Re: [lra] take scratch as implicit unused output reloads [PR55212]

[Tobias Burnus]

Vladimir Makarov wrote:

So the patch has sense.  You can commit it into the trunk.  Thank you for the patch, Alex.

This patch unfortunately breaks GCN bootstrap,
cf. https://gcc.gnu.org/PR123223

for  gcc/ChangeLog

    PR target/55212
    * lra-constraints.cc (match_reload): Treat former scratch
    regs as implicit unused output reloads.
    (process_alt_operands): Likewise.
    (curr_insn_transform): Likewise.

Tobias