d8076b9333
Surface rename of the signed integer family: s1..s64 become i1..i64
(u1..u64, usize, isize unchanged). 'string' keeps the s-prefix arm in
name classification; width parsing moves to the i-prefix arm next to
isize.
Internal TypeId tags follow the surface (.s8/.s16/.s32/.s64 ->
.i8/.i16/.i32/.i64), as do mono-key mangle fragments (ptr_i64,
tu_i64_bool) and all display/diagnostic formatting (i{d}).
Migrated in the same sweep: stdlib + examples + issue repros + FFI C
companions (shared symbol names like ffi_id_i64), expected
stdout/stderr/ir snapshots, specs.md, readme.md, CLAUDE.md/AGENTS.md,
implementation_plan.md, docs/, issue writeups. Vendored stb_image and
historical flow state left untouched.
zig build test: 426/426; examples suite: 595/595.
32 lines
937 B
Plaintext
32 lines
937 B
Plaintext
// Regression test for issue-0025 path A.
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//
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// sx functions declared with `callconv(.c)` that take a composite > 16 bytes
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// by value must marshal the arg through `ptr byval(<T>)` per AAPCS64 / SysV
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// AArch64: the caller copies the struct to an alloca, passes the alloca
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// pointer with a `byval(<T>)` attribute, and the callee's entry block loads
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// the struct back from the pointer.
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//
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// Before the fix, abiCoerceParamType returned the raw LLVM struct type for
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// >16-byte composites (TODO at src/ir/emit_llvm.zig:2793), so the C ABI
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// promise was silently violated whenever sx-emitted C-callable code
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// interoperated with a real C caller.
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#import "modules/std.sx";
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Wide :: struct {
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a: i64;
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b: i64;
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c: i64;
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d: i64;
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}
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accept_c :: (w: Wide) -> i64 callconv(.c) {
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w.a + w.b + w.c + w.d
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}
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main :: () -> i32 {
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w := Wide.{ a = 1, b = 10, c = 100, d = 1000 };
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if accept_c(w) != 1111 { return 1; }
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0
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}
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