patch: powerpc CALL_REALLY_USED_REGISTERS
Richard Henderson
rth@redhat.com
Thu Nov 29 12:09:00 GMT 2001
On Wed, Nov 28, 2001 at 08:27:22PM -0800, Stan Shebs wrote:
> FWIW, Motorola's code for this has a vrsave_save_p flag in stack
> frame info, and tests it to decide whether to add an explicit clobber
> to call insns.
Err, how does that help? We _already_ consider VRSAVE clobbered
at call instructions. The problem is that it _isn't_ clobbered,
and we want the compiler to know that.
r~
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