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LLVM xCORE examples

Maintainer

https://github.com/rlsosborne

Description

LLVM IR examples for the xCORE backend

Introduction

This repository contains various examples demonstrating how to use of the xCORE specific intrinsics present in the LLVM xCORE backend.

Recommended reading

Representation of resources

Resources identifers are represented as pointers to i8 in address space 1. The benefit of representing these as pointers is that we can use LLVM's alias analysis infrastructure to determine whether two resource identifier can point to the same resource. The attributes noalias and nocapture can be applied to resource identifiers if appropriate.

Examples

  • threads.ll - Example showing how to start threads
  • chanends.ll - Example of how to use chanend resources
  • timers.ll - Example of how to use timers
  • ports.ll - Example showing how to use ports
  • events.ll - Example of how to implement XC's select statement using events
  • multiple_returns.ll - Example of how to call a multiple return function