/* * 956_tuprecv_f64_run — runtime + byte-id regression net for #105 and * the #164 (#107) multi-float extension. * * #164 (#107): a multi-float tuple return (e.g. (f64,f64)) mis-routes — * the SEND emitted every float through X0 (cgexpr clobbers X0 per * element), so two floats collided on X0 and the receive read both from * X0. The fix gives the tuple return a SysV SSE cursor [X0,X1] parallel * to the integer cursor [AX,DX,CX,R8]: a float rides the next XMM on an * INDEPENDENT counter (ref/qbe/amd64/sysv.c retr). The SEND spills each * float to @tupfscr as it walks (X0 is clobbered by later elements) and * reloads X0/X1 by SSE index after the integer pops; every receive site * (single-var 16B/32B, destructure, reassign) reads the float from its * SSE-cursor reg. SSE caps at 2 (X0,X1) — (f64,f64,f64) is over-cap, so * it returns via sret (#10 Fold A SEND + Fold B destructure RECEIVE); the * f64x3_recv row asserts that round-trip works in both stages. * * #105 (original): a tuple-from-call receive corrupts the f64 word when * the callee is BRANCHED. Covers ALL THREE receive forms, which share the * #83 tuple_rseq cursor and all carried the same defect: * 1. SINGLE-VAR `let r = norm(); ...r.0` (cglet 16B-tuple branch) * 2. DESTRUCTURE `let (m,i) = norm()` (N_MLET / cgmlet+tupstore) * 3. REASSIGN `m,i = norm()` (N_MASSIGN / cgmassign+tupstore) * * Root (#105, a #103-FACE-Z regression): a (f64,i64)/(i64,f64) tuple * returns its f64 word in X0 (the SSE return reg) and its integer word * in an integer reg (tuple_rseq AX/DX). All three receives spilled the * f64 word via MOVQ from the integer cursor — but that reg holds GARBAGE * (the f64 is in X0). #103-FACE-Z's field read (MOVSD slot,X0) then read * that garbage. The fix makes every receive spill CLASS-AWARE: an f64/f32 * word spills `MOVSD/MOVSS X0, slot`, an integer word spills `MOVQ * , slot` (as before). cstage cgen.c (3 sites) + wwstage cgenstmt.ww * (cglet branch + the shared tupstore helper, which covers cgmlet and * cgmassign), identically. * * WHY BRANCHED CALLEES: a SINGLE-return callee masks the bug via * register coincidence — a float-literal return leaves the f64 bit * pattern in AX (literal materialise goes through AX), so MOVQ AX,slot * happens to store the right bits; and X0 stays live to the receive. A * BRANCHED / multi-statement callee whose f64 word is a non-literal * (e.g. an f64 param) has an inner CALL clobber AX, so the integer-reg * spill stores garbage. The bug rows below therefore all use branched * callees with an f64-param word — single-return rows are gate-blind to * #105 (this is the gate lesson the task pins). * * GATE-BLIND TO BYTE-ID ALONE: both stages are symmetric-WRONG on master * (both emit MOVQ AX,slot), so the cs==ww .s gate HOLDS on master for * the bug rows — they diverge only at RUNTIME. Each row carries BOTH * dimensions (modelled on 954_tuprecv_run): * (a) cstage `ww build` + run, asserting the exit code — this is what * catches #105 (master returns the wrong exit). * (b) w6c vs w6c_ww `.s` cmp — guards rule-10 (both stages fixed * identically). * * CONTROL rows pin that the fix touches nothing else: an all-integer * branched 2-tuple (correct pre- and post-fix; MOVQ path untouched), the * destructure form `let (a,b)=mk()` (cgmlet, a separate path the fix * does not touch), a single-return (f64,i64) field read (#103 FACE-Z * shape, correct pre- and post-fix), and a bare 0f64 compare (#103 * FACE-X shape, no tuple involved). */ #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; } struct row { const char *label; const char *src; int want_exit; int chk_stamped; int want_compile_fail; /* #164: loud-stop rows must NOT compile */ }; static const struct row rows[] = { /* BUG — minimal repro. norm is BRANCHED (inner issub() CALL clobbers * AX) and its f64 word is the param n, not a literal. Pre-fix the * receive spills MOVQ AX,slot (garbage); r.0 != 16.0 -> return 1. * Post-fix MOVSD X0,slot -> 16.0 -> return 0. */ { "f64_i64_br", "package main;\n" "fn issub(n: f64) bool = { return false; };\n" "fn norm(n: f64) (f64, i64) = {\n" "\tif (issub(n)) { return (n*2.0, -52); };\n" "\treturn (n, 0);\n" "};\n" "export fn main() i32 = {\n" "\tconst r = norm(16.0);\n" "\tconst m: f64 = r.0;\n" "\tif (m != 16.0) { return 1; };\n" "\treturn 0;\n" "};\n", 0 }, /* BUG — deferred read. An intervening f64 CALL clobbers X0 AFTER the * receive; the read of r.0 must come from the SPILLED slot, not a * stale X0. Strongest catch: proves the spill happened at receive * time and survives X0 clobber. */ { "f64_i64_deferred", "package main;\n" "fn issub(n: f64) bool = { return false; };\n" "fn norm(n: f64) (f64, i64) = {\n" "\tif (issub(n)) { return (n*2.0, -52); };\n" "\treturn (n, 0);\n" "};\n" "fn clob(x: f64) f64 = { return x + 1.0; };\n" "export fn main() i32 = {\n" "\tconst r = norm(16.0);\n" "\tconst junk: f64 = clob(3.0);\n" "\tconst m: f64 = r.0;\n" "\tif (m != 16.0) { return 1; };\n" "\tif (junk != 4.0) { return 2; };\n" "\treturn 0;\n" "};\n", 0 }, /* BUG — order-swap (i64, f64): f64 is word1, spilled from DX pre-fix * (garbage; the f64 is in X0). Confirms the fix is position-aware: * word1's f64 -> MOVSD X0, slot+8; word0's i64 -> MOVQ AX, slot+0. */ { "i64_f64_br", "package main;\n" "fn issub(n: f64) bool = { return false; };\n" "fn norm(n: f64) (i64, f64) = {\n" "\tif (issub(n)) { return (-52, n*2.0); };\n" "\treturn (0, n);\n" "};\n" "export fn main() i32 = {\n" "\tconst r = norm(16.0);\n" "\tconst i: i64 = r.0;\n" "\tconst m: f64 = r.1;\n" "\tif (m != 16.0) { return 1; };\n" "\tif (i != 0) { return 2; };\n" "\treturn 0;\n" "};\n", 0 }, /* BUG — DESTRUCTURE form `let (m,i)=norm()` (N_MLET / cgmlet+tupstore). * f64 binding m is element 0 (cursor AX); pre-fix MOVQ AX,slot stores * garbage (issub clobbered AX). Post-fix MOVSD X0,slot. m=16.0, i=0. */ { "destr_f64_i64_br", "package main;\n" "fn issub(n: f64) bool = { return false; };\n" "fn norm(n: f64) (f64, i64) = {\n" "\tif (issub(n)) { return (n*2.0, -52); };\n" "\treturn (n, 0);\n" "};\n" "export fn main() i32 = {\n" "\tlet (m, i) = norm(16.0);\n" "\tif (m != 16.0) { return 1; };\n" "\tif (i != 0) { return 2; };\n" "\treturn 0;\n" "};\n", 0, 1 }, /* BUG — DESTRUCTURE order-swap `let (i,m)=norm()`, (i64,f64). f64 * binding m is element 1 (cursor DX); pre-fix MOVQ DX,slot garbage, * post-fix MOVSD X0,slot. i=0, m=16.0. */ { "destr_i64_f64_br", "package main;\n" "fn issub(n: f64) bool = { return false; };\n" "fn norm(n: f64) (i64, f64) = {\n" "\tif (issub(n)) { return (-52, n*2.0); };\n" "\treturn (0, n);\n" "};\n" "export fn main() i32 = {\n" "\tlet (i, m) = norm(16.0);\n" "\tif (m != 16.0) { return 1; };\n" "\tif (i != 0) { return 2; };\n" "\treturn 0;\n" "};\n", 0, 1 }, /* BUG — REASSIGN form `m,i = norm()` (N_MASSIGN / cgmassign+tupstore) * into pre-declared slots. Same f64-element-from-X0 defect. m=16.0. */ { "massign_f64_i64_br", "package main;\n" "fn issub(n: f64) bool = { return false; };\n" "fn norm(n: f64) (f64, i64) = {\n" "\tif (issub(n)) { return (n*2.0, -52); };\n" "\treturn (n, 0);\n" "};\n" "export fn main() i32 = {\n" "\tlet m: f64 = 0.0;\n" "\tlet i: i64 = 0;\n" "\tm, i = norm(16.0);\n" "\tif (m != 16.0) { return 1; };\n" "\tif (i != 0) { return 2; };\n" "\treturn 0;\n" "};\n", 0 }, /* BUG — REASSIGN order-swap `i,m = norm()`, (i64,f64). f64 reassign * target is element 1 (cursor DX). i=0, m=16.0. */ { "massign_i64_f64_br", "package main;\n" "fn issub(n: f64) bool = { return false; };\n" "fn norm(n: f64) (i64, f64) = {\n" "\tif (issub(n)) { return (-52, n*2.0); };\n" "\treturn (0, n);\n" "};\n" "export fn main() i32 = {\n" "\tlet i: i64 = 0;\n" "\tlet m: f64 = 0.0;\n" "\ti, m = norm(16.0);\n" "\tif (m != 16.0) { return 1; };\n" "\tif (i != 0) { return 2; };\n" "\treturn 0;\n" "};\n", 0 }, /* #164 (#107) HEADLINE — multi-float (f64, f64), destructure. The * callee is BRANCHED (issub CALL clobbers X0), so on master BOTH * elements collide on X0: cgexpr(a) leaves a in X0, cgexpr(b) * overwrites it, and every receive read spills from X0 -> x==y==b * (5.0). Post-fix a rides the SSE cursor X0, b rides X1; the receive * splits them. x=3.0, y=5.0. Pre-fix: x==5.0 -> return 1. */ { "f64f64_destr_br", "package main;\n" "fn issub(n: f64) bool = { return false; };\n" "fn pair(a: f64, b: f64) (f64, f64) = {\n" "\tif (issub(a)) { return (a*2.0, b*2.0); };\n" "\treturn (a, b);\n" "};\n" "export fn main() i32 = {\n" "\tlet (x, y) = pair(3.0, 5.0);\n" "\tif (x != 3.0) { return 1; };\n" "\tif (y != 5.0) { return 2; };\n" "\treturn 0;\n" "};\n", 0, 1 }, /* #164 HEADLINE — multi-float (f64, f64), SINGLE-VAR whole-tuple * receive (`let r = pair(); r.0 / r.1`, the 16B rt16 branch). Same * X0-collision on master; post-fix r.0 from X0, r.1 from X1. */ { "f64f64_single_br", "package main;\n" "fn issub(n: f64) bool = { return false; };\n" "fn pair(a: f64, b: f64) (f64, f64) = {\n" "\tif (issub(a)) { return (a*2.0, b*2.0); };\n" "\treturn (a, b);\n" "};\n" "export fn main() i32 = {\n" "\tconst r = pair(3.0, 5.0);\n" "\tconst x: f64 = r.0;\n" "\tconst y: f64 = r.1;\n" "\tif (x != 3.0) { return 1; };\n" "\tif (y != 5.0) { return 2; };\n" "\treturn 0;\n" "};\n", 0 }, /* #164 HEADLINE — multi-float (f64, f64), REASSIGN into pre-declared * slots (N_MASSIGN / cgmassign+tupstore). x=3.0, y=5.0. */ { "f64f64_massign_br", "package main;\n" "fn issub(n: f64) bool = { return false; };\n" "fn pair(a: f64, b: f64) (f64, f64) = {\n" "\tif (issub(a)) { return (a*2.0, b*2.0); };\n" "\treturn (a, b);\n" "};\n" "export fn main() i32 = {\n" "\tlet x: f64 = 0.0;\n" "\tlet y: f64 = 0.0;\n" "\tx, y = pair(3.0, 5.0);\n" "\tif (x != 3.0) { return 1; };\n" "\tif (y != 5.0) { return 2; };\n" "\treturn 0;\n" "};\n", 0 }, /* #164 — INTERLEAVED (i64, f64, i64): kills naive position->reg. The * two i64s ride the INTEGER cursor (AX,DX), the f64 the SSE cursor * (X0) on an independent counter — so x=AX, z=DX, y=X0. 3-element * destructure. x=3, y=2.0, z=7. */ { "i64_f64_i64_destr", "package main;\n" "fn issub(n: i64) bool = { return false; };\n" "fn tri(a: i64, b: f64, c: i64) (i64, f64, i64) = {\n" "\tif (issub(a)) { return (a*2, b*2.0, c*2); };\n" "\treturn (a, b, c);\n" "};\n" "export fn main() i32 = {\n" "\tlet (x, y, z) = tri(3, 2.0, 7);\n" "\tif (x != 3) { return 1; };\n" "\tif (y != 2.0) { return 2; };\n" "\tif (z != 7) { return 3; };\n" "\treturn 0;\n" "};\n", 0, 1 }, /* #164 — (f64, str): SSE + wide (24B {ptr,len,cap} header) coexist. * The f64 rides the SSE cursor (X0); the str rides the INTEGER * cursor (AX,DX,CX) since the float consumes no GP slot. Destructure * form. f=4.0, s.len=5 ("hello"). */ { "f64_str_destr", "package main;\n" "fn issub(n: f64) bool = { return false; };\n" "fn fs(n: f64) (f64, str) = {\n" "\tif (issub(n)) { return (n*2.0, \"x\"); };\n" "\treturn (n, \"hello\");\n" "};\n" "export fn main() i32 = {\n" "\tlet (f, s) = fs(4.0);\n" "\tif (f != 4.0) { return 1; };\n" "\tif (s.len != 5) { return 2; };\n" "\treturn 0;\n" "};\n", 0, 1 }, /* #164 STR-FIRST destructure (str, f64): the unification's new- * coverage shape with the wide header in slot 0. The str rides the * INTEGER cursor (AX,DX,CX = ptr,len,cap), the f64 the SSE cursor (X0) * — independent counters, the float consuming no GP slot. The * destructure path's cursor handled str-first on master too, so this * pins the dual-cursor restructure PRESERVED it (byte-id both ways) * AND that the f64 coexists. s.len=5 ("hello"), f=4.0. */ { "str_f64_destr", "package main;\n" "fn issub(n: f64) bool = { return false; };\n" "fn sf(n: f64) (str, f64) = {\n" "\tif (issub(n)) { return (\"x\", n*2.0); };\n" "\treturn (\"hello\", n);\n" "};\n" "export fn main() i32 = {\n" "\tlet (s, f) = sf(4.0);\n" "\tif (s.len != 5) { return 1; };\n" "\tif (f != 4.0) { return 2; };\n" "\treturn 0;\n" "};\n", 0, 1 }, /* #164 STR-FIRST destructure (str, i64): pure-integer str-first. * str@AX,DX,CX then i64@R8. Correct on master too (single-cursor * destructure already routed ptr=AX) — byte-id regression guard that * the dual cursor left the integer str-first mapping intact. s.len=5, * k=7. */ { "str_i64_destr", "package main;\n" "fn issub(n: i64) bool = { return false; };\n" "fn si(n: i64) (str, i64) = {\n" "\tif (issub(n)) { return (\"x\", n*2); };\n" "\treturn (\"hello\", n);\n" "};\n" "export fn main() i32 = {\n" "\tlet (s, k) = si(7);\n" "\tif (s.len != 5) { return 1; };\n" "\tif (k != 7) { return 2; };\n" "\treturn 0;\n" "};\n", 0 }, /* #164 STR-FIRST SINGLE-VAR (str, i64), annotated `let t: (str,i64) = * si(); t.0/t.1`: the shape the OLD 32B single-var branch got WRONG — * it read .ptr from DX while the send placed .ptr in AX (self- * inconsistent), scrambling the slot so t.1 read the str.ptr word. * DISCRIMINATES: pre-fix t.1 = a large address != 7; post-fix the * unified dual cursor lands str@AX,DX,CX + i64@R8 so t.1=7. Both * stages were wrong IDENTICALLY pre-fix (byte-id held, runtime broke), * right identically post-fix. Annotated (not bare `const r=`) because * the wwstage 32B single-var branch keys on the N_TTUPLE type node — * a bare 32B single-var is a pre-existing stage asymmetry out of #164 * scope (16B bare single-var rows above cover the inferred path). */ { "str_i64_single", "package main;\n" "fn issub(n: i64) bool = { return false; };\n" "fn si(n: i64) (str, i64) = {\n" "\tif (issub(n)) { return (\"x\", n*2); };\n" "\treturn (\"hello\", n);\n" "};\n" "export fn main() i32 = {\n" "\tlet t: (str, i64) = si(7);\n" "\tif (t.1 != 7) { return 1; };\n" "\tif (t.0.len != 5) { return 2; };\n" "\treturn 0;\n" "};\n", 0 }, /* #10 OVER-CAP RECV — three f64 = 0 GP / 3 SSE exceeds the SSE return * cap (X0,X1 only). #164 loud-stopped this at the SEND; #10 Fold A * sret's it (callee stores X0/X1 → @sretarg at foff 0/8/16) and Fold B * destructures it (each element MOVSD'd out of @sretscr into its * binding), so it is now a working round-trip in BOTH stages. */ { "f64x3_recv", "package main;\n" "fn tri(a: f64, b: f64, c: f64) (f64, f64, f64) = {\n" "\treturn (a, b, c);\n" "};\n" "export fn main() i32 = {\n" "\tlet (x, y, z) = tri(1.0, 2.0, 3.0);\n" "\tif (x != 1.0) { return 1; };\n" "\tif (y != 2.0) { return 2; };\n" "\tif (z != 3.0) { return 3; };\n" "\treturn 0;\n" "};\n", 0, 0, 0 }, /* CONTROL — all-integer branched 2-tuple. The integer-cursor MOVQ * path is untouched by the fix (e0/e1 not float), so this is correct * pre- and post-fix and byte-id both ways. a=5, b=7 -> 12. */ { "ctl_int_br", "package main;\n" "fn issub(n: i64) bool = { return false; };\n" "fn mk(n: i64) (i64, i64) = {\n" "\tif (issub(n)) { return (n*2, -1); };\n" "\treturn (n, 7);\n" "};\n" "export fn main() i32 = {\n" "\tconst r = mk(5);\n" "\tconst a: i64 = r.0;\n" "\tconst b: i64 = r.1;\n" "\treturn (a: i32) + (b: i32);\n" "};\n", 12 }, /* CONTROL — destructure-with-NO-f64 `let (a,b)=mk()`. The fix now * touches cgmlet/tupstore, but an all-integer element takes the * unchanged MOVQ path, so this stays byte-id and correct pre- and * post-fix — guards that the class check doesn't perturb integers. * a=5, b=7 -> 12. */ { "ctl_destr", "package main;\n" "fn issub(n: i64) bool = { return false; };\n" "fn mk(n: i64) (i64, i64) = {\n" "\tif (issub(n)) { return (n*2, -1); };\n" "\treturn (n, 7);\n" "};\n" "export fn main() i32 = {\n" "\tlet (a, b) = mk(5);\n" "\treturn (a: i32) + (b: i32);\n" "};\n", 12 }, /* CONTROL — #103 FACE-Z single-return (f64,i64) field read. The f64 * word is a literal, so AX coincidentally holds its bits on master; * correct pre- and post-fix (the fix changes MOVQ AX,slot -> MOVSD * X0,slot but the run result is unchanged). f=2.5->2, i=7 -> 9. */ { "ctl_facez_single", "package main;\n" "fn mk() (f64, i64) = { return (2.5, 7); };\n" "export fn main() i32 = {\n" "\tconst t = mk();\n" "\tconst f: f64 = t.0;\n" "\tconst i: i64 = t.1;\n" "\treturn (f: i32) + (i: i32);\n" "};\n", 9 }, /* CONTROL — #103 FACE-X bare 0f64 compare (no tuple). The fix does * not touch the compare path; pure no-op guard. -> 0. */ { "ctl_facex_0f64", "package main;\n" "export fn main() i32 = {\n" "\tconst z: f64 = 0.0;\n" "\tif (z != 0.0) { return 1; };\n" "\treturn 0;\n" "};\n", 0 }, { NULL, NULL, 0 } }; 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); int cb = fgetc(fb); if (ca != cb) { rc = -1; break; } if (ca == EOF) break; } fclose(fa); fclose(fb); return rc; } int main(void) { const char *bin = getenv("BIN"); if (!bin) bin = "out/bin"; char absbin[1024]; 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 w6c[1100], w6c_ww[1100]; snprintf(w6c, sizeof w6c, "%s/w6c", bin); snprintf(w6c_ww, sizeof w6c_ww, "%s/w6c_ww", bin); if (access(w6c_ww, X_OK) != 0) { fprintf(stderr, "tuprecv_f64: w6c_ww missing — cannot run the " "cs==ww byte-id gate\n"); return 1; } int n = 0, fail = 0; for (int i = 0; rows[i].src; i++, n++) { char src[64]; snprintf(src, sizeof src, "/tmp/wwtupf_%d_%d.ww", getpid(), i); FILE *f = fopen(src, "wb"); if (f == NULL) { fail++; continue; } fputs(rows[i].src, f); fclose(f); char cmd[2048]; /* #164 LOUD-STOP rows: the SSE-cap overflow must FAIL TO COMPILE * in BOTH stages (rule-7). Assert (a) cstage `ww build` errors, * and (b) w6c AND w6c_ww each return non-zero — proving the * loud-stop fires symmetrically. No .s is produced, so the * byte-id cmp is skipped. Discriminates against master, which * has no SSE cap and builds the (mis)compile. */ if (rows[i].want_compile_fail) { char ldir[64]; snprintf(ldir, sizeof ldir, "/tmp/wwtupf_%d_l_%d", getpid(), i); mkdir(ldir, 0755); snprintf(cmd, sizeof cmd, "cd %s && %s/ww build %s >/dev/null 2>&1", ldir, bin, src); if (runwait(cmd) == 0) { fprintf(stderr, "row[%s]: cstage build SUCCEEDED, " "want loud-stop (SSE cap)\n", rows[i].label); fail++; } snprintf(cmd, sizeof cmd, "%s -o /dev/null %s 2>/dev/null", w6c, src); if (runwait(cmd) == 0) { fprintf(stderr, "row[%s]: w6c emitted .s, want " "loud-stop\n", rows[i].label); fail++; } snprintf(cmd, sizeof cmd, "%s -o /dev/null %s 2>/dev/null", w6c_ww, src); if (runwait(cmd) == 0) { fprintf(stderr, "row[%s]: w6c_ww emitted .s, want " "loud-stop\n", rows[i].label); fail++; } unlink(src); rmdir(ldir); continue; } /* (a) cstage build + run in a scratch dir. */ char tmpdir[64]; snprintf(tmpdir, sizeof tmpdir, "/tmp/wwtupf_%d_d_%d", getpid(), i); mkdir(tmpdir, 0755); snprintf(cmd, sizeof cmd, "cd %s && %s/ww build %s", tmpdir, bin, src); if (runwait(cmd) != 0) { fprintf(stderr, "row[%s]: cstage build failed\n", rows[i].label); fail++; unlink(src); rmdir(tmpdir); continue; } char outbin[128]; const char *base = strrchr(src, '/'); base = base ? base + 1 : src; snprintf(outbin, sizeof outbin, "%s/%s", tmpdir, base); char *dot = strrchr(outbin, '.'); if (dot && strcmp(dot, ".ww") == 0) *dot = '\0'; int got = runwait(outbin); if (got != rows[i].want_exit) { fprintf(stderr, "row[%s]: cstage exit %d, want %d\n", rows[i].label, got, rows[i].want_exit); fail++; } unlink(outbin); rmdir(tmpdir); /* (b) cs==ww byte-id gate: emit .s from both stages, cmp. */ char cs_s[64], ws_s[64]; snprintf(cs_s, sizeof cs_s, "/tmp/wwtupf_%d_%d_cs.s", getpid(), i); snprintf(ws_s, sizeof ws_s, "/tmp/wwtupf_%d_%d_ww.s", getpid(), i); snprintf(cmd, sizeof cmd, "%s -o %s %s 2>/dev/null", w6c, cs_s, src); if (runwait(cmd) != 0) { fprintf(stderr, "row[%s]: w6c failed\n", rows[i].label); fail++; unlink(src); continue; } snprintf(cmd, sizeof cmd, "%s -o %s %s 2>/dev/null", w6c_ww, ws_s, src); if (runwait(cmd) != 0) { fprintf(stderr, "row[%s]: w6c_ww failed\n", rows[i].label); fail++; unlink(src); unlink(cs_s); continue; } if (slurp_eq(cs_s, ws_s) != 0) { fprintf(stderr, "row[%s]: cstage/wwstage .s DIFFER (rule-10 " "byte-id violation)\n", rows[i].label); fail++; } /* (c) #121 A-narrow stamp gate: the un-annotated float- * destructure binding must now carry a checker type stamp, so * w6c_ww emits no `asserttyped:` diagnostic. Non-vacuous — * pre-stamp (HEAD) w6c_ww fires asserttyped on the f64 binding * ident (nil n.type_). */ if (rows[i].chk_stamped) { char errf[80]; snprintf(errf, sizeof errf, "/tmp/wwtupf_%d_%d_err.txt", getpid(), i); snprintf(cmd, sizeof cmd, "%s -o /dev/null %s 2>%s", w6c_ww, src, errf); runwait(cmd); snprintf(cmd, sizeof cmd, "grep -q asserttyped %s", errf); if (runwait(cmd) == 0) { fprintf(stderr, "row[%s]: w6c_ww emitted " "asserttyped (destructure binding " "unstamped)\n", rows[i].label); fail++; } unlink(errf); } unlink(src); unlink(cs_s); unlink(ws_s); } if (fail) { fprintf(stderr, "%d/%d tuple-receive-f64 tests failed\n", fail, n); return 1; } printf("tuprecv_f64: %d/%d ok (cstage run + cs==ww byte-id)\n", n, n); return 0; }