I was thinking does it possible to using peephole2 to optimize this
case, but I realized their is several barrier, like stack tie and
note...so it seems hard to just leverage peephole2.
And the patch is LGTM, only a few minor coding format issues, but you
don't need to send new patch, I can fix th
Generate cm.popretz instead of cm.popret if return value is 0.
Signed-off-by: Fei Gao
gcc/ChangeLog:
* config/riscv/riscv.cc
(riscv_zcmp_can_use_popretz): true if popretz can be used
(riscv_gen_multi_pop_insn): interface to generate cm.pop[ret][z]
(riscv_expand_e
