[jdk15u-dev] RFR: 8261022: Fix incorrect result of Math.abs() with char type

Tue May 18 12:46:43 UTC 2021

I'd like to backport JDK-8261022 to 15u for parity with 11u.
The patch applies cleanly, but requires a modification due to absence of VectorNode::is_shift_opcode in 15u (JDK-8257625 is not in 15u), replaced by similar VectorNode::is_shift.
Tested with tier1; new test fails without the patch, passes with it.

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Commit messages:
 - Backport 7a2db858e0e81f2ba17c3554386bb6a833318b3d

Changes: https://git.openjdk.java.net/jdk15u-dev/pull/60/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk15u-dev&pr=60&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8261022
  Stats: 77 lines in 2 files changed: 66 ins; 1 del; 10 mod
  Patch: https://git.openjdk.java.net/jdk15u-dev/pull/60.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk15u-dev pull/60/head:pull/60

PR: https://git.openjdk.java.net/jdk15u-dev/pull/60