NoQ added a comment.
Aha, ok, sounds like i thought that it's not worth it to inline the constructor
for an argument when the call itself is not inlined, therefore i didn't model
the construction context for this call. See also D49443#1193290
<https://reviews.llvm.org/D49443#1193290>. Your example shows that i was wrong
to give up and this is something we should totally implement.
The proper solution is to model the target region in `ExprEngine` as a
parameter region based on the `ParmVarDecl` that //would have been used if the
function was inlined//, instead of the dummy temporary. Then it'll be kept
alive as an object under construction.
The most annoying part is to make sure that you're using the same
`FunctionDecl` consistently everywhere. If this turns out to be too annoying,
we could also replace `VarRegion{ParmVarDecl}` with a new sort of region that
doesn't include a specific `ParmVarDecl` but merely a parameter index (and
maybe a type or a call site expr), so that not to bother with redeclarations;
this is the right thing to do anyway.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D77229/new/
https://reviews.llvm.org/D77229
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