[PATCH] Add -ffixed-18 on AArch64

[Renato Golin]

Hi Andrew,

Looks good to me. Tim, did you have another use in mind?

cheers,
--renato

On 22 January 2015 at 14:06, Andrew Turner <andrew at fubar.geek.nz> wrote:
> The attached patch allows clang to have llvm reserve the x18
> platform register on AArch64. FreeBSD will use this in the kernel for
> per-cpu data but has no need to reserve this register in userland so
> will need this flag to reserve it.
>
> This uses llvm r226664 to allow this register to be reserved.
>
> Andrew
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