Instruction scheduling in LLVM

Hi all,

Can anyone tell me the current state of instruction scheduling in LLVM, i.e. what all internal scheduling algorithms and whether constraint solving methods are used in LLVM for a single issue processor ? Please let me know if anyone has any information about it.


Hi Siddharh :

You may find this tutorial on llvm machine scheduler useful It gives an overview of scheduling algorithms used by llvm. It also explains how you could override the default scheduling algorithm in various stages.

best regards.


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Hi Javed,

Thanks a lot for the info. It is really useful.