[PATCH] D39995: [SelectionDAG] Make sorting predicate stronger to remove non-deterministic ordering
Florian Hahn via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Nov 14 03:45:47 PST 2017
fhahn added inline comments.
================
Comment at: lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp:9551
[](const CaseCluster &a, const CaseCluster &b) {
- return a.Prob > b.Prob;
});
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I might be missing something but could we still end up with multiple clusters where `a.Prob == b.Prob && a.Low == b.Low` ? Then the order of those nodes would still be non-deterministic, no?
Repository:
rL LLVM
https://reviews.llvm.org/D39995
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