LICM bug - Githubissues

arcana-lab / noelle

NOELLE Offers Empowering LLVM Extensions

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LICM bug #4

Closed scampanoni closed 3 years ago

scampanoni commented 3 years ago

The LICM transformation has the following bug. The order of loop invariants to extract is computed incorrectly using dominators. We need to use the PDG instead.

Benchmark affected:

[ ] MiBench->susan_c
[ ] MiBench->sha
[ ] MiBench->lout

scampanoni commented 3 years ago

This bug has been fixed by recomputing the dominators in LICM