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Phase 7k: bytes(n) / words(n) allocators (retire mem_alloc)

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Allocation reads as intent, not malloc:

  mem_alloc(64)          -> bytes(64)              (64 bytes -> a byte buffer)
  mem_alloc(w * h * 4)   -> words(w * h)           (w*h 32-bit words)

bytes(n) mallocs n bytes and returns a plain pointer (byte-indexed); words(n)
mallocs n*4 bytes and returns a `words` pointer (int-indexed). Since words(X) and
mem_alloc(X*4) allocate the identical number of bytes, the migration cannot change
any allocation size — the `* 4` factor just moves from the argument into the
allocator name, pairing naturally with the Phase-7j `words` retyping
(`var fb: words = words(w * h)`).

Migrated 102 sites (mem_alloc(E*4) -> words(E), else bytes(E)); deleted the
mem_alloc intrinsic. mem_realloc/free/copy/set stay as the low-level
reallocation/free family. Reseeded (22565 lines); C-free fixpoint holds; goldens
byte-identical; 18/18; vocab + doc-fences clean.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-08-28 02:26:15 +03:00
parent 5cab68ea2e
commit 86948d2b19
22 changed files with 3118 additions and 3069 deletions
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3
tools/ludic-tools/ludic_syntax.h
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@ -145,7 +145,8 @@ static const LBuiltin LUDIC_BUILTINS[] = {
};
static const LBuiltin LUDIC_INTRINSICS[] = {
{"mem_alloc","mem_alloc(n: int) -> ptr","Allocate n bytes (malloc)."},
{"bytes","bytes(n: int) -> ptr","Allocate a buffer of n bytes."},
{"words","words(n: int) -> words","Allocate a buffer of n 32-bit words."},
{"mem_realloc","mem_realloc(p: ptr, n: int) -> ptr","Resize a block to n bytes, preserving its contents (realloc)."},
{"os_argc","os_argc() -> int","Number of command-line arguments, argv[0] included."},
{"os_arg","os_arg(i: int) -> str","The i-th command-line argument."},