[PATCH] D53931: TableGen: Fix ASAN error

[Nicolai Hähnle via Phabricator via llvm-commits]

nhaehnle added inline comments.


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Comment at: utils/TableGen/SearchableTableEmitter.cpp:168
-                        "' too large to search");
-      return "uint" + utostr(NumBits) + "_t";
     } else if (Field.Enum || Field.IsIntrinsic || Field.IsInstruction)
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kparzysz wrote:
> How does the problem actually occur?  utostr returns a temporary std::string which should exist until the sum is constructed.  What object is used-after-scope?
Must be some temporary object (the ASAN dump calls it "unknown"). To be honest, I was surprised about it as well, but I don't really have the time to dig into it further.


Repository:
  rL LLVM

https://reviews.llvm.org/D53931