jmmartinez added inline comments.

================
Comment at: llvm/lib/IR/DIBuilder.cpp:789
+  return createLocalVariable(
+      VMContext, getSubprogramNodesTrackingVector(Scope), Scope, Name,
+      /* ArgNo */ 0, File, LineNo, Ty, AlwaysPreserve, Flags, AlignInBits);
----------------
krisb wrote:
> jmmartinez wrote:
> > I'll be tempted to move the call to 
> > `getSubprogramNodesTrackingVector(Scope)` into `createLocalVariable`. It 
> > seems that every time `createLocalVariable` is called, 
> > `getSubprogramNodesTrackingVector(Scope)` is passed as value for 
> > `PreservedNodes`.
> > 
> > (I've just started reviewing so I may be missing some other modifications)
> That's right, but the problem is in the fact that `createLocalVariable()` is 
> static while `getSubprogramNodesTrackingVector()` is a DIBuilder's member. To 
> move the call inside `createLocalVariable()` we need either to make it a 
> member of DIBuilder or to pass DIBuilder object to it. None of these options 
> looks much better to me, honestly. 
You're right. I didn't realize createLocalVariable was not a member of 
DIBuilder.

Ok for me to keep it as it .


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D143984/new/

https://reviews.llvm.org/D143984

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