[PATCH] D52010: RegAllocFast: Rewrite and improve

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


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Comment at: lib/CodeGen/RegAllocFast.cpp:1019-1020
+          unsigned ClassSize1 = RegClassInfo.getOrder(&RC1).size();
+          bool SmallClass0 = ClassSize0 < NumRegDefOperands;
+          bool SmallClass1 = ClassSize1 < NumRegDefOperands;
+          if (SmallClass0 > SmallClass1)
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I was able to fix the failure I see by refining this to the number of defs of a class that may alias the current register's class, though it seems a bit overkill


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D52010/new/

https://reviews.llvm.org/D52010