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Merge pull request #19044 from aschackmull/ssa/useuse-trim

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Ssa: Trim the use-use relation to skip irrelevant nodes
This commit is contained in:
Anders Schack-Mulligen
2025-03-28 11:55:34 +01:00
committed by GitHub
parent f2f5739cc7 c6cee489e4
commit 0c74f21107
22 changed files with 1577 additions and 3115 deletions
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4
cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/SsaInternals.qll
View File

@@ -1007,9 +1007,11 @@ private module DataFlowIntegrationInput implements SsaImpl::DataFlowIntegrationI
}
}
predicate guardControlsBlock(Guard guard, SsaInput::BasicBlock bb, boolean branch) {
predicate guardDirectlyControlsBlock(Guard guard, SsaInput::BasicBlock bb, boolean branch) {
guard.(IRGuards::IRGuardCondition).controls(bb, branch)
}
predicate keepAllPhiInputBackEdges() { any() }
}
private module DataFlowIntegrationImpl = SsaImpl::DataFlowIntegration<DataFlowIntegrationInput>;

22
cpp/ql/test/library-tests/dataflow/dataflow-tests/localFlow-ir.expected
View File

@@ -68,31 +68,23 @@
| test.cpp:10:8:10:9 | t2 | test.cpp:11:7:11:8 | [input] SSA phi read(t2) |
| test.cpp:10:8:10:9 | t2 | test.cpp:11:7:11:8 | [input] SSA phi(*t2) |
| test.cpp:10:8:10:9 | t2 | test.cpp:13:10:13:11 | t2 |
| test.cpp:11:7:11:8 | [input] SSA phi read(t2) | test.cpp:15:3:15:6 | SSA phi read(t2) |
| test.cpp:11:7:11:8 | [input] SSA phi(*t2) | test.cpp:15:3:15:6 | SSA phi(*t2) |
| test.cpp:11:7:11:8 | [input] SSA phi read(t2) | test.cpp:15:8:15:9 | t2 |
| test.cpp:11:7:11:8 | [input] SSA phi(*t2) | test.cpp:15:8:15:9 | t2 |
| test.cpp:11:7:11:8 | t1 | test.cpp:21:8:21:9 | t1 |
| test.cpp:12:5:12:10 | ... = ... | test.cpp:13:10:13:11 | t2 |
| test.cpp:12:10:12:10 | 0 | test.cpp:12:5:12:10 | ... = ... |
| test.cpp:13:5:13:8 | [input] SSA phi read(t2) | test.cpp:15:3:15:6 | SSA phi read(t2) |
| test.cpp:13:5:13:8 | [input] SSA phi(*t2) | test.cpp:15:3:15:6 | SSA phi(*t2) |
| test.cpp:13:10:13:11 | t2 | test.cpp:13:5:13:8 | [input] SSA phi read(t2) |
| test.cpp:13:10:13:11 | t2 | test.cpp:13:5:13:8 | [input] SSA phi(*t2) |
| test.cpp:15:3:15:6 | SSA phi read(t2) | test.cpp:15:8:15:9 | t2 |
| test.cpp:15:3:15:6 | SSA phi(*t2) | test.cpp:15:8:15:9 | t2 |
| test.cpp:13:10:13:11 | t2 | test.cpp:15:8:15:9 | t2 |
| test.cpp:13:10:13:11 | t2 | test.cpp:15:8:15:9 | t2 |
| test.cpp:15:8:15:9 | t2 | test.cpp:23:15:23:16 | [input] SSA phi read(*t2) |
| test.cpp:15:8:15:9 | t2 | test.cpp:23:15:23:16 | [input] SSA phi read(t2) |
| test.cpp:17:3:17:8 | ... = ... | test.cpp:21:8:21:9 | t1 |
| test.cpp:17:8:17:8 | 0 | test.cpp:17:3:17:8 | ... = ... |
| test.cpp:21:8:21:9 | t1 | test.cpp:23:15:23:16 | [input] SSA phi read(t1) |
| test.cpp:21:8:21:9 | t1 | test.cpp:23:15:23:16 | [input] SSA phi(*t1) |
| test.cpp:21:8:21:9 | t1 | test.cpp:23:19:23:19 | SSA phi read(t1) |
| test.cpp:21:8:21:9 | t1 | test.cpp:23:19:23:19 | SSA phi(*t1) |
| test.cpp:23:15:23:16 | 0 | test.cpp:23:15:23:16 | 0 |
| test.cpp:23:15:23:16 | 0 | test.cpp:23:15:23:16 | [input] SSA phi(*i) |
| test.cpp:23:15:23:16 | 0 | test.cpp:23:19:23:19 | SSA phi(*i) |
| test.cpp:23:15:23:16 | [input] SSA phi read(*t2) | test.cpp:23:19:23:19 | SSA phi read(*t2) |
| test.cpp:23:15:23:16 | [input] SSA phi read(i) | test.cpp:23:19:23:19 | SSA phi read(i) |
| test.cpp:23:15:23:16 | [input] SSA phi read(t1) | test.cpp:23:19:23:19 | SSA phi read(t1) |
| test.cpp:23:15:23:16 | [input] SSA phi read(t2) | test.cpp:23:19:23:19 | SSA phi read(t2) |
| test.cpp:23:15:23:16 | [input] SSA phi(*i) | test.cpp:23:19:23:19 | SSA phi(*i) |
| test.cpp:23:15:23:16 | [input] SSA phi(*t1) | test.cpp:23:19:23:19 | SSA phi(*t1) |
| test.cpp:23:19:23:19 | SSA phi read(*t2) | test.cpp:24:10:24:11 | t2 |
| test.cpp:23:19:23:19 | SSA phi read(i) | test.cpp:23:19:23:19 | i |
| test.cpp:23:19:23:19 | SSA phi read(t1) | test.cpp:23:23:23:24 | t1 |