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Open
Created by John Zhang@u5157779Developer

ASM-style IR builder

Created by: wks

This issue discusses a higher-level abstraction over the IR builder API. It will allow the client to construct Mu IR CFG in a stateful style. The stateful builder will hold a pointer to the "current basic block" at any time. New instructions are implicitly appended to the end of the current basic block. Such interface can also emulate fall-through-style ASM instructions, such as JL, JE, JNE, etc.

It is a layer above the API. The muapi.h should still be kept minimal.

There is a problem in implementation. Such builder is easy to build in SSA form, but since we have switched to the "goto-with-values" form, more book-keeping needs to be done in the client. Probably we still need a soup of objects in the client and do liveness analysis and convert SSA to goto-with-value.