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.
34 lines
1.1 KiB
Plaintext
34 lines
1.1 KiB
Plaintext
// 16-byte integer-only struct passed by value through `#foreign`.
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//
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// emit_llvm.zig's `abiCoerceParamType` routes 9..16-byte non-HFA
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// structs through `[2 x i64]` for register-pair passing on AAPCS64 /
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// SysV AMD64. The call-site side loads the sx struct as `{ i64, i64 }`,
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// so the verifier needs a memory-bitcast bridge in both directions
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// (`abi.struct2arr` on the way in, `abi.arr2struct` on the way back).
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//
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// Different ABI path from 8-byte register-pair structs (coerce to
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// i64), HFAs at the same total size (Vec4f stays a struct), and
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// >16-byte aggregates (passed via pointer + byval).
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//
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// This file was originally filed as issue-0036 (LLVM verifier
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// failure repro). Promoted to a focused feature example once the
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// emit_llvm.zig coerceArg branches landed.
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#import "modules/std.sx";
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#import c {
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#source "1206-ffi-medium-struct.c";
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};
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Pair64 :: struct { a: s64; b: s64; }
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ffi_pair64_swap :: (p: Pair64) -> Pair64 #foreign;
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main :: () -> s32 {
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p : Pair64 = .{ a = 1, b = 2 };
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q := ffi_pair64_swap(p);
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print("swap = ({}, {})\n", q.a, q.b);
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print("ok = {}\n", q.a == 2 and q.b == 1);
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0;
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}
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