Hojun-Cho
83f5956df2
Every section banner dies (103 -> 0) across test/lang, the observer suites, the C carriers, and the five comment-heavy corpus fixtures; banner provenance (#N cites, carrier numbers, repair-cluster labels) folded into headers or adjacent WHY comments. Narration deleted; row provenance, ref cites, divergence pins, and layout contracts kept (fwd-ref decl-order guards and bootstrap-gate corpus rationale restored where the sweep over-cut). Comment-only proven: all 3742 wwbuild workdir .s byte-identical before/after; test-commit and test-byteid (161 lang + 1399 data, 0 pinned-divergent) green.
35 lines
1.2 KiB
Plaintext
35 lines
1.2 KiB
Plaintext
// Struct array-field init + read (global let/def and
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// local lit). Migrated from test/wcc/949_structlit_arrfield_run.c (#249). BUG B:
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// reading a [4]u8 field of a module-global struct SEGFAULTed on wwstage; BUG A:
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// a local struct-lit array field fell to the scalar tail and dropped every
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// element but the first. Fix = cg_structlit_fill array arm + def_isstructdef
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// LOAD widening (ADDQ $field_off). cstage build+run was T1; cs==ww .s byte-id
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// rides T2 (test-lang-byteid). The def row has a [3]u8 pad ahead of encmap, so
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// the read exercises a non-zero field offset (the base64 std_encoding shape).
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package structlit_arrfield_test;
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type e1 = struct { encmap: [4]u8 };
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let GE: e1 = e1 { encmap = [65u8, 66u8, 67u8, 68u8] };
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type e2 = struct { pad: [3]u8, encmap: [4]u8 };
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def GD: e2 = e2 { pad = [9u8, 9u8, 9u8], encmap = [65u8, 66u8, 67u8, 68u8] };
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@test fn global_let_read() void = {
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assert(GE.encmap[0]: i32 == 65);
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};
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@test fn global_def_read_off() void = {
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assert(GD.encmap[2]: i32 == 67);
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};
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@test fn local_lit_read0() void = {
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let g: e1 = e1 { encmap = [65u8, 66u8, 67u8, 68u8] };
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assert(g.encmap[0]: i32 == 65);
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};
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@test fn local_lit_read3() void = {
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let g: e1 = e1 { encmap = [65u8, 66u8, 67u8, 68u8] };
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assert(g.encmap[3]: i32 == 68);
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};
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