git: openjdk/jdk17u-dev: 8320363: ppc64 TypeEntries::type_unknown logic looks wrong, missed optimization opportunity

[Martin Doerr]

Changeset: 8bf03b93
Author:    Martin Doerr <mdoerr at openjdk.org>
Date:      2023-11-29 10:01:55 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/8bf03b93ea702a5a0eb20e13b389364630d150e5

8320363: ppc64 TypeEntries::type_unknown logic looks wrong, missed optimization opportunity

Backport-of: 6aa197667ad05bd93adf3afc7b06adbfb2b18a22

! src/hotspot/cpu/ppc/c1_LIRAssembler_ppc.cpp
! src/hotspot/cpu/ppc/interp_masm_ppc_64.cpp