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leak at birth (25.2d): an allocation nothing keeps, made where the arena does not take it

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ludic deps --births lists every site the escape analysis finds kept by nothing and not the frame
arena's - boot and load code, a function spanning frames, frame code with the arena off - which is
made and dropped and never given back; birth_leaks is a number --check ratchets. A text used up by +
or == where it is made is freed at once and not counted; nor is what @alloc_ok covers.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-28 16:37:50 +03:00
parent db3a3d80d1
commit ce2699dfee
5 changed files with 57715 additions and 56121 deletions
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5
selfhost/backend/emit_escape.ludic
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@ -25,6 +25,7 @@ var g_es_aok: int = 0 # inside a statement under @
var g_es_site_aok: []bool = new []bool # the site is (not reported by the region rule)
var g_es_site_grow: []bool = new []bool # the site is a push's growth (25.5's capacities, not the rule)
var g_es_done: bool = false
var g_es_consumed: []Node = new []Node # text used up where it is made (a + or == operand): freed at once
var g_es_ft: []int = new []int # flow edges
var g_es_ff: []int = new []int
var g_es_st: []int = new []int # store edges: value, target
@ -114,6 +115,10 @@ function es_val(e: Node) -> int {
if k == E_BIN {
es_val(e.a)
es_val(e.b)
if (e.s == "+") or (e.s == "==") or (e.s == "!=") {
if e.a != null and (e.a.kind == E_BIN or e.a.kind == E_CALL or e.a.kind == E_SLICE) { push(g_es_consumed, e.a) }
if e.b != null and (e.b.kind == E_BIN or e.b.kind == E_CALL or e.b.kind == E_SLICE) { push(g_es_consumed, e.b) }
}
if (e.s == "+") and fr_is_textish(e) { return es_site(e) }
return -1
}