Re: [patch 4/7] Immediate Values - i386 Optimization

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

 



H. Peter Anvin wrote:
> Allowing different registers should be doable, but if so, one would have
> to put 0: at the *end* of the instruction and use (0f)-4 instead, since
> the non-%eax forms are one byte longer.
>   

OK, that's already a problem since its using "=r" as the constraint.

> This also seems "safer", since an imm32 is always the last thing in the
> instruction.

Good idea.  If gas/gcc generates entirely the wrong addressing mode,
then we've got bigger problems.

    J
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux