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
899 B
Plaintext
32 lines
899 B
Plaintext
// A value-position match (`if subject == { case … }`) returning a small
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// integer type works when arms mix positive and negated literals: every arm
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// value is lowered against the merge's result type, so the phi operands all
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// share one width.
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//
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// Regression (issue 0066): a negated-literal arm (`else: -1`) previously
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// lowered at a narrower width than the positive arms, tripping LLVM's
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// "PHI node operands are not the same type as the result".
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#import "modules/std.sx";
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sign :: (n: i32) -> i32 {
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if n == {
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case 0: 0;
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else: if n > 0 then 1 else -1;
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}
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}
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classify :: (n: i32) -> i32 {
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if n == {
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case 0: 100;
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case 1: 10;
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else: -1;
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}
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}
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main :: () -> i32 {
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print("sign: {} {} {}\n", sign(-9), sign(0), sign(9)); // -1 0 1
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print("classify: {} {} {}\n", classify(0), classify(1), classify(5)); // 100 10 -1
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0
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}
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