[Bug gas/23665] New: Invalid -mavxscalar=256 encoding

[hjl.tools at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=23665

            Bug ID: 23665
           Summary: Invalid -mavxscalar=256 encoding
           Product: binutils
           Version: 2.32 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gas
          Assignee: unassigned at sourceware dot org
          Reporter: hjl.tools at gmail dot com
  Target Milestone: ---
            Target: i386,x86-64

address@hidden testsuite]$ cat > x.s
vmovq  %xmm4,(%ecx)
address@hidden testsuite]$ as -mavxscalar=256 --32 -o x.o x.s
address@hidden testsuite]$ objdump -dw x.o

x.o:     file format elf32-i386


Disassembly of section .text:

00000000 <.text>:
   0:   c5 fd d6 21             vmovq  %xmm4,(%ecx)
address@hidden testsuite]$ 

address@hidden sde-external-8.16.0-2018-01-30-lin]$ ./xed -d c5 fd d6 21 
C5FDD621
ERROR: GENERAL_ERROR Could not decode at offset: 0x0 PC: 0x0:
[C5FDD6210000000000000000000000]
address@hidden sde-external-8.16.0-2018-01-30-lin]$

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