[Bug gas/6957] i386 NOPs must be derived from march not mtune

[hjl dot tools at gmail dot com]

------- Additional Comments From hjl dot tools at gmail dot com  2010-06-21 
14:28 -------
(In reply to comment #18)
> That does not work for me.
> 
> $ cat nopl.s
>  cmove %eax,%edx
>  .align 8
> $ as --32 -mtune=i686 nopl.s 
> $ objdump -dr | grep nopl
>    3:   0f 1f 44 00 00          nopl   0x0(%eax,%eax,1)
> $ as --32 -mtune=i686 -march=i486 nopl.s 
> nopl.s: Assembler messages:
> nopl.s:1: Error: `cmove' is not supported on `i486'
> 
> There should be a way to set -mtune while letting -march alone.

Please state exactly what you have in mind. From

$ cat nopl.s
 cmove %eax,%edx
 .align 8

you want i686 instructions, but you don't want to
tune for i686. Is that correct?


-- 
           What    |Removed                     |Added
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             Status|REOPENED                    |WAITING


http://sourceware.org/bugzilla/show_bug.cgi?id=6957

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