=> 0x7f392cf669d4 <cairo_region_num_rectangles+4>:	mov    0x4(%rdi),%eax
   0x7f392cf669d7 <cairo_region_num_rectangles+7>:	test   %eax,%eax
   0x7f392cf669d9 <cairo_region_num_rectangles+9>:	je     0x7f392cf669e0 <cairo_region_num_rectangles+16>
   0x7f392cf669db <cairo_region_num_rectangles+11>:	xor    %eax,%eax
   0x7f392cf669dd <cairo_region_num_rectangles+13>:	retq   
   0x7f392cf669de <cairo_region_num_rectangles+14>:	xchg   %ax,%ax
   0x7f392cf669e0 <cairo_region_num_rectangles+16>:	add    $0x8,%rdi
   0x7f392cf669e4 <cairo_region_num_rectangles+20>:	jmpq   0x7f392cf15310 <pixman_region32_n_rects@plt>
   0x7f392cf669e9:	nopl   0x0(%rax)
   0x7f392cf669f0 <cairo_region_get_rectangle>:	endbr64 
   0x7f392cf669f4 <cairo_region_get_rectangle+4>:	push   %rbp
   0x7f392cf669f5 <cairo_region_get_rectangle+5>:	push   %rbx
   0x7f392cf669f6 <cairo_region_get_rectangle+6>:	mov    %rdx,%rbx
   0x7f392cf669f9 <cairo_region_get_rectangle+9>:	sub    $0x8,%rsp
   0x7f392cf669fd <cairo_region_get_rectangle+13>:	mov    0x4(%rdi),%eax
   0x7f392cf66a00 <cairo_region_get_rectangle+16>:	test   %eax,%eax