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4452 commits

Author SHA1 Message Date
Ludovic Courtès
761cf0fb8c 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).
2018-06-18 14:14:47 +02:00
Christopher Allan Webber
eb90831ce8 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>
2018-06-18 14:14:47 +02:00
Mark H Weaver
ac9f0831c1
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.
2018-06-11 10:14:28 -04:00
Mark H Weaver
bff75635e5
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.
2018-06-11 10:12:54 -04:00
Mark H Weaver
ff2adb04cb
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.
2018-06-11 10:12:50 -04:00
Mark H Weaver
e1dffd3504
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'.
2018-06-11 10:12:47 -04:00
Mark H Weaver
2733e97395
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'.
2018-06-11 10:12:45 -04:00
Mark H Weaver
df93752479
Revert "Minor CSE run-time optimization"
Fixes <https://bugs.gnu.org/30020>.
Reported by David Thompson <dthompson2@worcester.edu>.

This reverts commit d4883307ca.
2018-06-11 10:12:43 -04:00
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
Andy Wingo
667d808f58 Instruction explosion for cache-current-module, cached-toplevel-box
* module/language/cps/reify-primitives.scm (primitive-ref): When
  reifying xoprimitives, explode cached-module-box references.
  (cache-current-module!, cached-toplevel-box): Do instruction
  explosion.
2018-05-14 14:04:59 +02:00
Andy Wingo
3edf02cbe5 Instruction explosion for cached-module-box
* module/language/cps/reify-primitives.scm (reify-lookup):
  (reify-resolve-module): New helpers.
  (cached-module-box): Explode.
2018-05-14 14:04:59 +02:00
Andy Wingo
f6de1b0620 Add cache-ref, cache-set! macro-instructions
* module/system/vm/assembler.scm (<cache-cell>): Remove "scope" member.
  Just be an opaque key comparable with equal?.
  (intern-cache-cell): Remove scope arg.
  (intern-module-cache-cell): Remove; callers use intern-cache-cell now.
  (cache-current-module!, cached-toplevel-box, cached-module-box): Create
  cache keys that by construction won't collide between types.
  (cache-ref, cache-set!): Add new macro assemblers.
* module/language/cps/reify-primitives.scm:
* module/language/cps/compile-bytecode.scm: Add cases for new macro
  instructions.
2018-05-14 14:04:59 +02:00
Andy Wingo
fb344a25d5 Add intrinsics for module operations
* libguile/intrinsics.c (scm_bootstrap_intrinsics):
* libguile/intrinsics.h (SCM_FOR_ALL_VM_INTRINSICS):
* module/system/vm/assembler.scm (resolve-module, lookup): New intrinsics.
* module/language/cps/compile-bytecode: Add cases for primcalls
  corresponding to new intrinsics.
2018-05-14 14:04:54 +02:00
Andy Wingo
1532b570e5 lsh, rsh etc are intrinsics
* libguile/intrinsics.c (lsh, rsh, lsh_immediate, rsh_immediate): New
  intrinsics.
  (scm_bootstrap_intrinsics): Wire up the intrinsics.
* libguile/intrinsics.h (SCM_FOR_ALL_VM_INTRINSICS): Add new
  intrinsics.
* libguile/vm-engine.c (call-scm<-scm-u64): New intrinsic caller.
  (lsh, rsh, lsh/immediate, rsh/immediate): Disable.
* module/language/cps/reify-primitives.scm (compute-known-primitives):
  Add new intrinsics.
* module/system/vm/assembler.scm: Adapt assemblers for new intrinsics.
2018-05-01 07:02:45 +02:00
Andy Wingo
89fda6da60 push and pop dynamic state via intrinsics
* libguile/intrinsics.c (push_dynamic_state, pop_dynamic_state): New
  intrinsics.
  (scm_bootstrap_intrinsics): Add new intrinsics.
* libguile/intrinsics.h: Declare new intrinsics.
* libguile/vm-engine.c (call-thread-scm): New intrinsic caller.
  (push-dynamic-state, pop-dynamic-state): Disable.
* module/language/cps/reify-primitives.scm (compute-known-primitives):
  Add new intrinsics.
* module/system/vm/assembler.scm (push-dynamic-state)
  (pop-dynamic-state): Emit as intrinsics.
2018-04-29 10:41:24 +02:00
Andy Wingo
2eb9c755d1 Intrinsics for dynamic state instructions
* libguile/intrinsics.c (wind, unwind, push_fluid, pop_fluid)
  (fluid_ref): New intrinsics.
  (scm_bootstrap_intrinsics): Wire them up.
* libguile/intrinsics.h (SCM_FOR_ALL_VM_INTRINSICS): Declare new
  intrinsics.
* libguile/vm-engine.c (wind, unwind, push_fluid, pop_fluid)
  (fluid_ref): Disable these instructions.
* module/language/cps/reify-primitives.scm (compute-known-primitives):
  Add new intrinsics.
* module/system/vm/assembler.scm (wind, unwind, push_fluid, pop_fluid)
  (fluid_ref): Assemble as intrinsics.
2018-04-29 10:22:30 +02:00
Andy Wingo
4779a10223 Add support for dynamic-state-related intrinsics
* libguile/vm-engine.c (call-thread, call-thread-scm-scm)
  (call-scm<-thread-scm): New intrinsics.
* module/system/vm/assembler.scm (define-thread-scm-scm-intrinsic)
  (define-thread-intrinsic, define-scm<-thread-scm-intrinsic): New
  helpers.
  (encode-X8_S12_S12-C32!/shuffle): New shuffler.
* libguile/intrinsics.h: Add new intrinsic types.
2018-04-29 10:13:50 +02:00
Andy Wingo
dff85f6f9f Explode atomic box ops to new atomic instructions
* libguile/instructions.c (FOR_EACH_INSTRUCTION_WORD_TYPE): Add C8_S24
  word type.
* libguile/vm-engine.c (UNPACK_8_24): New helper.
  (atomic-scm-ref/immediate, atomic-scm-set!/immediate)
  (atomic-swap-scm!/immediate, atomic-scm-compare-and-swap!/immediate):
  New instructions.
  (make-atomic-box, atomic-box-ref, atomic-box-set!, atomic-box-swap!)
  (atomic-box-compare-and-swap!): Disable these ops.
* module/language/bytecode.scm (compute-instruction-arity): Add C8_S24
  support.
* module/system/vm/assembler.scm: Add C8_S24 support.  Export assemblers
  for new opcodes.
* module/system/vm/disassembler.scm (disassembler): Support C8_S24.
* module/language/cps/compile-bytecode.scm (compile-function): Replace
  old atomic-box assemblers with the new instructions.
* module/language/cps/effects-analysis.scm (annotation->memory-kind):
* module/language/cps/types.scm (annotation->type): Add cases for atomic
  boxes.  Mark as all memory kinds because atomic ops serialize memory
  accesses.
* module/language/tree-il/compile-cps.scm (make-atomic-box):
  (ensure-atomic-box, atomic-box-ref, atomic-box-set!):
  (atomic-box-swap!, atomic-box-compare-and-swap!): Explode these ops to
  more basic instructions.
* module/system/base/types/internal.scm (%tc7-atomic-box): Add forgotten
  export.
2018-04-13 10:09:56 +02:00
Andy Wingo
25a0fe8839 logsub is intrinsic
* libguile/intrinsics.h:
* libguile/intrinsics.c (logsub): New intrinsic.
  (scm_bootstrap_intrinsics): Init new intrinsic.
* libguile/vm-engine.c (logsub): Disable.
* module/language/cps/reify-primitives.scm (compute-known-primitives):
  Add logsub.
* module/system/vm/assembler.scm: Update logsub intrinsic assembler.
2018-04-12 17:10:35 +02:00
Andy Wingo
7e386bbc70 u64->scm, s64->scm intrinsics
* libguile/intrinsics.h (u64->scm, s64->scm): New intrinsics.
* libguile/intrinsics.c (scm_bootstrap_intrinsics): Initialize new
  intrinsics.
* libguile/vm-engine.c (call-scm<-u64, call-scm<-s64): New intrinsic
  callers.
  (u64->scm, s64->scm): Disable instructions.
* module/language/cps/reify-primitives.scm (compute-known-primitives):
  Add new intrinsics as macro-instructions.
* module/system/vm/assembler.scm (define-scm<-u64-intrinsic):
  (define-scm<-s64-intrinsic, u64->scm, s64->scm): Wire up new
  intrinsics.
2018-04-12 16:43:57 +02:00
Andy Wingo
dd88fc569d scm->u64, scm->s64, scm->u64/truncate intrinsics
* libguile/intrinsics.c (scm_to_uint64_truncate): New intrinsic.
  (scm_bootstrap_intrinsics): Init new intrinsics.
* libguile/intrinsics.h: Add scm->u64, scm->u64/truncate, and scm->s64
  as intrinsics, with their corresponding types.
* libguile/vm-engine.c (call-u64<-scm, call-s64<-scm): New intrinsic
  calling ops.
  (scm->u64, scm->s64, scm->u64/truncate): Disable opcodes.
* module/language/cps/reify-primitives.scm (compute-known-primitives):
  Add intrinsics as new macroinstructions.
* module/system/vm/assembler.scm: Declare new intrinsic assemblers.
2018-04-12 16:22:40 +02:00
Andy Wingo
b285226477 Disable f64->scm instruction
* libguile/vm-engine.c (f64->scm): Disable instruction.
* module/language/cps/compile-bytecode.scm (compile-function): Remove
  f64->scm case.
* module/system/vm/assembler.scm: Remove emit-f64->scm export.
2018-04-10 20:41:04 +02:00
Andy Wingo
997ecae1df Instruction explosion for f64->scm
* module/language/cps/reify-primitives.scm (reify-primitives): Reify
  f64->scm via low-level operations.
2018-04-10 20:37:28 +02:00
Andy Wingo
c109fa7eb8 Add reifier for fadd/immediate.
* module/language/cps/reify-primitives.scm (fadd/immediate): Add
  missing reify procedure.
2018-04-10 20:37:11 +02:00
Andy Wingo
41689edfc3 Slim heap-allocated flonums
* libguile/numbers.h (struct scm_t_double, struct scm_t_complex): Avoid
  adding an extra padding word on systems with 8-byte pointers.
* module/system/base/types.scm (cell->object): Update to compute correct
  offset of embedded double.
2018-04-10 20:01:52 +02:00
Andy Wingo
b9f7621e13 Add scm->f64 intrinsic
* libguile/vm-engine.c (call-f64<-scm): New intrinsic kind.
  (scm->f64): Disable instruction.
* libguile/intrinsics.h (SCM_FOR_ALL_VM_INTRINSICS):
* libguile/intrinsics.c (scm_bootstrap_intrinsics):
* module/language/cps/reify-primitives.scm (compute-known-primitives):
* module/system/vm/assembler.scm (define-f64<-scm-intrinsic): Add scm->f64.
2018-04-10 19:39:50 +02:00
Andy Wingo
954bfad262 Class-of is intrinsic
* libguile/vm-engine.c (class-of): Disable.
* module/language/cps/reify-primitives.scm (compute-known-primitives):
  Add class-of as macro-instruction.
* libguile/intrinsics.c (scm_bootstrap_intrinsics): Add class-of.
* libguile/intrinsics.h (SCM_FOR_ALL_VM_INTRINSICS): Add class-of.
* module/system/vm/assembler.scm (class-of): Define as intrinsic.
2018-04-10 18:32:31 +02:00
Andy Wingo
d1ed64d900 Add string->number etc as macro instructions to reify-primitives
* module/language/cps/reify-primitives.scm (compute-known-primitives):
  Add string->number, etc.  Missed from two commits ago.
2018-04-10 18:20:29 +02:00
Andy Wingo
1c49c1407b string->number, etc intrinsics
* libguile/intrinsics.c (string_to_number): New helper.
  (scm_bootstrap_intrinsics): Init new intrinsics.
* libguile/intrinsics.h (string->number, string->symbol)
  (symbol->keyword): Add new intrinsics.
* libguile/vm-engine.c (call-scm<-scm): New intrinsic dispatcher.
  (string->number, string->symbol, symbol->keyword): Disable these
  instructions.
* module/system/vm/assembler.scm (encode-X8_S12_S12-C32<-/shuffle):
  (define-scm<-scm-intrinsic): Enable scm<-scm intrinsics.
  (string->number, string->symbol, symbol->keyword): New intrinsic
  assemblers.
2018-04-10 17:56:08 +02:00
Andy Wingo
9f98b4a5b1 Add $code CPS expression type
* module/language/cps.scm ($code): New CPS type, for labels as values.
  Add cases to all CPS type dispatches.  $closure now indicates only
  statically allocated closures.
* module/language/cps/closure-conversion.scm (convert-one): Only reify
  $closure for statically allocated procedures.  Otherwise allocate an
  object using low-level primitives.
* module/language/cps/compile-bytecode.scm (compile-function): Remove
  make-closure case.
* module/language/cps/slot-allocation.scm (compute-var-representations):
  $code produces a u64 value.
* module/system/vm/assembler.scm: Remove make-closure export.
* 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/specialize-numbers.scm:
* module/language/cps/types.scm:
* module/language/cps/utils.scm:
* module/language/cps/verify.scm: Add cases for $code.
2018-04-10 17:06:27 +02:00
Andy Wingo
70e3a4a311 Add load-label instruction
* libguile/vm-engine.c (load-label): New instruction.
* module/system/vm/assembler.scm: Add emit-load-label.
* module/system/vm/disassembler.scm (code-annotation):
  (fold-code-range): Add load-label support.
2018-04-10 14:36:15 +02:00
Andy Wingo
3047bcaefb Remove dead code in CPS converter
* module/language/tree-il/compile-cps.scm: Remove dead primcall
  expanders.
2018-04-10 14:10:03 +02:00
Andy Wingo
21d5897b4c Instruction explosion for char->integer
* module/language/cps/effects-analysis.scm:
* module/language/cps/slot-allocation.scm (compute-var-representations):
* module/language/cps/types.scm:
* module/language/cps/compile-bytecode.scm (compile-function): Remove
  char->integer cases.
* module/system/vm/assembler.scm: Remove emit-char->integer export.
* module/language/tree-il/compile-cps.scm (char->integer): Define
  instruction exploder.
2018-04-10 13:45:33 +02:00
Andy Wingo
9355985154 Remove integer->char op
* libguile/vm-engine.c (integer->char): Remove unused op.
* module/language/cps/types.scm:
* module/language/cps/effects-analysis.scm:
* module/language/cps/compile-bytecode.scm (compile-function): Remove
  integer->char cases.
* module/system/vm/assembler.scm: Remove emit-integer->char.
2018-04-10 13:33:13 +02:00
Andy Wingo
880d68ea22 Instruction explosion for integer->char
* module/language/tree-il/compile-cps.scm (integer->char): Instruction
  explosion!
2018-04-10 13:22:59 +02:00
Andy Wingo
2964abad05 Explode "string-set!"
* module/language/cps/effects-analysis.scm (string-ref): Remove effects
  declaration, given that the primitive is exploded now.
* module/language/cps/reify-primitives.scm (compute-known-primitives):
  Add string-set!.
* libguile/vm-engine.c (string-set!): Disable opcode.
* module/language/cps/types.scm (string-ref, string-set!): Remove type
  checker and inferrers for string-ref and string-set!, as both are
  exploded.  In the case of string-set! there are still type-check
  effects in the intrinsic call but they can't be elided by the checker,
  as we don't track when strings are read-only.
* module/language/tree-il/compile-cps.scm (ensure-char): New helper.
  (string-set!): New primcall exploded converter.
2018-04-10 12:14:47 +02:00
Andy Wingo
0ae1e943d8 Add string-set! intrinsic
* libguile/intrinsics.c (string_set_x): New intrinsic.
  (scm_bootstrap_intrinsics): Initialize intrinsic.
* libguile/intrinsics.h: Add string-set! intrinsic.
* libguile/vm-engine.c (call-scm-u64-u64): New intrinsic trampoline.
* module/system/vm/assembler.scm (encode-X8_S8_S8_S8-C32!/shuffle): New
  shuffling encoder.
  (define-scm-u64-u64-intrinsic): New helper.
2018-04-10 11:57:40 +02:00
Andy Wingo
33b038bfa9 Remove now-unused string-length, string-ref
* libguile/vm-engine.c (string-length, string-ref): Remove
  instructions.
* module/system/vm/assembler.scm: Remove assembler exports as well.
2018-04-09 10:22:35 +02:00
Andy Wingo
7a109dddd7 Lower string-ref in CPS conversion
* module/language/cps/effects-analysis.scm (annotation->memory-kind):
* module/language/cps/types.scm (annotation->type): Hackily consider
  stringbuf memory to be string memory.
* module/language/tree-il/compile-cps.scm (string-ref): Add horrible
  lowering conversion for string-ref.
2018-04-09 10:13:09 +02:00
Andy Wingo
91d0db1bf7 Add VM ops needed for string-ref
* libguile/vm-engine.c (tail-pointer-ref/immediate, tag-char)
  (untag-char): New instructions.
* module/language/cps/compile-bytecode.scm (compile-function): Add
  support for new instructions.
* module/language/cps/cse.scm (compute-equivalent-subexpressions): CSE
  cases for tag-char / untag-char.
* module/language/cps/effects-analysis.scm:
* module/language/cps/types.scm: Add cases for new primcalls.
* module/language/cps/reify-primitives.scm (reify-primitives): Update
  comment.
* module/language/cps/slot-allocation.scm (compute-var-representations):
  Add cases for untag-char, tail-pointer-ref/immediate.
* module/language/cps/specialize-primcalls.scm (specialize-primcalls):
  Add untag-char case, and add FIXME comment for tag-char.
* module/system/vm/assembler.scm: Export new assemblers.
2018-04-08 21:26:46 +02:00
Andy Wingo
39fb7e540b CPS conversion lowers string-length
* module/language/cps/types.scm (annotation->type):
* module/language/cps/effects-analysis.scm (annotation->memory-kind):
  Add case for string memory kinds.  Remove special type and effect
  inferrers for string-length.
* module/language/cps/slot-allocation.scm (compute-var-representations):
  Remove string-length.
* module/language/tree-il/compile-cps.scm (ensure-string): New helper.
  (string-length): Add custom converter.
2018-04-08 10:27:52 +02:00
Andy Wingo
bb1ff0e78a Remove specific instructions for add, etc from VM
* module/language/cps/reify-primitives.scm (compute-known-primitives):
  Treat add, sub, and so on as known primitives.
* libguile/vm-engine.c: Remove code for now-unused instructions.
2018-03-31 01:40:47 +02:00
Andy Wingo
1f6f282f16 Compile some generic arithmetic to intrinsic calls
* libguile/intrinsics.h: Rename intrinsic types added in previous
  commit.
* libguile/vm-engine.c (call-scm<-scm-scm, call-scm<-scm-uimm): New
  instructions.
* libguile/vm.c: Include intrinsics.h.
* module/language/bytecode.scm
* module/language/bytecode.scm (*intrinsic-codes*, *intrinsic-names*):
  New internal definitions.
  (intrinsic-name->index, intrinsic-index->name): New exported
  definitions.
* module/system/vm/assembler.scm (encode-X8_S8_S8_S8-C32<-/shuffle):
  (encode-X8_S8_S8_C8-C32<-/shuffle): New shuffling encoders.
  (shuffling-encoder-name): Add case for new shuffling encoders.
  (define-scm<-scm-scm-intrinsic, define-scm<-scm-uimm-intrinsic): New
  helpers.  Define encoders for "add", etc.
2018-03-30 22:11:18 +02:00
Mark H Weaver
b56e084c77
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.
2018-03-15 23:22:26 -04:00
Shea Levy
08bb462836
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>
2018-03-15 23:15:44 -04:00
Ludovic Courtès
3986053959 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.
2018-02-16 15:29:35 +01:00
Ludovic Courtès
2c7b350f93 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.
2018-02-16 15:29:35 +01:00
Andy Wingo
98fc9c0380 Use make-struct/simple in tree-il
* module/language/tree-il.scm (borrow-core-vtables): Use
  make-struct/simple.
2018-01-22 08:09:33 +01:00