llvm

What problem does it solve?

This Skill empowers users to understand, generate, and manipulate LLVM Intermediate Representation (IR), enabling deeper insights into compiler optimizations and custom tool development.

Core Features & Use Cases

• IR Generation: Learn to emit LLVM IR from source code using Clang.
• Optimization Passes: Apply and analyze various optimization passes using opt.
• IR Inspection: Understand key IR constructs and debugging missed optimizations.
• Use Case: Debugging why a specific optimization isn't being applied to your C++ code by inspecting the generated LLVM IR and understanding the pass pipeline.

Quick Start

Generate LLVM IR from a C source file named 'main.c' using the command clang -O0 -emit-llvm -S main.c -o main.ll.