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Revision tags: llvmorg-18.1.8, llvmorg-18.1.7, llvmorg-18.1.6, llvmorg-18.1.5, llvmorg-18.1.4 |
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bbd259af |
| 04-Apr-2024 |
Yitzhak Mandelbaum <ymand@users.noreply.github.com> |
[clang][dataflow] Refactor `widen` API to be explicit about change effect. (#87233)
The previous API relied on pointer equality of inputs and outputs to
signal whether a change occured. This was to
[clang][dataflow] Refactor `widen` API to be explicit about change effect. (#87233)
The previous API relied on pointer equality of inputs and outputs to
signal whether a change occured. This was too subtle and led to bugs in
practice. It was also very limiting: the override could not return an equivalent (but
not identical) value.
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Revision tags: llvmorg-18.1.3, llvmorg-18.1.2, llvmorg-18.1.1, llvmorg-18.1.0, llvmorg-18.1.0-rc4, llvmorg-18.1.0-rc3, llvmorg-18.1.0-rc2, llvmorg-18.1.0-rc1, llvmorg-19-init, llvmorg-17.0.6, llvmorg-17.0.5, llvmorg-17.0.4, llvmorg-17.0.3, llvmorg-17.0.2, llvmorg-17.0.1, llvmorg-17.0.0, llvmorg-17.0.0-rc4, llvmorg-17.0.0-rc3, llvmorg-17.0.0-rc2, llvmorg-17.0.0-rc1, llvmorg-18-init, llvmorg-16.0.6, llvmorg-16.0.5, llvmorg-16.0.4, llvmorg-16.0.3, llvmorg-16.0.2, llvmorg-16.0.1, llvmorg-16.0.0, llvmorg-16.0.0-rc4, llvmorg-16.0.0-rc3, llvmorg-16.0.0-rc2, llvmorg-16.0.0-rc1, llvmorg-17-init, llvmorg-15.0.7, llvmorg-15.0.6, llvmorg-15.0.5 |
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84dd12b2 |
| 03-Nov-2022 |
Yitzhak Mandelbaum <yitzhakm@google.com> |
[clang][dataflow] Add widening API and implement it for built-in boolean model.
* Adds API support for widening of lattice elements and environments,
* Updates the algorithm to apply widening where
[clang][dataflow] Add widening API and implement it for built-in boolean model.
* Adds API support for widening of lattice elements and environments,
* Updates the algorithm to apply widening where appropriate,
* Implements widening for boolean values. In the process, moves the unsoundness
of comparison from the default implementation of
`Environment::ValueModel::compare` to model-specific handling inside
`DataflowEnvironment::equivalentTo`. This change is intended to clarify
the source and location of unsoundess.
This patch is a replacement for, and was based substantially on, https://reviews.llvm.org/D131645.
Differential Revision: https://reviews.llvm.org/D137948
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Revision tags: llvmorg-15.0.4, llvmorg-15.0.3, working, llvmorg-15.0.2, llvmorg-15.0.1, llvmorg-15.0.0, llvmorg-15.0.0-rc3, llvmorg-15.0.0-rc2, llvmorg-15.0.0-rc1, llvmorg-16-init, llvmorg-14.0.6, llvmorg-14.0.5, llvmorg-14.0.4, llvmorg-14.0.3, llvmorg-14.0.2, llvmorg-14.0.1, llvmorg-14.0.0, llvmorg-14.0.0-rc4, llvmorg-14.0.0-rc3, llvmorg-14.0.0-rc2, llvmorg-14.0.0-rc1, llvmorg-15-init, llvmorg-13.0.1, llvmorg-13.0.1-rc3, llvmorg-13.0.1-rc2 |
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6e2aecd7 |
| 29-Nov-2021 |
Stanislav Gatev <sgatev@google.com> |
[clang][dataflow] Add base types for building dataflow analyses
This is part of the implementation of the dataflow analysis framework.
See "[RFC] A dataflow analysis framework for Clang AST" on cfe-
[clang][dataflow] Add base types for building dataflow analyses
This is part of the implementation of the dataflow analysis framework.
See "[RFC] A dataflow analysis framework for Clang AST" on cfe-dev.
Reviewed By: ymandel, xazax.hun, gribozavr2
Differential Revision: https://reviews.llvm.org/D114234
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