library/io.environment.m:
library/io.file.m:
library/io.text_read.m:
mdbcomp/program_representation.m:
    Conform to changes.

    Leave comments for followup work.

tools/generate_errno_name:
tools/generate_windows_error_name:
    Add scripts to generate mercury_errno_name.c and
    mercury_windows_error_name.c.

runtime/Mmakefile:
runtime/mercury_errno_name.c:
runtime/mercury_errno_name.h:
runtime/mercury_windows_error_name.c:
runtime/mercury_windows_error_name.h:
    Add MR_errno_name() and MR_win32_error_name() functions,
    used by io.m to convert error codes to string names.

tests/hard_coded/null_char.exp:
    Update expected output.
2022-08-23 16:39:48 +10:00
Zoltan Somogyi
adf6c55847 Shut up mmake actions for check_namespace.
This reduces the size of the output of tools/bootcheck by 3700+ lines,
or about 25%.

Mmake.common.in:
    Don't print the actions implementing namespace cleanliness checks.
    To allow the attribution of any violations of the namespace rules,
    print the name of the C module before any list of detected
    nonallowed symbols.

    To avoid mmake printing the actions for creating the .o files
    that some of the check_namespace actions later check, rename
    the affected object files .pseudo_o files, so that we can specify
    a rule for them that is a copy of the rule for .o files, differing
    only in not printing the compilation command.

    Mark the files involved in check_namespace actions as dependencies
    of .SECONDARY, which means that mmake does not automatically delete them
    after building them as intermediate files. The reason for this is that
    there is no way to tell make to delete intermediate files *silently*,
    i.e. without writing out the rm command that deletes them.
    To make up for this, tools/bootcheck now cleans up each directory
    immediately after "mmake check_namespace" with "mmake clean_check",
    which invokes mmake rules that do not print the rm commands.

    This change does have the effect that these intermediate files *will*
    hang around if the check_namespace target is every invoked manually.
    However,

    - we just about never run check_namespace in a directory manually, and
    - when we do, a simple "mmake clean_check" will do the required cleanup.

scripts/Mmake.rules:
    Move the vim tag line to its usual place at the top.

    Replace old-school rules such as .m.err with their modern equivalents
    (such as %.err: %.m).

scripts/Mmakefile:
    Instead of printing the rules that make test_mdbrc, print only a
    "making test_mdbrc" message.

runtime/Mmakefile:
    Conform to the change of the name of a make variable in Mmake.common.in.

ssdb/Mmakefile:
    Fix an old bug that something else in this diff tickled: make the
    .depend target of each main module depend on SSDB_FLAGS, *not* just
    the phony general "depend" target. This was a bug because tools/bootcheck

    - copied across to stage 2 ONLY SSDB_FLAGS.in, and NOT SSDB_FLAGS,

    - did NOT explicitly make SSDB_FLAGS from SSDB_FLAGS.in, even though
      pretty much invocations of the Mercury compiler in this directory
      have "--flags SSDB_FLAGS" as an implicit argument, and then

    - built dependencies in the ssdb directory by invoking the top
      Mmakefile's dep_ssdb target, which (indirectly) invokes
      $(SSDB_LIB_NAME).depend.

    Due to all the above, I don't actually know how tools/bootcheck
    could ever build stage2/ssdb until now :-(

tools/bootcheck:
    Invoke "mmake clean_check" after each "mmake check_namespace".

    Change the code that explicitly builds the directory-specific
    X_FLAGS file in each directory (which is invoked only when using
    mmc --make) to actually build all such files, when previously
    it built only a subset.

tests/invalid/Mmakefile:
tests/invalid_nodepend/Mmakefile:
tests/invalid_onlydepend/Mmakefile:
tests/invalid_options_file/Mmakefile:
tests/invalid_purity/Mmakefile:
tests/invalid_submodules/Mmakefile:
tests/stm/Mmakefile:
    Fix an unintended consequence of replacing the .m.err rule in
    scripts/Mmake.rules with %.err: %.m, which is that the %.err: %.m
    rules in these mmakefiles became ineffective, because they appear
    in the makefile we construct *after* the rule in scripts/Mmake.rules,
    which specify a different action (the rules here return a nonzero
    status in the *absence* of failure, which would be ridiculous
    for the rule in scripts/Mmake.rules). Apparently, the %.err: %.m rules
    overrode the rule in scripts/Mmake.rules while it had the old form,
    but do not do so now it has the new form.

    The fix is to make replace all the "%.err: %.m" rules in these Mmakefiles
    with "$(PROGS:%=%.err): %.err: %.m" rules, which specify that they
    override the generic rule for the .err files of the test cases
    in each directory.

    In invalid_purity/Mmakefile, fix a bug: -nodepend suffixes make sense
    in only in the name of a *test*, not the name of a *program*, so
    move such a suffix from a program name to a test name. Without this,
    the program's .err file would be included in the list of .err files
    to which the ".err: .m" rule applies under the wrong name.

    In invalid_submodules/Mmakefile, fix the misleading names of some
    make variables, and fix a misspelt directory name.

    Standardize on "$(PROGS:%=%.err)" notation, replacing earlier instances
    of "$(addsuffix .err,$(PROGS))". The reason for this is that when I tried
    using "$addsuffix .int_err,$(PROGS))" in tests/invalid/invalid_make_int,
    it did not work. (A google search on "gnu make addsuffix" did not yield
    any clues as to why. Maybe you can only add suffixes that do not contain
    underscores?)
2022-01-24 17:38:35 +11:00
Zoltan Somogyi
9cf3f1097b Allow reporting of stats to a stream for C.
Until now, all the predicates that reported statistics wrote their output
to stderr; users could not choose another stream. This diff adds ways
to report those same statistics to a stream chosen by the user, though
for now, only when targeting C.

The code for reporting statistics used to be in benchmarking.m, in the
form of a foreign_decl/foreign_code pair that declared and defined the
needed data structures and functions, and foreign_procs that called them.
All this code had stderr hard-coded as the destination stream.

As long as the output is done by C code (as opposed to the C code
constructing a big string containing all the stuff to be output),
directing the output to a user-supplied io.text_output_stream requires
converting that text_output_stream to a value of the C "FILE *" type.
This requires access to the actual definition of the io.text_output_stream
type, which is private to io.m. We could export it to benchmarking.m,
but that is undesirable. Instead, this diff moves the code that used
to be in benchmarking.m's foreign_decl/foreign_code pair to a new
module in the runtime, mercury_report_stats.[ch], which allows
foreign_procs in both benchmarking.m and io.m to use it.

We used to have

    impure report_stats/0       in benchmarking.m
    report_stats/2              in io.m
    report_stats/3              in io.m

The difference between the two versions in io.m is a "selector" argument
that specifies which kind of stats to print. Adding a text_output_stream
argument to report_stats/2 would create report_stats/3, which clashes
with this existing name/arity pair. This diff therefore renames
io.report_stats/2 as io.report_standard_stats.

library/benchmarking.m:
    Delete the code moved to mercury_report_stats.[ch]. Call
    ML_report_full_memory_stats even if MR_MPROF_PROFILE_MEMORY is not defined
    (see next entry).

runtime/mercury_report_stats.[ch]:
    New module containing the code moved from benchmarking.m, with
    ML_report_stats renamed to ML_report_standard_stats, and then
    all ML_ prefixes replaced with MR_ prefixes.

    There is one substantive change. In benchmarking.m, the
    ML_report_full_memory_stats function was always declared, but it was
    defined, and used, only inside "#ifdef MR_MPROF_PROFILE_MEMORY".
    Change this so that it is always defined and used, but prints
    a message about memory profiling not being available if
    MR_MPROF_PROFILE_MEMORY is not defined. This is preferable to the empty
    output that calls to report_full_memory_stats used to generate in such
    situations.

runtime/Mmakefile:
    Add the new header and source files to the lists of header and source
    files respectively.

library/io.m:
    Make the changes described above.

    Provide specific predicates for the full_memory and tabling stats,
    as well as for the standard stats. For now, these are implemented
    only for C.

    Fix inconsistent indentation.

NEWS:
    Announce the rename of io.report_stats/2 to io.report_standard_stats/2,
    but do not announce the other new predicates in io.m yet. That should
    happen when they work for C# and Java as well.

compiler/file_util.m:
    Conform to the change from report_stats to report_standard_stats.

 	runtime/.r1
2021-03-21 17:30:53 +11:00
Julien Fischer
b34620214f Fix installation on aarch64 Linux.
runtime/Makefile:
    Install the aarch64 register definitions header.

    Put the MACHHDRS list in alphabetical order.
2021-01-25 15:06:02 +11:00
Peter Wang
524f4d72e2 Delete references to Erlang backend in makefiles.
Mmake.workspace:
Mmakefile:
*/Mmakefile:
tests/*/Mmakefile:
tests/valid/Mmake.valid.common:
trace/Mmakefile:
    As above.
2020-10-27 11:10:11 +11:00
Julien Fischer
ff39b3463b Remove legacy support for the Alpha architecture.
README.Linux-Alpha:
runtime/machdeps/ALPHA_REGS:
runtime/machdeps/alpha_regs.h:
runtime/machdeps/alpha_regtest:
    Delete these files.

configure.ac:
runtime/Mmakefile:
runtime/mercury_goto.h:
runtime/mercury_regs.h:
README.md:
README.Linux:
README.Linux-PPC:
    Delete or update references to the Alpha architecture.

NEWS:
    Announce the above.

scripts/mgnuc.in:
    Unrelated: update a comment.
2020-10-18 16:35:52 +11:00
Zoltan Somogyi
d262d28c2d Ignore any errors running ctags. 2020-10-03 18:01:42 +10:00
Peter Wang
544f3bf095 Use musl getopt implementation.
LICENSE:
    Mention files derived from musl library.

runtime/process_getopt:
    Process files from ../getopt/*.[ch] to produce
    mercury_getopt.h, mercury_getopt.c, mercury_getopt_long.c.

runtime/mercury_getopt.h:
runtime/mercury_getopt.c:
runtime/mercury_getopt_long.c:
    Add files generated by process_getopt.

runtime/Mmakefile:
    Update list of source files.

util/Mmakefile:
    Use musl getopt if the system C library does not have getopt().

tests/debugger/browser_test.exp:
tests/debugger/browser_test.exp2:
tests/debugger/browser_test.exp3:
tests/hard_coded/runtime_opt.exp:
    Update expected error messages to match new getopt() output.

changed exp output
2019-06-10 13:30:49 +10:00
Julien Fischer
f519e26173 Add builtin 64-bit integer types -- Part 1.
Add the new builtin types: int64 and uint64.

Support for these new types will need to be bootstrapped over several changes.
This is the first such change and does the following:

- Extends the compiler to recognise 'int64' and 'uint64' as builtin types.
- Extends the set of builtin arithmetic, bitwise and relational operators
  to cover the new types.
- Adds the new internal option '--unboxed-int64s' to the compiler; this will be
  used to control whether 64-bit integer types are boxed or not.
- Extends all of the code generators to handle the new types.
- Extends the runtimes to support the new types.
- Adds new modules to the standard library intend to contain basic operations
  on the new types.  (These are currently empty and not documented.)

There are bunch of limitations marks with "XXX INT64"; these will be lifted in
part 2 of this change.  Also, 64-bit integer types are currently always boxed,
again this limitation will be lifted in later changes.

compiler/options.m:
    Add the new option --unboxed-int64s.

compiler/prog_type.m:
compiler/prog_data.m:
compiler/builtin_lib_types.m:
     Recognise int64 and uint64 as builtin types.

compiler/builtin_ops.m:
     Add builtin operations for the new types.

compiler/hlds_data.m:
     Add new tag types for the new types.

compiler/ctgc.selector.m:
compiler/dead_proc_elim.m:
compiler/export.m:
compiler/foreign.m:
compiler/goal_util.m:
compiler/higher_order.m:
compiler/hlds_code_util.m:
compiler/hlds_dependency_graph.m:
compiler/hlds_out_pred.m:
compiler/hlds_out_util.m:
compiler/implementation_defined_literals.m:
compiler/inst_check.m:
compiler/mercury_to_mercury.m:
compiler/mode_util.m:
compiler/module_qual.qualify_items.m:
compiler/opt_debug.m:
compiler/opt_util.m:
compiler/parse_tree_to_term.m:
compiler/parse_type_name.m:
compiler/polymorphism.m:
compiler/prog_out.m:
compiler/prog_util.m:
compiler/rbmm.execution_path.m:
compiler/rtti.m:
compiler/table_gen.m:
compiler/type_util.m:
compiler/typecheck.m:
compiler/unify_gen.m:
compiler/unify_proc.m:
compiler/unused_imports.m:
compiler/xml_documentation.m:
    Conform to the above changes to the parse tree and HLDS.

compiler/c_util.m:
    Support writing out constants of the new types.

compiler/llds.m:
    Add a representation for constants of the new types to the LLDS.

compiler/stack_layout.m:
    Add a new field to the stack layout params that records whether
    64-bit integers are boxed or not.

compiler/call_gen.:m
compiler/code_info.m:
compiler/disj_gen.m:
compiler/dupproc.m:
compiler/exprn_aux.m:
compiler/global_data.m:
compiler/jumpopt.m:
compiler/llds_out_data.m:
compiler/llds_out_instr.m:
compiler/lookup_switch.m:
compiler/mercury_compile_llds_back_end.m:
compiler/prog_rep.m:
compiler/prog_rep_tables.m:
compiler/var_locn.m b/compiler/var_locn.m:
    Support the new types in the LLDS code generator.

compiler/mlds.m:
    Support constants of the new types in the MLDS.

compiler/ml_call_gen.m:
compiler/ml_code_util.m:
compiler/ml_global_data.m:
compiler/ml_rename_classes.m:
compiler/ml_top_gen.m:
compiler/ml_type_gen.m:
compiler/ml_unify_gen.m:
compiler/ml_util.m:
compiler/mlds_to_target_util.m:
compiler/rtti_to_mlds.m:
     Conform to the above changes to the MLDS.

compiler/mlds_to_c.m:
compiler/mlds_to_cs.m:
compiler/mlds_to_java.m:
    Generate the appropriate target code for constants of the new types
    and operations involving them.

compiler/bytecode.m:
compiler/bytecode_gen.m:
    Handle the new types in the bytecode generator; we just abort if we
    encounter them for now.

compiler/elds.m:
compiler/elds_to_erlang.m:
compiler/erl_call_gen.m:
compiler/erl_code_util.m:
compiler/erl_unify_gen.m:
    Handle the new types in the Erlang code generator.

library/private_builtin.m:
    Add placeholders for the builtin unify and compare operations for
    the new types.  Since the bootstrapping compiler will not recognise
    the new types we give them polymorphic arguments.  These can be
    replaced after this change has bootstrapped.

    Update the Java list of TypeCtorRep constants here.

library/int64.m:
library/uint64.m:
    New modules that will eventually contain builtin operations on the new
    types.

library/library.m:
library/MODULES_UNDOC:
    Do not include the above modules in the library documentation for now.

library/construct.m:
library/erlang_rtti_implementation.m:
library/rtti_implementation.m:
library/table_statistics.m:
deep_profiler/program_representation_utils.m:
mdbcomp/program_representation.m:
    Handle the new types.

configure.ac:
runtime/mercury_conf.h.in:
    Define the macro MR_BOXED_INT64S.  For now it is always defined, support for
    unboxed 64-bit integers will be enabled in a later change.

runtime/mercury_dotnet.cs.in:
java/runtime/TypeCtorRep.java:
runtime/mercury_type_info.h:
    Update the list of type_ctor reps.

runtime/mercury.h:
runtime/mercury_int.[ch]:
    Add macros for int64 / uint64 -> MR_Word conversion, boxing and
    unboxing.

    Add functions for hashing 64-bit integer types suitable for use
    with the tabling mechanism.

runtime/mercury_tabling.[ch]:
    Add additional HashTableSlot structs for 64-bit integer types.

    Omit the '%' character from the conversion specifiers we pass via
    the 'key_format' argument to the macros that generate the table lookup
    function.  This is so we can use the C99 exact size integer conversion
    specifiers (e.g. PRIu64 etc.) directly here.

runtime/mercury_hash_lookup_or_add_body.h:
    Add the '%' character that was omitted above to the call to debug_key_msg.

runtime/mercury_memory.h:
     Add new builtin allocation sites for boxed 64-bit integer types.

runtime/mercury_builtin_types.[ch]:
runtime/mercury_builitn_types_proc_layouts.h:
runtime/mercury_construct.c:
runtime/mercury_deconstruct.c:
runtime/mercury_deep_copy_body.h:
runtime/mercury_ml_expand_body.h:
runtime/mercury_table_type_body.h:
runtime/mercury_tabling_macros.h:
runtime/mercury_tabling_preds.h:
runtime/mercury_term_size.c:
runtime/mercury_unify_compare_body.h:
    Add the new builtin types and handle them throughout the runtime.

runtime/Mmakefile:
    Add mercury_int.c to the list of .c files.

doc/reference_manual.texi:
     Add the new types to the list of reserved type names.

     Add the mapping from the new types to their target language types.
     These are commented out for now.
2018-01-12 09:29:24 -05:00
Julien Fischer
db05403325 Writing 16- and 32-bit integers to binary file streams.
Add predicates for writing 16- and 32-bit integers to binary file streams in
native, little and big endian byte order to the standard library.

library/io.m:
    Add the new predicates.

library/uint16.m:
library/uint32.m:
    Add a functions for casting from the signed to unsigned versions
    of these types.

runtime/mercury_int.h:
    New header intended to hold things related to the implementation
    of the integer types in C grades.  Currently it contains the
    macros defining the byte reverse operations for 16- and 32-bit
    types.   (It will eventually contain macros for (un)boxing 64-bit
    integer types on 32-bit platforms as well.)

runtime/mercury_imp.h:
runtime/Mmakefile:
     Add the new header.

tests/hard_coded/Mmakefile:
tests/write_binary_multibyte_int.{m,exp}:
     Add a test for the new predicates.
2017-09-25 06:50:42 -04:00
Peter Wang
ef5a4fa59d Support building with AddressSanitizer and UndefinedBehaviorSanitizer.
configure.ac:
    Add configure option --enable-sanitizers.

Mmake.common.in:
scripts/Mercury.config.in:
    Add variables to be set when --enable-sanitizers is used.

scripts/mgnuc.in:
scripts/ml.in:
    Pass sanitizer options to the C compiler and the linker.

compiler/options.m:
    Add options --cflags-for-sanitizers and --linker-sanitizer-flags
    for receiving the configuration.

    Set --linker-trace-flags and --shlib-linker-trace-flags default
    values to empty instead of "-g" (likely copy error).

compiler/compile_target_code.m:
    Pass sanitizer options to the C compiler, and the linker when
    building an executable or shared library.

runtime/Mmakefile:
trace/Mmakefile:
    Pass sanitizer options to linker when building shared libraries.

README.sanitizers:
    Add instructions.
2016-10-13 17:15:10 +11:00
Zoltan Somogyi
53b573692a Convert C code to use // style comments.
runtime/*.[ch]:
trace/*.[chyl]:
    As above. In some places, improve comments, e.g. by expanding contractions
    such as "we've". Add #ifndef guards against double inclusion around
    the trace/*.h files that did not already have them.

tools/*:
    Make the corresponding changes in shell scripts that generate .[ch] files
    in the runtime.

tests/*:
    Conform to a slight change in the text of a message.
2016-07-14 13:57:35 +02:00
Zoltan Somogyi
156ee8b37e Remove the long obsolete runtime/mercury_conf_bootstrap.h. 2016-03-17 23:32:23 +11:00
Zoltan Somogyi
6367930ce3 Delete long obslete bootstrap code. 2016-03-16 23:26:57 +11:00
Julien Fischer
2ab1f11526 More work on installation with non-C grade compilers.
runtime/Mmakefile:
    Always install the runtime header files, even in non-C grades.
    Add a comment explaining why this needs to be done.

    Update the comment describing where all the different versions of
    the runtime live and how they are built.

    Delete now-unused code for building the IL backend version of the
    runtime.

compiler/Mmakefile:
     Document the how we install the C# version of the compiler.

     Add an XXX comment about a difference between Mono and .NET that
     we don't yet handle when the compiler is built in the C# grade.

library/Mmakefile:
     Delete code for cleaning up files generated by the IL backend.
2015-12-30 02:51:29 +11:00
Julien Fischer
3dd02876a5 Delete the MLDS->IL backend.
compiler/mlds_to_il.m:
compiler/mlds_to_ilasm.m:
compiler/mlds_to_managed.m:
compiler/il_peephole.m:
compiler/ilasm.m:
compiler/ilds.m:
    Delete the modules making up the MLDS->IL code generator.

compiler/globals.m:
compiler/prog_data.m:
    Delete IL as a target and foreign language.

compiler/prog_io_pragma.m:
    Delete the max_stack_size/1 foreign proc attribute.  This was only
    ever required by the IL backend.

compiler/options.m
    Delete options used for the IL backend.

compiler/write_deps_file.m:
    Don't generate mmake targets for .il files etc.

compiler/*.m:
    Conform to the above changes.

compiler/notes/compiler_design.html
compiler/notes/work_in_progress.html
    Conform to the above changes.

library/*.m:
    Delete IL foreign_proc and foreign_export pragmas.

README.DotNet:
    Delete this file.

browser/Mmakefile:
compiler/Mmakefile:
deep_profiler/Mmakefile:
mdbcomp/Mmakefile:
mfilterjavac/Mmakefile:
profiler/Mmakefile:
runtime/Mmakefile:
slice/Mmakefile:
    Conform the above changes.

configure.ac:
    Don't check that IL is a supported foreign language when performing the
    up-to-date check.

    Delete the '--enable-dotnet-grades' option.

scripts/Mmake.vars.in:
    Delete variables used for the IL backend (and in on case by the Aditi
    backend).

scripts/Mercury.config.bootstrap.in:
scripts/Mercury.config.in:
scripts/Mmake.rules:
scripts/canonical_grade.sh-subr:
tools/bootcheck:
    Delete stuff related to the 'il' and 'ilc' grades.

doc/reference_manual.texi:
     Delete the documentation of the 'max_stack_size' option.

doc/user_guide.texi:
     Delete stuff related to the IL backend.

tests/hard_coded/csharp_test.{m,exp}:
tests/invalid/foreign_type_missing.{m,err_exp}:
tests/valid/csharp_hello.m:
	Delete these tests: they are no longer relevant.

tests/hard_coded/equality_pred_which_requires_boxing.m:
tests/hard_coded/foreign_import_module.m:
tests/hard_coded/foreign_import_module_2.m:
tests/hard_coded/foreign_type.m:
tests/hard_coded/foreign_type2.m:
tests/hard_coded/foreign_type3.m:
tests/hard_coded/intermod_foreign_type2.m:
tests/hard_coded/lp.m:
tests/hard_coded/user_compare.m:
tests/invalid/foreign_type_2.m:
tests/invalid/foreign_type_missing.{m,err_exp}:
tests/invalid/foreign_type_visibility.m:
tests/invalid/illtyped_compare.{m,err_exp}:
tests/submodules/external_unification_pred.m
tests/valid/big_foreign_type.m
tests/valid/solver_type_bug.m
tests/valid_seq/foreign_type_spec.m
tests/valid_seq/intermod_impure2.m
    Delete IL foreign_procs where necessary.

tests/hard_coded/Mmakefile
tests/invalid/Mercury.options
tests/invalid/Mmakefile
tests/submodules/Mmakefile
tests/valid/Mercury.options
tests/valid/Mmake.valid.common
tests/valid/Mmakefile
tests/valid_seq/Mmakefile
tests/valid_seq/Mercury.options
    Conform to the above changes.
2015-09-21 11:34:46 +10:00
Zoltan Somogyi
d33273d033 Tell vim not to expand tabs in Makefiles.
This file-specific setting will override a default setting of expandtabs
in $HOME/.vimrc.

*/Makefile:
*/Mmakefile:
    As above.

tests/hard_coded/.gitignore:
    Don't ignore the purity subdir. This ignore must have been left over
    from when purity.m was a test in hard_coded, not hard_coded/purity,
    and it ignored an executable, not a directory.
2015-01-08 22:07:29 +11:00
Zoltan Somogyi
cd72d000a8 Remove support for the MPS garbage collector.
As Tomas By's recent emails suggest, this support is doing more harm than good,
by falsely implying to people that MPS is a viable alternative to the Boehm
collector. The MPS collector was only ever experimental, and never performed
as well as Boehm. MPS isn't even in the git repository on git hub. It was
stored in a separate CVS repository on mundula, and (as far as I know)
wasn't carried over to github. The code of MPS was last touched a long time
ago; I would be surprised if it worked on today's systems without changes.

Mmake.common.in:
Mmake.workspace:
RESERVED_MACRO_NAMES:
boehm_gc/Mmakefile:
compiler/add_pragma.m:
compiler/compile_target_code.m:
compiler/globals.m:
compiler/handle_options.m:
compiler/mercury_compile_mlds_back_end.m:
compiler/mlds_to_c.m:
compiler/options.m:
compiler/peephole.m:
doc/user_guide.texi:
library/benchmarking.m:
runtime/Mmakefile.m:
runtime/mercury.h:
runtime/mercury_conf_param.h:
runtime/mercury_grade.h:
runtime/mercury_heap.h:
runtime/mercury_init.h:
runtime/mercury_memory.h:
runtime/mercury_wrapper.[ch]:
scripts/canonical_grade.sh-subr:
scripts/init_grade_options.sh-subr:
scripts/mgnuc.in:
scripts/ml.in:
scripts/parse_grade_options.sh-subr:
util/mkinit.c:
    Remove all references to MPS.
2014-08-05 15:45:33 +02:00
Zoltan Somogyi
f6fafa150d Fix Mantis bug 314 for temp frames created by nondet procedures.
Also fix some bugs in related code, and improve the related debugging
infrastructure.

-------------------

runtime/mercury_stacks.[ch]:
   Fix bug 314 for temp frames created by nondet procedures. The fix will
   probably also work for *det* procedures that create temp frames on the
   nondet stack, but I can't think of a way to test that, because det
   procedures create such frames only in very specific circumstances,
   and I cannot think of a way to nest a recursive call inside those
   circumstances.

   The problem was that when we were creating new temp frames on
   the nondet stack, we did not check whether the current nondet stack segment
   had room for them. We now do.

   The stack trace tracing code needs to know the size of each nondet stack
   frame, since it uses the size to classify frames as temp or ordinary.
   The size is given by the difference in address between the address of the
   frame and the address of the previous frame. This difference would yield
   an incorrect size and hence an incorrect frame classification if a temp
   frame were allowed to have a frame on a different segment as its
   immediate predecessor.

   We prevent this by putting an ordinary (i.e. non-temp) frame at the bottom
   of every new nondet stack segment as a sentinel. We hand-build this frame,
   since it is not an "ordinary" ordinary frame. It is not created by a call,
   so it has no meaningful success continuation, and since it does not make
   any calls, no other frame's success continuation can point to it either.

   If backtracking reaches this sentinel frame, we use this fact to free
   all the segments beyond the one the sentinel frame is in, but keep the
   frame the sentinel frame is in, since we are likely to need it again.

   Document the reason why MR_incr_sp_leaf() does not have to check
   whether a new stack segment is needed. (See the fix to llds_out_instr.m
   below.)

runtime/mercury_stack_trace.[ch]:
   When traversing the nondet stack, treat the sentinel frame specially.
   We have to, since it is an ordinary frame (i.e. it is not a temp frame),
   but it is not an "ordinary" ordinary frame: it does not make calls,
   and hence calls cannot return to it, and it does not return to any
   other frame either. It therefore does not have the layout structures
   (label and proc) that the nondet stack traversal expects to find.

   Fix an old bug: the nondet stack traversal used a simple directional
   pointer comparison to check whether it has reached the bottom of the nondet
   stack. This is NOT guaranteed to work in the presence of stack segments:
   depending on exactly what addresses new stack segments get, a stack frame
   can have an address BELOW the address of the initial stack frame
   even if it is logically ABOVE that stack frame.

   Another old bug was that a difference between two pointers, which could
   be 64 bit, was stored in an int, which could be 32 bit.

   The nondet stack traversal code used a similar directional comparison
   to implement optionally stopping at an arbitrary point on the nondet stack.
   Fixing this facility (the limit_addr parameter of MR_dump_nondet_stack)
   while preserving reasonable efficiency would not be trivial, but it would
   also be pointless, since the facility is not actually used. This diff
   deletes the parameter instead.

   Move some loop invariant code out of its loop.

trace/mercury_trace_cmd_developer.c:
trace/mercury_trace_external.c:
   Don't pass the now-deleted parameter to mercury_stack_trace.c.

runtime/mercury_wrapper.c:
   Record the zone of the initial nondet stack frame, since the fix
   of mercury_stack_trace.c needs that info, and it is much more efficient
   to set it up just once.

tests/hard_coded/bug314.{m,exp}:
   The regression test for this bug.

tests/hard_coded/Mercury.options:
   Compile the new test case with the options it needs.

tests/hard_coded/Mmakefile:
   Enable the new test case.

-------------------

runtime/mercury_wrapper.c:
   The compiler knows the number of words in a stack frame it is creating,
   not necessarily the number of bytes (though it could put bounds on that
   from the number of tag bits). Since this size must sync with the runtime,
   change the runtime's variable holding this size to also be in words.

   Note that similar changes would also be beneficial for other sizes.

compiler/llds_out_instr.m:
   Conform to the change in mercury_wrapper.c, fixing an old bug
   (mercury_wrapper.c reserved 128 BYTES for leaf procedures, but
   llds_out_instr.m was using that space for procedures whose frames
   were up to 128 WORDS in size.)

compiler/mercury_memory.c:
   Conform to the change in mercury_wrapper.c.

-------------------

runtime/mercury_memory_zones.h:
   Instead of starting to use EVERY zone at a different offset, do this
   only for the INITIAL zones in each memory area, since only on these
   is it useful. When the program first starts up, it WILL be using
   the initial parts of the det stack, nondet stack and heap, so it is
   useful to make sure that these do not collide in the cache. However,
   when we allocate e.g. the second zone in e.g. the nondet stack, we are
   no more likely to be beating on the initial part of any segment
   of the det stack than on any other part of such segments.

   If a new debug macro, MR_DEBUG_STACK_SEGMENTS_SET_SIZE is set (to an int),
   use only that many words in each segment. This allows the segment switchover
   code to be exercised and debugged with smaller test cases.

runtime/mercury_conf_param.h:
   Document the MR_DEBUG_STACK_SEGMENTS_SET_SIZE macro.

   Convert this file to four-space indentation with tabs expanded.

-------------------

runtime/mercury_overflow.h:
   Make abort messages from overflows and underflows more useful by including
   more information.

runtime/mercury_overflow.c:
   Add a new function to help with the better abort messages.
   Since this file did not exist before, create it.

runtime/Mmakefile:
   Add the new source file to the list of source files.

-------------------

runtime/mercury_debug.[ch]:
   Fix problems with the formatting of the debugging output from existing
   functions.

   Add new functions for dumping info about memory zones.

   Factor out some common code.

   Convert the header file to four-space indentation.

-------------------

runtime/mercury_grade.c:
   Generate an error if stack segments are specified together with stack
   extension

-------------------

trace/.gitignore:
util/.gitignore:
tests/debugger/.gitignore:
   List some more files.

-------------------

runtime/mercury_context.c:
runtime/mercury_engine.[ch]:
runtime/mercury_misc.h:
compiler/notes/failure.html:
   Fix white space.
2014-04-18 02:02:35 +10:00
Julien Fischer
4e6828214d Fix bug #288.
Components of the Mercury system that were implemented directly in C were not
respecting the mmake LDFLAGS and EXTRA_LDFLAGS variables (or LD_LIBFLAGS,
EXTRA_LDLIBFLAGS for libraries).

The following patch was contributed by Keri Harris -- I have extended it
slightly to fix some omissions in the handling of .dylib files (i.e.  Mac OS X
style shared libraries).

NEWS:
    Announce the resolution of bug #288.

boehm_gc/Makefile.direct:
runtime/Mmakefile
trace/Mmakefile:
util/Mmakefile:
	Pass options set via LD_FLAGS or EXTRA_LDFLAGS (or the library
	versions) to the linker when building executables (or shared
	libraries) in these directories.
2013-06-20 18:13:41 +10:00
Peter Ross
5fe4176f89 Fix compilation problems of the runtime under Sparc Solaris 10.
Estimated hours taken: 2
Branches: main, 11.07

Fix compilation problems of the runtime under Sparc Solaris 10.

runtime/Mmakefile:
	fesetround can only be found if -lm is included in the link libraries.

runtime/mercury_conf.h.in:
	Fix a spelling mistake.

runtime/mercury_wrapper.c:
	Handle the case where we don't have fesetround.
2012-07-29 10:13:17 +00:00
Julien Fischer
af99b1bd1f Avoid problems with the inclusion of windows.h in the runtime and a few
Branches: main, 11.07

Avoid problems with the inclusion of windows.h in the runtime and a few
standard library modules.  By default, windows.h includes a lot of other
header files, some of which conflict with other parts of the Windows API.

Such a conflict occurs with G12 tcp module where the inclusion of winsock2.h
conflicts with the inclusion of winsock.h by windows.h.  We can avoid this by
defining the macro WIN32_LEAN_AND_MEAN.  It causes winsock.h and some other
headers not to be included by windows.h.  (Should the other headers actually be
required -- the Mercury runtime and standard library do not require them --
then they will need to be included separately.)

To make this (and other workarounds for silly things in windows.h) possible
this change adds wrapper header for windows.h to the runtime.  We now use
this wrapper header throughout the rest of the system rather than including
windows.h directly.

runtime/mercury_windows.h:
	Add a wrapper around windows.h that allows us to control
	how windows.h is included in a consistent manner.

	Define WIN32_LEAN_AND_MEAN in order to avoid problems
	with code that uses winsock2.h.

runtime/Mmakefile:
	Include the new header.

runtime/mercury_memory.c:
runtime/mercury_memory_handlers.h
runtime/mercury_memory_zones.c:
runtime/mercury_timing.c:
library/dir.m:
library/io.m:
library/time.m:
	Include mercury_windows.h rather than directly including
	windows.h.
2011-10-26 14:08:45 +00:00
Paul Bone
a071eaba53 Improve thread pinning:
+ Now pins threads intelligently on SMT systems by balancing threads among
      cores.
    + performs fewer migrations when pinning threads (If a thread's current
      CPU is a valid CPU for pinning, then it is not migrated).
    + Handle cases where the user requests more threads than available CPUs.
    + Handle cases where the process is restricted to a subset of CPUs by its
      environment.  (for instance, Linux cpuset(7))

This is largely made possible by the hwloc library
http://www.open-mpi.org/projects/hwloc/  However, hwloc is not required and the
runtime system will fall back to sched_setaffinity(), it will simply be less
intelligent WRT SMT.

runtime/mercury_context.h:
runtime/mercury_context.c:
    Do thread pinning either via hwloc or sched_setaffinity.  Previously only
    sched_setaffinity was used.

    Update thread-pinning algorithm, this:

    Include the general thread pinning code only if MR_HAVE_THREAD_PINNING is
    defined.

    Use a combination of sysconf and sched_getaffinity to detect the number of
    processors when hwloc isn't available.  This makes the runtime compatible
    with Linux cpuset(7) when hwloc isn't available.

configure.in:
Mmake.common.in:
    Detect presence of the hwloc library.

configure.in:
    Detect sched_getaffinity()

aclocal.m4:
acinclude.m4:
    Move aclocal.m4 to acinclude.m4, the aclocal program will build aclocal.m4
    and retrieve macros from the system and the contents of acinclude.m4.

Mmakefile:
    Create a make target for aclocal.m4.

runtime/Mmakefile:
    Link the runtime with libhwloc in low-level C parallel grades.

    Include CFLAGS for libhwloc.

scripts/ml.in:
    Link programs and libraries with libhwloc in low-level C parallel grades.

runtime/mercury_conf.h.in:
    Define MR_HAVE_HWLOC when it is available.

    Define MR_HAVE_SCHED_GETAFFINITY when it is available.

runtime/mercury_conf_param.h:
    Define MR_HAVE_THREAD_PINNING if either hwloc or [sched_setaffinity and
    sched_getaffinity] are available.

runtime/mercury_thread.c:
runtime/mercury_wrapper.c:
    Only call MR_pin_thread and MR_pin_primordial_thread if
    MR_HAVE_THREAD_PINNING is defined.

runtime/mercury_thread.h:
runtime/mercury_context.h:
    Move the declaration of MR_pin_primordial_thread to mercury_context.h from
    mercury_thead.h since it's definition is in mercury_context.c.

    Require MR_HAVE_THREAD_PINNING for the declaration of
    MR_pin_primordial_thread.

runtime/mercury_wrapper.c:
    Conform to changes in mercury_context.h

INSTALL_CVS:
tools/test_mercury
    Run aclocal at the right times while testing Mercury.
2011-10-13 02:42:21 +00:00
Peter Wang
fd76da59ff Add support for the csharp' grade to mmc --make', and make it possible to
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.
2010-09-30 07:23:36 +00:00
Peter Wang
11ddb1fbc0 Fix bug #67, where mprof would abort due to multiple lines in the Prof.Decl
Branches: main, 10.04

Fix bug #67, where mprof would abort due to multiple lines in the Prof.Decl
file having the same entry label.

The cause was the files runtime/mercury_ho_call_inits.i and
runtime/mercury_method_call_inits.i being generated with duplicate
MR_init_entry_an() lines.  That could happen if parallel make is used in the
runtime directory.  Due to bad makefile rules, the command which generates
the files (as side-effects) would be invoked multiple times, concurrently.
Finally, as those files weren't generated atomically, the concurrent
invocations would append duplicate lines to the files.

runtime/Mmakefile:
        Don't list multiple outputs as the result of the make_spec_ho_call and
        make_spec_method_call commands, which is the same as writing multiple
        independent rules, one for each output.

        Don't mention the *_declares.i and *_inits.i files at all.
        They will be created when the *_codes.i files are created.
        The downside is, if they are removed (and *_codes.i are not), then
        make will not know how to generate them.

tools/make_spec_ho_call:
tools/make_spec_method_call:
        Make these scripts generate the *_declares.i and *_inits.i files
        atomically (not strictly necessary with the previous change).
2010-07-15 06:55:37 +00:00
Paul Bone
df2349838f Introduce Ralph's History based Garbage Collector (HGC).
This change set creates a new value 'hgc' for the garbage collector grade
component.  This enables a new garbage collector included with the runtime
system.  Note that this garbage collector is experimental and this grade does
not work yet.

This change set represents work done by both myself and Ralph Becket.

runtime/mercury_hgc.c:
runtime/mercury_hgc.h:
    Include the new garbage collector.

runtime/mercury_expanding_array.h:
    This new header file provides a template for a type safe expanding array,
    it is used by HGC.

runtime/Mmakefile:
    Include the new modules in the runtime directory mercury_hgc.[ch] and
    mercury_expanding_array.h.

    Sort the lists of source files and header files.

compiler/globals.m:
    Include 'hgc' in the options for which garbage collector to use.

compiler/handle_options.m:
    Handle the new 'hgc' value for the garbage collector type.

compiler/options.m:
    Print out information about the new 'hgc' option in the --help text of the
    compiler.

compiler/compile_target_code.m:
    Pass the -DMR_HGC option to the C compiler for hgc grades.

compiler/add_pragma.m:
compiler/mercury_compile_mlds_back_end.m:
compiler/mlds_to_c.m:
compiler/peephole.m:
    Conform to changes in globals.m.

library/benchmarking.m:
    Fix a use of MR_CONSERVATIVE_GC that should have been MR_BOEHM_GC.

robdd/bryant.h:
    Include the mercury_hgc.h header file when MR_HGC is defined.

runtime/mercury_init.h:
runtime/mercury_heap.h:
    Include mercury_hgc.h when MR_HGC is defined.

runtime/mercury_memory_zones.c:
    Use mercury_hgc_add_roots_range when appropriate.

runtime/mercury_wrapper.c:
    Include initialisation code for HGC.

util/mkinit.c:
    Include a call to mercury_hgc_set_stack_bot in init files in the HGC grade.

runtime/mercury_conf_param.h:
runtime/mercury_grade.h:
scripts/canonical_grade.sh-subr
scripts/init_grade_options.sh-subr
scripts/mgnuc.in
scripts/ml.in
scripts/parse_grade_options.sh-subr
    Add the new hgc value for the garbage collector grade component.
2010-02-11 04:36:11 +00:00
Paul Bone
92afa23af5 Support for threadscope profiling of the parallel runtime.
This change adds support for threadscope profiling of the parallel runtime in
low level C grades.  It can be enabled by compiling _all_ code with the
MR_PROFILE_PARALLEL_EXECUTION_SUPPORT C macro defined.  The runtime, libraries
and applications must all have this flag defined as it alters the MercuryEngine
and MR_Context structures.

See Don Jones Jr, Simon Marlow, Satnam Singh - Parallel Performance Tuning for
Haskell.

This change also includes:

    Smarter thread pinning (the primordial thread is pinned to the thread that
    it is currently running on).

    The addition of callbacks from the Boehm GC to notify the runtime of
    stop the world garbage collections.

    Implement some userspace spin loops and conditions.  These are cheaper than
    their POSIX equivalents, do not support sleeping, and are signal handler
    safe.

boehm_gc/alloc.h:
boehm_gc/alloc.c:
    Declare and define the new callback functions.

boehm_gc/alloc.c:
    Call the start and stop collect callbacks when we start and stop a
    stop-the-world collection.

    Correct how we record the time spent collecting, it now includes
    collections that stop prematurely.

boehm_gc/pthread_stop_world.c:
    Call the pause and resume thread callbacks in each thread where the GC
    arranges for that thread to be stopped during a stop-the-world collection.

runtime/mercury_threadscope.c:
runtime/mercury_threadscope.h:
    New files implementing the threadscope support.

runtime/mercury_atomic_ops.c:
runtime/mercury_atomic_ops.h:
    Rename MR_configure_profiling_timers to MR_do_cpu_feature_detection.

    Add a new function MR_read_cpu_tsc() to read the TSC register from the CPU,
    this simply abstracts the static MR_rdtsc function.

runtime/mercury_atomic_ops.h:
    Modify the C inline assembler to ensure we tell the C compiler that the
    value in the register mapped to the 'old' parameter is also an output from
    the instructions.  That is, the C compiler must not depend on the value of
    'old' being the same before and after the instruction is executed.  This
    has never been a problem in practice though.

    Implement some cheap userspace mutual exclusion locks and condition
    variables.  These will be faster than pthread's mutexes when critical
    sections are short and threads are pinned to separate CPUs.

runtime/mercury_context.c:
runtime/mercury_context.h:
    Add a new function for pinning the primordial thread.  If the OS supports
    sched_getcpu we use it to determine which CPU the primordial thread should
    use.  No other thread will be pinned to this CPU.

    Add a numeric id field to each context, this id is uniquely assigned and
    identifies each context for threadscope.

    MR_schedule_context posts the 'context runnable' threadscope event.

    MR_do_runnext has been modified to destroy engines differently, it ensures
    they cleanup properly so that their threadscope events are flushed properly
    and then calls pthread_exit(0)

    MR_do_runnext posts events for threadscope.

    MR_do_join_and_continue posts events for threadscope.

runtime/mercury_engine.h:
    Add new fields to the MercuryEngine structure including a buffer of
    threadscope events, a clock offset (used to synchronize the TSC clocks) and
    a unique identifier for the engine,

runtime/mercury_engine.c:
    Call MR_threadscope_setup_engine() and MR_threadscope_finalize_engine for
    newly created and about-to-be-destroyed engines.

    When the main context finishes on a thread that's not the primordial thread
    post a 'context is yielding' message before re-scheduling the context on
    the primordial thread.

runtime/mercury_thread.c:
    Added an XXX comment about a potential problem, it's only relevant for
    programs using thread.spawn.

    Added calls to the TSC synchronisation code used for threadscope profiling.
    It appears that this is not necessary on modern x86 machines, it has been
    commented out.

    Post a threadscope event when we create a new context.

    Don't call pthread_exit in MR_destroy_thread, we now do this in
    MR_do_runnext so that we can unlock the runqueue mutex after cleaning up.

runtime/mercury_wrapper.c:
    Conform to changes in mercury_atomic_ops.[ch]

    Post an event immediately before calling main to mark the beginning of the
    program in the threadscope profile.

    Post a "context finished" event at the end of the program.

    Wait until all engines have exited before cleaning up global data, this is
    important for finishing writing the threadscope data file.

configure.in:
runtime/mercury_conf.h.in:
    Test for the sched_getcpu C function and utmpx.h header file, these are
    used for thread pinning.

runtime/Mmakefile:
    Include the mercury_threadscope.[hc] files in the list of runtime headers
    and sources respectively.
2009-12-03 05:28:00 +00:00
Zoltan Somogyi
d4bbcda309 Move all the frequently occurring layout structures and components of layout
Estimated hours taken: 40
Branches: main

Move all the frequently occurring layout structures and components of layout
structures into arrays where possible. By replacing N global variables holding
individual layout structures or layout structure components with one global
variable holding an array of them, we reduce the sizes of the symbol tables
stored in object files, which should speed up both the C compiler and the
linker.

Measured on the modules of the library, mdbcomp and compiler directories
compiled in grade asm_fast.gc.debug, this diff reduces the size of the
generated C source files by 7.8%, the size of the generated object files
by 10.4%, and the number of symbols in the symbol tables of those object files
by a whopping 42.8%. (These improvements include, and are not on top of,
the improvements in my previous similar diff.)

runtime/mercury_stack_layout.h:
	Each label layout structure has information about the type and
	location of every variable that is live at that label. We store
	this information in three arrays: an array of pseudo-typeinfos giving
	the types of all these variables, and two arrays MR_ShortLvals and
	MR_LongLvals respectively giving their locations. (Most of the time,
	the location's encoded form fits into one byte (the MR_ShortLval)
	but sometimes it needs more bits (this is when we use MR_LongLval)).

	We used to store these three arrays, whose elements are different
	types, in a single occurrence-specific common structure,
	one after the other, with a cumbersome mechanism being required
	to access them. We now store them as segments of three separate arrays,
	of pseudo-typeinfos, MR_ShortLvals and MR_LongLvals respectively.
	This makes access simpler and faster (which will matter more to any
	accurate garbage collector than it does to the debugger). It also
	allows more scope for compression, since reusing an existing segment of
	one of the three arrays is easier than reusing an entire common
	structure, which would require the equivalent of exact matches
	on all three arrays.

	Since most label layout structures that have information about
	variables can encode the variables' locations using only MR_ShortLvals,
	create a version of the label layout structure type that omits the
	field used to record the whereabouts of the long location descriptors.

	Add macros now generated by the compiler to initialize layout
	structures.

	Simplify a one-field struct.

runtime/mercury_grade.h:
	Increment the binary compatibility version number for debuggable
	executables, since .c and .o files from before and after the change
	to label layout structures are NOT compatible.

runtime/mercury_type_info.h:
	Fix some binary-compatibility-related bit rot.

runtime/mercury_misc.h:
	Move here the existing macros used by the compiler when generating
	references to layout arrays, and add new ones.

runtime/mercury_goto.h:
	Delete the macros moved to mercury_misc.h.
	Conform to the changes in mercury_stack_layout.h.

runtime/Mmakefile:
	Prevent the unnecessary rebuilding of mercury_conf.h.

runtime/mercury_accurate_gc.c:
runtime/mercury_agc_debug.c:
runtime/mercury_layout_util.c:
runtime/mercury_stack_trace.c:
runtime/mercury_types.h:
trace/mercury_trace.c:
trace/mercury_trace_vars.c:
	Conform to the changes in mercury_stack_layout.h.

runtime/mercury_wrapper.c:
	Improve the debug support a bit.

runtime/mercury_engine.h:
	Fix style.

compiler/layout.m:
	Make the change described at the top. Almost all layout structures
	are now in arrays. The only exceptions are those that occur rarely,
	and proc layouts, whose names need to be derivable from the name
	of the procedure itself.

	Instead of having a single type "layout_data" that can represent
	different kinds of single global variables (not array slots), have
	different kinds for different purposes. This makes the code clearer
	and allows traversals that do not have to skip over inapplicable kinds
	of layout structures.

compiler/layout_out.m:
	Output the new arrays.

compiler/stack_layout.m:
	Generate the new arrays. Previously, an individual term generated by
	stack_layout.m could represent several components of a layout
	structure, with the components separated by layout_out.m. We now
	do the separation in stack_layout.m itself, adding each component
	to the array to which it belongs.

	Instead of passing around a single stack_layout_info structure,
	pass around several smaller one. This is preferable, since I found out
	the hard way that including everything in one structure would give the
	structure 51 fields. Most parts of the module work with only one
	or two of these structures, which makes their role clearer.

	Cluster related predicates together.

compiler/options.m:
doc/user_guide.texi:
	Add an option that control whether stack_layout.m will attempt to
	compress the layout arrays that can meaningfully be comressed.

compiler/llds.m:
	Remove the old distinction between a data_addr and a data_name,
	replacing both types with a single new one: data_id. Since different
	kinds of data_names were treated differently in many places,
	the distinction in types (which was intended to allow us to process
	data_addrs that wrapped data_names differently from other kinds of
	data_addrs) wasn't buying us anything anymore.

	The new data_id type allows for the possibility that the code generator
	wants to generate a reference to an address it does not know yet,
	because it is a slot in a layout array, and the slot has not been
	allocated yet.

	Add the information from which the new layout array structures
	will be generated to the LLDS.

compiler/llds_out.m:
	Call layout_out.m to output the new layout arrays.

	Adapt the decl_id type to the replacement of data_addrs by data_ids.
	Don't both keeping track of the have-vs-have-not-declared status
	of structures that are always declared at the start.

	When writing out a data_addr, for some kinds of data_addr, llds_out.m
	would write out the name of the relevant variable, while for some other
	kinds, it would write out its address. This diff separates out those
	those things into separate predicates, each of which behaves
	consistently.

compiler/mercury_compile_llds_back_end.m:
	Convey the intended contents of the new layout arrays from
	stack_layout.m to llds_out.m.

compiler/continuation_info.m:
	Add a type required by the way we now generate proc_static structures
	for deep profiling.

compiler/hlds_rtti.m:
	Add distinguishing prefixes to the field names of the rtti_proc_label
	type.

compiler/code_info.m:
compiler/code_util.m:
compiler/erl_rtti.m:
compiler/exprn_aux.m:
compiler/global_data.m:
compiler/ll_pseudo_type_info.m:
compiler/ml_code_util.m:
compiler/opt_debug.m:
compiler/proc_gen.m:
compiler/prog_rep.m:
compiler/rtti_out.m:
compiler/unify_gen.m:
	Conform to the changes above.

tests/debugger/declarative/track_through_catch.exp:
	Expect procedures to be listed in the proper order.

tests/EXPECT_FAIL_TESTS.asm_fast.gc.debug:
tests/EXPECT_FAIL_TESTS.asm_fast.gc.profdeep:
	Add these files to ignore expected failues in these grades.
2009-10-30 03:33:34 +00:00
Paul Bone
4f1bfc2ebc Parallel runtime profiling improvements.
Improve the profiling of the parallel runtime code in two main ways:
	+ Record data for more events.
	+ Record high-precision timing data on x86 machines via the TSC where
	  access to the TSC is available.

Access to the TSC is available via two machine instructions.  RDTSC - read
TSC. and RDTSCP - read TSC and processor ID.  We prefer the latter as a
process migrated between two calls to RDTSC may cause an incorrect time
duration to be calculated (since TSC counts are seldom synchronized).  We
fall back to RDTSC when RDTSCP is not available and gracefully record no
timing information when neither is available.  Availability is detected via
the CPUID instruction, see MR_configure_profiling_timers().

runtime/mercury_context.c:
runtime/mercury_context.h:
	Runtime profiling changes as above.

runtime/mercury_atomic_ops.c:
runtime/mercury_atomic_ops.h:
	Add runtime profiling timing code.
	Add new add and subtract atomic operations.

runtime/mercury_wrapper.c:
	Call the new MR_configure_profiling_timers() procedure to detect the CPU
	and configure access to the TSC.

Mmakefile:
runtime/Mmakefile:
	'mmake tags' at the top level now builds the tags file for the runtime
	directory.
	The tags target in the runtime directory is now marked as PHONY so it is
	generated even if it already exists.
2009-08-16 10:18:36 +00:00
Zoltan Somogyi
bfd123d76a A first step in allowing users to ask the compiler to implement the primitive
Estimated hours taken: 20
Branches: main

A first step in allowing users to ask the compiler to implement the primitive
operations needed for dependent parallel conjunctions *either* as calls to
library/par_builtin (as at present), *or* as inline C code.

The second option should be faster, and should also solve the problem
of the compiler not optimizing away unnecessary calls to par_builtin.get.
The reason was that in the absence of access to the code of par_builtin.get,
simplify.m does not know whether that predicate can loop forever or throw
an exception. The corresponding foreign proc can be marked to show that
it can do neither.

At the moment, the second option doesn't work, but debugging the problem
should be simpler once this diff is installed. This is due to the change
in the names of the primitive operations to satisfy the readability demands
of the paper describing dependent AND-parallelism.

This diff passes bootcheck in asm_fast.gc.par with no new test case failures.

runtime/mercury_par_builtin.[ch]:
	New module that contains definitions of the types and operations
	that implement dependent parallel conjunctions.

	The content of this module is copied over from library/par_builtin.m,
	modified slightly for definition as macros.

runtime/mercury_types.h:
	Move the definition of MR_Future here, to define the type name even if
	the structure is not defined (since it is defined and referred to only
	in some grades).

runtime/mercury_imp.h:
	#include the new module.

runtime/Mmakefile:
	Add the new module.

library/par_builtin.m:
	Refer to the definitions in runtime/mercury_par_builtin.h.

	Rename the operations here to make their names meaningful *without*
	module qualification.

compiler/options.m:
	Add the option --no-inline-par-builtins.

	Put some help messages in an order consistent with the rest of the
	module.

compiler/builtin_lib_types.m:
	Move the definition of the future_type here from dep_par_conj.m,
	since the definitions of other similar types are here.

compiler/dep_par_conj.m:
	Use foreign_procs instead of calls for parallel builtins unless
	--no-inline-par-builtins is given.

compiler/prog_data.m:
	Add a new foreign_proc attribute, which (for now) can be put on
	a foreign_proc only by the compiler, not the programmer.
	It is used by dep_par_conj.

compiler/add_pragma.m:
compiler/ml_code_gen.m:
	Handle the new attribute.

compiler/mercury_to_mercury.m:
	Write out the attribute for HLDS dumps, even though it cannot (yet)
	be read back in.

compiler/goal_util.m:
	Fix some comments.

mdbcomp/program_representation.m:
	Conform to the changes in the names of predicates.
2009-06-11 08:28:32 +00:00
Julien Fischer
5c49b5dac9 Add support for thread-local backjumping in grades that support concurrency.
Estimated hours taken: 7
Branches: main

Add support for thread-local backjumping in grades that support concurrency.

library/backjump.m:
	Shift the C definition of backjump handlers and choice ids into the
	runtime.  This is needed because MR_Context now refers to them and
	the runtime should not depend on the library.

	Delete the XXX comment regarding pred_is_external/3.  (This has been
	fixed below.)

runtime/mercury_backjump.h:
runtime/mercury_backjump.c:
	New module that defines those parts of the backjumping support that
	the runtime requires access to.

	In high-level C .par grades make the global state required by
	backjumping thread-specific.

	Conform to the usual coding conventions in the runtime in the new
	versions of the data structures that were originally in backjump.m.

	Rename ML_Choice_Id to MR_BackJumpChoiceId, the latter is less
	ambiguous.

runtime/mercury_context.h:
runtime/mercury_context.c:
	In low-level C grades add two extra fields to the MR_Context structure
	to hold the global state required by backjumping.

	In high-level C .par grades initialise the the thread-specific data that
	is used to store the backjump global state at program startup.

	Reformat a function prototype.

runtime/mercury_thread.h:
	Reformat a function prototype.

runtime/Mmakefile:
	Include the new files.

mdbcomp/program_representation.m:
	Update pred_is_external/3 to include backjump.builtin_choice_id/1
	and backjump.builtin_backjump/1.

tests/hard_coded/Mmakefile:
tests/hard_coded/tl_backjump_test.m:
tests/hard_coded/tl_backjump_test.exp:
	Test thread-local backjumping.

tests/hard_coded/tl_backjump_test.exp2:
	Expected output for the above test case for grades in which spawn/3
	does not work.
2008-03-19 05:30:01 +00:00
Peter Wang
fa80b9a01a Make the parallel conjunction execution mechanism more efficient.
Branches: main

Make the parallel conjunction execution mechanism more efficient.

1. Don't allocate sync terms on the heap.  Sync terms are now allocated in
the stack frame of the procedure call which originates a parallel
conjunction.

2. Don't allocate individual sparks on the heap.  Sparks are now stored in
preallocated, growing arrays using an algorithm that doesn't use locks.

3. Don't have one mutex per sync term.  Just use one mutex to protect
concurrent accesses to all sync terms (it's is rarely needed anyway).  This
makes sync terms smaller and saves initialising a mutex for each parallel
conjunction encountered.

4. We don't bother to acquire the global sync term lock if we know a parallel
conjunction couldn't be executing in parallel.  In a highly parallel program,
the majority of parallel conjunctions will be executed sequentially so
protecting the sync terms from concurrent accesses is unnecessary.


par_fib(39) is ~8.4 times faster (user time) on my laptop (Linux 2.6, x86_64),
which is ~3.5 as slow as sequential execution.


configure.in:
	Update the configuration for a changed MR_SyncTerm structure.

compiler/llds.m:
	Make the fork instruction take a second argument, which is the base
	stack slot of the sync term.

	Rename it to fork_new_child to match the macro name in the runtime.

compiler/par_conj_gen.m:
	Change the generated code for parallel conjunctions to allocate sync
	terms on the stack and to pass the sync term to fork_new_child.

compiler/dupelim.m:
compiler/dupproc.m:
compiler/exprn_aux.m:
compiler/global_data.m:
compiler/jumpopt.m:
compiler/livemap.m:
compiler/llds_out.m:
compiler/llds_to_x86_64.m:
compiler/middle_rec.m:
compiler/opt_debug.m:
compiler/opt_util.m:
compiler/reassign.m:
compiler/use_local_vars.m:
	Conform to the change in the fork instruction.

compiler/liveness.m:
compiler/proc_gen.m:
	Disable use of the parallel conjunction operator in the compiler as
	older versions of the compiler will generate code incompatible with
	the new runtime.

runtime/mercury_context.c:
runtime/mercury_context.h:
	Remove the next pointer field from MR_Spark as it's no longer needed.

	Remove the mutex from MR_SyncTerm.  Add a field to record if a spark
	belonging to the sync term was scheduled globally, i.e. if the
	parallel conjunction might be executed in parallel.

	Define MR_SparkDeque and MR_SparkArray.

	Use MR_SparkDeques to hold per-context sparks and global sparks.

	Change the abstract machine instructions MR_init_sync_term,
	MR_fork_new_child, MR_join_and_continue as per the main change log.

	Use a preprocessor macro MR_LL_PARALLEL_CONJ as a shorthand for
	!MR_HIGHLEVEL_CODE && MR_THREAD_SAFE.

	Take the opportunity to clean things up a bit.

runtime/mercury_wsdeque.c:
runtime/mercury_wsdeque.h:
	New files containing an implementation of work-stealing deques.  We
	don't do work stealing yet but we use the underlying data structure.

runtime/mercury_atomic.c:
runtime/mercury_atomic.h:
	New files to contain atomic operations.  Currently it just contains
	compare-and-swap for gcc/x86_64, gcc/x86 and gcc-4.1.

runtime/Mmakefile:
	Add the new files.

runtime/mercury_engine.h:
runtime/mercury_mm_own_stacks.c:
runtime/mercury_wrapper.c:
	Conform to runtime changes.

runtime/mercury_conf_param.h:
	Update an outdated comment.
2007-10-11 11:45:22 +00:00
Zoltan Somogyi
0fcd954631 Implement the runtime system for region-based memory management.
Estimated hours taken: 50 by quan, 8 by zs
Branches: main

Implement the runtime system for region-based memory management. This includes
the implementation of regions, region instructions and support for
backtracking.

Support for backtracking deals with preventing the destruction of backward
live regions and provides instant reclaiming of space in regions when
backtracking reaches a resume point. This support now exploits the data
in rbmm_goal_info structures. The mechanisms are documented in the
papers/rbmm module of the Mercury repository.

compiler/code_info.m:
	Change the option to control the addition of region operations from
	use_region to region_analysis so that no region operations are
	introduced when compiling a compiler in .rbmm grade. This is temporary,
	as is the re-adding of --region-analysis option.

	Make use of rbmm_goal_info when generating backtrack-supporting code
	for commit operations.

compiler/commit_gen.m:
	Make use of rbmm_goal_info when generating backtrack-supporting code.

compiler/disj_gen.m:
	Make use of rbmm_goal_info when generating semidet disjunction.
	Correct one error so that use_region_disj_later is not generated in
	the code for the first disjunct.

compiler/ite_gen.m:
	Make use of rbmm_goal_info.

compiler/options.m:
	Modify the size of disj_protect(ion) to 1 instead of 2.

library/region_builtin.m:
	Change the region builtins to call to the correct region operations
	in the region runtime system.

	Add a predicate to print out profiling information for region-based
	memory management.

runtime/mercury_region.h
runtime/mercury_region.c
	New files containing the implementation of the region runtime system.

	This runtime system supports its own profiling and debugging messages,
	which can be turned on and off via the MR_RBMM_PROFILING and
	MR_RBMM_DEBUG flags.

	Note that these files are still in a state of flux.

runtime/mercury_types.h:
	Add typedefs needed by declarations in mercury_region.h.

runtime/mercury_conf_paramh:
	Document MR_RBMM_PROFILING and MR_RBMM_DEBUG.

runtime/mercury_imp.h:
	#include mercury_region.h in rbmm grades.

runtime/Mmakefile:
	Link the region runtime system into the runtime system of Mercury.

tests/tabling/Mmakefile:
	Avoid accidental matches on the "mm" in "rbmm".
2007-10-09 07:59:55 +00:00
Peter Ross
22c5b49792 Initial checkin which is all the scaffolding needed to
Estimated hours taken: 4
Branches: main

Initial checkin which is all the scaffolding needed to
support the new source to source mercury debugger (ssdb).

The main addition in this change is the ssdb directory,
which will contain the mer_ssdb library.

Mmake.workspace:
Mmakefile:
configure.in:
	Handle the new ssdb directory.

compiler/options.m:
	Add the --ssdb and --source-to-source-debug options.

compiler/mercury_compile.m:
	Add the ssdb pass (it does nothing at the moment).

compiler/modules.m:
	Implicitly import ssdb_builtin when compiling with --ssdb.

mdbcomp/prim_data.m:
	Handle the ssdb module.

ssdb/Mercury.options:
ssdb/Mmakefile:
ssdb/SSDB_FLAGS.in:
ssdb/.mgnuc_copts:
ssdb/.mgnuc_opts:
ssdb/RESERVED_MACRO_NAMES:
	Build system for ssdb directory.

ssdb/mer_ssdb.m:
ssdb/ssdb.m:
	The operations which are needed by the source to source
	debugger.

tools/bootcheck:
	Changes to the bootcheck script to handle the new ssdb module.



browser/Mmakefile:
bytecode/Mmakefile:
library/Mmakefile:
mdbcomp/Mmakefile:
runtime/Mmakefile:
trace/Mmakefile:
	Add the ALLOW_SSDB_PREFIX rules.
2007-10-03 12:11:59 +00:00
Julien Fischer
853622ad87 Shift most of the STM runtime into the Mercury runtime.
Estimated hours taken: 12
Branches: main

Shift most of the STM runtime into the Mercury runtime.
Rename a lot of the types and functions used by the STM runtime.
Various other fixes and improvements to the STM runtime.

library/exception.m:
	Add a new version of try_stm/4 that is intended for use within
	atomic blocks by user code.  This version filters out and rethrows
	rollback exceptions.

	Rename the existing try_stm/4 to unsafe_try_stm/4.

library/stm_builtin.m:
	Move all the STM runtime support from this module into the
	Mercury runtime.  The foreign_procs in this module now just
	forward their work to the appropriate function or macro there.

	Rename most of the types and functions associated with STM
	so that they better conform to our coding standards.

	Add a unit dummy type for use with atomic blocks that have no
	outputs, for example atomically swapping the values of two
	transaction variables.  This is needed because the call to
	unsafe_try_stm introduced by the source-to-source transformation
	still has to return a value if it succeeds.

runtime/mercury_stm.h:
runtime/mercury_stm.c:
	New files containing the runtime support for STM that was in
	library/stm_builtin.m

	Define thread identity for the low-level C grades.  In such
	grades it just the context address.

	Add a macro that returns the identity of the (Mercury) thread that
	is currently executing.  (The implementation of wait queues will
	need this information.)

runtime/mercury_context.c:
	At program startup initialise the STM lock.

runtime/mercury_conf_param.h:
	Document the macro MR_STM_DEBUG which will be used to
	enable low-level debugging of the STM runtime.

runtime/Mmakefile:
	Add the new files.
2007-09-13 04:40:52 +00:00
Peter Wang
7fa0dff1b5 Add more documentation for the Erlang backend.
Estimated hours taken: 6
Branches: main

Add more documentation for the Erlang backend.

Make it possible to configure and install the Erlang backend without too
much manual tweaking.

NEWS:
	Mention the Erlang backend.

README.Erlang:
	Add installation and other notes for Erlang.

doc/reference_manual.texi:
doc/user_guide.texi:
	Add documentation for Erlang.

aclocal.m4:
configure.in:
	Check that the bootstrap compiler knows about the
	builtin_compound_{eq,lt} builtins, and understands
	--erlang-native-code.

	Make configure check for Erlang tools.

	Add configure --enable-erlang-grade option.  Erlang support
	is disabled by default.

scripts/Mercury.config.in:
	Add `--erlang-compiler <erl>' and `--erlang-interpreter <erlc>'
	options to be set by configure.

analysis/ANALYSIS_FLAGS.in:
compiler/COMP_FLAGS.in:
mdbcomp/MDBCOMP_FLAGS.in:
	Add `--erlang-include-directory <dir>/Mercury/hrls' options so that
	the compiler can find Erlang header files from other subdirectories.

compiler/Mercury.options:
library/Mercury.options:
	Work around bugs in the HiPE compiler when compiling two modules.

	Delete the workaround that was necessary while bootstrapping
	builtin_compound_{eq,lt}.

compiler/options.m:
	Add notes that two options to check that the compiler is recent enough
	won't be recognised because they begin "no-" prefixes, and we have
	to use "--no-no-" instead.

compiler/options_file.m:
	Support ERLANG_FLAGS, EXTRA_ERLANG_FLAGS variables in options files to
	be the same as passing --erlang-flags.

browser/Mmakefile:
compiler/Mmakefile:
deep_profiler/Mmakefile:
library/Mmakefile:
mdbcomp/Mmakefile:
profiler/Mmakefile:
runtime/Mmakefile:
slice/Mmakefile:
trace/Mmakefile:
	Make the build system do the same things in the Erlang grade as for
	the IL and Java grades.

scripts/final_grade_options.sh-subr:
scripts/parse_grade_options.sh-subr:
	Make these scripts know about the erlang grade so that parts of the
	build system won't abort on seeing it.
2007-07-20 01:22:06 +00:00
Jonathan Morgan
665ea0786c Removed support for Managed C++ as a foreign language for the IL backend.
Estimated hours taken: 3
Branches: main

Removed support for Managed C++ as a foreign language for the IL backend.
This is being removed for the following reasons:
* It is only supported by Microsoft, making it harder to use code
using it with other CIL platforms (e.g. Mono).
* It is not used in any of the standard library (only C# and IL are used).
* Removing it will simplify the dependencies and the build process.
* Microsoft have deprecated it in favour of C++/CLI.

NEWS:
	Mentioned the change.

aclocal.m4:
	Remove checks for the Microsoft.NET C++ compiler.

compiler/globals.m:
	Delete Managed C++ from the set of supported languages.

compiler/mlds_to_managed.m:
	Remove support for Managed C++ code generation.

compiler/*.m:
	Remove all references to Managed C++.

runtime/Mmakefile:
runtime/mercury_mcpp.h:
	Remove the Managed C++ part of the Mercury runtime.

runtime/mercury_il.il:
runtime/mercury_typeclass_info.h:
runtime/mercury_type_info.h:
	Remove all references to Managed C++, including instructions to keep
	certain parts in sync with Managed C++ part of the runtime.

doc/reference_manual.texi:
	Remove the Managed C++ sections in the Foreign Language Interface
	chapter.

doc/user_guide.texi:
	Remove the documentation of Managed C++ related flags.

library/Mmakefile:
	Remove Managed C++ flag settings.

library/io.m:
	Remove commented out Managed C++ code.

library/list.m:
	Change a comment referring to Managed C++ to refer to C# instead.

scripts/Mmake.rules:
scripts/Mmake.vars.in:
	Remove all rules and variables for Managed C++ from mmake.

tests/hard_coded/foreign_import_module.m:
tests/hard_coded/foreign_import_module_2.m:
tests/hard_coded/foreign_proc_make.m:
tests/hard_coded/redoip_clobber.m:
	Replace Managed C++ code with C# code in the relevant tests.
2007-07-14 02:33:27 +00:00
Simon Taylor
9c650e1d83 Improvements for bitmap.m, to make it useable as a general container
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.
2007-02-13 01:59:04 +00:00
Zoltan Somogyi
b61ea9de44 Implement a large chunk of the code that was previously missing for .mmos
Estimated hours taken: 20
Branches: main

Implement a large chunk of the code that was previously missing for .mmos
grades. The system now correctly computes several answers for the tc_minimal
test case, before going into an infinite loop (since the code for recognizing
the absence of further solutions is not yet there).

Significantly improve the infrastructure for debugging such changes.

compiler/table_gen.m:
	Complete the mmos transformation.

compiler/proc_gen.m:
	Handle the special return requirements of mmos generators, which must
	return not to a caller (since each generator is the root of its own
	SLD tree), but to a consumer in another SLD tree that is waiting for an
	answer.

compiler/hlds_pred.m:
	Provide a mechanism whereby table_gen.m can communicate to proc_gen.m
	the requirement for this special return.

compiler/trace_gen.m:
	When generating events, include the port and the goal path in a
	comment. This makes the generated C code significantly easier to
	understand.

compiler/layout_out.m:
	Export a function for trace_gen.m to use.

compiler/hlds_goal.m:
	Change goal_path_to_string to a function to make it easier to use.

compiler/*.m:
	Conform to the change to goal_path_to_string.

runtime/mercury_context.[ch]:
	In .mmos grades, include the current debugger call sequence number,
	depth, and event number in contexts, to be saved and loaded with
	the contexts. This allows each context to have its own separate
	sequence of events.

	This capability depends not directly on the grade, but on the macro
	MR_EXEC_TRACE_INFO_IN_CONTEXT. For now, this is defined only in .mmos
	grades, but in future, it may be useful in other grades as well.

runtime/mercury_conf_param.h:
	Define and document MR_EXEC_TRACE_INFO_IN_CONTEXT.

runtime/mercury_mm_own_stacks.[ch]:
runtime/mercury_tabling_preds.h:
	Implement some predicates needed by the own stack transformation.
	Implement the code for generators returning answers to consumers,
	and the code for consumers scheduling generators when they need
	more answers. At the moment, the code for detecting when generators
	depend on each other is not yet written.

	Provide better facilities for debugging own stack minimal model grades.

	Fix a cut-and-paste bug (wrong macro name guarding the handwritten
	C module).

runtime/Mmakefile:
	Rebuild only what needs to be rebuilt when mercury_tabling_preds.h
	changes.

runtime/mercury_label.[ch]:
	Add a utility function for returning the name of an arbitrary label
	(internal or entry).

	Rename some fields to give them MR_ prefixes.

	Always define the functions for recording both entry and internal
	labels, even if they are not called from most modules, since they
	may be called from a few handwritten modules in the runtime.

	Rename a function to avoid a clash with the name of a macro,
	and thus allow the change to mercury_goto.h.

runtime/mercury_goto.h:
	Fix a bug with MR_init_entry_an. This macro was supposed to always
	insert the entry label that is its argument into the entry table,
	but instead of calling the function it was meant to call, it called
	a macro that could be (and usually way) defined to expand to nothing.

	The fix is to call the function a different name than the macro,
	and to call the function, not the macro.

runtime/mercury_wrapper.c:
	In own stack minimal model grades, create a main context separate
	from the current context, since the current context may be needed
	to hold a generator's state. Make MR_eng_this_context point to
	this context.

	Register all labels in the debugging variants of minimal model grades.

runtime/mercury_accurate_gc.c:
runtime/mercury_agc_debug.c:
runtime/mercury_debug.c:
library/exception.m:
	Conform to the change to runtime/mercury_label.h.

runtime/mercury_stack_trace.c:
	Conform to the change to runtime/mercury_label.h.

	Document the link to trace/mercury_trace_internal.c.

trace/mercury_trace.[ch]:
trace/mercury_trace_cmd_forward.c:
	Split the GOTO command into two: STEP and GOTO. STEP always stops
	at the next event (without any test), even if it is in a different
	context (and possibly with a lower event number than the immediately
	previous event, since the event numbers in different contexts are
	not related). As before, GOTO always goes to the specified event
	number, but in .dmmos grades it can now be told that this event number
	should be matched only in a specified context. The specification is
	done by an extra argument specifying the short name of the context's
	generator; the ansence of such an argument means the main context.

trace/mercury_trace_cmd_internal.c:
	In own stack grades, when the current context is that of a generator,
	print the subgoal the generator is working on before the event number,
	call depth, call sequence number and the rest of the event report.

	Document the link to runtime/mercury_stack_trace.c, which has similar
	code.

trace/mercury_trace_cmd_external.c:
trace/mercury_trace_cmd_declararive.c:
	Use the STEP command where GOTO was used for this simpler job,
	since this is (very slightly) faster.

trace/mercury_trace_cmd_developer.c:
	Fix some bugs with handling own stack tables.

doc/user_guide.texi:
	Document the new functionality of the goto mdb command. The
	documentation is commented out, since .mmos grades are for developers
	only at the moment.

tools/lmc.in:
	Turn off C optimizations when C debugging is enabled. For some reason,
	the default value of --cflags-for-debug does not include -O0.
2007-01-03 05:17:21 +00:00
Julien Fischer
26de67a4c4 Remove support for non-grade specific .init files.
Estimated hours taken: 0.5
Branches: main

Remove support for non-grade specific .init files.

browser/Mmakefile:
runtime/Mmakefile:
scripts/Mmake.rules:
compiler/make.program_target.m:
	Don't install the .init files in the non-grade specific location.
2006-12-04 01:33:29 +00:00
Julien Fischer
3ace02fd26 A side effect of the introduction of trace goals is that .init files are
Estimated hours taken: 10
Branches: main

A side effect of the introduction of trace goals is that .init files are
now grade dependent.  Consider a module that contains the following
trace goal:

	trace [ compile_time(grade(debug)),
		run_time(env("FOO"))
	] (
		...
	),

In a debug grade the .init file for a library containing that module will
include the following directive:

	ENVVAR FOO

In a non-debug grade it won't.  At the moment which version of the .init
file is actually installed depends upon which grade was the first to
be built.  This can result in linker errors if the wrong grade is used
with the wrong .init file.

There are two possible fixes.  (1) always output ENVVAR directives
regardless of whether the compile time conditions of the trace goals to
which they are attached are true or not.  (2) build grade specific .init
files and install them in grade specific locations.

The following diff implements the first stage of (2).  For each grade in
which a library is to be installed we create a grade specific .init file
and then install it in a grade specific location, e.g.
`$(INSTALL_PREFIX)/lib/mercury/modules/<grade>'.  (For bootstrapping
purposes .init files are currently still installed in the old location
as well.)

After this change has been installed on our machines I will add the
second part of this change which modifies the compiler to look for the
.init files in the new grade specific locations.  The final part of the
change will then remove support for installing .init files in the old
location.)

scripts/Mmake.vars.in:
	Add a variable that holds the name of a grade specific directory
	in which to install .init files.

scripts/Mmake.rules:
	Add a rule to install the .init files in a grade specific location.

browser/Mmakefile:
mdbcomp/Mmakefile:
runtime/Mmakefile:
	Change the dependencies on the library installation targets so
	that installing a library causes the .init files to be built and
	installed.
	(Currently this dependency is on the install target, which means
	that the install_init rule is only invoked once, rather than
	every time a grade is built.)

	Install the .init files for these libraries in grade specific
	locations.  (For bootstrapping purposes they are currently also
	installed in the old location.)

runtime/Mmakefile:
	Remove the code that deletes runtime.init if it exists.
	(Anyone who has a Mercury installation old enough for this to
	be a problem is going to encounter more serious problems than
	the runtime being initialized twice.)

	Unrelated change: remove some duplicate entries from the list
	of header files.

compiler/make.program_target.m:
	Have mmc --make install the .init files in a grade specific location.
	(They are also still installed in the old location.)

NOTE: the `XXX trace goal fix.' comments are placeholders for
things that need to be changed during the latter stages of this change.
2006-11-23 04:08:55 +00:00
Julien Fischer
dea21866cf Conform to the recent change in the handling of ranlib flags.
Estimated hours taken: 0.2
Branches: main, release

boehm_gc/Mmakefile:
runtime/Mmakefile:
trace/Mmakefile:
	Conform to the recent change in the handling of ranlib flags.
2006-11-15 08:24:43 +00:00
Zoltan Somogyi
74ce85d476 Provide a mechanism for collecting statistics about tabling operations,
Estimated hours taken: 60
Branches: main

Provide a mechanism for collecting statistics about tabling operations,
and provide a much more convenient mechanism for resetting tables.

Since it would too complex to do this while preserving the capability
of setting --tabling-via-extra-args to no, eliminate that capability
and the option. That option was useful only for measurements of the
performance boost from setting --tabling-via-extra-args to yes in any case,
so users lose no functionality.

Previously, the only way to debug the low level details of the tabling
mechanism was to build a runtime with a specific C macro (MR_TABLE_DEBUG)
and link with that runtime; this was cumbersome. Change that so that
every one of the debuggable tabling macros has a bool argument that says
whether debugging is enabled or not. The compiler can then set this to
MR_TRUE if the new option --table-debug is given, and to MR_FALSE otherwise.
If set to MR_FALSE, the C compiler should optimize away the debug code,
with zero impact on program size or speed.

Since these changes to macros require nontrivial bootstrapping, which we don't
want to do unnecessarily, modify the interface of the tabling macros as
required to support size limits on tables. This diff also implements the
parsing of size limit specifications on tables, but does not implement them
yet; that is for a future change.

To make the syntax simpler, this diff deletes the free-standing fast_loose_memo
pragma. The same functionality is now available with a fast_loose annotation
on an ordinary memo pragma.

Make a bunch of changes to improve readability and maintainability
in the process. These mostly take the form of renaming ambiguous and/or
not sufficiently expressive function symbols.

runtime/mercury_stack_layout.h:
runtime/mercury_tabling.h:
	Move the description of structure of tables from mercury_stack_layout.h
	to mercury_tabling.h, since we now need it for statistics even if
	execution tracing is not enabled.

	Modify those data structures to have room for the statistics.

	Don't distinguish "strict", "fast_loose" and "specified" memoing
	as separate eval methods; treat them as just different kinds
	of the same eval method: "memo".

	Remove underscores from the names of some types that the style guide
	says shouldn't be there.

runtime/mercury_tabling_preds.h:
runtime/mercury_tabling_macros.h:
	Modify the approach we use for macros that implement the predicates
	of library/table_builtin.m. Instead of selecting between debug and
	nondebug based on whether MR_TABLE_DEBUG is defined or not, add
	an explicit argument controlling this to each debuggable macro.
	The advantage of the new arrangement is that it scales. Another
	argument controls whether we are computing statistics (and if yes,
	where do we put it), and a third argument controls whether we maintain
	back links in the tries and hash tables (this last argument is present
	but is ignored for now).

	Since the values of the arguments will be known when the .c files
	containing calls to these macros are compiled, we pay the space and
	time cost of debugging, statistics gathering and the maintenance of
	back links if and only we need the revelant functionality.

	Provide macros for limited backward compatibility with the old set
	of macros; these allow workspaces created by old compilers to work
	with the new macros in the runtime. The old macros followed the
	naming scheme MR_table_*, the new ones are named MR_tbl_*.

runtime/mercury_table_int_fix_index_body.h:
runtime/mercury_table_int_start_index_body.h:
runtime/mercury_table_type_body.h:
	New files containing parts of the old mercury_tabling.c. Each of these
	files contains the body of the functions that used to be in
	mercury_tabling.c. The new mercury_tabling.c #includes each of these
	files more than once, to provide more than one variant of the old
	function. These variants differ in aspects such as whether debugging
	is enabled or statistics is being collected. Each variant therefore
	incurs only the time costs it needs to. (We pay the space cost of
	having all these variants all the time of course, but this cost
	is negligible.)

runtime/mercury_tabling_stats_defs.h:
runtime/mercury_tabling_stats_nodefs.h:
runtime/mercury_tabling_stats_undefs.h:
	New files that serve as wrappers around the newly #included files,
	controlling how they handle statistics.

runtime/mercury_tabling.c:
	Delete functions now in the new files, and #include them instead.
	Delete the data structures that used to contain summary statistics;
	the new approach keeps statistics in compiler-generated,
	procedure-specific data structures.

runtime/mercury_trace_base.c:
	Use the new versions of the tabling macros to access the I/O table.

runtime/mercury_type_info.h:
	Update some documentation for the movement of code out of
	mercury_tabling.c.

runtime/mercury_types.h:
	Provide forward declarations of the identifiers denoting the new types
	in mercury_tabling.h.

runtime/mercury_grade.h:
	Increment the exec trace version number, since we have changed
	a part of the exec trace structure.

runtime/mercury_bootstrap.h:
	Fix some temporary issues that arise from some renames above.

runtime/mercury_hash_lookup_or_add_body.h:
	Fix comment.

runtime/Mmakefile:
	Mention the new files and the dependencies that involve them.

library/table_builtin.m:
	Provide a type for representing statistics and a predicate for
	printing statistics.

	Use the updated versions of the macros in
	runtime/mercury_tabling_preds.h.

compiler/prog_item.m:
	Change representation of tabling pragmas to allow room for the new
	attributes.

	Allow an item to be marked as being generated by the compiler
	as a result of a pragma memo attribute. We use this for the reset
	and statistics predicates.

compiler/mercury_to_mercury.m:
	Write out the new attributes of the tabling pragma.

compiler/prog_data.m:
compiler/hlds_data.m:
	Change the cons_id that used to refer to a procedure's call table root
	to refer to the entirety of the new data structure now containing it.
	The compiler now needs a way to refer to the other components of this
	new data structure, since it contains the statistics.

	As in the runtime, don't distinguish "strict", "fast_loose" and
	"specified" memoing as separate eval methods; treat them as just
	different kinds of the same eval method: "memo".

	Rename some of the uses of the function symbols "c", "java", "il".

compiler/hlds_pred.m:
	Add an extra field in proc_infos for storing any tabling attributes.

	Change the existing proc_info field that records information about
	the kinds of arguments of tabled procedures to record the information
	needed by the debugger too. This was needed to allow us to shift all
	the RTTI for procedure-specific tables (as opposed to the RTTI for
	the global I/O table) from mercury_stack_layout.h to mercury_tabling.h
	without duplicating the data (which would be a maintenance problem).

	Reformat some comments to make them easier to read.

compiler/layout.m:
compiler/layout_out.m:
	Delete the part of the exec trace information that used to record
	RTTI for tables, since this information is not generated only as
	part of the debugger data structures anymore.

compiler/prog_io_pragma.m:
	Recognize the updated syntax for tabling pragmas.

compiler/add_pragma.m:
	When processing tabling pragmas for inclusion in the HLDS, create
	any reset and statistics predicates they ask for.

compiler/make_hlds_passes.m:
	Export a predicate now needed by add_pragma.m.

	Handle the new attributes on tabling pragmas

compiler/globals.m:
	Change the function symbols of the types describing backends and
	foreign languages to say what they are. Previously, both types (as well
	as several others) included the function symbol "c"; now, they are
	target_c and lang_c respectively.

compiler/table_gen.m:
	Implement the changes described at the top.

	When passing around varsets and vartypes, pass the arguments in the
	standard order.

compiler/goal_util.m:
compiler/hlds_goal.m:
	When passing around varsets and vartypes, pass the arguments in the
	standard order.

compiler/rtti.m:
	Provide types for representing the runtime's data structures for
	tabling (which are now significantly more complex than a single word)
	and predicates for manipulating them, for use by both the ml and ll
	backends.

compiler/llds.m:
	Replace the comp_gen_c_var type with the tabling_info_struct type,
	which contains the information needed to create the per-procedure
	tabling data structures.

	Replace references to call tables with references to the various
	components of the new tabling data structures.

compiler/llds_out.m:
	Add code to write out tabling_info_structs.

	Delete the code required for the old, hacky way of resetting tables.

	Reorder some code more logically.

compiler/proc_gen.m:
	Generate tabling_info_structs.

compiler/stack_layout.m:
	Don't generate the information now generated in proc_gen.m.

compiler/mlds.m:
	Give mlds_proc_labels their own function symbols, instead of using
	a pair. Rename some other function symbols to avoid ambiguity and add
	expressiveness.

	Provide for the representation of references to the various components
	of the new tabling data structures, and for the representation of their
	types.

compiler/ml_code_gen.m:
	When generating code for a tabled procedure, generate also the data
	structures required for its table.

compiler/rtti_to_mlds.m:
compiler/ml_util.m:
	Move some predicates from rtti_to_mlds.m to ml_util.m, since we
	now also want to call them from ml_code_gen.m.

compiler/name_mangle.m:
	Add some utility predicates.

compiler/options.m:
	Delete the old --allow-table-reset option.

	Add the new --table-debug option.

	Comment out an implementor-only option.

compiler/add_pred.m:
compiler/add_solver.m:
compiler/add_trail_ops.m:
compiler/add_type.m:
compiler/bytecode_gen.m:
compiler/code_gen.m:
compiler/compile_target_code.m:
compiler/complexity.m:
compiler/dependency_graph.m:
compiler/det_report.m:
compiler/export.m:
compiler/fact_table.m:
compiler/foreign.m:
compiler/global_data.m:
compiler/globals.m:
compiler/handle_options.m:
compiler/higher_order.m:
compiler/hlds_code_util.m:
compiler/hlds_data.m:
compiler/hlds_goal.m:
compiler/hlds_out.m:
compiler/inlining.m:
compiler/intermod.m:
compiler/make.dependencies.m:
compiler/make.module_target.m:
compiler/make.program_target.m:
compiler/make.util.m:
compiler/make_hlds_passes.m:
compiler/mercury_compile.m:
compiler/ml_call_gen.m:
compiler/ml_closure_gen.m:
compiler/ml_code_gen.m:
compiler/ml_code_util.m:
compiler/ml_elim_nested.m:
compiler/ml_optimize.m:
compiler/ml_switch_gen.m:
compiler/ml_tailcall.m:
compiler/ml_type_gen.m:
compiler/ml_unify_gen.m:
compiler/mlds_to_c.m:
compiler/mlds_to_gcc.m:
compiler/mlds_to_il.m:
compiler/mlds_to_ilasm.m:
compiler/mlds_to_java.m:
compiler/mlds_to_managed.m:
compiler/modes.m:
compiler/module_qual.m:
compiler/modules.m:
compiler/opt_debug.m:
compiler/opt_util.m:
compiler/polymorphism.m:
compiler/pragma_c_gen.m:
compiler/proc_label.m:
compiler/prog_data.m:
compiler/prog_foreign.m:
compiler/prog_item.m:
compiler/prog_mutable.m:
compiler/prog_out.m:
compiler/prog_rep.m:
compiler/prog_util.m:
compiler/recompilation.version.m:
compiler/size_prof.m:
compiler/special_pred.m:
compiler/switch_util.m:
compiler/transform_llds.m:
compiler/tupling.m:
compiler/type_ctor_info.m:
compiler/unify_gen.m:
	Conform to the changes above, and/or improve some comments.

mdbcomp/prim_data.m:
	Make the names of the function symbols of the proc_label type more
	expressive and less ambiguous.

mdbcomp/prim_data.m:
mdbcomp/mdbcomp.m:
mdbcomp/program_representation.m:
mdbcomp/rtti_access.m:
mdbcomp/slice_and_dice.m:
mdbcomp/trace_counts.m:
	Use . instead of __ as module qualifier.

	Conform to the change to prim_data.m.

browser/declarative_execution.m:
browser/declarative_oracle.m:
browser/declarative_tree.m:
	Conform the change to mdbcomp/prim_data.m.

tests/debugger/Mercury.options:
	Don't specify --allow-table-reset for fib.m, since that option
	doesn't exist anymore.

tests/debugger/fib.m:
	Use the new mechanism for resetting the table.

tests/debugger/print_table.m:
	Use the new syntax for pragma memo attributes.

tests/invalid/specified.{m,err_exp}:
	Use to the new syntax and reset method for pragma memo attributes.
	Test the handling of errors in the new attribute syntax.

tests/tabling/Mercury.options:
	Don't specify --allow-table-reset for specified.m, since that option
	doesn't exist anymore.

tests/tabling/specified.m:
	Use the new syntax for pragma memo attributes, and use the new
	mechanism for resetting tables. We could also use this test case
	for testing the printing of statistics, but the format of that
	output is still not final.

tests/tabling/fast_loose.m:
	Use the new syntax for pragma memo attributes, and use the new
	mechanism for resetting tables.

trace/mercury_trace.c:
trace/mercury_trace_cmd_developer.c:
	Conform to the changes in the RTTI data structures regarding tabling.

	Remove underscores from the names of some types that the style guide
	says shouldn't be there.

library/robdd.m:
	Comment out the tabling pragma until this change is bootstrapped.
	Without this, the conflict between the old calls to macros generated
	by the existing compiler and the new definition of those macros
	in the runtime would cause errors from the C compiler.
2006-06-08 08:20:17 +00:00
Zoltan Somogyi
4124ddf353 Since touching mercury_conf.h's timestamp causes a bunch of files to be
Estimated hours taken: 0.5
Branches: main

configure.in:
runtime/Mmakefile:
	Since touching mercury_conf.h's timestamp causes a bunch of files to be
	recompiled, don't touch mercury_conf.h unless its contents have
	actually changed. Ignore changes in comments only, as in the comment
	about whether the recreation of mercury_conf.h was started from the top
	level directory or the runtime directory.
2006-03-30 06:13:48 +00:00
Julien Fischer
9d8ca0ad37 Remove residual parts of the Aditi backend that weren't deleted the other day.
Estimated hours taken: 1.5
Branches: main

Remove residual parts of the Aditi backend that weren't deleted the other day.

configure.in:
Mmake.common.in:
	Remove support for enabling the Aditi backend.

runtime/mercury_aditi.h:
	Remove this file.

runtime/Mmakefile:
runtime/mercury.h:
runtime/mercury_imp.h:
runtime/mercury_ho_call.[ch]:
runtime/mercury_wrapper.[ch]:
	Delete support for Aditi in the runtime.

scripts/Mmake.rules:
scripts/Mmake.vars.in:
scripts/c2init.in:
scripts/parse_ml_options.sh-subr.in:
	Remove mmake support for building .rlo files, etc.

util/mkinit.c:
	Remove Aditi specific code.

compiler/bytecode_data.m:
compiler/closure_analysis.m:
compiler/code_model.m:
compiler/compile_target_code.m:
compiler/det_analysis.m:
compiler/handle_options.m:
compiler/hlds_goal.m:
compiler/hlds_module.m:
compiler/make.dependencies.m:
compiler/make.m:
compiler/make.module_target.m:
compiler/make.program_target.m:
compiler/make.util.m:
compiler/make_hlds_error.m:
compiler/make_hlds_passes.m:
compiler/mercury_to_mercury.m:
compiler/mlds_to_gcc.m:
compiler/modecheck_call.m:
compiler/modules.m:
compiler/opt_debug.m:
compiler/options.m:
compiler/prog_data.m:
compiler/prog_foreign.m:
compiler/prog_mode.m:
compiler/prog_type.m:
compiler/rtti.m:
compiler/rtti_out.m:
compiler/rtti_to_mlds.m:
compiler/term_errors.m:
compiler/unify_proc.m:
mdbcomp/prim_data.m:
	Remove residual support for Aditi.

library/ops.m:
	Remove the 'aditi_bottom_up' and 'aditi_top_down' operators from the
	ops table.

doc/reference_manual.texi:
doc/user_guide.texi:
	Delete the sections on the Aditi interface.

extras/aditi/*:
	Delete this.
2006-02-24 07:11:21 +00:00
Julien Fischer
20e2d517e2 Commit Sergey Khorev's patch to port Mercury to the ARM architecture.
Estimated hours taken: 0.5 by me (+ unknown by Sergey Khorev)
Branches: main, release

Commit Sergey Khorev's patch to port Mercury to the ARM architecture.

configure.in:
runtime/mercury_regs.h:
runtime/machdeps/arm_regs.h:
	Global registers for ARM.

runtime/Mmakefile:
	Add arm_regs.h to the list of machine dependent headers.

runtime/machdeps/ARM_REGS:
	Add documentation from the gcc source code on what registers
	can be used.

runtime/machdeps/arm_regtest:
	Test what registers we can use on ARM.
2005-12-02 06:53:19 +00:00
Julien Fischer
ecafca0605 Add a file that Ian forgot to add as part of his
Estimated hours taken: 0.5
Branches: main

runtime/Mmakefile:
runtime/mercury_stack_layout.c:
	Add a file that Ian forgot to add as part of his
	change to subterm dependency tracking.
2005-11-03 01:44:13 +00:00
Julien Fischer
8ddffbe399 Undo a recent change by Ian. I'm not sure if this was intentional
Estimated hours taken: 0.1
Branches: main

runtime/Mmakefile:
	Undo a recent change by Ian.  I'm not sure if this was intentional
	(perhaps part of a change that was only partially committed?) but it
	breaks the runtime becuase there is no such file as
	mercury_stack_layout.c.
2005-11-03 00:17:02 +00:00