[PATCH] D121694: [clang][dataflow] Allow disabling built-in transfer functions for CFG terminators

[Yitzhak Mandelbaum via Phabricator via cfe-commits]

ymandel added a comment.

In D121694#3382473 <https://reviews.llvm.org/D121694#3382473>, @xazax.hun wrote:

> The change itself looks good. But out of curiosity, could you give me an example when we do not want to use the builtin transfer functions?

Sure! Pretty much any plain-vanilla dataflow analysis that sticks to its own lattice and doesn't care about the environment. The demo constant-propagation analyses are like this, but we have additional real analyses using the framework in this way. Examples include an analysis to detect raw pointers that could be unique pointers and one that detects missed opportunies to use `std::move`.


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