[PATCH] ARM fixed-point support [5.5/6]: argument & return padding for libcalls

Richard Earnshaw rearnsha@arm.com
Thu Jun 30 13:51:00 GMT 2011

On 26/05/11 17:56, Julian Brown wrote:
> This patch allows padding to be specified per-target for libcalls. This
> hasn't been traditionally important, because libcalls haven't accepted
> quantities which might need padding, but that's no longer true with the
> new(-ish) fixed-point support helper functions.
> Tested (alongside other fixed-point support patches) with cross to ARM
> EABI in both big & little-endian mode (the target-specific part is to
> avoid a behaviour change for half-float types on ARM). OK to apply?
> Thanks,
> Julian
> ChangeLog
>     gcc/
>     * calls.c (emit_library_call_value_1): Support padding for libcall
>     arguments and return values.
>     * config/arm/arm.c (arm_pad_arg_upward): Pad half-float values
>     downwards in big-endian mode.

OK if no generic RTL maintainer objects in the next 24 hours.


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