RE: [MIPS] RFA: Use new rtl iterators in mips_sim_wait_regs_1

> gcc/ > * config/mips/mips.c (mips_sim_insn): Update comment. > (mips_sim_wait_regs_2): Delete. > (mips_sim_wait_regs_1): Use FOR_EACH_SUBRTX_VAR. OK

[MIPS] RFA: Use new rtl iterators in mips_sim_wait_regs_1

This is part of a series to remove uses of for_each_rtx from the ports. Tested by making sure there were no code changes for gcc.dg, gcc.c-torture and g++.dg for mips64-elf. OK to install? Thanks, Richard gcc/ * config/mips/mips.c (mips_sim_insn): Update comment. (mips_sim_wait