Category: Compiler

A transpiler:

• takes code in one high-level language
• rewrites it into another high-level language
• while preserving semantics

Classic examples:

• TypeScript → JavaScript
• Modern JS → older JS
• Wasm → C
• DSL → Rust

What an interpreter is

An interpreter is a program that executes another program directly, instruction …

note from this video

Memory layout

The memory assigned to a program in typical architecture has 4 segments:

• instruction
  • static/global variables
  • function calls and local variables
  • Heap

Let me show an example of program execution:

Stack

there are memory reserved as stack and memory reserved as static or global variable …

This note covers the following points:

• What GNU Compiler Collection (GCC) is

• What LLVM is

• How they differ philosophically and practically

1️⃣ GNU Compiler Collection (GCC)

What it is

GCC = GNU Compiler Collection

Originally:

• A single C compiler (gcc)
  Now:
• A collection of compilers for many languages

…