You input the T4 as per issued.
As for the AMT; review the links below from TurboTax & CRA to explain and determine if you claim it or not:
What Is the Alternative Minimum Tax?: https://turbotax.intuit.ca/tips/what-is-the-alternative-minimum-tax-5350
Where to find in TurboTax? Found under the Deductions tab - Other Deductions - Alternative Minimum Tax and start from there