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Give arrays a proper type in C land

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As long as we have a tc7 for arrays, we should be able to access it with
a struct type instead of casting each word.

* libguile/arrays-internal.h: New file.
* libguile/arrays.h (scm_array_p): Take just one argument.
(SCM_I_ARRAYP):
(SCM_I_ARRAY_NDIM):
(SCM_I_ARRAY_V):
(SCM_I_ARRAY_BASE):
(SCM_I_ARRAY_DIMS):
(SCM_I_ARRAY_SET_V):
(SCM_I_ARRAY_SET_BASE): Remove.
(scm_i_raw_array, scm_i_make_array, scm_i_shap2ra, scm_init_arrays):
Remove internally-linked decls.
* libguile/init.c:
* libguile/print.c:
* libguile/array-handle.c: Use interfaces from new file.
* module/system/vm/assembler.scm: Update, as we now shift the dimension
count by only 16.  Requires a rebuild!
This commit is contained in:
Andy Wingo 2025-06-03 14:50:54 +02:00
parent 12e8772403
commit 9ff7c0651c
8 changed files with 248 additions and 178 deletions
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2
module/system/vm/assembler.scm
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@ -2068,7 +2068,7 @@ should be .data or .rodata), and return the resulting linker object.
(let-values
;; array tag + rank
;; see libguile/arrays.h: SCM_I_ARRAY_NDIM, SCM_I_ARRAYP, scm_i_raw_array
(((tag) (logior tc7-array (ash (array-rank obj) 17)))
(((tag) (logior tc7-array (ash (array-rank obj) 16)))
((bv-set! bvs-set!)
(case word-size
((4) (values bytevector-u32-set! bytevector-s32-set!))