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nitin
2008 Mar 01
1
[LLVMdev] Instruction Scheduling
Dear LLVM'ers,
I am browsing the instruction schedulers available in llc, and
there are many:
-pre-RA-sched = {default, none, simple, simple-noitin, list-burr,
list-tdrr, list-td}
I looked into the sources in lib/CodeGen/SelectionDAG, and I could
find implementation of Sethi-Ullman numbering, list scheduling, etc.
Now, I wish I could find some comparison between the schedulers. I
guess you guys probably have some tests somewhere....