On 14/11/2019 15:30, Kwok Cheung Yeung wrote:
The set of fixed registers is adjusted by the
TARGET_CONDITIONAL_REGISTER_USAGE hook, but this needs to be done on a
per-function basis, whereas the hook is normally called once during GCC
initialization before any functions have been processed (which means the
majority of the current implementation is actually dead code!). I have
added a call to reinit_regs in gcn_init_cumulative_args to setup the
available registers for each function.
Okay for trunk?
I'm a bit concerned that this sort of thing will break if/when the
parallel GCC becomes a thing, but I don't see a better way right now,
and we do need this to work.
OK.
Andrew
