Go: improve path summary by changing post update nodes#13473
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owen-mc wants to merge 2 commits intogithub:mainfrom
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Go: improve path summary by changing post update nodes#13473owen-mc wants to merge 2 commits intogithub:mainfrom
owen-mc wants to merge 2 commits intogithub:mainfrom
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smowton
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| MkImplicitVarargsSlice(CallExpr c) { c.hasImplicitVarargs() } or | ||
| MkFlowSummaryNode(FlowSummaryImpl::Private::SummaryNode sn) | ||
| MkFlowSummaryNode(FlowSummaryImpl::Private::SummaryNode sn) or | ||
| MkPostUpdateNode(IR::Instruction insn) { insn = updatedInstruction() } |
| result = IR::evalExprInstruction(any(SendStmt s).getChannel()) | ||
| } | ||
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| private IR::Instruction getAccessPathPredecessor2(IR::Instruction insn) { |
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Looks like getAWrittenNode is now unused, so we could remove that and getAccessPathPredecessor then remove the 2 here
| result = getAWrittenInstruction() | ||
| } | ||
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| private Expr updatedExpr() { |
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Not needed now we have proper post-update nodes in #14751. |
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Cf. this comment and the surrounding discussion.
This PR adds new data-flow nodes which are used for post-update nodes. This means that the post-update node will now be in the expected place. This should make path summaries easier to understand.