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Merge pull request #19147 from aschackmull/ssa/writedef-source-refactor

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Ssa: Refactor data flow integration to make the input signature simpler
This commit is contained in:
Anders Schack-Mulligen
2025-03-31 10:07:09 +02:00
committed by GitHub
parent 1c93e53fb7 0d1ac7789b
commit a8b19d2b21
11 changed files with 54 additions and 112 deletions
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10
cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/SsaInternals.qll
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@@ -956,8 +956,6 @@ class GlobalDef extends Definition {
private module SsaImpl = SsaImplCommon::Make<Location, SsaInput>;
private module DataFlowIntegrationInput implements SsaImpl::DataFlowIntegrationInputSig {
private import codeql.util.Void
class Expr extends Instruction {
Expr() {
exists(IRBlock bb, int i |
@@ -977,13 +975,7 @@ private module DataFlowIntegrationInput implements SsaImpl::DataFlowIntegrationI
)
}
predicate ssaDefAssigns(SsaImpl::WriteDefinition def, Expr value) { none() }
class Parameter extends Void {
Location getLocation() { none() }
}
predicate ssaDefInitializesParam(SsaImpl::WriteDefinition def, Parameter p) { none() }
predicate ssaDefHasSource(SsaImpl::WriteDefinition def) { none() }
predicate allowFlowIntoUncertainDef(SsaImpl::UncertainWriteDefinition def) { any() }