Register Allocation | Solved Example | Compiler Design

Published: 24 May 2024
on channel: Sigma Solver

411

In this video, you will understand the various topics related to register allocation and assignment. Broadly the contents are as follows:

1. What is Compiler and it significance
2. How to interpret given control flow graph
3. Difference between local and global register allocation
4. How to perform global register allocation
5. How to calculate live in, live out and live ranges
6. How to find conflict in live range overlaps
7. How to draw conflict graph and check for register sufficiency
8. Global register allocation of basic blocks
9. Meaning of Spill cost
10. Formula for spill cost using 'def' and 'use'
11. How to find the spill cost for multiple basic blocks in a program

Chapters in the video:
0:00 Introduction
0:32 Compiler and its need
4:08 Problem statement
4:55 Global and local
6:36 Live Ranges
16:35 Conflict Graph
18:45 Global register allocation
22:15 Spill cost
29:26 Conclusion

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