KeithTsui

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

Initilizations at the beginning of LLVM applications.

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

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