May 2015
Intermediate to advanced
296 pages
5h 10m
English
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Chapter 5. Implementing Optimizations
In this chapter, we will cover the following recipes:
- Writing a dead code elimination pass
- Writing an inlining transformation pass
- Writing a pass for memory optimization
- Combining LLVM IR
- Transforming and optimizing loops
- Reassociating expressions
- Vectorizing IR
- Other optimization passes
Introduction
In the previous chapter, we saw how to write a pass in LLVM. We also demonstrated writing a few analysis passes with an example of alias analysis. Those passes just read the source code and gave us information about it. In this chapter, we will go further and write transformation passes that will actually change the source code, trying to optimize it for the faster execution of code. In the first two recipes, we will show ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.