Orkuncakilkaya
df6955e609
Answering your readability point directly: the compiler's own string-building —
left uglier by the 7c `+` migration, e.g. `emit_bind(("load i32, ptr " + ip))` —
now reads as interpolation:
emit_bind(("load i32, ptr " + ip)) -> emit_bind(`load i32, ptr {ip}`)
emit_bind(("icmp eq i32 " + (kv + (", " + itoa(ak)))))
-> emit_bind(`icmp eq i32 {kv}, {itoa(ak)}`)
perr(("assign to unknown " + t.s)) -> perr(`assign to unknown {t.s}`)
164 concat chains across selfhost converted by a tool that flattens the `+` tree,
keeps call/index parens (only grouping parens are rewritten), and converts only
**brace-free** literals — LLVM IR structure strings full of `{`/`}` stay as `+`
rather than becoming awkward `{{`/`}}`. No new language surface; interpolation
already desugars to the same concat.
Reseeded (22565 lines); C-free fixpoint holds byte-for-byte (the strongest proof
the reconstruction is exact); goldens identical; 18/18.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
95 lines
5 KiB
Text
95 lines
5 KiB
Text
# emit_intrin2.ludic — the rest of the low-level intrinsics: raw memory, fixed
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# memory access, pointer arithmetic, stdio, time, and the windowing hooks.
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# Matches compiler/back/ir_intrin.c. Reached from emit_intrinsic's fall-through.
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var g_windowed: bool = false # headless by default (games read stdin / dump PPM)
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fn is_intrinsic2(name: ptr) -> bool {
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if (name == "mem_free") or (name == "mem_copy") or (name == "mem_set") { return true }
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if (name == "ptr_add") or (name == "read_byte") or (name == "write_byte") { return true }
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if (name == "str_len") or (name == "os_time") { return true }
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if (name == "peekf") or (name == "pokef") or (name == "as_fixed") or (name == "as_int") { return true }
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if (name == "peekp") or (name == "pokep") { return true }
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if (name == "is_windowed") or (name == "game_title") { return true }
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if (name == "win_open") or (name == "win_poll") or (name == "win_present") { return true }
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if (name == "win_running") or (name == "win_close") { return true }
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return false
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}
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fn emit_intrinsic2(name: ptr, e: Node) -> Val {
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if (name == "mem_free") {
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let p = arg_code(e, 0); emit(" call void @free(ptr "); emit(p); emit(")\n"); return val("0", "void")
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}
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if (name == "mem_copy") {
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let d = arg_code(e, 0); let s = arg_code(e, 1); let n = arg_code(e, 2)
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let w = emit_bind(`zext i32 {n} to i64`)
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emit(" call ptr @memcpy(ptr "); emit(d); emit(", ptr "); emit(s); emit(", i64 "); emit(w); emit(")\n")
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return val("0", "void")
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}
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if (name == "mem_set") {
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let p = arg_code(e, 0); let v = arg_code(e, 1); let n = arg_code(e, 2)
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let w = emit_bind(`zext i32 {n} to i64`)
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emit(" call ptr @memset(ptr "); emit(p); emit(", i32 "); emit(v); emit(", i64 "); emit(w); emit(")\n")
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return val("0", "void")
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}
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if (name == "ptr_add") {
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let p = arg_code(e, 0); let n = arg_code(e, 1)
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let g = nreg()
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emit(" "); emit(g); emit(" = getelementptr inbounds i8, ptr "); emit(p); emit(", i32 "); emit(n); emit("\n")
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return val(g, "ptr")
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}
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if (name == "read_byte") { return val(emit_bind("call i32 @getchar()"), "int") }
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if (name == "write_byte") {
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let v = arg_code(e, 0); emit(" call i32 @putchar(i32 "); emit(v); emit(")\n"); return val("0", "void")
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}
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if (name == "str_len") {
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let s = arg_code(e, 0)
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let r = emit_bind(`call i64 @strlen(ptr {s})`)
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return val(emit_bind(`trunc i64 {r} to i32`), "int")
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}
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if (name == "os_time") {
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let r = emit_bind("call i64 @time(ptr null)")
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return val(emit_bind(`trunc i64 {r} to i32`), "int")
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}
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if (name == "peekf") {
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let p = arg_code(e, 0); let i = arg_code(e, 1)
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let g = nreg(); emit(" "); emit(g); emit(" = getelementptr inbounds i32, ptr "); emit(p); emit(", i32 "); emit(i); emit("\n")
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return val(emit_bind(`load i32, ptr {g}`), "fixed")
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}
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if (name == "pokef") {
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let p = arg_code(e, 0); let i = arg_code(e, 1); let v = arg_code(e, 2)
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let g = nreg(); emit(" "); emit(g); emit(" = getelementptr inbounds i32, ptr "); emit(p); emit(", i32 "); emit(i); emit("\n")
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emit(" store i32 "); emit(v); emit(", ptr "); emit(g); emit("\n")
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return val("0", "void")
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}
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if (name == "peekp") {
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let p = arg_code(e, 0); let i = arg_code(e, 1)
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let g = nreg(); emit(" "); emit(g); emit(" = getelementptr inbounds ptr, ptr "); emit(p); emit(", i32 "); emit(i); emit("\n")
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return val(emit_bind(`load ptr, ptr {g}`), "ptr")
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}
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if (name == "pokep") {
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let p = arg_code(e, 0); let i = arg_code(e, 1); let v = arg_code(e, 2)
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let g = nreg(); emit(" "); emit(g); emit(" = getelementptr inbounds ptr, ptr "); emit(p); emit(", i32 "); emit(i); emit("\n")
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emit(" store ptr "); emit(v); emit(", ptr "); emit(g); emit("\n")
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return val("0", "void")
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}
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if (name == "as_fixed") { let a = emit_expr(e.kids[0]); return val(a.code, "fixed") }
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if (name == "as_int") { let a = emit_expr(e.kids[0]); return val(a.code, "int") }
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if (name == "is_windowed") { if g_windowed { return val("1", "bool") }; return val("0", "bool") }
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if (name == "game_title") { return val("@.gametitle", "str") }
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# windowing hooks — declared external; only reached on the is_windowed() branch
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if (name == "win_poll") { return val(emit_bind("call i32 @win_poll()"), "int") }
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if (name == "win_running") { return val(emit_bind("call i32 @win_running()"), "bool") }
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if (name == "win_open") {
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let a = arg_code(e, 0); let b = arg_code(e, 1); let c = arg_code(e, 2); let d = arg_code(e, 3)
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emit(" call void @win_open(i32 "); emit(a); emit(", i32 "); emit(b); emit(", i32 "); emit(c); emit(", ptr "); emit(d); emit(")\n")
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return val("0", "void")
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}
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if (name == "win_present") {
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let a = arg_code(e, 0); let b = arg_code(e, 1); let c = arg_code(e, 2)
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emit(" call void @win_present(ptr "); emit(a); emit(", i32 "); emit(b); emit(", i32 "); emit(c); emit(")\n")
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return val("0", "void")
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}
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if (name == "win_close") { emit(" call void @win_close()\n"); return val("0", "void") }
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return val("0", "void")
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}
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