CIR - Intermediate representation language

home edit

CIR, aka Clang IR, is an intermediate representation language created in 2020.

#241on PLDB

4Years Old

Download source code:

git clone https://github.com/facebookincubator/clangir

Homepage · Source Code

Clang IR (CIR) is a new IR for Clang.

Tags: intermediate representation language
CIR is developed on GitHub and has 157 stars
Early development of CIR happened in Engineering at Meta
CIR is written in LLVM IR, C++, Assembly language, C, YAML, Python, Objective-C, CMake, reStructuredText, Fortran 90, OpenCL, Objective C++, Make, CUDA, Smalltalk, Markdown, XML, Bourne shell, JSON, HTML, FORTRAN 77, CSV, OCaml, Pascal, starlark, SVG, Perl, Go, CSS, Lisp, Vim script, Scheme, Bazel, Expect, MATLAB, Bash, Dockerfile, JavaScript, C#, Ini, Protocol Buffers, Lua, TypeScript, Tex, Diff, Rust, awk, Swift, Logos, Julia, Mathematica, M4, TOML, D
See also: (1 related languages) LLVM IR
Read more about CIR on the web: 1. 2.
1 PLDB concepts link to CIR: SIL

Example from the web:

// Read from local variable, address in %0.
%1 = cir.load %0 : !cir.ptr<i32>, i32

// Load address from memory at address %0. %3 is used by at least one
// operation that dereferences a pointer.
%3 = cir.load deref %0 : cir.ptr <!cir.ptr<i32>>

Language features

Feature	Supported	Example	Token
Comments	✓	// A comment
Line Comments	✓	// A comment	//
Semantic Indentation	X