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[Bug gas/26685] Error: invalid register operand size for `movdir64b'


From: hjl.tools at gmail dot com
Subject: [Bug gas/26685] Error: invalid register operand size for `movdir64b'
Date: Thu, 01 Oct 2020 11:56:37 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=26685

--- Comment #8 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Jan Beulich from comment #7)
> Of course, that's all fine. But it's still gcc emitting wrong code, which
> gas legitimately diagnoses. You've introduced a bug into gas instead of
> fixing one.

No.  The fix is also incomplete:

[hjl@gnu-cfl-2 pr26685]$ cat foo.s 
        movdir64b       foo, %eax
        movdir64b       0x12345678, %eax
[hjl@gnu-cfl-2 pr26685]$ make foo.o
./as   -o foo.o foo.s
foo.s: Assembler messages:
foo.s:1: Error: invalid register operand size for `movdir64b'
foo.s:2: Error: invalid register operand size for `movdir64b'
make: *** [<builtin>: foo.o] Error 1
[hjl@gnu-cfl-2 pr26685]$

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