https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49300
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #1 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Piotr Wyderski from comment #0)
> The _mm_extract_epi64() function is available only on x64, but
> according to the instruction set, its underlying pextrq instruction
> has the following parameters:
>
> PEXTRQ r/m64, xmm2, imm8
>
> so the m64 mode is available also on 32-bit x86.
Not really.
$ more pextrq.s
pextrq $1, %xmm0, a
$ gcc -c -m32 pextrq.s
pextrq.s: Assembler messages:
pextrq.s:1: Error: `pextrq' is only supported in 64-bit mode
