* libguile/arrays.c (scm_transpose_array)
- Use scm_c_array_rank(), which contains an implicit is_array test.
- Handle the rank 0 case.
* test-suite/tests/arrays.test
- Add test for rank 0 case.
- Add failure test for non array argument.
* libguile/array-map.c (scm_ra_matchp): Refactor logic a bit.
(array_index_map_1, array_index_map_n)
(scm_array_index_map_x): Internally refactor array-index-map! to use
separate implementations for rank 1 versus rank >1 arrays.
* libguile/uniform.c (scm_is_uniform_vector): Replace
scm_is_generalized_vector and scm_generalized_vector_get_handle by
scm_is_array and manual rank check.
(scm_c_uniform_vector_length): Use scm_c_array_length.
(scm_c_uniform_vector_ref): Use scm_c_array_ref_1.
(scm_c_uniform_vector_set): Use scm_c_array_set_1_x.
(scm_uniform_vector_writable_elements): Use scm_array_get_handle, and
assert that the rank is 1.
* test-suite/test/arrays.test: Rename the uniform-vector-ref block to
uniform-vector. Exercise uniform-vector-length and shared arrays
remaining uniform.
Modifications by Andy Wingo <wingo@pobox.com>.
* libguile/vm.c (vm_increase_sp): New interface, to increase the SP to
some new level, possibly expanding the stack.
(vm_push_sp, vm_restore_sp): Intefaces to vm_increase_sp.
(vm_return_to_continuation): Don't throw an error if there's not
enough space; instead, expand.
(vm_reinstate_partial_continuation): Use the new helper.
(return_unused_stack_to_os): Avoid off-by-one error (sp points to
valid memory.)
(scm_call_n): Never write beyond the sp.
* module/system/repl/server.scm (run-server): Remove case that handled
'interrupt' exceptions specially. It is no longer needed since
e6c8e6047e (REPL Server: Don't establish
a SIGINT handler.)
* module/ice-9/boot-9.scm (define-values): Use 'generate-temporaries' to
generate a fresh name for 'dummy', to work around the lack of hygiene
for macro-introduced toplevel identifiers. Blackhole 'dummy' to avoid
keeping garbage alive. Add more comments.
* module/language/cps.scm ($callk): New expression type, for calls to
known labels. Part of "low CPS".
* module/language/cps/arities.scm:
* module/language/cps/closure-conversion.scm:
* module/language/cps/compile-bytecode.scm:
* module/language/cps/dce.scm:
* module/language/cps/dfg.scm:
* module/language/cps/effects-analysis.scm:
* module/language/cps/simplify.scm:
* module/language/cps/slot-allocation.scm:
* module/language/cps/verify.scm: Adapt call sites.
* libguile/vm-engine.c (call-label, tail-call-label): New instructions.
Renumber the rest; this is an ABI change.
* libguile/_scm.h (SCM_OBJCODE_MINOR_VERSION):
* module/system/vm/assembler.scm (*bytecode-minor-version*): Bump.
* doc/ref/compiler.texi (CPS in Guile): Document $callk.
* libguile/gc.c: Remove code that would try to run GC more frequently as
the process image size was increasing. Before, it was often the case
that the heap was the main component of image size, but with
expandable stacks and statically allocated data that is no longer
true. Also, once scm_gc_register_allocation was incorporated, we
don't need to be so conservative any more. It seems this code was
simply causing too many gc's to run. Removing it improves some
micro-benchmarks; time will tell.
* libguile/bdw-gc.h: Remove a needless compatibility hack.
* libguile/gc-inline.h: New file, implementing thread-local freelists
providing faster allocation if we already have a scm_i_thread*
pointer. Based on gc_inline.h from libgc.
* libguile/threads.h (scm_i_thread): Add freelists here.
* libguile/threads.c (guilify_self_1, guilify_self_2): Initialize
freelists.
* libguile/vm.c: Include gc-inline.h.
* libguile/vm-engine.c: Rename current_thread to thread. Use
scm_inline_cons instead of scm_cons, scm_inline_cell instead of
scm_cell, and scm_inline_words instead of words.
* libguile/vm.h (struct scm_vm): Reorder fields. Add "sp_max_since_gc"
field.
* libguile/vm-engine.c (ALLOC_FRAME, RESET_FRAME):
* libguile/vm.c (vm_return_to_continuation)
(vm_reinstate_partial_continuation, scm_call_n): In places where we
could increase the stack height, update sp_max_since_gc.
(vm_expand_stack): Relocate sp_max_since_gc on expansion.
(scm_bootstrap_vm): Record the page size using gnulib's getpagesize.
(return_unused_stack_to_os): New routine, run when marking stacks.
* libguile/vm-engine.c: Remove VM_HANDLE_INTERRUPTS before entering a
subr or foreign call. The bytecode stub will have already done so
when entering the stub, and the return sequence handles doing so
before returning.
* module/system/vm/trace.scm (print-return): Remove frame argument.
(trace-calls-to-procedure, trace-calls-in-procedure): Adapt callers.
* module/system/vm/traps.scm (trap-in-procedure, trap-frame-finish):
(trap-calls-to-procedure): Since the pop continuation hook is now
called after the continuation is popped, we need to check the right
frame. Fixes tail-calls in the trace root, and probably other things.
* module/language/cps/slot-allocation.scm (lookup-dead-slot-map)
(allocate-slots): For each non-tail call in a function, compute the
set of slots that are dead after the function has begun the call.
* module/language/cps/compile-bytecode.scm (compile-fun): Emit the
`dead-slot-map' macro instruction for non-tail calls.
* module/system/vm/assembler.scm (<asm>): Add `dead-slot-maps' member.
(dead-slot-map): New macro-instruction.
(link-frame-maps, link-dynamic-section, link-objects): Write dead
slots information into .guile.frame-maps sections of ELF files.
* module/system/vm/elf.scm (DT_GUILE_FRAME_MAPS): New definition.
* libguile/loader.h:
* libguile/loader.c (DT_GUILE_FRAME_MAPS, process_dynamic_segment):
(load_thunk_from_memory, register_elf): Arrange to parse
DT_GUILE_FRAME_MAPS out of the dynamic section.
(find_mapped_elf_image_unlocked, find_mapped_elf_image): New helpers.
(scm_find_mapped_elf_image): Refactor.
(scm_find_dead_slot_map_unlocked): New interface.
* libguile/vm.c (scm_i_vm_mark_stack): Mark the hottest frame
conservatively, as before. Otherwise use the dead slots map, if
available, to avoid marking data that isn't live.
* module/ice-9/boot-9.scm:
* module/ice-9/i18n.scm:
* module/ice-9/poll.scm:
* module/ice-9/popen.scm:
* module/ice-9/r6rs-libraries.scm:
* module/oop/goops.scm:
* module/oop/goops/compile.scm:
* module/oop/goops/dispatch.scm:
* module/srfi/srfi-88.scm:
* module/system/foreign.scm:
* module/texinfo/serialize.scm: Change most uses of 'compile' to
'expand', except where we must avoid it during initial bootstrap
before the module system is loaded. Remove redundant uses of
'compile' where 'expand' is also given. Standardize on the
"(expand load eval)" order of conditions.
* doc/ref/api-macros.texi (Eval When): Explain in detail what each
condition means, including 'expand' which was previously undocumented.
Change the example to use (expand load eval) and recommend that set of
conditions, instead of (compile load eval) which was previously
recommended and shown in the example.
