Re: [Xen-devel] [PATCH v6] x86/clang: allow integrated assembler usage

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 23/02/18 14:11, Roger Pau Monne wrote:
> If the required features are present.
>
> Modify as-option-add to add an option in case the test fails, and use
> it to detect whether the required clang integrated assembler features
> are present.
>
> This patch has been tested with clang 3.5, clang 6, gcc 6.4.0 without
> retpoline support and gcc 7.3.1 with retpoline support.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

FWIW, I've just tested this in combination with my alternatives series
and everything is working as expected.  Strictly speaking, it does need
an ack from someone else as it is now SoB myself and Roger.

~Andrew

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