https://sourceware.org/bugzilla/show_bug.cgi?id=23204
Bug ID: 23204
Summary: objdump doesn't disassemble 'sqrdmlah
v9.4s,v22.4s,v18.4s'
Product: binutils
Version: 2.30
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: i-bugzilla-sourceware-org-kasujfzh at rf dot risimo.net
Target Milestone: ---
$ cat sqrdmlah.asm
.global main
.section .text
.balign 4
main:
sqrdmlah v9.4h,v22.4h,v18.4h
sqrdmlah v1.4s,v2.4s,v3.4s
sqrdmlah v9.4s,v22.4s,v18.4s
ret
$ as -mcpu=saphira -o sqrdmlah.o sqrdmlah.asm
$ objdump -d sqrdmlah.o
sqrdmlah.o: file format elf64-littleaarch64
Disassembly of section .text:
0000000000000000 <main>:
0: 2e5286c9 .inst 0x2e5286c9 ; undefined
4: 6e838441 sqrdmlah v1.4s, v2.4s, v3.4s
8: 6e9286c9 .inst 0x6e9286c9 ; undefined
c: d65f03c0 ret
$
As you can see the assembler has no problem but objdump has one.
Looks like the register number and not the type is causing the problem.
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