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Re: [AArch64] Make more use of function_abi
- From: Richard Sandiford <richard dot sandiford at arm dot com>
- To: gcc-patches at gcc dot gnu dot org
- Cc: richard dot earnshaw at arm dot com, james dot greenhalgh at arm dot com, marcus dot shawcroft at arm dot com
- Date: Mon, 30 Sep 2019 17:49:18 +0100
- Subject: Re: [AArch64] Make more use of function_abi
- References: <mpttv90gx0b.fsf@arm.com>
Richard Sandiford <richard.sandiford@arm.com> writes:
> [This follows on from:
> https://gcc.gnu.org/ml/gcc-patches/2019-09/msg00778.html
> https://gcc.gnu.org/ml/gcc-patches/2019-09/msg01456.html]
>
> This patch makes more use of the function_abi infrastructure.
> We can then avoid checking specifically for the vector PCS in
> a few places, and can test it more directly otherwise.
>
> Specifically: we no longer need to call df_set_regs_ever_live
> for the extra call-saved registers, since IRA now does that for us.
> We also don't need to handle the vector PCS specially in
> aarch64_epilogue_uses, because DF now marks the registers
> as live on exit.
>
> Tested on aarch64-linux-gnu. OK to install?
>
> Richard
Now self-approved and applied as r276341.
Richard