Re: [Patch AArch64 docs] Document the RcPc extension

["Richard Earnshaw (lists)" <Richard.Earnshaw@arm.com>]

On 23/06/17 11:21, James Greenhalgh wrote:
> 
> Hi,
> 
> Andrew pointed out that I did not document the new architecture extension
> flag I added the RcPc iextension. This was intentional, as enablihg the rcpc
> extension does not change GCC code generation, and is just an assembler flag.
> But for completeness, here is documentation for the new option.
> 
> OK?
> 

OK.

R.

> Thanks,
> James
> 
> ---
> 2017-06-21  James Greenhalgh  <james.greenhalgh@arm.com>
> 
> 	* doc/invoke.texi (rcpc architecture extension): Document it.
> 
> 
> 0001-Patch-AArch64-docs-Document-the-RcPc-extension.patch
> 
> 
> diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
> index 7e7a16a5..db00e51 100644
> --- a/gcc/doc/invoke.texi
> +++ b/gcc/doc/invoke.texi
> @@ -14172,6 +14172,10 @@ Enable Large System Extension instructions.  This is on by default for
>  @option{-march=armv8.1-a}.
>  @item fp16
>  Enable FP16 extension.  This also enables floating-point instructions.
> +@item rcpc
> +Enable the RcPc extension.  This does not change code generation from GCC,
> +but is passed on to the assembler, enabling inline asm statements to use
> +instructions from the RcPc extension.
>  
>  @end table
>  
>