Simplify function loopkup

Author: iluuu1994

Zend/Optimizer/sccp.c

@@ -1722,14 +1722,8 @@ static void sccp_visit_instr(scdf_ctx *scdf, zend_op *opline, zend_ssa_op *ssa_o
 				break;
 			}
 
-			if (!ctx->call_map) {
-				SET_RESULT_BOT(result);
-				break;
-			}
-
 			zval *args[3] = {NULL};
-			zend_call_info *call = ctx->call_map[opline - ctx->scdf.op_array->opcodes];
-			zend_function *func = call->callee_func;
+			zend_function *func = ZEND_FLF_FUNC(opline);
 			uint32_t num_args = ZEND_FLF_NUM_ARGS(opline->opcode);
 
 			switch (num_args) {