foo.rb

p (-1.3).abs
p = 2
p (-1.3).abs

insns

$ ruby --dump=insns foo.rb
== disasm: #<ISeq:<main>@foo.rb>========================================
local table (size: 2, argc: 0 [opts: 0, rest: -1, post: 0, block: -1, kw: -1@-1, kwrest: -1])
[ 2] p
0000 trace            1                                               (   1)
0002 putself
0003 putobject        -1.3
0005 opt_send_without_block <callinfo!mid:abs, argc:0, ARGS_SIMPLE>, <callcache>
0008 opt_send_without_block <callinfo!mid:p, argc:1, FCALL|ARGS_SIMPLE>, <callcache>
0011 pop
0012 trace            1                                               (   2)
0014 putobject        2
0016 setlocal_OP__WC__0 2
0018 trace            1                                               (   3)
0020 putself
0021 putobject        -1.3
0023 opt_send_without_block <callinfo!mid:p, argc:1, FCALL|ARGS_SIMPLE>, <callcache>
0026 opt_send_without_block <callinfo!mid:abs, argc:0, ARGS_SIMPLE>, <callcache>
0029 leave