LLVM研习

Showing what is Monad Reader and State, and how to understand them exactly.

编译的全过程，可以从两个方向去看，一是从上往下，另一个是从下往上看。 从上层往下看，也就是从编程语言往指令集、指令集的硬件实现，的方向看，这是一步步具象化的过程，也就是从问题域具象到实现域的过程。

Simple Trace scheduling among basic blocks in order to remove unnecessory branching.

Showing the Function Call Lowering procedure in LLVM.

Three kinds of dependencies in ISel DAG, Chain, Operands and Glue.

Demystify Complex pattern in LLVM DAG-based Instruction selection

Records the relevant function calls during DAG-based instruction selection.

There are actually three way to find the location of data your code access.

How to custom a Selection DAG Node in target description file.

A flowchart to show the main transformations of IR into Asm or binary code.

LLVM backend class descriptions, particular for TargetLowering and FrameLowering.

The LLVM backend transformation steps from IR Lowering to Asm output and their related code.

IR Memory Representation and how to build up those IRs.

the third part of LLVM IR to Asm that shows the passes for transformations and analyses.

Load a.ll file and parse it into Module After done some intitializations for LLVM backen.

This aritcle is to show how a simple LLVM IR example is transformed into RISCV Assembly. Part One.

There are eight big steps for adding a new llvm backend.

Specify the needed steps for adding a new instruction to existing llvm backend.

This aritcle is to show the steps for creating an LLVM Backend.