[Lldb-commits] [PATCH] D99694: Add support for getting signed ObjC tagged pointer values

Jim Ingham via Phabricator via lldb-commits lldb-commits at lists.llvm.org
Wed Mar 31 17:19:07 PDT 2021

jingham created this revision.
jingham added a reviewer: JDevlieghere.
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The ObjC runtime offers both signed & unsigned tagged pointer value
accessors to tagged pointer providers, but lldb's tagged pointer
code only implemented the unsigned one.  This patch adds an
emulation of the signed one.


The motivation for doing this is that NSNumbers use the signed
accessor (they are always signed) and we need to follow that in our
summary provider or we will get incorrect values for negative


The data-formatter-objc test file had NSNumber examples (along with lots of other
goodies) but the NSNumber values weren't tested.  So I also added
checks for those values to the test.


I also did a quick audit of the other types in that main.m file, and
it looks like pretty much all the other values are either intermediates
or are tested.

  rG LLVM Github Monorepo



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