[PATCH] D123252: [lld/mac] Don't emit stabs entries for functions folded during ICF

Jez Ng via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Apr 6 21:07:00 PDT 2022


int3 accepted this revision.
int3 added inline comments.
This revision is now accepted and ready to land.


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Comment at: lld/MachO/Symbols.cpp:103
+      isec = canonical;
+      wasIdenticalCodeFolded = true;
+    }
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How do you feel about doing this work in `ConcatInputSection::foldIdentical` instead? We already toggle `ConcatInputSection::wasCoalesced` there, so this would fit in nicely.

(We could also perform the canonicalization of `Defined::isec` there -- I'd previously put it here because InputSections didn't use to hold references to their symbols.)


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Comment at: lld/MachO/Symbols.h:148
   bool includeInSymtab : 1;
+  // Whether this symbol was folded with a different symbol during ICF.
+  bool wasIdenticalCodeFolded : 1;
----------------
nit: "with" suggests a symmetric relationship, "into" seems more apt to me


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D123252/new/

https://reviews.llvm.org/D123252



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