git: openjdk/jdk13u-dev: 8247502: PhaseStringOpts crashes while optimising effectively dead code

[Yuri Nesterenko]

Changeset: d61430b6
Author:    Olga Mikhaltsova <omikhaltcova at openjdk.org>
Committer: Yuri Nesterenko <yan at openjdk.org>
Date:      2021-04-26 07:27:39 +0000
URL:       https://git.openjdk.java.net/jdk13u-dev/commit/d61430b6

8247502: PhaseStringOpts crashes while optimising effectively dead code

Backport-of: a14490dd161b9ac9b4f900489fd84e756ff6e740

! src/hotspot/share/opto/stringopts.cpp