25 Commits

Author SHA1 Message Date
Yitzhak Mandelbaum
506ec85ba8 [clang][dataflow] Add support for clang's __builtin_expect.
This patch adds basic modeling of `__builtin_expect`, just to propagate the
(first) argument, making the call transparent.

Driveby: adds tests for proper handling of other builtins.

Differential Revision: https://reviews.llvm.org/D122908
2022-04-04 12:20:43 +00:00
Yitzhak Mandelbaum
ef1e1b3106 [clang][dataflow] Add support for (built-in) (in)equality operators
Adds logical interpretation of built-in equality operators, `==` and `!=`.s

Differential Revision: https://reviews.llvm.org/D122830
2022-04-01 17:13:21 +00:00
Stanislav Gatev
b000b7705a [clang][dataflow] Model the behavior of non-standard optional assignment
Model nullopt, value, and conversion assignment operators.

Reviewed-by: xazax.hun

Differential Revision: https://reviews.llvm.org/D121863
2022-03-17 17:11:12 +00:00
Stanislav Gatev
092a530ca1 [clang][dataflow] Model the behavior of non-standard optional constructors
Model nullopt, inplace, value, and conversion constructors.

Reviewed-by: ymandel, xazax.hun, gribozavr2

Differential Revision: https://reviews.llvm.org/D121602
2022-03-15 08:13:13 +00:00
Stanislav Gatev
cf63e9d4ca [clang][dataflow] Add support for nested composite bool expressions
This is part of the implementation of the dataflow analysis framework.
See "[RFC] A dataflow analysis framework for Clang AST" on cfe-dev.

Differential Revision: https://reviews.llvm.org/D121455
2022-03-14 17:18:30 +00:00
Stanislav Gatev
1e5715857a [clang][dataflow] Extend flow conditions from block terminators
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

Differential Revision: https://reviews.llvm.org/D120984
2022-03-07 17:50:44 +00:00
Stanislav Gatev
03dff12197 Revert "Revert "[clang][dataflow] Add support for global storage values""
This reverts commit 169e1aba55bed9f7ffa000f9f170ab2defbc40b2.

It also fixes an incorrect assumption in `initGlobalVars`.
2022-02-23 13:57:34 +00:00
Stanislav Gatev
169e1aba55 Revert "[clang][dataflow] Add support for global storage values"
This reverts commit 7ea103de140b59a64fc884fa90afd2213619384d.
2022-02-23 10:32:17 +00:00
Stanislav Gatev
7ea103de14 [clang][dataflow] Add support for global storage values
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

Differential Revision: https://reviews.llvm.org/D120149
2022-02-23 08:27:58 +00:00
Stanislav Gatev
a480841566 Add missing break statement in switch. 2022-02-17 09:37:02 +00:00
Stanislav Gatev
dd4dde8d39 [clang][dataflow] Add transfer functions for logical and, or, not.
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/D119953
2022-02-17 09:09:59 +00:00
Stanislav Gatev
75c22b382f [clang][dataflow] Add a transfer function for CXXBoolLiteralExpr
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/D118236
2022-01-26 15:33:00 +00:00
Stanislav Gatev
64ba462b6e [clang][dataflow] Add a transfer function for InitListExpr
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/D118119
2022-01-25 16:28:15 +00:00
Stanislav Gatev
8e53ae3d37 [clang][dataflow] Add a transfer function for conditional operator
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/D117667
2022-01-19 16:25:05 +00:00
Stanislav Gatev
acd4b03590 Revert "Revert "[clang][dataflow] Add a test to justify skipping past references in UO_Deref""
This reverts commit a0262043bb87fdef68c817722de320a5dd9eb9c9.

Add the -fno-delayed-template-parsing arg to fix the failing test on Windows.
2022-01-19 10:00:01 +00:00
Stanislav Gatev
a0262043bb Revert "[clang][dataflow] Add a test to justify skipping past references in UO_Deref"
This reverts commit 68226e572f41105446413b12ee95ab5540b2b6ac.
2022-01-19 06:46:37 +00:00
Stanislav Gatev
68226e572f [clang][dataflow] Add a test to justify skipping past references in UO_Deref
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/D117567
2022-01-18 21:27:43 +00:00
Stanislav Gatev
59e031ff90 [clang][dataflow] Add transfer function for addrof
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/D117496
2022-01-18 11:23:08 +00:00
Stanislav Gatev
782eced561 [clang][dataflow] Replace initValueInStorageLocation with createValue
Since Environment's setValue method already does part of the work that
initValueInStorageLocation does, we can factor out a new createValue
method to reduce the duplication.

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

Differential Revision: https://reviews.llvm.org/D117493
2022-01-18 07:09:35 +00:00
Stanislav Gatev
37e6496c80 [clang][dataflow] Add transfer functions for bind temporary and static cast
This is part of the implementation of the dataflow analysis framework.
See "[RFC] A dataflow analysis framework for Clang AST" on cfe-dev.

Differential Revision: https://reviews.llvm.org/D117339
2022-01-16 17:41:02 +00:00
Stanislav Gatev
7d941d6d21 [clang][dataflow] Add transfer functions for constructors
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

Differential Revision: https://reviews.llvm.org/D117218
2022-01-14 14:58:01 +00:00
Stanislav Gatev
963f40051a [clang][dataflow] Add transfer functions for initializers
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

Differential Revision: https://reviews.llvm.org/D117123
2022-01-12 21:51:39 +00:00
Stanislav Gatev
99f7d55eee [clang][dataflow] Add transfer functions for data members and this pointers
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

Differential Revision: https://reviews.llvm.org/D117012
2022-01-12 07:38:26 +00:00
Stanislav Gatev
e7481f6ee5 [clang][dataflow] Add transfer functions for assignment
This is part of the implementation of the dataflow analysis framework.
See "[RFC] A dataflow analysis framework for Clang AST" on cfe-dev.

Differential Revision: https://reviews.llvm.org/D116596
2022-01-10 19:35:50 +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