bdad9e197b
Before:
```
[2023-08-24 15:47:20] Evaluated non-recursive predicate _IRBlock#896e97af::IRBlock::dominates#1#dispred#ff_Ssa#da392372::Make#SsaInternals#7b362d2f::SsaInpu__#antijoin_rhs@94b1847k in 9831ms (size: 70660).
Evaluated relational algebra for predicate _IRBlock#896e97af::IRBlock::dominates#1#dispred#ff_Ssa#da392372::Make#SsaInternals#7b362d2f::SsaInpu__#antijoin_rhs@94b1847k with tuple counts:
1121232 ~0% {4} r1 = JOIN _DataFlowUtil#47741e1f::Cached::simpleLocalFlowStep#2#ff_10#join_rhs_DataFlowUtil#47741e1f::TSsaPhiN__#shared WITH Ssa#da392372::Make#SsaInternals#7b362d2f::SsaInput#::DefinitionExt::definesAt#4#dispred#fffff ON FIRST 1 OUTPUT Rhs.2, Lhs.0, Lhs.1, Lhs.2
265759166 ~2% {4} r2 = JOIN r1 WITH IRBlock#896e97af::IRBlock::dominates#1#dispred#ff ON FIRST 1 OUTPUT Lhs.3, Rhs.1, Lhs.1, Lhs.2
70684 ~5% {3} r3 = JOIN r2 WITH project#DataFlowUtil#47741e1f::Node::hasIndexInBlock#fff ON FIRST 2 OUTPUT Lhs.2, Lhs.3, Lhs.0
return r3
[2023-08-24 15:47:29] Evaluated non-recursive predicate DataFlowUtil#47741e1f::SsaPhiNode::getAnInput#1#dispred#fff@b6f296tl in 8943ms (size: 1121232).
Evaluated relational algebra for predicate DataFlowUtil#47741e1f::SsaPhiNode::getAnInput#1#dispred#fff@b6f296tl with tuple counts:
1050572 ~2% {3} r1 = _DataFlowUtil#47741e1f::Cached::simpleLocalFlowStep#2#ff_10#join_rhs_DataFlowUtil#47741e1f::TSsaPhiN__#shared AND NOT _IRBlock#896e97af::IRBlock::dominates#1#dispred#ff_Ssa#da392372::Make#SsaInternals#7b362d2f::SsaInpu__#antijoin_rhs(Lhs.0, Lhs.1, Lhs.2)
1050572 ~3% {3} r2 = SCAN r1 OUTPUT In.1, false, In.2
1121232 ~0% {3} r3 = JOIN _DataFlowUtil#47741e1f::Cached::simpleLocalFlowStep#2#ff_10#join_rhs_DataFlowUtil#47741e1f::TSsaPhiN__#shared WITH Ssa#da392372::Make#SsaInternals#7b362d2f::SsaInput#::DefinitionExt::definesAt#4#dispred#fffff ON FIRST 1 OUTPUT Rhs.2, Lhs.1, Lhs.2
265759166 ~1% {3} r4 = JOIN r3 WITH IRBlock#896e97af::IRBlock::dominates#1#dispred#ff ON FIRST 1 OUTPUT Lhs.2, Rhs.1, Lhs.1
70684 ~0% {2} r5 = JOIN r4 WITH project#DataFlowUtil#47741e1f::Node::hasIndexInBlock#fff ON FIRST 2 OUTPUT Lhs.2, Lhs.0
70684 ~0% {3} r6 = SCAN r5 OUTPUT In.0, true, In.1
1121256 ~2% {3} r7 = r2 UNION r6
return r7
```
After:
```
Evaluated non-recursive predicate DataFlowUtil#47741e1f::SsaPhiNode::getAnInput#1#dispred#fff@59ab2a2e in 456ms (size: 1117096).
Evaluated relational algebra for predicate DataFlowUtil#47741e1f::SsaPhiNode::getAnInput#1#dispred#fff@59ab2a2e with tuple counts:
384518 ~0% {2} r1 = JOIN DataFlowUtil#47741e1f::TSsaPhiNode#ff WITH Ssa#da392372::Make#SsaInternals#7b362d2f::SsaInput#::DefinitionExt::definesAt#4#dispred#fffff ON FIRST 1 OUTPUT Lhs.1, Rhs.2
1121232 ~0% {3} r2 = JOIN r1 WITH DataFlowUtil#47741e1f::Cached::simpleLocalFlowStep#2#ff_10#join_rhs ON FIRST 1 OUTPUT Rhs.1, Lhs.0, Lhs.1
1117447 ~0% {4} r3 = JOIN r2 WITH project#DataFlowUtil#47741e1f::Node::hasIndexInBlock#fff ON FIRST 1 OUTPUT Lhs.2, Rhs.1, Lhs.1, Lhs.0
70684 ~0% {2} r4 = JOIN r3 WITH IRBlock#896e97af::IRBlock::dominates#1#dispred#ff ON FIRST 2 OUTPUT Lhs.2, Lhs.3
70684 ~0% {3} r5 = SCAN r4 OUTPUT In.0, true, In.1
1117447 ~0% {4} r6 = JOIN r2 WITH project#DataFlowUtil#47741e1f::Node::hasIndexInBlock#fff ON FIRST 1 OUTPUT Lhs.2, Rhs.1, Lhs.1, Lhs.0
{4} r7 = r6 AND NOT IRBlock#896e97af::IRBlock::dominates#1#dispred#ff(Lhs.0, Lhs.1)
1046763 ~0% {2} r8 = SCAN r7 OUTPUT In.2, In.3
1046763 ~3% {3} r9 = SCAN r8 OUTPUT In.0, false, In.1
1117447 ~2% {3} r10 = r5 UNION r9
return r10
```
CodeQL
This open source repository contains the standard CodeQL libraries and queries that power GitHub Advanced Security and the other application security products that GitHub makes available to its customers worldwide.
How do I learn CodeQL and run queries?
There is extensive documentation on getting started with writing CodeQL using the CodeQL extension for Visual Studio Code and the CodeQL CLI.
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.
For information on contributing to CodeQL documentation, see the "contributing guide" for docs.
License
The code in this repository is licensed under the MIT License by GitHub.
The CodeQL CLI (including the CodeQL engine) is hosted in a different repository and is licensed separately. If you'd like to use the CodeQL CLI to analyze closed-source code, you will need a separate commercial license; please contact us for further help.
Visual Studio Code integration
If you use Visual Studio Code to work in this repository, there are a few integration features to make development easier.
CodeQL for Visual Studio Code
You can install the CodeQL for Visual Studio Code extension to get syntax highlighting, IntelliSense, and code navigation for the QL language, as well as unit test support for testing CodeQL libraries and queries.
Tasks
The .vscode/tasks.json file defines custom tasks specific to working in this repository. To invoke one of these tasks, select the Terminal | Run Task... menu option, and then select the desired task from the dropdown. You can also invoke the Tasks: Run Task command from the command palette.