Bug #20651: `false && (1 in 1)` produces argument stack underflow (-1)

• Status: Open
• Assignee: -
• Target version: -
• ruby -v: ruby 3.4.0dev (2024-07-24T19:55:04Z master 30eba40f9c) [x86_64-linux]
• Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN

[tompng (tomoya ishida)]

false && (1 in 1) and true || (1 in 1) produces argument stack underflow since ruby 3.0

# ruby -v
ruby 3.4.0dev (2024-07-24T19:55:04Z master 30eba40f9c) [x86_64-linux]
# ruby -e "false && (1 in 1)"
-- raw disasm--------
   trace: 1
   0000 putobject            false                                       (   1)
   0002 leave                                                            (   1)
 <L004> [sp: 1, unremovable: 1, refcnt: 1]
 <L002> [sp: 1, unremovable: 0, refcnt: 0]
   0003 pop                                                              (   1)
*  0004 pop                                                              (   1)
   0005 putobject            false                                       (   1)
   0007 leave                                                            (   1)
---------------------
-e:1: argument stack underflow (-1)
-e: compile error (SyntaxError)