[PATCH] D48102: Improve handling of COPY instructions with identical value numbers

[Krzysztof Parzyszek via Phabricator via llvm-commits]

kparzysz added inline comments.


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Comment at: lib/CodeGen/RegisterCoalescer.cpp:2873
+          LiveRange::iterator T = S.find(Def);
+          assert(Id != S.end() && T != S.end() && T->valno == Id->valno);
+#endif
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tpr wrote:
> I now have a test case that hits this assert. I will investigate further.
It could be because of a basic block boundary between Def and OtherDef.  You can probably delete this code under #ifndef NDEBUG.


Repository:
  rL LLVM

https://reviews.llvm.org/D48102