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fence: every runtime call is its line's site, and site 0 comes back when it returns

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A block took whatever @lp_site held when it was made. Only malloc, calloc, realloc, concat, the number
texts, the float text, a substring and Text.* set one, so every other runtime helper - intern,
Text.repeat and the string builders, the Fs, Os, unicode, uuid and crypto helpers - was charged to
whichever line had allocated last (walk 9 blamed gvk_tex_storage, m4_new, kept_push$int and
survey_op_reward for intern's 16 B copies).

- Any `call ptr @lp_*` now takes a site of its own, its kind the callee's name when no better one is
  known (intern, str_repeat, fs_list, ...). What the helper makes, in however many blocks and
  through whichever helpers it calls in turn, is that line's.
- When the call returns, @lp_site goes back to site 0, now named "(runtime) (no site) unsited": a
  block made with no site of its own says so instead of borrowing the last one.
- The ECS stores' grows and a mod's registered stores - the only allocations emitted outside
  emit_bind - take a site each.

Golden alloc_fence_sites: two lines take turns keeping memory, Text.repeat and a record, every frame
judged. Each report names its own line (25 x +32 B str_repeat at :11, 25 x +16 B new Box at :12);
the toolchain before this charges 23 of the 32 B texts to the new Box line. The other fence and arena
goldens are unchanged; ludic.base's tests pass; the game's frame ratchets are 0 on main 7cb2b164.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-29 00:40:28 +03:00
parent 48a8caa292
commit 6ab98292d2
8 changed files with 98453 additions and 79775 deletions
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4
selfhost/backend/game/emit_world.ludic
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@ -205,9 +205,11 @@ function emit_world_table() -> void {
emit("define i32 @ludic_register_prop(ptr %name, i32 %nfields) {\nentry:\n")
emit(" %dc = load i32, ptr @dyn_count\n %full = icmp slt i32 %dc, 32\n br i1 %full, label %do, label %rej\n")
emit("do:\n %rcap = load i32, ptr @L_cap\n %nf4 = mul i32 %nfields, 4\n %sz = mul i32 %nf4, %rcap\n %szl = sext i32 %sz to i64\n")
emit_site("ecs mod store")
emit(" %buf = call ptr @lp_malloc(i64 %szl)\n call ptr @memset(ptr %buf, i32 0, i64 %szl)\n")
emit(" %sp = getelementptr inbounds [32 x ptr], ptr @dynS, i32 0, i32 %dc\n store ptr %buf, ptr %sp\n")
emit(" %hcap = sext i32 %rcap to i64\n %hbuf = call ptr @lp_malloc(i64 %hcap)\n call ptr @memset(ptr %hbuf, i32 0, i64 %hcap)\n")
emit_site("ecs mod flags")
emit(" %hcap = sext i32 %rcap to i64\n %hbuf = call ptr @lp_malloc(i64 %hcap)\n store i32 0, ptr @lp_site\n call ptr @memset(ptr %hbuf, i32 0, i64 %hcap)\n")
emit(" %hp = getelementptr inbounds [32 x ptr], ptr @dynH, i32 0, i32 %dc\n store ptr %hbuf, ptr %hp\n")
emit(" %fp = getelementptr inbounds [32 x i32], ptr @dynF, i32 0, i32 %dc\n store i32 %nfields, ptr %fp\n")
emit(" %np = getelementptr inbounds [32 x ptr], ptr @dynName, i32 0, i32 %dc\n store ptr %name, ptr %np\n")