[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[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 12:36:35 +0000


--- Comment #12 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Jan Beulich from comment #11)
> (In reply to H.J. Lu from comment #10)
> > symbol(%rip) is similar to symbol and DISP.  There is no real register
> > in memory operand.
> I disagree - the compiler ought to emit
>       movdir64b       foo(%eip), %eax
> or
>       movdir64b       foo(%rip), %rax

This is wrong for x32.

> in this case, whatever fits the x32 model better. The compiler ought to in
> particular be aware that the register operand of this insn is
> address-size-prefix, not operand-size-/REX-prefix controlled.

There is no RIP register in GCC. It isn't a real register. GCC always
generate foo(%rip).

You are receiving this mail because:
You are on the CC list for the bug.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]