// #target: macos-x64
module test;

extern fn int! maybe();

fn int tester(int n)
{
    int! num = maybe();
    assert(try num, "Hello");
    int x = num;
    return num;
}

// #expect: test.ll

define i32 @test.tester(i32 %0) #0 {
entry:
  %num = alloca i32, align 4
  %num.f = alloca i64, align 8
  %retparam = alloca i32, align 4
  %x = alloca i32, align 4
  %1 = call i64 @maybe(i32* %retparam)
  %not_err = icmp eq i64 %1, 0
  br i1 %not_err, label %after.errcheck, label %error

error:                                            ; preds = %entry
  store i64 %1, i64* %num.f, align 8
  br label %after_assign

after.errcheck:                                   ; preds = %entry
  %2 = load i32, i32* %retparam, align 4
  store i32 %2, i32* %num, align 4
  store i64 0, i64* %num.f, align 8
  br label %after_assign

after_assign:                                     ; preds = %after.errcheck, %error
  %3 = load i32, i32* %num, align 4
  store i32 %3, i32* %x, align 4
  %4 = load i32, i32* %num, align 4
  ret i32 %4
}