[Bug binutils/23242] aarch64: objdump requires ignores bits to be set in ldar

[i-bugzilla-sourceware-org-kasujfzh at rf dot risimo.net]

https://sourceware.org/bugzilla/show_bug.cgi?id=23242

--- Comment #4 from Raimar Falke <i-bugzilla-sourceware-org-kasujfzh at rf dot 
risimo.net> ---
I'm sorry to bother you again but if objdump requires that the SBO 
bits are set than how is the following explained?

$ cat ldarh.asm
.global main
.section .text
.balign 4

main:
        ldarh w12,[x12]
        .inst 0x48cffd8c
        ret

$ objdump -d ldarh.o 

ldarh.o:     file format elf64-littleaarch64


Disassembly of section .text:

0000000000000000 <main>:
   0:   48dffd8c        ldarh   w12, [x12]
   4:   48cffd8c        ldarh   w12, [x12]
   8:   d65f03c0        ret

Shouldn't objdump output the 0x48cffd8c (not all bits of Rs set) as invalid?

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