Files
sx/examples/186-nested-comptime-return.sx
agra 280c12c630 issues: promote 6 fixed bug repros to focused regression tests
All six produce their target outputs cleanly today; renamed out of
the `issue-*` namespace per CLAUDE.md "Resolving an open issue":

| Old                  | New                                       |
|----------------------|-------------------------------------------|
| issue-0032           | 181-impl-duplicate-same-file              |
| issue-0041           | 182-compound-type-in-expression           |
| issue-0042           | 183-type-alias-size-align                 |
| issue-0044           | 184-objc-defined-class-method-self        |
| issue-0045           | 185-pack-fn-comptime-return               |
| issue-0046           | 186-nested-comptime-return                |

Comment headers tightened to feature-focused (drop the issue-NNNN
provenance — that's in git history now). Missing expected `.txt` /
`.exit` files captured for 0041 + 0042 (they were untracked because
the bugs were fixed silently in adjacent work).

`examples/issue-*` after this commit: just `issue-0030.sx` — a
feature request (`extern G : T;` cross-file globals) that's never
been implemented. Staying in the issue namespace as a parked
proposal until the feature lands or gets formally rejected.

220/220 example tests + `zig build test` green.
2026-05-28 12:14:52 +03:00

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// Nested comptime call + return — a comptime fn (`$x: s32`) whose
// body contains BOTH a nested comptime call (`print`) AND a
// `return X;` statement must lower cleanly. The wrapper fn built
// by `createComptimeFunction` saves/restores `inline_return_target`
// so it doesn't inherit a slot belonging to the OUTER caller's
// basic block. Pre-fix: interp executed the wrapper with a
// stale-frame inline-return slot and tripped a null-pointer store
// at `storeAtRawPtr`.
//
// Repro: comptime fn (`$x: s32`) whose body has BOTH a nested
// comptime call (`print`) AND a `return X;` statement. Pre-fix:
// interp panics. Post-fix: prints "inside" then "n=42".
//
// The pack-fn variant of the same bug (filed in the original
// issue as face 2) was fixed earlier when step-2b moved pack-fn
// calls off the inline path into the mono path. Plain comptime
// fns stay on the inline path; their fix is the
// `createComptimeFunction` state save/restore.
#import "modules/std.sx";
helper :: ($x: s32) -> s64 {
print("inside\n");
return 42;
}
main :: () -> s32 {
n := helper(7);
print("n={}\n", n);
return 0;
}