"Junxian Zhu" <zhujunx...@oss.cipunited.com> writes:
> From: Junxian Zhu <zhujunx...@oss.cipunited.com>
>
> Add buildtime option to decide whether will compiler build with `-mmsa`
> option default.
>
> gcc/ChangeLog:
> * config.gcc: add -with-{no-}msa build option.
> * config/mips/mips.h: Likewise.
> * doc/install.texi: Likewise.
Thanks, pushed to trunk. I think it's equivalent to adding an extra
mips*-*-* stanza and so suitable for stage 4.
Richard
>
> Signed-off-by: Junxian Zhu <zhujunx...@oss.cipunited.com>
> ---
> gcc/config.gcc | 19 +++++++++++++++++--
> gcc/config/mips/mips.h | 3 ++-
> gcc/doc/install.texi | 8 ++++++++
> 3 files changed, 27 insertions(+), 3 deletions(-)
>
> diff --git a/gcc/config.gcc b/gcc/config.gcc
> index c070e6ecd2e..da3a6d3ba1f 100644
> --- a/gcc/config.gcc
> +++ b/gcc/config.gcc
> @@ -4709,7 +4709,7 @@ case "${target}" in
> ;;
>
> mips*-*-*)
> - supported_defaults="abi arch arch_32 arch_64 float fpu nan
> fp_32 odd_spreg_32 tune tune_32 tune_64 divide llsc mips-plt synci lxc1-sxc1
> madd4 compact-branches"
> + supported_defaults="abi arch arch_32 arch_64 float fpu nan
> fp_32 odd_spreg_32 tune tune_32 tune_64 divide llsc mips-plt synci lxc1-sxc1
> madd4 compact-branches msa"
>
> case ${with_float} in
> "" | soft | hard)
> @@ -4871,6 +4871,21 @@ case "${target}" in
> exit 1
> ;;
> esac
> +
> + case ${with_msa} in
> + yes)
> + with_msa=msa
> + ;;
> + no)
> + with_msa=no-msa
> + ;;
> + "")
> + ;;
> + *)
> + echo "Unknown msa type used in --with-msa" 1>&2
> + exit 1
> + ;;
> + esac
> ;;
>
> loongarch*-*-*)
> @@ -5815,7 +5830,7 @@ case ${target} in
> esac
>
> t=
> -all_defaults="abi cpu cpu_32 cpu_64 arch arch_32 arch_64 tune tune_32
> tune_64 schedule float mode fpu nan fp_32 odd_spreg_32 divide llsc mips-plt
> synci tls lxc1-sxc1 madd4 isa_spec compact-branches"
> +all_defaults="abi cpu cpu_32 cpu_64 arch arch_32 arch_64 tune tune_32
> tune_64 schedule float mode fpu nan fp_32 odd_spreg_32 divide llsc mips-plt
> synci tls lxc1-sxc1 madd4 isa_spec compact-branches msa"
> for option in $all_defaults
> do
> eval "val=\$with_"`echo $option | sed s/-/_/g`
> diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h
> index fbb4372864f..13bc193b752 100644
> --- a/gcc/config/mips/mips.h
> +++ b/gcc/config/mips/mips.h
> @@ -916,7 +916,8 @@ struct mips_cpu_info {
> {"synci", "%{!msynci:%{!mno-synci:-m%(VALUE)}}" }, \
> {"lxc1-sxc1", "%{!mlxc1-sxc1:%{!mno-lxc1-sxc1:-m%(VALUE)}}" }, \
> {"madd4", "%{!mmadd4:%{!mno-madd4:-m%(VALUE)}}" }, \
> - {"compact-branches", "%{!mcompact-branches=*:-mcompact-branches=%(VALUE)}"
> } \
> + {"compact-branches", "%{!mcompact-branches=*:-mcompact-branches=%(VALUE)}"
> }, \
> + {"msa", "%{!mmsa:%{!mno-msa:-m%(VALUE)}}" } \
>
> /* A spec that infers the:
> -mnan=2008 setting from a -mips argument,
> diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
> index 8ef5c1414da..718f48fbaeb 100644
> --- a/gcc/doc/install.texi
> +++ b/gcc/doc/install.texi
> @@ -1653,6 +1653,14 @@ unfused is normally expected). Disabling these
> instructions is the
> only way to ensure compatible code is generated; this will incur
> a performance penalty.
>
> +@item --with-msa
> +On MIPS targets, make @option{-mmsa} the default when no
> +@option{-mno-msa} option is passed.
> +
> +@item --without-msa
> +On MIPS targets, make @option{-mno-msa} the default when no
> +@option{-mmsa} option is passed. This is the default.
> +
> @item --with-mips-plt
> On MIPS targets, make use of copy relocations and PLTs.
> These features are extensions to the traditional
