Bug #12296: [Backport] fix dangling link

• Status: Closed
• Assignee: -
• Target version: -
• Backport: 2.1: DONTNEED, 2.2: DONTNEED, 2.3: DONE

[nobu (Nobuyoshi Nakada)]

Backport r54628 to fix infinite loop by dangling link.
c.f. https://bugs.ruby-lang.org/issues/11816#change-58120

[naruse (Yui NARUSE)]

• Follows Feature #11816: Partial safe navigation operator added

[naruse (Yui NARUSE)]

• Backport changed from 2.1: DONTNEED, 2.2: DONTNEED, 2.3: REQUIRED to 2.1: DONTNEED, 2.2: DONTNEED, 2.3: DONE

ruby_2_3 r54635 merged revision(s) 54628.

[naruse (Yui NARUSE)]

• Status changed from Open to Closed

Applied in changeset ruby_2_3|r54635.

---

merge revision(s) 54628: [Backport #12296]

* compile.c (iseq_peephole_optimize): should not replace the
  current target INSN, not to follow the replaced dangling link in
  the caller.  [ruby-core:74993] [Bug #11816]