c5950d2c9d
Previously, the `Load` would be associated with the `CrementOperation` rather than its operand, which gave surprising results when mapping taint sinks back to `Expr`. The changes in `raw_ir.expected` are to add `Copy` operations on the `x++` in code like `y = x++`. This is now needed because the result that `x++` would otherwise have (the Load) no longer belongs to the `++` expression. Copies are inserted to ensure that all expressions are associated with an `Instruction` result. The changes in `*aliased_ssa_ir.expected` appear to be just wobble.
CodeQL
This open source repository contains the standard CodeQL libraries and queries that power LGTM, and the other products that Semmle makes available to its customers worldwide.
How do I learn CodeQL and run queries?
There is extensive documentation on getting started with writing CodeQL. You can use the interactive query console on LGTM.com or the CodeQL for Visual Studio Code extension to try out your queries on any open source project that's currently being analyzed.
Contributing
We welcome contributions to our standard library and standard checks. Do you have an idea for a new check, or how to improve an existing query? Then please go ahead and open a pull request! Before you do, though, please take the time to read our contributing guidelines. You can also consult our style guides to learn how to format your code for consistency and clarity, how to write query metadata, and how to write query help documentation for your query.
License
The code in this repository is licensed under Apache License 2.0 by Semmle.