Tamar Christina <tamar.christ...@arm.com> writes:
> diff --git a/gcc/config/aarch64/aarch64.opt b/gcc/config/aarch64/aarch64.opt
> index
> f32d56d4ffaef7862c1c45a11753be5d480220d0..2725c50da64a2c05489ea6202bdd5eedf1ba7e27
> 100644
> --- a/gcc/config/aarch64/aarch64.opt
> +++ b/gcc/config/aarch64/aarch64.opt
> @@ -290,6 +290,10 @@ msve-vector-bits=
> Target RejectNegative Joined Enum(sve_vector_bits)
> Var(aarch64_sve_vector_bits) Init(SVE_SCALABLE)
> -msve-vector-bits=<number> Set the number of bits in an SVE vector
> register.
>
> +mmax-vectorization
> +Target Undocumented Var(flag_aarch64_max_vectorization) Save
As mentioned in the review for v2, this is (rightly) not Undocumented :)
so please drop the tag.
> +Override the scalar cost model such that vectorization is always profitable.
> +
> mverbose-cost-dump
> Target Undocumented Var(flag_aarch64_verbose_cost)
> Enables verbose cost model dumping in the debug dump files.
> diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
> index
> 40ccf22b29f4316928f905ec2c978fdaf30a55ec..429cbeb8a3c8186af60b1441acb52bc052b60721
> 100644
> --- a/gcc/doc/extend.texi
> +++ b/gcc/doc/extend.texi
> @@ -3882,6 +3882,15 @@ Enable or disable calls to out-of-line helpers to
> implement atomic operations.
> This corresponds to the behavior of the command-line options
> @option{-moutline-atomics} and @option{-mno-outline-atomics}.
>
> +@cindex @code{max-vectorization} function attribute, AArch64
> +@item max-vectorization
> +@itemx no-max-vectorization
> +@code{max-vectorization} tells GCC's vectorizer to treat all vector
> +loops as being more profitable than the original scalar loops when
> +optimizing the current function. @code{no-max-vectorization} disables
> +this behavior.
> +@option{-mmax-vectorization} and @option{-mno-max-vectorization}.
I think there's a missing line above this one:
This corresponds to the behavior of the command-line options
> +
> @cindex @code{indirect_return} function attribute, AArch64
> @item indirect_return
> The @code{indirect_return} attribute can be applied to a function type
> diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
> index
> 95a25c0f63b77f26db05a7b48bfad8f9c58bcc5f..54d4cf88cccd4d0e4ede3442ad9907faac325d52
> 100644
> --- a/gcc/doc/invoke.texi
> +++ b/gcc/doc/invoke.texi
> @@ -21984,6 +21984,14 @@ used directly. The same applies when using
> @option{-mcpu=} when the
> selected cpu supports the @samp{lse} feature.
> This option is on by default.
>
> +@item -mmax-vectorization
> +@itemx -mno-max-vectorization
> +Enable or disable override to vectorizer cost model making vectorization
> always
Enable or disable an override of the vector cost model, making
vectorization always appear profitable.
> +profitable. This option can be combined with -mautovec-preference=...
> allowing
s/-mautovec-preference=.../@option{-mautovec-preference}/
> +precise control over which ISA will be used for auto-vectorization. Unlike
> +-fno-vect-cost-model or -fvect-cost-model=unlimited this option does not turn
@option{-fno-vect-cost-model} or @option{-fvect-cost-model=unlimited}
OK with those changes, thanks.
Richard
> +off cost comparison between different vector modes.
> +
> @opindex march
> @item -march=@var{name}
> Specify the name of the target architecture and, optionally, one or
