Commit Graph

5 Commits

Author SHA1 Message Date
Stanislav Gatev 3dd7877b27 Revert "[clang][dataflow] Move dataflow testing support out of unittests"
This reverts commit 26bbde2612.
2022-03-09 15:38:51 +00:00
Stanislav Gatev 26bbde2612 [clang][dataflow] Move dataflow testing support out of unittests
This enables tests out of clang/unittests/Analysis/FlowSensitive to
use the testing support utilities.

Reviewed-by: ymandel, gribozavr2

Differential Revision: https://reviews.llvm.org/D121285
2022-03-09 15:31:02 +00:00
Yitzhak Mandelbaum 3595189217 [clang][dataflow] Allow clients to disable built-in transfer functions.
These built-in functions build the (sophisticated) model of the code's
memory. This model isn't used by all analyses, so we provide for disabling it to
avoid incurring the costs associated with its construction.

Differential Revision: https://reviews.llvm.org/D118178
2022-01-26 17:24:59 +00:00
Yitzhak Mandelbaum 64f7b2d4bf [clang][dataflow] Change `transfer` function to update lattice element in place.
Currently, the transfer function returns a new lattice element, which forces an
unnecessary copy on processing each CFG statement.

Differential Revision: https://reviews.llvm.org/D116834
2022-01-10 14:45:30 +00:00
Stanislav Gatev af7bc39ba1 [clang][dataflow] Add transfer function for VarDecl statements
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: xazax.hun

Differential Revision: https://reviews.llvm.org/D116368
2022-01-04 09:16:01 +00:00