// #target: macos-x64
module test;
import libc;
fn int? abc()
{
	return 1;
}
macro test()
{
	return abc()!;
}

fn void main()
{
	libc::printf("%d\n", test() ?? 2);
}

/* #expect: test.ll

define i64 @test.abc(ptr %0) #0 {
entry:
  %reterr = alloca i64, align 8
  store i32 1, ptr %0, align 4
  ret i64 0
}


define void @test.main() #0 {
entry:
  %error_var = alloca i64, align 8
  %retparam = alloca i32, align 4
  %0 = call i64 @test.abc(ptr %retparam)
  %not_err = icmp eq i64 %0, 0
  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
  br i1 %1, label %after_check, label %assign_optional

assign_optional:                                  ; preds = %entry
  store i64 %0, ptr %error_var, align 8
  br label %guard_block

after_check:                                      ; preds = %entry
  br label %noerr_block

guard_block:                                      ; preds = %assign_optional
  br label %else_block

noerr_block:                                      ; preds = %after_check
  %2 = load i32, ptr %retparam, align 4
  br label %phi_block

else_block:                                       ; preds = %guard_block
  br label %phi_block

phi_block:                                        ; preds = %else_block, %noerr_block
  %val = phi i32 [ %2, %noerr_block ], [ 2, %else_block ]
  %3 = call i32 (ptr, ...) @printf(ptr @.str, i32 %val)
  ret void
}