codegen.c: add peephole optimization for `OP_LOADI32` before `OP_MOVE`.
@@ -488,7 +488,7 @@ gen_move(codegen_scope *s, uint16_t dst, uint16_t src, int nopeep)
s->pc = s->lastpc;
genop_2(s, data.insn, dst, data.b);
break;
- case OP_GETUPVAR:
+ case OP_GETUPVAR: case OP_LOADI32:
if (nopeep || data.a != src || data.a < s->nlocals) goto normal;
s->pc = s->lastpc;
genop_3(s, data.insn, dst, data.b, data.c);
