-ir_value* ir_block_create_add(ir_block*, const char *label, ir_value *l, ir_value *r);
-ir_value* ir_block_create_sub(ir_block*, const char *label, ir_value *l, ir_value *r);
-ir_value* ir_block_create_mul(ir_block*, const char *label, ir_value *l, ir_value *r);
-ir_value* ir_block_create_div(ir_block*, const char *label, ir_value *l, ir_value *r);
-ir_instr* ir_block_create_phi(ir_block*, const char *label, int vtype);
+ir_instr* ir_block_create_phi(ir_block*, lex_ctx, const char *label, int vtype);