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Author SHA1 Message Date
Andy Wingo
61a8c9300d Fix race when expanding syntax-parameterize and define-syntax-parameter
* libguile/macros.c (scm_i_make_primitive_macro): Give primitive macros
  a primitive-macro macro-type.
* module/ice-9/psyntax.scm (put-global-definition-hook)
  (get-global-definition-hook): Inline into uses.
  (make-binding): Change format of lexically defined or rebound syntax
  parameters to just be the transformer, not a list of the transformer.
  (resolve-identifier, expand-install-global, expand-body)
  (syntax-parameterize): Adapt to use the variable object (box) holding
  the top-level syntax parameter as the "key" for lookups into the
  lexical environment, instead of a fresh object associated with the
  syntax transformer.
* module/ice-9/psyntax-pp.scm: Regenerate.

Fixes #27476, a horrible race when one thread is expanding a
syntax-parameterize form including uses, and another thread is expanding
the corresponding define-syntax-parameter.  See
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27476#102.
2019-02-22 15:11:29 +01:00
Andy Wingo
c9e052be49 Fix linker bug that could fail to find the shstrtab
* module/system/vm/linker.scm (<linker-object>): Add name field.  This
  allows the linker to find sections by name, notably before having
  found the .shstrtab section.  As there can be multiple sections with
  type SHT_STRTAB, this fixes a bug whereby we could use a section
  name (a strtab index) into an unrelated strtab.  In the past this
  worked because with ASCII identifiers there won't be an exception,
  although it is possible to accidentally mistake a shared string tail;
  but with UTF-8 identifiers, it's possible for a string table index to
  point in the middle of a codepoint, which is likely not valid UTF-8
  and would raise a bug.  Keeping an additional section name field fixes
  this bug.  Adapt all callers to pass a name argument to
  make-linker-object.
  (find-shstrndx): Update to look at the name field.
* module/system/vm/assembler.scm (make-object): Pass name to
  make-linker-object.

Thanks to Daniel Llorens for the test case.
2018-10-08 10:08:33 +02:00
Andy Wingo
39729e8448 Rename $closure to $const-fun
* module/language/cps.scm ($const-fun): Rename from $closure, as we
  always use this now with nfree == 0.
* module/language/cps/closure-conversion.scm:
* module/language/cps/compile-bytecode.scm:
* module/language/cps/contification.scm:
* module/language/cps/cse.scm:
* module/language/cps/dce.scm:
* module/language/cps/devirtualize-integers.scm:
* module/language/cps/effects-analysis.scm:
* module/language/cps/licm.scm:
* module/language/cps/peel-loops.scm:
* module/language/cps/renumber.scm:
* module/language/cps/rotate-loops.scm:
* module/language/cps/simplify.scm:
* module/language/cps/slot-allocation.scm:
* module/language/cps/specialize-numbers.scm:
* module/language/cps/types.scm:
* module/language/cps/utils.scm:
* module/language/cps/verify.scm: Adapt users.
2018-10-03 22:58:45 +02:00
Andy Wingo
4060728e0a Renumber instructions and bump objcode version
* libguile/loader.h (SCM_OBJCODE_MINIMUM_MINOR_VERSION):
  (SCM_OBJCODE_MINOR_VERSION): Bump version.
* module/system/vm/assembler.scm (*bytecode-minor-version*): Bump.
* libguile/vm-engine.c: Rearrange opcodes to be contiguous and in a
  somewhat sensible order.
2018-09-20 11:22:15 +02:00
Andy Wingo
bf31fe4cf6 VM manages hook sets itself
* libguile/vm.h (SCM_VM_ABORT_HOOK): Rename from
  SCM_VM_ABORT_CONTINUATION_HOOK.
* libguile/vm-engine.c (ABORT_HOOK):
* libguile/vm.c (invoke_abort_hook): Adapt to SCM_VM_ABORT_HOOK name
change.
(reset_vm_hook_enabled): New helper.
(VM_ADD_HOOK, VM_REMOVE_HOOK): New helper macros, replacing
VM_DEFINE_HOOK.
(scm_vm_add_abort_hook_x, scm_vm_remove_abort_hook_x)
(scm_vm_add_apply_hook_x, scm_vm_remove_apply_hook_x)
(scm_vm_add_return_hook_x, scm_vm_remove_return_hook_x)
(scm_vm_add_next_hook_x, scm_vm_remove_next_hook_x): New functions,
replacing direct access to the hooks.  Allows us to know in a more
fine-grained way when to enable hooks.
(scm_set_vm_trace_level_x): Use reset_vm_hook_enabled to update the
individual hook_enabled flags.
* module/statprof.scm:
* module/system/vm/coverage.scm:
* module/system/vm/traps.scm:
* module/system/vm/vm.scm: Adapt VM hook users to the new API.
2018-09-14 08:52:24 +02:00
Andy Wingo
b8a557d9a9 Fix bounds on compiler-emitted JIT metadata
* module/system/vm/assembler.scm (link-data): Fix relocation addend for
  JIT data bounds.  I never get this right!
2018-08-20 09:51:56 +02:00
Andy Wingo
3827769aff Add instrumentation to VM builtins
* libguile/intrinsics.h: Add "intrinsic" for handle-interrupts code.
  Unlike the other intrinsics, this one isn't a function.
* libguile/programs.c (try_parse_arity): Add cases for instructions used
  in VM builtins.
  (scm_primitive_call_ip): Return #f if call-ip not found.
* libguile/vm-engine.c (handle-interrupts): Get code from intrinsics.
* libguile/vm.c
* libguile/vm.c (instrumented_code, define_vm_builtins): Add
  instrumentation to the builtins, so that they can be JIT-compiled.
  (INIT_BUILTIN): Remove min-arity setting; the fallback min-arity
  interpreter should figure it out.
  (scm_bootstrap_vm): Call the new define_vm_builtins function.
* libguile/gsubr.c (primitive_call_ip): Return 0 if call IP not found.
  (primitive_subr_idx): Interpret call ip == 0 as not-a-subr.
* module/system/vm/program.scm (program-arguments-alist): Allow a #f
  call-ip.
2018-08-17 08:50:33 +02:00
Andy Wingo
d4abe8bbed Avoid needless 64-bit args on 32-bit machines for some intrinsics
* libguile/intrinsics.h:
* libguile/intrinsics.c (string_set_x): Change to take size_t and u32 as
  args.
  (allocate_words): Change to take size_t as arg.
* libguile/vm.c (expand_apply_argument): Rename from rest_arg_length,
  and also handle the stack manipulation.
* libguile/vm-engine.c (expand-apply-argument): Update for intrinsic
  change.
  (call-scm-sz-u32): Rename from call-scm-u64-u64, as it matches its
  uses and will compile better on 32-bit systems.
* module/system/vm/assembler.scm (define-scm-sz-u32-intrinsic):
  (string-set!): Update for new instrinsic call inst.
* libguile/jit.c (compile_call_scm_sz_u32): Adapt.
2018-08-13 14:30:01 +02:00
Andy Wingo
41100f7786 Merge branch 'master' into lightning
This includes a manual cherry-pick of relevant stable-2.2 commits up to
4c91de3e45.
2018-08-07 12:43:25 +02:00
Mark H Weaver
215617caea Fix R6RS call-with-{input,output}-file to open textual ports.
Fixes <https://bugs.gnu.org/32329>.
Reported and diagnosed by Göran Weinholt <goran@weinholt.se>.

* module/rnrs/io/simple.scm (call-with-input-file)
(call-with-output-file): Use 'open-{input,output}-file' to open the port
in textual mode.  Previously 'open-file-{input,output}-port' was used,
which opened the port in binary mode.
2018-08-07 12:34:43 +02:00
Ludovic Courtès
9da7de45b6 srfi-19: Remove unused procedure.
* module/srfi/srfi-19.scm (date->broken-down-time): Remove.
2018-08-07 12:34:37 +02:00
Ludovic Courtès
c6f70e4b04 Add -Wshadowed-toplevel.
* module/language/tree-il/analyze.scm (shadowed-toplevel-analysis): New
variable.
* module/language/tree-il/compile-cps.scm (%warning-passes): Add it.
* module/system/base/message.scm (%warning-types): Add it.
* test-suite/tests/tree-il.test ("warnings")["shadowed-toplevel"]: New
test prefix.
* module/ice-9/boot-9.scm (%auto-compilation-options): Add it.
* doc/ref/api-evaluation.texi (Compilation): Add 'shadowed-toplevel' and
'macro-use-before-definition'.
2018-08-07 12:34:32 +02:00
Ludovic Courtès
cbc2445eb1 compile: Update copyright year.
* module/scripts/compile.scm (show-version): Update copyright year.
2018-08-07 12:34:22 +02:00
Ludovic Courtès
240cc54659 compile: Improve error message.
* module/scripts/compile.scm (parse-args): Add missing newline in
"unrecognized option" message.
2018-08-07 12:34:17 +02:00
Ludovic Courtès
44cdabd9e3 compile: Add '-x' flag.
* module/scripts/compile.scm (%options, compile): Add '-x'.
* doc/ref/api-evaluation.texi (Compilation): Document it.
2018-08-07 12:34:11 +02:00
Mark H Weaver
448a6f1d3c Make srfi-71 visible through 'cond-expand'.
This is a followup to commit eb90831ce8.

* module/srfi/srfi-71.scm: Add missing 'cond-expand-provide'.
2018-08-07 12:33:25 +02:00
Ludovic Courtès
aec899daf6 build: Really build srfi/srfi-71.scm.
Commit eb90831ce8 added it to the wrong
makefile.

* module/Makefile.am (SOURCES): Add srfi/srfi-71.scm.
* module/srfi/Makefile.am: Remove.  It's a leftover from the 2009 build
system rework in commit 3bb299b3f0.
2018-08-07 12:32:58 +02:00
Ludovic Courtès
2656f37c87 Update copyright years in '--version' and the manual.
* module/ice-9/command-line.scm (version-etc): Change #:copyright-year
to 2018.
* doc/ref/guile.texi: Add 2017 and 2018 to the copyright years.
* configure.ac (GUILE_CONFIGURE_COPYRIGHT): Add 2018.
2018-08-07 12:31:54 +02:00
Ludovic Courtès
12f2bb5262 Serialize accesses to submodule hash tables.
Fixes <https://bugs.gnu.org/30602>.

Previously, when compiling files in parallel like Guix does, threads
would be concurrently inserting, rehashing, and reading the submodule
hash table of module ().  Thus, some threads would sometimes see an
inconsistent state, leading to errors such as:

  Module named (system repl debug) does not exist

* module/ice-9/boot-9.scm (call-with-module-autoload-lock): Move higher
in the file.
(module-name): Use it around call to 'nested-define-module!'.
(resolve-module): Wrap the whole thing in 'call-with-module-autoload-lock'.
2018-08-07 12:31:22 +02:00
Ludovic Courtès
bab01b46ed linker: Don't rely on out-of-range bv-ref exceptions.
* module/system/vm/linker.scm (find-shstrndx): Check whether NAME is
lower than the length of BV; remove 'false-if-exception' around
'string-table-ref' call.
2018-08-07 12:14:10 +02:00
Ludovic Courtès
5f75df03c6 types: Recognize 'scm_t_port_type' and decode port type name.
* module/system/base/types.scm (read-c-string, inferior-port-type): New
procedures.
(inferior-port): Use 'inferior-port-type' to determine the port type.
(cell->object): Rename 'flags+type' to 'flags' in the '%tc7-port' case.
* test-suite/tests/types.test ("opaque objects"): Adjust port testse.
(test-inferior-ports): New macro.
("ports"): New test prefix.
2018-08-07 12:13:45 +02:00
Arun Isaac
e40b5b54ff web: Export http-request.
* module/web/client.scm (request): Rename to http-request, add a
docstring, and export it.
(http-get, http-head, http-post, http-put, http-delete, http-trace,
http-options): Update docstring.
* doc/ref/web.texi (Web Client): Document http-request.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2018-08-07 12:13:19 +02:00
Ludovic Courtès
251202fc90 Make module autoloading thread-safe.
Fixes <https://bugs.gnu.org/31878>.

* module/ice-9/boot-9.scm (call-with-module-autoload-lock): New procedure.
(try-module-autoload): Wrap body in 'call-with-module-autoload-lock'.
* module/ice-9/threads.scm: Set (@ (guile) call-with-module-autoload-lock).
2018-08-07 12:09:12 +02:00
Christopher Allan Webber
26fc11a2ae Add SRFI 71: Extended LET-syntax for multiple values.
* module/srfi/srfi-71.scm: New file.
* module/srfi/Makefile.am: Add it.
* doc/ref/srfi-modules.texi: Document it.
* NEWS: Update.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
2018-08-07 12:08:56 +02:00
Mark H Weaver
8a3cca464e Add copyright header for (language elisp falias), and fix typo.
* module/language/elisp/falias.scm: Add copyright header.
* module/language/elisp/spec.scm: Fix typo in header.
2018-08-07 12:07:27 +02:00
Mark H Weaver
a72e296176 elisp: Fix cross-compilation support.
* module/system/base/target.scm (with-native-target): New exported
procedure.
* module/language/elisp/spec.scm: In the top-level body expression, call
'compile-and-load' within 'with-native-target' to compile native code.
* module/language/elisp/compile-tree-il.scm
(eval-when-compile, defmacro): Compile native code.
2018-08-07 12:07:18 +02:00
Mark H Weaver
9fd1dc2fcc goops: Fix 'instance?' to work on objects that aren't structs.
Fixes <https://bugs.gnu.org/31606>
Reported by Tommi Höynälänmaa <tommi.hoynalanmaa@gmail.com>

* module/oop/goops.scm (instance?): Check that OBJ is a struct
before applying 'struct-vtable' to it.
2018-08-07 12:05:31 +02:00
Mark H Weaver
fe92bc26a6 Avoid inexact arithmetic in the type inferrer for 'sqrt'.
* module/language/cps/types.scm: Use 'exact-integer-sqrt' and avoid
inexact arithmetic in the range analysis of the type inferrer for
'sqrt'.
2018-08-07 12:02:16 +02:00
Mark H Weaver
c6f6edcc50 Fix type inference for bitwise logical operators.
Fixes <https://bugs.gnu.org/31474> and related bugs.
Reported by Jan Nieuwenhuizen <janneke@gnu.org>.

* module/language/cps/types.scm (next-power-of-two): Remove procedure.
(non-negative?, lognot*, saturate+, saturate-, logand-bounds)
(logsub-bounds, logior-bounds, logxor-bounds): New procedures.  Use them
to improve and fix bugs in the range analysis of the type inferrers for
'logand', 'logsub', 'logior', 'ulogior', 'logxor', 'ulogxor', and
'lognot'.
2018-08-07 12:01:48 +02:00
Mark H Weaver
6708acbf66 Fix eta-conversion edge cases in peval.
Fixes <https://bugs.gnu.org/29520>.
Reported by Stefan Israelsson Tampe <stefan.itampe@gmail.com>.

* module/language/tree-il/peval.scm (peval)[lift-applied-lambda]: Before
performing eta-conversion, check that the variable(s) passed to the
inner 'apply' are not referenced from the inner lambda, and that the
number of required arguments would not be reduced by the conversion.
2018-08-07 11:40:54 +02:00
Shea Levy
2662cafd6a Recognize RISC-V compilation targets.
* module/system/base/target.scm (cpu-endianness): Add case for "riscv" variants.

Signed-off-by: Shea Levy <shea@shealevy.com>
Signed-off-by: Mark H Weaver <mhw@netris.org>
2018-08-07 11:40:46 +02:00
Ludovic Courtès
898d97d440 srfi-18: 'thread-sleep!' timeout-as-a-number is relative.
This is a followup to <https://bugs.gnu.org/29704>.

* module/srfi/srfi-18.scm (thread-sleep!): When TIMEOUT is a number,
keep it as-is.
* test-suite/tests/srfi-18.test ("thread sleep with number"): Pass 0 as
the timeout.
("thread sleeps fractions of a second"): Pass 0.5 as the timeout.
2018-08-07 11:40:40 +02:00
Ludovic Courtès
cac14ad34d srfi-18: When timeout is a number, it's a relative number of seconds.
Fixes <https://bugs.gnu.org/29704>.
Reported by David Beswick <dlbeswick@gmail.com>.

* module/srfi/srfi-18.scm (timeout->absolute-time): New procedure.
(mutex-lock!): Use it in 'thread:lock-mutex' call.
(mutex-unlock!): Use it.
* test-suite/tests/srfi-18.test ("mutex-lock! returns false on timeout")
("mutex-lock! returns true when lock obtained within timeout")
("recursive lock waits")
("mutex unlock is false when condition times out"): Adjust cases where
the 'timeout' parameter is a number so that it's a relative number.
2018-08-07 11:40:31 +02:00
Ludovic Courtès
2245c67c37 Revert "Honor '%fresh-auto-compile'."
This reverts commit 83d4c4d622,
which came from a misunderstanding.
2018-08-07 11:37:11 +02:00
Ludovic Courtès
c91e9e9220 compile: Load language modules upfront.
Fixes a bug whereby "guild compile --target=arm-linux-gnueabihf
--from=elisp ... language/elisp/boot.el" would fail with an exception
from 'load-thunk-from-memory' while trying to load (language elisp spec)
from the guile-being-compiled instead of using that of the
guile-for-build.

The problem did not manifest with --from=scheme because (language scheme
spec) happened to be already loaded before we had changed %load-path.

* module/scripts/compile.scm (compile): Add calls to 'lookup-language'.
2018-08-07 11:35:34 +02:00
Andy Wingo
0a01963d07 VM hooks take no values
* libguile/vm-engine.c (RUN_HOOK0, RUN_HOOK1): Remove.
  (RUN_HOOK): Take hook name.
  (APPLY_HOOK, RETURN_HOOK, NEXT_HOOK, ABORT_CONTINUATION_HOOK): Use
  RUN_HOOK.
* libguile/vm.c (vm_dispatch_hook): Remove value count arg; hooks no
  longer receive values (e.g. the return hook now uses
  frame-return-values).
  (vm_dispatch_abort_hook): Remove value count, which was bogus because
  the active frame was the continuation which might contain other
  locals, potentially unboxed, not the implicit return-values frame.  In
  the future we could push on an implicit return-values frame instead.
* module/system/vm/traps.scm (trap-in-procedure, trap-frame-finish):
  (trap-in-dynamic-extent, trap-calls-to-procedure): Adapt abort hooks
  to not take values.  They weren't being used anyway!
2018-08-07 11:05:56 +02:00
Andy Wingo
f4c50447dd Remove push continuation hook; return hook runs before FP pop
* libguile/frames.c (scm_frame_return_values): New function, for use
  when a frame is at "return-values".
  (scm_init_frames_builtins): Register frame-return-values.
* libguile/vm-engine.c (RETURN_HOOK): Rename from POP_CONTINUATION_HOOK.
  (call, call-label): Remove PUSH_CONTINUATION_HOOK; it's unneeded, as
  you can always check the FP from an apply hook.
  (return-values): Run return hook before popping frame.
* libguile/vm.c (vm_dispatch_return_hook): Rename from
  vm_dispatch_pop_continuation_hook.  Remove push continuation hook.
  (scm_vm_return_hook):
* libguile/vm.h (SCM_VM_PUSH_CONTINUATION_HOOK): Remove.
  (SCM_VM_RETURN_HOOK): Rename from SCM_VM_POP_CONTINUATION_HOOK.
* module/system/vm/frame.scm (frame-return-values): Export.
* module/system/vm/trace.scm (print-return, trace-calls-to-procedure)
  (trace-calls-in-procedure): Adapt to not receiving values as
  arguments.
* module/system/vm/traps.scm (trap-in-procedure, trap-frame-finish):
  Adapt to return hook coming from returning frame.
  (program-sources-by-line): Update to use match instead of pmatch.
* module/system/vm/traps.scm (trap-in-dynamic-extent)
  (trap-calls-to-procedure): Adapt to return hook not receiving values.
* module/system/vm/vm.scm: Remove push continuation hook and rename
  return hook.
2018-08-06 17:00:45 +02:00
Andy Wingo
d145b57baf Minor updates for Scheme runtime (statprof, backtraces)
* module/system/vm/frame.scm: Add a comment about a case that we need to
  handle in the future.
* module/statprof.scm (statprof-proc-call-data): Always use the program
  code as the key, even for primitives.
2018-08-06 13:34:48 +02:00
Andy Wingo
b8a9a666f1 Rewrite subr implementation
* libguile/gsubr.c: Reimplement to store subr names and procedures in a
  side table, and to allocate fresh vcode for each subr.  This allows
  JIT of subrs, moves to a uniform all-code-starts-with-instrument-entry
  regime, and also allows statprof to distinguish between subrs based on
  IP.
* libguile/gsubr.h (SCM_SUBRF, SCM_SUBR_NAME): Call out to functions,
  now that these are in a side table.
  (scm_subr_function, scm_subr_name): New exports.
  (scm_i_primitive_name): New internal function, for looking up a
  primitive name based on IP.
  (scm_apply_subr): Take the subr index.
* libguile/vm-engine.c (subr-call):
* libguile/jit.c (compile_subr_call): Adapt to take index as arg.
* module/statprof.scm (sample-stack-procs, count-call):
  (stack-samples->procedure-data): Update to always record IP in stack
  samples and call counts.
* module/system/vm/frame.scm (frame-procedure-name): Simplify.
  (frame-instruction-pointer-or-primitive-procedure-name): Removed.
* libguile/programs.h:
* libguile/programs.c (scm_primitive_code_name): New function.
* module/system/vm/program.scm (primitive-code-name): New export.
2018-07-29 15:47:07 +02:00
Andy Wingo
5c2e155fd7 Emit instrument-entry before programs
* module/system/vm/assembler.scm (<jit-data>, <meta>): Rework to have
  <meta> create the <jit-data> in the end-program, so that jit-data
  isn't mutable.  Record start and end PC values relative to '.rtl-text
  so that we don't need any more linker symbols.
  (emit-instrument-entry*, emit-instrument-loop*, begin-program):
  (end-program): Adapt.
  (begin-kw-arity): Include the initial instrument-entry in the first
  arity.
  (link-data, link-constants): Write the init routine before interning
  constants so that we correctly emit the jit-data for the init
  routine.
* libguile/programs.c (try_parse_arity): Skip over a
  scm_op_instrument_entry, if any.
2018-07-29 15:47:07 +02:00
Andy Wingo
a6b5049aa8 Emit instrument-loop in loops.
* am/bootstrap.am (SOURCES):
* module/Makefile.am (SOURCES): Handle renamve of handle-interrupts.scm
  to loop-instrumentation.scm.
* libguile/jit.h (SCM_JIT_COUNTER_ENTRY_INCREMENT): Rename from
  SCM_JIT_COUNTER_CALL_INCREMENT.
* libguile/vm-engine.c (instrument-entry): Rename from instrument-call.
* module/language/cps/compile-bytecode.scm (compile-function): Add
  handle-interrupts code before calls and returns.  Compile the
  "instrument-loop" primcall to an "instrument-loop" instruction and a
  "handle-interrupts" instruction.
  (lower-cps): Adapt to add-loop-instrumentation name change.
* module/language/cps/loop-instrumentation.scm: Rename from
  handle-interrupts.scm and just add "instrument-loop" primcalls in
  loops.  The compiler will add handle-interrupts primcalls as
  appropriate.
* module/system/vm/assembler.scm (<jit-data>): New data type, for
  emitting embedded JIT data.
  (<meta>): Add field for current JIT data.
  (make-meta): Initialize current JIT data.
  (emit-instrument-entry*, emit-instrument-loop*): New instruction
  emitters that reference the current JIT data.
  (end-program): Now that all labels are known, arrange to serialize the
  JIT data.
  (link-data): Reserve space for JIT data, and add relocs to initialize
  the "start" / "end" fields.
2018-07-29 15:47:07 +02:00
Andy Wingo
87da1c8d20 Add instrument-call, instrument-loop VM instructions
* libguile/jit.h (struct scm_jit_function_data)
  (enum scm_jit_counter_value): New data types.
* libguile/jit.c (scm_jit_compute_mcode, scm_jit_enter_mcode): New
  function stubs.  Adapt label/offset compilers to take pointers.
* libguile/vm-engine.c (instrument-call, instrument-loop): New
  instructions.
* libguile/vm.c: Add jit.h include.
* module/system/vm/assembler.scm (emit-instrument-call)
  (emit-instrument-loop): New exports.
2018-07-29 15:47:03 +02:00
Andy Wingo
950a762dc2 Multiple-value returns now start from slot 0, not slot 1
This should reduce frame sizes.

* libguile/vm-engine.c (halt): Adapt to multiple-values change.  Also
  adapt to not having the boot closure on the stack.
  (receive, receive-values, subr-call, foreign-call): Adapt to expect
  values one slot down.
  (prompt): Capture one less word for the values return.
* libguile/vm.c (vm_dispatch_pop_continuation_hook):
  (vm_dispatch_abort_hook): Adapt for where to expect values.
  (vm_builtin_values_code): Add a call to shuffle-down before
  returning.  This is more overhead than what existed before, but the
  hope is that the savings elsewhere pay off.
  (vm_builtin_values_code): Adapt to different values location.
  (reinstate_continuation_x, compose_continuation): Adapt to place
  resume args at right position.
  (capture_delimited_continuation): Remove unused sp and ip arguments.
  (abort_to_prompt): Adapt to capture_delimited_continuation change.
  (scm_call_n): Adapt to not reserve space for the boot closure.
* module/language/cps/compile-bytecode.scm (compile-function): When
  returning values, adapt reset-frame call for return calling convention
  change.  Adapt truncating or rest returns to expect values in the
  right place.
* module/language/cps/slot-allocation.scm (compute-shuffles):
  (allocate-lazy-vars, allocate-slots): Allocate values from the "proc
  slot", not proc-slot + 1.
* module/system/vm/assembler.scm (emit-init-constants): Reset the frame
  before returning so that the return value is in the right place.
* test-suite/tests/rtl.test: Update for return convention change.
* libguile/foreign.c (get_foreign_stub_code): Update for return calling
  convention change.
2018-07-20 11:42:30 +02:00
Andy Wingo
c2a8224a63 Rework VM approach to shuffling unknown numbers of args
* libguile/vm-engine.c (shuffle-down, expand-apply-argument): New
  instructions.
  (tail-call, tail-call-label, return-values): Don't reset the frame.
  The compiler should reset the frame appropriately.
  (tail-call/shuffle, tail-apply): Remove unused instructions.
* libguile/vm.c (vm_builtin_apply_code): Use new shuffle-down and
  expand-apply-argument opcodes.
  (vm_builtin_call_with_values_code): Replace tail-call/shuffle with
  shuffle-down then tail-call.
* libguile/jit.c (compile_shuffle_down, compile_expand_apply_argument):
  Add compiler stubs
  (COMPILE_X8_F12_F12): New definition.
  (compile_tail_call_shuffle, compile_tail_apply): Remove unused
  compilers.
* module/language/cps/compile-bytecode.scm (compile-function): Emit
  reset-frame before tail calls and returns.
* module/system/vm/assembler.scm (system): Remove unbound "emit-return"
  export.
* module/system/vm/disassembler.scm (code-annotation)
  (instruction-has-fallthrough?, define-stack-effect-parser): Adapt for
  opcode changes.
2018-07-20 11:42:30 +02:00
Andy Wingo
043432fd57 Reserve frame word for machine return address
* libguile/frames.h: Add machine return address to diagram.
  (SCM_FRAME_MACHINE_RETURN_ADDRESS):
  (SCM_FRAME_SET_MACHINE_RETURN_ADDRESS): New macros.
  (SCM_FRAME_PREVIOUS_SP):
  (SCM_FRAME_DYNAMIC_LINK):
  (SCM_FRAME_SET_DYNAMIC_LINK): Adapt for new frame size.
* libguile/vm-engine.c (halt): Set frame size to 3.
  (call, call-label): Set mRA to 0.
* libguile/vm.c (push_interrupt_frame, reinstate_continuation_x):
  (scm_call_n): Set frame size to 3.  In push_interrupt_frame, init the
  mRA of the frame.
  (vm_builtin_call_with_values_code, vm_handle_interrupt_code): Allocate
  larger frames.
* module/language/cps/slot-allocation.scm (allocate-slots): Frame size
  is 3.
* module/system/vm/disassembler.scm (define-clobber-parser): Bump frame
  size.
2018-07-20 11:42:30 +02:00
Andy Wingo
b1705bd0f0 Prepare for frames having separate virtual and machine return addrs
* libguile/frames.c (scm_frame_return_address): Use
  SCM_FRAME_VIRTUAL_RETURN_ADDRESS.
  (scm_c_frame_previous): Likewise.
* libguile/frames.h: Update diagram for new names.
  (union scm_vm_stack_element): Rename "as_ip" to "as_vcode", and
  add "as_mcode" for machine code pointers.
  (SCM_FRAME_VIRTUAL_RETURN_ADDRESS)
  (SCM_FRAME_SET_VIRTUAL_RETURN_ADDRESS): Rename to these, from
  SCM_FRAME_RETURN_ADDRESS and SCM_FRAME_SET_RETURN_ADDRESS.
* libguile/vm-engine.c (halt, call, call-label, return-values)
  (return-from-interrupt): Adapt to renamings.  Make "halt" have frame
  size as a parameter.
* libguile/vm.c (scm_i_vm_mark_stack): Adapt to renaming.
  (push_interrupt_frame): Take mRA as additional argument.  In future we
  will set it as frame mRA.
  (capture_continuation): Adapt to renaming.
  (scm_call_n): Adapt to renaming and make frame size adjustable.
  (push_interrupt_frame, reinstate_continuation_x): Make frame size
  adjustable.
* module/language/cps/slot-allocation.scm (allocate-slots): Make frame
  size adjustable.
* libguile/intrinsics.h (scm_t_thread_mra_intrinsic): New type; use for
  push_interrupt_frame.
  (scm_t_thread_u8_scm_sp_vra_intrinsic): Rename from the same but was
  "ra" instead of "vra", and change type to uint32_t*.
* module/system/vm/disassembler.scm (define-clobber-parser):
  Parameterize clobber set for calls by frame size.
2018-07-20 11:42:30 +02:00
Andy Wingo
8918165c40 Compile current-module as intrinsic call
* libguile/fluids.c (scm_i_fluid_ref): New internal function.
  (scm_fluid_ref): Use scm_i_fluid_ref.
* libguile/intrinsics.h:
* libguile/intrinsics.c (current_module): New intrinsic.
* libguile/modules.c (scm_i_current_module): New internal function.
  (scm_current_module): Use new internal function.
* module/language/cps/reify-primitives.scm (compute-known-primitives):
  Add current-module as an intrinsic primitive.
* module/system/vm/assembler.scm (define-scm<-thread-intrinsic):
  (current-module): Arrange to compile to intrinsic call.
2018-06-27 14:57:51 +02:00
Andy Wingo
76eac85084 Use intrinsics for top-level refs outside captured scopes
* module/language/tree-il/compile-cps.scm (toplevel-box): Reify
  intrinsic calls for top-level references outside captured scopes.
* module/language/cps/reify-primitives.scm (compute-known-primitives):
  Update set of macro-instructions.
2018-05-14 16:25:50 +02:00
Andy Wingo
ceffb5e990 Compile "define!" via intrinsic
* libguile/intrinsics.c (scm_bootstrap_intrinsics):
* libguile/intrinsics.h (SCM_FOR_ALL_VM_INTRINSICS): Add new define!
  intrinsic.
* module/language/cps/compile-bytecode.scm (compile-function): Adapt
  compilation for define! to take two arguments.
* module/language/cps/effects-analysis.scm (current-module): Update
  define! for two arguments.
* module/language/tree-il/compile-cps.scm (convert): When reifying
  "define", grab the current module.
* module/system/vm/assembler.scm (define!): Define assembler as
  intrinsic.
2018-05-14 15:15:22 +02:00
Andy Wingo
77e7bea4c2 Remove backend support for cached-module-box et al.
* module/language/cps/compile-bytecode.scm (compile-function): Remove
  unused assemblers for cached-module-box, cached-toplevel-box, and
  cache-current-module!.
* module/language/cps/effects-analysis.scm (&cache): New memory kind.
  (cache-current-module!): Set &cache memory, not &box.
  (resolve-module, lookup-module, cache-ref, cache-set!): Add effect
  annotations.
* module/system/vm/assembler.scm (emit-cache-current-module!)
  (emit-cached-toplevel-box, emit-cached-module-box): Remove
  assemblers.
* module/system/vm/disassembler.scm (code-annotation, fold-code-range):
  Remove special cases for toplevel-box and module-box.
* module/system/xref.scm (program-callee-rev-vars): Add a FIXME for the
  future.
2018-05-14 14:04:59 +02:00