Replacing 'sb' Instruction with 'sw' for Word Alignment in GCC

[Hanchao Li via Gcc-help <gcc-help@xxxxxxxxxxx>]

I am in the process of adapting a chip with the RV32I architecture.
Due to some issues with SRAM, I cannot use the "sb" instruction and must
use the "sw" instruction with word alignment. I attempted to replace the
"store byte" with "store word" in the "riscv_output_move" function in
"gcc/config/riscv/riscv.c",

switch (GET_MODE_SIZE (mode))
 case 1: return "sb\t%z1,%0";
 case 2: return "sh\t%z1,%0";
 case 4: return "sw\t%z1,%0";
case 8: return "sd\t%z1,%0";

but encountered some difficulties. For example, in "case 1: return
"sb\t%z1,%0";", "%0" can only be of type "mem", making it difficult to
align the address using instructions. Is there any feasible method to
achieve the conversion of "sb" to "sw"?

Thanks
Ricky