What is machine dependent optimization?
Machine Dependent Optimization – Machine-dependent optimization is done after the target code has been generated and when the code is transformed according to the target machine architecture. It involves CPU registers and may have absolute memory references rather than relative references.
What are the code optimization techniques?
Code Optimization Techniques-
- Compile Time Evaluation.
- Common sub-expression elimination.
- Dead Code Elimination.
- Code Movement.
- Strength Reduction.
What is machine dependent code?
Machine-dependent optimization is done after the target code has been generated and when the code is transformed according to the target machine architecture. It involves CPU registers and may have absolute memory references rather than relative references.
What are the differences between machine dependent and machine independent code optimizer?
Summary – Machine Dependent vs Machine Independent Code Optimization. The difference between machine dependent and machine independent code optimization is that the machine dependent optimization is applied to object code whereas, the machine independent code optimization is applied to intermediate code.
Which of the following is machine dependent optimization?
Explanation: Machine dependent optimizations are: Peephole optimization which includes redundant optimization, strength reduction, flow of control.
What is meant by Backpatching?
backpatching is a process in which the operand field of an instruction containing a forward reference is left blank initially. the address of the forward reference symbol is put into this field when its definition is encountered in the program.
What are the types of optimization techniques?
Types of Optimization Technique
- Continuous Optimization versus Discrete Optimization.
- Unconstrained Optimization versus Constrained Optimization.
- None, One, or Many Objectives.
- Deterministic Optimization versus Stochastic Optimization.
How many types of Optimisation can be divided?
Explanation: Optimization can be categorized broadly into two types : machine independent and machine dependent. 2.
What is machine independent code optimization?
Machine Independent code optimization tries to make the intermediate code more efficient by transforming a section of code that doesn’t involve hardware components like CPU registers or any absolute memory location. Thus can be used on any processor irrespective of machine specifications.
What are machine dependent code optimization techniques in compiler design?
What are the three functions of Backpatching?
Backpatching technique is incorporated using three functions. Makelist(), merge() and backpatch() are the three functions carried out in two passes to generate code using backpatching. makelist(i) – This is used to create a new list containing three-address location i, and it returns a pointer to the list.