// #target: macos-x64

module test;

fn void tester()
{
	bool? x = false;
	x ?? true;
}

/* #expect: test.ll

define void @test.tester() #0 {
entry:
  %x = alloca i8, align 1
  %x.f = alloca i64, align 8
  store i8 0, ptr %x, align 1
  store i64 0, ptr %x.f, align 8
  %optval = load i64, ptr %x.f, align 8
  %not_err = icmp eq i64 %optval, 0
  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
  br i1 %0, label %after_check, label %else_block

after_check:                                      ; preds = %entry
  %1 = load i8, ptr %x, align 1
  %2 = trunc i8 %1 to i1
  br label %phi_block

else_block:                                       ; preds = %entry
  br label %phi_block

phi_block:                                        ; preds = %else_block, %after_check
  %val = phi i1 [ %2, %after_check ], [ true, %else_block ]
  ret void
}