Files
sx/examples/0055-basic-large-stack-array.sx
agra d8076b9333 lang: rename signed integer types sN -> iN
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.
2026-06-12 09:31:53 +03:00

46 lines
1.1 KiB
Plaintext

// Large (64KB+) stack arrays compile and are accessed in place: `---`
// emits no initializer store, and element reads GEP the array's storage
// instead of loading the whole array as a value.
//
// Regression (issue 0124): both whole-aggregate shapes — the undef
// store from `---` and `index_get` on the loaded array value —
// scalarized into one SelectionDAG node per element and segfaulted
// `sx build` at [65536]u8.
//
// Results print via out/int_to_string: `{}` formatting would pull the
// any_to_string dispatcher, whose array arms materialize every interned
// array type BY VALUE — the separate issue 0125.
#import "modules/std.sx";
checksum :: () -> i64 {
buf : [65536]u8 = ---;
i := 0;
while i < 65536 {
buf[i] = xx (i % 251);
i += 1;
}
sum := 0;
i = 0;
while i < 65536 {
sum += xx buf[i];
i += 1;
}
return sum;
}
big :: () -> i64 {
buf : [131072]i64 = ---;
buf[0] = 11;
buf[131071] = 31;
return buf[0] + buf[131071];
}
main :: () -> i32 {
out(int_to_string(checksum()));
out("\n");
out(int_to_string(big()));
out("\n");
return 0;
}