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bitvector-bit-set? / bitvector-bit-clear? replace bitvector-ref

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This is an opportunity to make a new interface that can be more
efficient in 3.0 (because no generic array support), easier to read (no
need for 'not'), and more consistent with other bitvector interfaces.

* NEWS: Add entry.
* doc/ref/api-data.texi (Bit Vectors): Update.
* libguile/array-handle.h (bitvector_ref, scm_array_get_handle): Adapt
  to bitvector changes.
* libguile/bitvectors.h:
* libguile/bitvectors.c (scm_c_bitvector_bit_is_set)
  (scm_c_bitvector_bit_is_clear): New functions.
* libguile/deprecated.h:
* libguile/deprecated.c (scm_bitvector_ref): Deprecate.
* module/ice-9/sandbox.scm (bitvector-bindings): Replace
  bitvector-ref with bitvector-bit-set? / bitvector-bit-clear?.
* module/system/vm/disassembler.scm (instruction-has-fallthrough): Use
  bitvector-bit-clear?.
* test-suite/tests/bitvectors.test: Update.
This commit is contained in:
Andy Wingo 2020-04-14 22:08:45 +02:00
parent ff9979b6bc
commit d804177be4
10 changed files with 106 additions and 50 deletions
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2
module/system/vm/disassembler.scm
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@ -509,7 +509,7 @@ address of that offset."
subr-call foreign-call continuation-call
j))
(let ((opcode (logand (bytevector-u32-native-ref code pos) #xff)))
(not (bitvector-ref non-fallthrough-set opcode))))
(bitvector-bit-clear? non-fallthrough-set opcode)))
(define-syntax define-jump-parser
(lambda (x)