4e942b5373
Rename all example tests/companions to the XXXX-category-test-name scheme (per-category 100-blocks: basic 0010, types 0100, ... errors 1000, diagnostics 1100, ffi 1200, ffi-objc 1300, ffi-jni 1400, vectors 1500, platform 1600). Companions and dir/C fixtures move in lockstep with their parent test; #import/#source/#include paths rewritten to match. Expected output now lives in examples/expected/ (a sibling dir of the tests) split into three streams per the new convention: <name>.exit / <name>.stdout / <name>.stderr (+ optional <name>.ir) run_examples.sh rewritten: scans examples/ and issues/ for an expected/<name>.exit marker, captures stdout and stderr separately (no more 2>&1), compares each stream + exit + optional IR snapshot. Behavior validated unchanged: every renamed test reproduces its prior merged output + exit (diffs limited to file paths/basenames embedded in diagnostics + traces, which correctly reflect the new names). Suite: 292 passed, 0 failed. 50-smoke.sx split + issue relocation + docs follow in subsequent commits.
54 lines
2.1 KiB
Plaintext
54 lines
2.1 KiB
Plaintext
// Phase 0 baseline (PLAN-FFI.md step 0.3): structs >16 bytes passed
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// by value into a C `#foreign` fn and returned by value. Exercises
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// the byval-pointer ABI path — the caller copies the struct onto its
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// stack and hands a pointer to the callee; on AAPCS64 the return
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// uses the indirect `x8` register; on SysV AMD64 the return is a
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// hidden first arg pointer that the caller allocates.
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//
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// Distinct from the register-pair / [2 x i64] / HFA paths the
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// small-struct baseline (ffi-02) covers. The two relevant emit_llvm
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// helpers are `needsByval` (returns true when size > 16) and
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// `materializeByvalArg` (alloca + store + pass pointer).
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//
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// Big24 — 24 B, three s64
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// Big48 — 48 B, six s64
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#import "modules/std.sx";
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#import c {
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#source "1211-ffi-03-large-struct.c";
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};
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Big24 :: struct { a: s64; b: s64; c: s64; }
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Big48 :: struct {
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a: s64; b: s64; c: s64;
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d: s64; e: s64; f: s64;
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}
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ffi_big24_make :: (a: s64, b: s64, c: s64) -> Big24 #foreign;
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ffi_big24_rotate :: (v: Big24) -> Big24 #foreign;
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ffi_big24_sum :: (v: Big24) -> s64 #foreign;
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ffi_big48_make :: (a: s64, b: s64, c: s64,
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d: s64, e: s64, f: s64) -> Big48 #foreign;
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ffi_big48_reverse :: (v: Big48) -> Big48 #foreign;
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ffi_big48_sum :: (v: Big48) -> s64 #foreign;
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main :: () -> s32 {
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// ── Big24 (24 bytes, byval pointer) ────────────────────────────
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v := ffi_big24_make(1, 2, 3);
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print("big24 make = ({}, {}, {})\n", v.a, v.b, v.c);
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w := ffi_big24_rotate(v);
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print("big24 rotate = ({}, {}, {})\n", w.a, w.b, w.c);
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print("big24 sum = {}\n", ffi_big24_sum(v));
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// ── Big48 (48 bytes, byval pointer) ────────────────────────────
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x := ffi_big48_make(10, 20, 30, 40, 50, 60);
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print("big48 make = ({}, {}, {}, {}, {}, {})\n", x.a, x.b, x.c, x.d, x.e, x.f);
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y := ffi_big48_reverse(x);
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print("big48 reverse = ({}, {}, {}, {}, {}, {})\n", y.a, y.b, y.c, y.d, y.e, y.f);
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print("big48 sum = {}\n", ffi_big48_sum(x));
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0;
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}
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