=> 0x7f6fffbb8b2c <cairo_image_surface_get_width+12>:	mov    (%rax),%eax
   0x7f6fffbb8b2e <cairo_image_surface_get_width+14>:	test   %eax,%eax
   0x7f6fffbb8b30 <cairo_image_surface_get_width+16>:	jne    0x7f6fffbb8b40 <cairo_image_surface_get_width+32>
   0x7f6fffbb8b32 <cairo_image_surface_get_width+18>:	mov    0x168(%rdi),%eax
   0x7f6fffbb8b38 <cairo_image_surface_get_width+24>:	add    $0x8,%rsp
   0x7f6fffbb8b3c <cairo_image_surface_get_width+28>:	retq   
   0x7f6fffbb8b3d <cairo_image_surface_get_width+29>:	nopl   (%rax)
   0x7f6fffbb8b40 <cairo_image_surface_get_width+32>:	mov    $0xd,%edi
   0x7f6fffbb8b45 <cairo_image_surface_get_width+37>:	callq  0x7f6fffba9dd0
   0x7f6fffbb8b4a <cairo_image_surface_get_width+42>:	xor    %eax,%eax
   0x7f6fffbb8b4c <cairo_image_surface_get_width+44>:	add    $0x8,%rsp
   0x7f6fffbb8b50 <cairo_image_surface_get_width+48>:	retq   
   0x7f6fffbb8b51:	nopl   0x0(%rax,%rax,1)
   0x7f6fffbb8b56:	nopw   %cs:0x0(%rax,%rax,1)
   0x7f6fffbb8b60 <cairo_image_surface_get_height>:	sub    $0x8,%rsp
   0x7f6fffbb8b64 <cairo_image_surface_get_height+4>:	mov    (%rdi),%rax