https://bugs.kde.org/show_bug.cgi?id=368868

            Bug ID: 368868
           Summary: disInstr(arm64): unhandled instruction 0xD53BE000
           Product: valgrind
           Version: 3.12 SVN
          Platform: Compiled Sources
                OS: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: callgrind
          Assignee: josef.weidendor...@gmx.de
          Reporter: pash...@gmail.com

Failure to decode cntfrq_el0 (ARMv8) instruction

Failure trace:

ARM64 front end: branch_etc
disInstr(arm64): unhandled instruction 0xD53BE000
disInstr(arm64): 1101'0101 0011'1011 1110'0000 0000'0000
==26344== valgrind: Unrecognised instruction at address 0x6395ec0.
==26344==    at 0x6395EC0: ucs_get_cpu_clocks_per_sec (cpu.h:41)
==26344==    by 0x638894B: ucs_async_thread_func (time.h:57)
==26344==    by 0x49F0FB3: start_thread (pthread_create.c:335)
==26344==    by 0x4ADC38F: thread_start (clone.S:89)

Link to UCX source code:
https://github.com/openucx/ucx/blob/master/src/ucs/arch/aarch64/cpu.h#L43

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