In Compiler Optimization, Operator Strength Reduction Uses Mathematical Identities to Replace

question 15

Multiple Choice

In compiler optimization, operator strength reduction uses mathematical identities to replace slow math operations with faster operations. Which of the following code replacements is an illustration of operator strength reduction?

• A)Replace P + P by 2 * P or Replace 3 + 4 by 7.
• B)Replace P * 32 by P < < 5
• C)Replace P * 0 by 0
• D)Replace (P < <4) - P by P * 15

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Definitions:

Lymphocyte Levels

A measure of the concentration of a type of white blood cell in the blood, which plays a crucial role in the immune response.

Cortisol Levels

The concentration of cortisol, a steroid hormone, in the blood, which can change in response to stress or low blood-glucose concentration.

Epinephrine Levels

The concentration of epinephrine, a hormone also known as adrenaline, in the bloodstream; involved in the body’s fight-or-flight response.

NK Cell Count

A measure of the number of Natural Killer (NK) cells in the body, important for assessing the immune system's ability to fight infections and cancer.