Hojun-Cho
74cc35d488
Continues the test-arch tower past Fam8-13. 11 module-level static-init / DATA-emit value drivers move from test/wcc/*_run.c into @test row- tables under test/lang/; every classification empirically re-probed at HEAD (refuting two stale worklist tags). - value rows -> test/lang/*_test.ww (11 files) - reject rows -> runww //ww:error carriers (3, dual-stage non-vacuous; 947 const-divzero confirmed a both-stage compile-reject, not run-exit) - 840_zeroinit, 944_array_zeroinit, 989_arrlit_tail_zero kept as byte-id .c pins (zero-over-dirtied-frame / DATAW-length is byte-id-blind to a runtime @test; #263), mutation-gated - repoint two stale comment refs to deleted test names (719, 989_structlocal_frame) Migrated static-init @test ride the cs==ww T2 byte-id gate, preserving DATA-emit byte-id. 2D global-struct array-field read (#137/#150) confirmed cs==ww + correct at HEAD. Coverage parity verified row-by-row; two-round reviewed. Floor ratchet follows.
71 lines
1.8 KiB
Plaintext
71 lines
1.8 KiB
Plaintext
// valstruct_subsize_test — sub-8 nested value-struct zero-init extent, local +
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// global, distinct byte asserts. Migrated from
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// test/wcc/949_valstruct_subsize_run.c. A nested {[N]u8} value-struct of ABI
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// size 1/2/4 once emitted a stray MOVQ $0 (local) / 8 zero DATA bytes (global)
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// on wwstage that cstage didn't. cstage build+run was T1; cs==ww .s byte-id
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// rides T2 (test-lang-byteid).
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//
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// The D1/D2 rows WRITE then READ a byte so the value is deterministic (the
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// robust falsifiable dimension). The ctl_*_16 rows are the negative control: a
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// >8 multi-word value-struct still zero-inits — a wrongly-suppressed >8 zero arm
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// would read stack garbage (and diverge from the still-zeroing cstage on the T2
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// byte-id, which is the real guarantee for the unwritten read).
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package valstruct_subsize_test;
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type in4 = struct { m: [4]u8 };
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type ov4 = struct { i: in4 };
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type in2 = struct { m: [2]u8 };
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type ov2 = struct { i: in2 };
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type in1 = struct { m: [1]u8 };
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type ov1 = struct { i: in1 };
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type in16 = struct { m: [16]u8 };
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type ov16 = struct { i: in16 };
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let G4: ov4;
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let G2: ov2;
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let G1: ov1;
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let G16: ov16;
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@test fn d1_local_4() void = {
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let o: ov4;
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o.i.m[0] = 66u8;
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assert(o.i.m[0]: i32 == 66);
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};
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@test fn d1_local_2() void = {
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let o: ov2;
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o.i.m[1] = 55u8;
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assert(o.i.m[1]: i32 == 55);
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};
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@test fn d1_local_1() void = {
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let o: ov1;
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o.i.m[0] = 44u8;
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assert(o.i.m[0]: i32 == 44);
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};
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@test fn d2_global_4() void = {
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G4.i.m[0] = 66u8;
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assert(G4.i.m[0]: i32 == 66);
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};
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@test fn d2_global_2() void = {
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G2.i.m[1] = 55u8;
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assert(G2.i.m[1]: i32 == 55);
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};
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@test fn d2_global_1() void = {
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G1.i.m[0] = 44u8;
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assert(G1.i.m[0]: i32 == 44);
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};
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@test fn ctl_local_16() void = {
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let o: ov16;
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assert(o.i.m[7]: i32 == 0);
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};
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@test fn ctl_global_16() void = {
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assert(G16.i.m[7]: i32 == 0);
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};
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