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the term 'garbage' (#126596)
A clang user pointed out that messages for the static analyzer undefined
assignment checker use the term ‘garbage’, which might have a negative
connotation to some users. This change updates the messages to use the
term ‘uninitialized’. This is the usual reason why a value is undefined
in the static analyzer and describes the logical error that a programmer
should take action to fix.
Out-of-bounds reads can also produce undefined values in the static
analyzer. The right long-term design is to have to the array bounds
checker cover out-of-bounds reads, so we do not cover that case in the
updated messages. The recent improvements to the array bounds checker
make it a candidate to add to the core set of checkers.
rdar://133418644
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This patch introduces the evaluation of ArrayInitLoopExpr
in case of structured bindings and implicit copy/move
constructor. The idea is to call the copy constructor for
every element in the array. The parameter of the copy
constructor is also manually selected, as it is not a part
of the CFG.
Differential Revision: https://reviews.llvm.org/D129496
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Introducing structured binding to data members and more.
To handle binding to arrays, ArrayInitLoopExpr is also
evaluated, which enables the analyzer to store information
in two more cases. These are:
- when a lambda-expression captures an array by value
- in the implicit copy/move constructor for a class
with an array member
Differential Revision: https://reviews.llvm.org/D126613
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