[PATCH] D31828: Bitcode: Move version and global value module code parsers to separate functions. NFCI.

Teresa Johnson via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Apr 11 07:24:10 PDT 2017


tejohnson added inline comments.


================
Comment at: llvm/lib/Bitcode/Reader/BitcodeReader.cpp:388
+  /// not need this flag.
+  bool UseRelativeIDs = false;
+
----------------
pcc wrote:
> tejohnson wrote:
> > Why move this into BitcodeReaderBase, rather than BitcodeReader?
> In D31838 the code that reads names is shared between the module reader and the summary reader. That code needs to know the module version, so I needed to move the module version parsing code into the base class, including the fields that it sets.
Ok, but if this field is only ever going to be relevant to the BitcodeReader derived class, why not have a virtual method that takes the parsed version and can be used to set up whatever fields are relevant for each derived class? I would imagine this won't be the last time we end up needing to guard behavior specific to only one derived reader based on the version.


https://reviews.llvm.org/D31828





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