Support has recently been added for crc32c for Sparc in the following changeset

changeset: 8610:0cedc8c6582e
user: kvn
date: Mon Jun 29 00:10:01 2015 -0700
files: src/cpu/aarch64/vm/vm_version_aarch64.cpp src/cpu/ppc/vm/vm_version_ppc.cpp src/cpu/sparc/vm/assembler_sparc.hpp src/cpu/sparc/vm/macroAssembler_sparc.cpp src/cpu/sparc/vm/macroAssembler_sparc.hpp src/cpu/sparc/vm/stubGenerator_sparc.cpp src/cpu/sparc/vm/stubRoutines_sparc.hpp src/cpu/sparc/vm/vm_version_sparc.cpp src/cpu/sparc/vm/vm_version_sparc.hpp src/cpu/x86/vm/vm_version_x86.cpp src/os_cpu/solaris_sparc/vm/vm_version_solaris_sparc.cpp src/share/vm/classfile/vmSymbols.hpp src/share/vm/opto/escape.cpp src/share/vm/opto/library_call.cpp src/share/vm/opto/runtime.cpp src/share/vm/opto/runtime.hpp src/share/vm/runtime/globals.hpp src/share/vm/runtime/stubRoutines.cpp src/share/vm/runtime/stubRoutines.hpp src/share/vm/runtime/vmStructs.cpp test/compiler/intrinsics/crc32c/TestCRC32C.java
description:
8073583: C2 support for CRC32C on SPARC
Reviewed-by: jrose, kvn
Contributed-by: james.cheng@oracle.com

aarch64 also supports crc32c.

This proposes adding crc32c support in addition to crc32