Rust: Add Rust SSA inconsistency infrastructure.

rust/ql/src/queries/diagnostics/SsaConsistencyCounts.ql

@@ -0,0 +1,14 @@
+/**
+ * @name Static single assignment inconsistency counts
+ * @description Counts the number of static single assignment inconsistencies of each type.  This query is intended for internal use.
+ * @kind diagnostic
+ * @id rust/diagnostics/ssa-consistency-counts
+ */
+
+ private import codeql.rust.dataflow.internal.SsaImpl as SsaImpl
+
+// see also `rust/diagnostics/ssa-consistency`, which lists the
+// individual inconsistency results.
+from string type, int num
+where num = SsaImpl::Consistency::getInconsistencyCounts(type)
+select type, num

rust/ql/src/queries/summary/Stats.qll

@@ -10,6 +10,7 @@ private import codeql.rust.internal.AstConsistency as AstConsistency
 private import codeql.rust.internal.PathResolutionConsistency as PathResolutionConsistency
 private import codeql.rust.controlflow.internal.CfgConsistency as CfgConsistency
 private import codeql.rust.dataflow.internal.DataFlowConsistency as DataFlowConsistency
+private import codeql.rust.dataflow.internal.SsaImpl as SsaImpl
 private import codeql.rust.Concepts
 private import codeql.rust.Diagnostics
 private import codeql.rust.security.SensitiveData
@@ -57,6 +58,13 @@ int getTotalCfgInconsistencies() {
   result = sum(string type | | CfgConsistency::getCfgInconsistencyCounts(type))
 }
 
+/**
+ * Gets a count of the total number of SSA inconsistencies in the database.
+ */
+int getTotalSsaInconsistencies() {
+  result = sum(string type | | SsaImpl::Consistency::getInconsistencyCounts(type))
+}
+
 /**
  * Gets a count of the total number of data flow inconsistencies in the database.
  */
@@ -142,6 +150,8 @@ predicate inconsistencyStats(string key, int value) {
   or
   key = "Inconsistencies - CFG" and value = getTotalCfgInconsistencies()
   or
+  key = "Inconsistencies - SSA" and value = getTotalSsaInconsistencies()
+  or
   key = "Inconsistencies - data flow" and value = getTotalDataFlowInconsistencies()
 }