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What does the term 'register allocation' refer to in code generation?

Practice Questions

Q1
What does the term 'register allocation' refer to in code generation?
  1. Assigning variables to CPU registers
  2. Allocating memory for dynamic variables
  3. Managing stack space for function calls
  4. Distributing tasks among multiple processors

Questions & Step-by-Step Solutions

What does the term 'register allocation' refer to in code generation?
  • Step 1: Understand that a CPU has a limited number of registers, which are small storage locations for quick data access.
  • Step 2: Recognize that variables in a program need to be stored somewhere for the CPU to use them.
  • Step 3: Learn that 'register allocation' is the process of deciding which variables should be stored in these fast registers.
  • Step 4: Realize that the goal of register allocation is to make the program run faster by minimizing the time it takes to access variables.
  • Step 5: Know that good register allocation can lead to better performance of the program.
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