/* * 944_alias_cgen_b6_run — #5 alias arc F2b (B6 train): the cgen.c * cgexpr/cgstmt INLINE single-peel sweep through type_chase_named, by * consumer family — c1 assign/reassign (9 lines), c2 call-arg (8), * c3 addr-of/field-walk/index spine (14), c4 cast/is/try (10), * c5 reads/len/globals (8). All cs-only: every graduation is a * DIVERGE→byte-id flip (cs aligns UP to ww's already-chasing asm); * zero selfhost/lib bytes move across the train, so the _ww binaries * stay bit-identical (the crossing detector). * * Row sources are ken's B6 first-position oracle probes * (/tmp/ken_b5/src/kb6_*, .ai/ken-b6-oracle.md, matrix at 4cac1cb). * * row | shape (oracle row) | cs/ww * --------------------+-------------------------------------+------ * ---- c1 (assign/reassign: :6359 :6403/:6405 :6460/:6462 ------- * :6518 + cgstmt :11696 :12047 :13625) ------------------- * streassign_2lvl | kb6_streassign: 2-lvl alias str | * | reassign `b = a` — cs copied WORD0 | * | (ptr) ONLY, len/cap stale (silent | * | exit 1); the :6518 lu gate fell to | * | the scalar default. LIVE graduation | 0/0 * wstore_a (B5 file) | kb5_wstore_a graduates K_RUN_NOID → | * | K_RUN in 944_alias_cgen_b5_run.c — | * | the ident-lhs N_ASSIGN tagged gate | * | (:6359) was the divergence (ken | * | C1-CORR-2, he owns the flip) | 0/0 * sreassign_2lvl | kb6_sreassign: whole-struct alias | * | reassign — latent control | 0/0 * dassign_2lvl | kb6_dassign: (*p).f= over alias ptr | * | — latent control | 0/0 * * K_RUN rows build+run BOTH drivers (cs exit==cswant, ww exit==wwwant) * and assert cstage/wwstage asm byte-id. K_BUILDERR rows must FAIL * with experr on BOTH drivers; experr_ww overrides the ww-side text * when the two stages loud at DIFFERENT sites (per-stage texts). * NNN<950, self-contained /tmp sources, no imports (944 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, exits==wants, + byte-id */ #define K_BUILDERR 1 /* build FAILS with experr on BOTH drivers; * experr_ww overrides the ww-side text */ struct row { const char *label; const char *src; int cswant; int wwwant; int kind; const char *experr; const char *experr_ww; }; /* errlog_has — a builderr cell must fail WITH its diagnostic; any other * failure (parse error, crash, hang-kill) 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[] = { /* ---- c1: assign/reassign family */ /* LIVE c1 graduation: the :6518 reassign gate single-peeled the * 2-level alias str lhs, missed the TY_STR kind test, and fell * to the scalar default — ONE MOVQ stored the ptr word, len/cap * kept the dead value's header (cs silent exit 1, ww correct: * full 3-word {ptr,len,cap} store, Hare value semantics). */ { "streassign_2lvl", "package main;\n" "type ms0 = str;\n" "type ms = ms0;\n" "export fn main() i32 = {\n" " let a: ms = \"hello\";\n" " let b: ms = \"x\";\n" " b = a;\n" " if (len(b) != 5) { return 1; };\n" " return 0;\n" "};\n", 0, 0, K_RUN, NULL, NULL }, { "sreassign_2lvl", "package main;\n" "type st0 = struct { a: i64, b: i64, c: i64 };\n" "type st = st0;\n" "export fn main() i32 = {\n" " let x: st; x.a = 1; x.b = 2; x.c = 3;\n" " let y: st; y.a = 0; y.b = 0; y.c = 0;\n" " y = x;\n" " if (y.c != 3 || y.b != 2) { return 1; };\n" " return 0;\n" "};\n", 0, 0, K_RUN, NULL, NULL }, { "dassign_2lvl", "package main;\n" "type st0 = struct { a: i64, b: i64 };\n" "type st = st0;\n" "export fn main() i32 = {\n" " let x: st; x.a = 1; x.b = 2;\n" " let p: *st = &x;\n" " (*p).b = 9;\n" " if (x.b != 9) { return 1; };\n" " return 0;\n" "};\n", 0, 0, K_RUN, NULL, NULL }, }; static int run_driver(const char *driver, const struct row *r, int i, int expect_err, int want, const char *experr) { char src[96], tmpdir[96], errf[96], cmd[1024]; snprintf(src, sizeof src, "/tmp/ab6_%d_%d.ww", getpid(), i); snprintf(tmpdir, sizeof tmpdir, "/tmp/ab6_%d_d_%d", getpid(), i); snprintf(errf, sizeof errf, "/tmp/ab6_%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 && timeout 20 %s build %s >/dev/null 2>%s", tmpdir, driver, src, errf); int brc = runwait(cmd); if (expect_err) { int ok = (brc != 0) && (experr == NULL || errlog_has(errf, experr)); if (!ok) fprintf(stderr, "row[%s]: %s expected loud builderr " "\"%s\" (brc=%d)\n", r->label, driver, experr ? 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 != want) { fprintf(stderr, "row[%s]: %s exit %d, want %d\n", r->label, driver, got, want); return 1; } return 0; } 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/ab6_asm_%d_%d.ww", getpid(), i); snprintf(cs, sizeof cs, "/tmp/ab6_asm_%d_%d_c.s", getpid(), i); snprintf(ws, sizeof ws, "/tmp/ab6_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++; int cs_err = rows[i].kind == K_BUILDERR; if (run_driver(cdrv, &rows[i], i, cs_err, rows[i].cswant, rows[i].experr) != 0) fail++; } if (access(wdrv, X_OK) == 0) { for (int i = 0; i < n; i++) { total++; int ww_err = rows[i].kind == K_BUILDERR; const char *we = rows[i].experr_ww ? rows[i].experr_ww : rows[i].experr; if (run_driver(wdrv, &rows[i], i, ww_err, rows[i].wwwant, we) != 0) fail++; } for (int i = 0; i < n; i++) { if (rows[i].kind != K_RUN) continue; total++; if (asm_byte_identical(bin, &rows[i], i) != 0) fail++; } } if (fail) { fprintf(stderr, "alias_cgen_b6: %d/%d checks failed\n", fail, total); return 1; } printf("alias_cgen_b6: %d/%d ok\n", total, total); return 0; }