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Merge pull request #7330 from tausbn/python-fix-bad-adjacentuseuse-join

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Python: Fix bad join in SSA
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Taus
2021-12-09 20:55:45 +01:00
committed by GitHub
parent e7209d1ee1 a716482c1f
commit 6d247bfdf9
1 changed files with 4 additions and 5 deletions
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9
python/ql/lib/semmle/python/essa/SsaCompute.qll
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@@ -478,12 +478,11 @@ private module SsaComputeImpl {
predicate adjacentUseUse(ControlFlowNode use1, ControlFlowNode use2) {
adjacentUseUseSameVar(use1, use2)
or
exists(SsaSourceVariable v, EssaDefinition def, BasicBlock b1, int i1, BasicBlock b2, int i2 |
exists(SsaSourceVariable v, PhiFunction def, BasicBlock b1, int i1, BasicBlock b2, int i2 |
adjacentVarRefs(v, b1, i1, b2, i2) and
variableUse(v, use1, b1, i1) and
definesAt(def, v, b2, i2) and
firstUse(def, use2) and
def instanceof PhiFunction
variableUse(pragma[only_bind_into](v), use1, b1, i1) and
definesAt(def, pragma[only_bind_into](v), b2, i2) and
firstUse(def, use2)
)
}