git: openjdk/jdk17u-dev: 8301491: C2: java.lang.StringUTF16::indexOfChar intrinsic called with negative character argument

[Goetz Lindenmaier]

Changeset: 48632e51
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2023-04-27 10:32:13 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/48632e51c78cdda61a789e5781244eff3cf6eb9b

8301491: C2: java.lang.StringUTF16::indexOfChar intrinsic called with negative character argument

Backport-of: 47ca5773a54743244a9b28f877246d260b90a408

! src/hotspot/share/opto/library_call.cpp
+ test/hotspot/jtreg/compiler/intrinsics/string/TestStringIndexOfCharIntrinsics.java