66bdc70bf1
Move examples/*.sx and their expected/ snapshots into per-category subfolders (examples/<category>/...). Folder = leading filename token, with ffi-objc/ffi-jni kept whole; filenames are unchanged. The corpus runner and LSP sweep now discover each category's expected/ dir, while issues/ stays flat. Example 1058's repo-root-relative companion import is made file-relative. Path strings embedded in 164 snapshots were regenerated (path-only changes). Test-layout docs in CLAUDE.md updated.
35 lines
1.5 KiB
Plaintext
35 lines
1.5 KiB
Plaintext
// Dead statements after a block-terminating statement (`return` / `raise`) are
|
|
// dropped instead of being emitted into the already-closed basic block.
|
|
// Regression (issue 0061): a bare `return X;` / `raise` mid-block closed the
|
|
// LLVM basic block but lowering kept emitting the trailing statements into it
|
|
// → "Terminator found in the middle of a basic block". The canonical failable
|
|
// closure form `{ raise error.X; return x; }` tripped this, blocking ERR E5.1.
|
|
//
|
|
// The fix must NOT over-reach: a CONDITIONAL `if cond { return }` (and the
|
|
// `inline if` pack form) leaves a fresh merge block, so its trailing statements
|
|
// must still run — exercised by `clamp` / `pick` below.
|
|
|
|
#import "modules/std.sx";
|
|
|
|
E :: error { Neg }
|
|
|
|
// dead `return 99;` after an unconditional return
|
|
const_one :: () -> i64 { return 1; return 99; }
|
|
|
|
// dead `return x;` after an unconditional raise (the failable closure shape)
|
|
always_raise :: (x: i64) -> (i64, !E) { raise error.Neg; return x; }
|
|
|
|
// guard: a conditional return must still fall through to the trailing return
|
|
clamp :: (x: i64) -> i64 { if x > 10 { return 10; } return x; }
|
|
|
|
main :: () -> i32 {
|
|
print("const_one={}\n", const_one()); // 1
|
|
print("raised={}\n", always_raise(5) catch (e) 0); // 0
|
|
print("clamp_hi={}\n", clamp(42)); // 10
|
|
print("clamp_lo={}\n", clamp(7)); // 7
|
|
|
|
// dead code after a `return` at main's own block level is dropped.
|
|
return 0;
|
|
print("unreachable\n")
|
|
}
|