Detecting power grid shorts on regulated voltage domains

A computer system comprising:

• a processor set;
• one or more computer-readable storage media;
• and
• program instructions stored on the one or more computer-readable storage media to cause the processor set to perform operations comprising:
• providing an integrated circuit having a first voltage regulator in a voltage domain, a first circuit under test, a regulator disable logic unit, and a short detection logic unit;
• applying a voltage to the first circuit under test via the first voltage regulator;
• disabling the first voltage regulator by the regulator disable logic unit;
• after disabling the first voltage regulator, comparing, by the short detection logic unit, an output voltage of the first voltage regulator to a circuit leakage voltage value expected for the first circuit under test;
• and
• determining that a short exists by detecting that a difference between the output voltage of the first voltage regulator and the circuit leakage voltage value is greater than a threshold.

A computer program product comprising:

• one or more computer-readable storage media;
• and
• program instructions stored on the one or more storage media to perform operations comprising:
• providing an integrated circuit having a first voltage regulator in a voltage domain, a first circuit under test, a regulator disable logic unit, and a short detection logic unit;
• applying a voltage to the first circuit under test via the first voltage regulator;
• disabling the first voltage regulator by the regulator disable logic unit;
• after disabling the first voltage regulator, comparing, by the short detection logic unit, an output voltage of the first voltage regulator to a circuit leakage voltage value expected for the first circuit under test;
• and
• determining that a short exists by detecting that a difference between the output voltage of the first voltage regulator and the circuit leakage voltage value is greater than a threshold.