ludic/selfhost/emit_intrin.ludic
Orkuncakilkaya effb3f637f refactor(lang): rename the ptr/ptrs types to pointer/pointers
Expand the abbreviated pointer types to full words on the language surface:
  ptr   ->  pointer     (a raw address / FFI handle)
  ptrs  ->  pointers    (a buffer of pointers)

The Ludic type name is distinct from LLVM's own `ptr` spelling: llty() maps
`pointer`/`pointers` to LLVM `ptr`, and the emitted IR keeps `ptr`, so only
the Ludic-level surface changes. Rewrites type annotations across all
sources, the 8 hardcoded pointer type-tags, the `pointers`-buffer indexing
in emit_addr, the grammars/LSP/JetBrains tokens, and the docs
(type-ptr -> type-pointer, type-ptrs -> type-pointers). int/bool keep their
conventional short spelling (like Math).

Reseeded; C-free fixpoint holds; all suites green (45/24/29); site + check.py OK.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-30 01:58:54 +03:00

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# emit_intrin.ludic — the low-level intrinsics the self-host source uses, each
# lowered to the same libc/inline IR the C backend emits. Returns a Val via
# g_intrin_val and sets g_intrin_ok when `name` was an intrinsic.
var g_intrin_ok: bool = false
# is `name` a low-level intrinsic? A pure name check, so it can gate dispatch
# without evaluating arguments (which could clobber shared state).
function is_intrinsic(name: pointer) -> bool {
if (name == "resize") { return true }
if (name == "file_open") or (name == "file_read") or (name == "file_write") { return true }
if (name == "file_seek") or (name == "file_tell") or (name == "file_close") { return true }
if (name == "arg_count") or (name == "arg") or (name == "exit") { return true }
if (name == "file_stderr") or (name == "file_stdout") { return true }
if (name == "run") or (name == "getenv") { return true }
return false
}
# emit " <r> = <rest>\n" and return r
function emit_bind(rest: pointer) -> pointer { let r = nreg(); emit(" "); emit(r); emit(" = "); emit(rest); emit("\n"); return r }
function arg_code(e: Node, i: int) -> pointer { let v = emit_expr(e.kids[i]); return v.code }
function emit_intrinsic(name: pointer, e: Node) -> Val {
g_intrin_ok = true
# ptr_null / ptr_is_null are the `null` literal and `x == null` now.
# mem_alloc is bytes(n) / words(n) now (see emit_call).
if (name == "resize") {
let p = arg_code(e, 0); let n = arg_code(e, 1)
let w = emit_bind(`zext i32 {n} to i64`)
return val(emit_bind(`call ptr @realloc(ptr {p}, i64 {w})`), "pointer")
}
if (name == "file_open") {
let p = arg_code(e, 0); let m = arg_code(e, 1)
return val(emit_bind(`call ptr @fopen(ptr {p}, ptr {m})`), "pointer")
}
if (name == "file_read") or (name == "file_write") {
let f = arg_code(e, 0); let b = arg_code(e, 1); let n = arg_code(e, 2)
let w = emit_bind(`zext i32 {n} to i64`)
var fn2 = "@fread"
if (name == "file_write") { fn2 = "@fwrite" }
let r = emit_bind(`call i64 {fn2}(ptr {b}, i64 1, i64 {w}, ptr {f})`)
return val(emit_bind(`trunc i64 {r} to i32`), "int")
}
if (name == "file_seek") {
let f = arg_code(e, 0); let off = arg_code(e, 1); let wh = arg_code(e, 2)
let o = emit_bind(`sext i32 {off} to i64`)
return val(emit_bind(`call i32 @fseek(ptr {f}, i64 {o}, i32 {wh})`), "int")
}
if (name == "file_tell") {
let f = arg_code(e, 0)
let r = emit_bind(`call i64 @ftell(ptr {f})`)
return val(emit_bind(`trunc i64 {r} to i32`), "int")
}
if (name == "file_close") {
let f = arg_code(e, 0)
emit(" call i32 @fclose(ptr "); emit(f); emit(")\n")
return val("0", "void")
}
# print_str / print_int are the polymorphic `print(x)` builtin now (emit_call).
if (name == "arg_count") { return val(emit_bind("load i32, ptr @L_argc"), "int") }
if (name == "arg") {
let i = arg_code(e, 0)
let v = emit_bind("load ptr, ptr @L_argv")
let q = emit_bind(`getelementptr ptr, ptr {v}, i32 {i}`)
return val(emit_bind(`load ptr, ptr {q}`), "string")
}
if (name == "exit") {
let n = arg_code(e, 0)
emit(" call void @exit(i32 "); emit(n); emit(")\n")
emit(" unreachable\n")
g_term = true
return val("0", "void")
}
if (name == "file_stderr") { return val(emit_bind("load ptr, ptr @__stderrp"), "pointer") }
if (name == "file_stdout") { return val(emit_bind("load ptr, ptr @__stdoutp"), "pointer") }
if (name == "run") {
let c = arg_code(e, 0)
return val(emit_bind(`call i32 @system(ptr {c})`), "int")
}
if (name == "getenv") {
let n = arg_code(e, 0)
return val(emit_bind(`call ptr @getenv(ptr {n})`), "string")
}
# bitwise ops are the operators & | ^ << >> ~ now (see emit_bin / p_mul).
# peek32 / poke32 are `words` indexing now: w[i] and w[i] = v (see emit_index_addr).
g_intrin_ok = false
return val("0", "void")
}