/* * 941_tuple_slot_layout_run — tuple arc C-t0: SLOT layout is the tuple * SSoT (user-ratified). The checker's TY_TUPLE size counts the stride * cgen's cursor transport actually writes — a str/slice its 24B header, * everything else (narrow scalars included) one 8B eightbyte — and the * t.N read walks stride the same slots. * * Pre-C-t0 there were TWO answers: the checker summed PACKED element * sizes ((u32,u32) = 8B) while every cursor transport site strode 8B * slots (16B). The 16B shapes were blind to the split (slot == packed); * the packed shapes hit it everywhere: * - `let t: (u32,u32) = f()` — cstage's receive keys on the checker * size (16/32), so sz=8 fell to the generic single-word store * (word 1 DROPPED) and the packed read walk then read the wrong * offsets. wwstage (slot-keyed throughout) was runtime-CORRECT * here — inverted polarity vs the 16B #33 map, gate-blind. * - a (u32,u32) by-value param: cgfn's receive walk spilled * 8B/element into a local sized from the PACKED checker size (8B) * — word 1 landed on the saved-BP slot, frame corruption, SIGSEGV. * - a mixed (u32,f64)/(u32,str) tuple: packed sz (12/28) missed the * 16/32 receive arms entirely — silent drop on both stages. * * The send-side ABI skew (#32, C-t2) and the wwstage literal-let * receive (#33, C-t1) are SEPARATE bugs pinned by their own commits; * this test pins the layout unification only: * * row | shape | want * ---------------------+--------------------------------------+----- * letcall_packed | let t:(u32,u32)=f(); t.0/t.1 | 0 * letcall_float_packed | (u32,f64) from call, X0 element | 0 * letcall_signed_packed| (i32,i32) negatives — MOVSXD reads | 0 * letcall_mixed_packed | (u32,str): 28B packed missed the 32B | * | arm; len(t.1) strides a full slot | 0 * len_elem_packed | len(t.1) of (u32,str) — #235 arm's | * | slot stride (was BP+4+8) | (in mixed row) * letcall_16_neutral | (i64,i64) — slot==packed, anchor | 0 * letcall_32_neutral | (i64,str) — 32B arm, anchor | 0 * mlet_packed_neutral | let (a,b) = f() packed — per-element | * | locals, layout-independent anchor | 0 * * Every row also asserts cstage/wwstage asm byte-id. * NNN<950, self-contained (/tmp, no imports) — rule-14's * selfhost-sibling race does not apply (903/940/945 precedent). */ #include #include #include #include #include #include static int runwait(const char *cmd) { int rc = system(cmd); if (rc == -1) return -1; if (WIFEXITED(rc)) return WEXITSTATUS(rc); return -1; } static int slurp_eq(const char *a, const char *b) { FILE *fa = fopen(a, "rb"); FILE *fb = fopen(b, "rb"); if (!fa || !fb) { if (fa) fclose(fa); if (fb) fclose(fb); return -1; } int rc = 0; for (;;) { int ca = fgetc(fa), cb = fgetc(fb); if (ca != cb) { rc = -1; break; } if (ca == EOF) break; } fclose(fa); fclose(fb); return rc; } #define K_RUN 0 /* build+run both drivers, exit==want, + cs==ww byte-id */ #define K_BUILDERR 1 /* build must FAIL with experr on BOTH drivers (rule 7) */ struct row { const char *label; const char *src; int want; int kind; const char *experr; }; /* errlog_has — a BUILDERR row must fail WITH its diagnostic; any other * failure (parse error, crash) is a vacuous reject (940 precedent). */ static int errlog_has(const char *path, const char *needle) { FILE *f = fopen(path, "rb"); if (!f) return 0; char buf[8192]; size_t got = fread(buf, 1, sizeof buf - 1, f); fclose(f); buf[got] = '\0'; return strstr(buf, needle) != NULL; } static const struct row rows[] = { { "letcall_packed", "package main;\n" "fn f() (u32, u32) = {\n" " return (3, 4);\n" "};\n" "export fn main() i32 = {\n" " let t: (u32, u32) = f();\n" " if (t.0 != 3) { return 1; };\n" " if (t.1 != 4) { return 2; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "letcall_float_packed", "package main;\n" "fn f() (u32, f64) = {\n" " let a: u32 = 9;\n" " let x: f64 = 2.5;\n" " return (a, x);\n" "};\n" "export fn main() i32 = {\n" " let t: (u32, f64) = f();\n" " if (t.0 != 9) { return 1; };\n" " if (t.1 != 2.5) { return 2; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "letcall_signed_packed", "package main;\n" "fn f() (i32, i32) = {\n" " let a: i32 = -5;\n" " let b: i32 = -6;\n" " return (a, b);\n" "};\n" "export fn main() i32 = {\n" " let t: (i32, i32) = f();\n" " if (t.0 != -5) { return 1; };\n" " if (t.1 != -6) { return 2; };\n" " if (t.0 + t.1 != -11) { return 3; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "letcall_mixed_packed", "package main;\n" "fn f() (u32, str) = {\n" " let a: u32 = 7;\n" " let s: str = \"hello\";\n" " return (a, s);\n" "};\n" "export fn main() i32 = {\n" " let t: (u32, str) = f();\n" " if (t.0 != 7) { return 1; };\n" " if (len(t.1) != 5) { return 2; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "letcall_16_neutral", "package main;\n" "fn f() (i64, i64) = {\n" " return (41, 17);\n" "};\n" "export fn main() i32 = {\n" " let t: (i64, i64) = f();\n" " if (t.0 != 41) { return 1; };\n" " if (t.1 != 17) { return 2; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "letcall_32_neutral", "package main;\n" "fn f() (i64, str) = {\n" " let a: i64 = 12;\n" " let s: str = \"wxyz\";\n" " return (a, s);\n" "};\n" "export fn main() i32 = {\n" " let t: (i64, str) = f();\n" " if (t.0 != 12) { return 1; };\n" " if (len(t.1) != 4) { return 2; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "mlet_packed_neutral", "package main;\n" "fn f() (u32, u32) = {\n" " return (3, 4);\n" "};\n" "export fn main() i32 = {\n" " let (a, b) = f();\n" " if (a != 3) { return 1; };\n" " if (b != 4) { return 2; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, /* ---- C-t1 (#33): the let RECEIVE re-keyed onto the declared * type's register classify. Pre-C-t1 wwstage keyed on producer * SHAPE (mixed-str syntactic / rettupleof N_CALL) so a * scalar-scalar LITERAL matched neither and dropped word 1; * cstage keyed on sz==16/32 so 24B 3-scalar shapes dropped words * on BOTH sources. ---- */ { "t1_lit_packed", "package main;\n" "fn second() u32 = {\n" " let t: (u32, u32) = (3, 4);\n" " if (t.0 != 3) { return 99; };\n" " return t.1;\n" "};\n" "export fn main() i32 = {\n" " if (second() != 4) { return 1; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "t1_lit_16", "package main;\n" "export fn main() i32 = {\n" " let t: (i64, i64) = (3, 4);\n" " if (t.0 != 3) { return 1; };\n" " if (t.1 != 4) { return 2; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "t1_lit_mixed", "package main;\n" "export fn main() i32 = {\n" " let t: (i64, str) = (12, \"wxyz\");\n" " if (t.0 != 12) { return 1; };\n" " if (len(t.1) != 4) { return 2; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "t1_lit_3scalar", "package main;\n" "fn second() i64 = {\n" " let t: (i64, i64, i64) = (3, 4, 5);\n" " if (t.0 != 3) { return -1; };\n" " if (t.1 != 4) { return -2; };\n" " return t.2;\n" "};\n" "export fn main() i32 = {\n" " if (second() != 5) { return 1; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "t1_call_3scalar", "package main;\n" "fn f() (i64, i64, i64) = {\n" " return (7, 8, 9);\n" "};\n" "export fn main() i32 = {\n" " let t: (i64, i64, i64) = f();\n" " if (t.0 != 7) { return 1; };\n" " if (t.1 != 8) { return 2; };\n" " if (t.2 != 9) { return 3; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "t1_call_noannot_neutral", "package main;\n" "fn f() (i64, i64) = {\n" " return (3, 4);\n" "};\n" "export fn main() i32 = {\n" " let t = f();\n" " if (t.0 != 3) { return 1; };\n" " if (t.1 != 4) { return 2; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, /* ---- C-t2 (#32): the by-value tuple ARG send. node_tuplearg * was N_CALL-scoped (and its comment FALSELY claimed the rest * loud-stop): a tuple ident/literal/unwrap arg fell to the * scalar single-PUSHQ default, skewing every later arg register * — the callee read garbage word 2 (packed shapes SIGSEGV'd * pre-C-t0). Now every cursor-filling producer rides the #163 * @tupargscr restage; any other tuple-typed source loud-stops. ---- */ { "t2_param_packed", "package main;\n" "fn pick(t: (u32, u32), k: i32) u32 = {\n" " if (k == 0) { return t.0; };\n" " return t.1;\n" "};\n" "export fn main() i32 = {\n" " let t: (u32, u32) = (41, 17);\n" " if (pick(t, 0) != 41) { return 1; };\n" " if (pick(t, 1) != 17) { return 2; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "t2_param_16", "package main;\n" "fn pick(t: (i64, i64), k: i32) i64 = {\n" " if (k == 0) { return t.0; };\n" " return t.1;\n" "};\n" "export fn main() i32 = {\n" " let t: (i64, i64) = (41, 17);\n" " if (pick(t, 0) != 41) { return 1; };\n" " if (pick(t, 1) != 17) { return 2; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "t2_mixed_order", "package main;\n" "fn g(a: i64, t: (u32, u32), b: i64) i64 = {\n" " return a*1000 + (t.0: i64)*100 + (t.1: i64)*10 + b;\n" "};\n" "fn h(t: (i64, i64), s: str, k: i64) i64 = {\n" " return t.0 + t.1 + (len(s): i64) + k;\n" "};\n" "export fn main() i32 = {\n" " let t: (u32, u32) = (3, 4);\n" " if (g(1, t, 2) != 1342) { return 1; };\n" " let u: (i64, i64) = (10, 20);\n" " if (h(u, \"abc\", 7) != 40) { return 2; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "t2_lit_arg", "package main;\n" "fn pick(t: (i64, i64), k: i32) i64 = {\n" " if (k == 0) { return t.0; };\n" " return t.1;\n" "};\n" "export fn main() i32 = {\n" " if (pick((41, 17), 0) != 41) { return 1; };\n" " if (pick((41, 17), 1) != 17) { return 2; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "t2_float_param", "package main;\n" "fn fsum(t: (f64, i64)) f64 = {\n" " return t.0 + (t.1: f64);\n" "};\n" "export fn main() i32 = {\n" " let t: (f64, i64) = (2.5, 4);\n" " if (fsum(t) != 6.5) { return 1; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "t2_unwrap_arg", "package main;\n" "fn mk() ((i64, i64) | nomem) = {\n" " let a: i64 = 5;\n" " let b: i64 = 6;\n" " return (a, b);\n" "};\n" "fn sum(t: (i64, i64)) i64 = {\n" " return t.0 + t.1;\n" "};\n" "export fn main() i32 = {\n" " if (sum(mk()!) != 11) { return 1; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, /* ken's >6-GP-pressure stress: 4 leading scalars + the 2-word * tuple + a 7th GP word — the restage drain fills the INTEGER * cursor past the tuple and the 7th word must still land in the * stack arg class, not be eaten or shifted by the tuple's pops. */ { "t2_gp_pressure", "package main;\n" "fn f(a: i64, b: i64, c: i64, d: i64, t: (i64, i64), e: i64) i64 = {\n" " if (e != 60) { return -1; };\n" " if (a != 1 || b != 2 || c != 3 || d != 4) { return -2; };\n" " return t.0 * 100 + t.1;\n" "};\n" "export fn main() i32 = {\n" " let t: (i64, i64) = (7, 9);\n" " if (f(1, 2, 3, 4, t, 60) != 709) { return 1; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, /* a tuple arg mixed with a VARIADIC tail rides the same restage — * positive pin of the variadic interaction (ken demand 2). */ { "t2_variadic_after_tuple", "package main;\n" "fn g(t: (i64, i64), xs: i64...) i64 = {\n" " let s: i64 = t.0 + t.1;\n" " for (let x .. xs) { s += x; };\n" " return s;\n" "};\n" "export fn main() i32 = {\n" " let t: (i64, i64) = (3, 4);\n" " if (g(t, 1, 2) != 10) { return 1; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, /* rule-7 (ken demand 1): a NESTED composite element (tuple-in- * tuple here) occupies more than the one GP word the restage walk * counts — pre-guard the checker accepted it and it ran WRONG * (inner words skewed; wwstage SIGSEGV'd). Loud until a consumer * motivates the wiring. */ { "t2_reject_nested_elem_arg", "package main;\n" "fn f(t: ((i64, i64), i64)) i64 = {\n" " return t.1;\n" "};\n" "export fn main() i32 = {\n" " let inner: (i64, i64) = (1, 2);\n" " let t: ((i64, i64), i64) = (inner, 9);\n" " if (f(t) != 9) { return 1; };\n" " return 0;\n" "};\n", 0, K_BUILDERR, "tuple arg element kind unsupported" }, /* variadic-of-tuples ((i64,i64)...) stays LOUD via the * tuple-in-slice read surface — bounded, not silent (demand 2). */ { "t2_reject_variadic_of_tuples", "package main;\n" "fn first(ts: (i64, i64)...) i64 = {\n" " if (len(ts) == 0) { return -1; };\n" " return ts[0].0;\n" "};\n" "export fn main() i32 = {\n" " let t: (i64, i64) = (3, 4);\n" " if (first(t) != 3) { return 1; };\n" " return 0;\n" "};\n", 0, K_BUILDERR, "unsupported field-read shape" }, /* rule-7: a tuple arg from a source whose cgexpr does NOT fill * the cursor (here a struct-field chain) dies loud — pre-C-t2 * it fell to the scalar single-PUSHQ default silently. */ { "t2_reject_chain_arg", "package main;\n" "type holder = struct { t: (i64, i64) };\n" "fn sum(t: (i64, i64)) i64 = {\n" " return t.0 + t.1;\n" "};\n" "export fn main() i32 = {\n" " let h: holder = holder{ t = (1, 2) };\n" " if (sum(h.t) != 3) { return 1; };\n" " return 0;\n" "};\n", 0, K_BUILDERR, "tuple arg from unsupported source shape" }, /* rule-7: an over-cap tuple ident arg louds at the slot-to-cursor * cap (the #10 sret follow-up), never a partial push. */ { "t2_reject_overcap_ident_arg", "package main;\n" "fn f(t: (str, str)) i64 = {\n" " return (len(t.0) + len(t.1)): i64;\n" "};\n" "fn g() (str, str) = {\n" " return (\"ab\", \"cde\");\n" "};\n" "export fn main() i32 = {\n" " let t: (str, str) = g();\n" " if (f(t) != 5) { return 1; };\n" " return 0;\n" "};\n", 0, K_BUILDERR, "tuple ident exceeds register-return ABI capacity" }, /* fold-4 substrate pin (charset_range_item = [](u32,u32)): the * tuple-in-slice consumer shape is LOUD today, both stages — * wiring it is fold-4's prerequisite work, not a silent gap. */ { "charset_slice_append_reject", "package main;\n" "export fn main() i32 = {\n" " let s: [](u32, u32) = [];\n" " append(s, (1, 2));\n" " if (len(s) != 1) { return 1; };\n" " return 0;\n" "};\n", 0, K_BUILDERR, "element kind unsupported" }, /* ---- C-t3 (#48): GLOBAL tuples. Pre-C-t3 the definition was * SILENTLY skipped (let_emit_size 0 → no DATA, no diagnostic); * cstage element reads then read BP-frame garbage (localfind→0) * and wwstage mis-emitted the field index as a symbol * (`MOVQ 0(SB), AX`). Now: slot-laid DATAW (+ DATAR str-element * ptr patches), element reads + len(g.N) via LEAQ sym(SB); * unsupported element inits and the whole-tuple-as-value shape * die LOUD. ---- */ { "t3_global_elem", "package main;\n" "let g: (str, i64) = (\"hello\", 9);\n" "let h: (u32, u32) = (5, 6);\n" "export fn main() i32 = {\n" " if (len(g.0) != 5) { return 1; };\n" " if (g.1 != 9) { return 2; };\n" " if (h.0 != 5) { return 3; };\n" " if (h.1 != 6) { return 4; };\n" " return 0;\n" "};\n", 0, K_RUN, NULL }, { "t3_reject_float_global", "package main;\n" "let g: (f64, i64) = (2.5, 4);\n" "export fn main() i32 = {\n" " if (g.1 != 4) { return 1; };\n" " return 0;\n" "};\n", 0, K_BUILDERR, "unsupported element init (int/str literals only; rule 7)" }, { "t3_reject_whole_value", "package main;\n" "let g: (i64, i64) = (3, 4);\n" "export fn main() i32 = {\n" " let q: (i64, i64) = g;\n" " if (q.0 != 3) { return 1; };\n" " return 0;\n" "};\n", 0, K_BUILDERR, "global tuple as a first-class value unwired" }, /* pre-existing loud (no-regress pin): global tuple element WRITE. */ { "t3_reject_global_write", "package main;\n" "let g: (i64, i64) = (3, 4);\n" "export fn main() i32 = {\n" " g.0 = 7;\n" " return 0;\n" "};\n", 0, K_BUILDERR, "unsupported assign target shape" }, }; /* build+run via a driver (ww / ww_ww); returns 0 pass, nonzero fail. */ static int run_driver(const char *driver, const struct row *r, int i) { char src[96], tmpdir[96], errf[96], cmd[1024]; snprintf(src, sizeof src, "/tmp/tsl_%d_%d.ww", getpid(), i); snprintf(tmpdir, sizeof tmpdir, "/tmp/tsl_%d_d_%d", getpid(), i); snprintf(errf, sizeof errf, "/tmp/tsl_%d_e_%d", getpid(), i); FILE *f = fopen(src, "wb"); if (!f) return -1; fputs(r->src, f); fclose(f); mkdir(tmpdir, 0755); snprintf(cmd, sizeof cmd, "cd %s && %s build %s >/dev/null 2>%s", tmpdir, driver, src, errf); int brc = runwait(cmd); if (r->kind == K_BUILDERR) { int ok = (brc != 0) && (r->experr == NULL || errlog_has(errf, r->experr)); if (!ok) fprintf(stderr, "row[%s]: %s expected loud builderr " "\"%s\" (brc=%d)\n", r->label, driver, r->experr ? r->experr : "", brc); unlink(src); unlink(errf); rmdir(tmpdir); return ok ? 0 : 1; } if (brc != 0) { fprintf(stderr, "row[%s]: build via %s failed\n", r->label, driver); unlink(src); unlink(errf); rmdir(tmpdir); return -1; } const char *base = strrchr(src, '/'); base = base ? base + 1 : src; char outbin[256]; snprintf(outbin, sizeof outbin, "%s/%s", tmpdir, base); char *dot = strrchr(outbin, '.'); if (dot && strcmp(dot, ".ww") == 0) *dot = '\0'; int got = runwait(outbin); unlink(src); unlink(outbin); unlink(errf); rmdir(tmpdir); if (got != r->want) { fprintf(stderr, "row[%s]: %s exit %d, want %d\n", r->label, driver, got, r->want); return 1; } return 0; } /* cs==ww .s byte-id (rule 10). */ static int asm_byte_identical(const char *bin, const struct row *r, int i) { char src[96], cs[96], ws[96], cmd[1024]; snprintf(src, sizeof src, "/tmp/tsl_asm_%d_%d.ww", getpid(), i); snprintf(cs, sizeof cs, "/tmp/tsl_asm_%d_%d_c.s", getpid(), i); snprintf(ws, sizeof ws, "/tmp/tsl_asm_%d_%d_w.s", getpid(), i); FILE *f = fopen(src, "wb"); if (!f) return -1; fputs(r->src, f); fclose(f); snprintf(cmd, sizeof cmd, "%s/w6c -o %s %s 2>/dev/null", bin, cs, src); if (runwait(cmd) != 0) { fprintf(stderr, "row[%s]: w6c errored\n", r->label); unlink(src); return -1; } snprintf(cmd, sizeof cmd, "%s/w6c_ww -o %s %s 2>/dev/null", bin, ws, src); if (runwait(cmd) != 0) { fprintf(stderr, "row[%s]: w6c_ww errored\n", r->label); unlink(src); unlink(cs); return -1; } int rc = slurp_eq(cs, ws); if (rc != 0) fprintf(stderr, "row[%s]: cstage vs wwstage asm differs\n", r->label); unlink(src); unlink(cs); unlink(ws); return rc; } int main(void) { const char *bin = getenv("BIN"); if (!bin) bin = "out/bin"; char absbin[2080]; if (bin[0] != '/') { char cwd[1024]; if (getcwd(cwd, sizeof cwd) == NULL) return 1; snprintf(absbin, sizeof absbin, "%s/%s", cwd, bin); bin = absbin; } char cdrv[2120], wdrv[2120]; snprintf(cdrv, sizeof cdrv, "%s/ww", bin); snprintf(wdrv, sizeof wdrv, "%s/ww_ww", bin); int n = (int)(sizeof rows / sizeof rows[0]); int total = 0, fail = 0; for (int i = 0; i < n; i++) { total++; if (run_driver(cdrv, &rows[i], i) != 0) fail++; } if (access(wdrv, X_OK) == 0) { for (int i = 0; i < n; i++) { total++; if (run_driver(wdrv, &rows[i], i) != 0) fail++; } for (int i = 0; i < n; i++) { if (rows[i].kind == K_BUILDERR) continue; total++; if (asm_byte_identical(bin, &rows[i], i) != 0) fail++; } } if (fail) { fprintf(stderr, "tuple_slot_layout: %d/%d checks failed\n", fail, total); return 1; } printf("tuple_slot_layout: %d/%d ok\n", total, total); return 0; }