diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
index acaf7569439..7b4dc602519 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/aliased_ssa/Instruction.qll
@@ -120,9 +120,7 @@ module InstructionSanity {
     )
   }
 
-  query predicate duplicateChiOperand(ChiInstruction chi) {
-    chi.getTotal() = chi.getPartial()
-  }
+  query predicate duplicateChiOperand(ChiInstruction chi) { chi.getTotal() = chi.getPartial() }
 
   /**
    * Holds if an instruction, other than `ExitFunction`, has no successors.
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
index acaf7569439..7b4dc602519 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/raw/Instruction.qll
@@ -120,9 +120,7 @@ module InstructionSanity {
     )
   }
 
-  query predicate duplicateChiOperand(ChiInstruction chi) {
-    chi.getTotal() = chi.getPartial()
-  }
+  query predicate duplicateChiOperand(ChiInstruction chi) { chi.getTotal() = chi.getPartial() }
 
   /**
    * Holds if an instruction, other than `ExitFunction`, has no successors.
diff --git a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
index acaf7569439..7b4dc602519 100644
--- a/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
+++ b/cpp/ql/src/semmle/code/cpp/ir/implementation/unaliased_ssa/Instruction.qll
@@ -120,9 +120,7 @@ module InstructionSanity {
     )
   }
 
-  query predicate duplicateChiOperand(ChiInstruction chi) {
-    chi.getTotal() = chi.getPartial()
-  }
+  query predicate duplicateChiOperand(ChiInstruction chi) { chi.getTotal() = chi.getPartial() }
 
   /**
    * Holds if an instruction, other than `ExitFunction`, has no successors.
diff --git a/cpp/ql/test/library-tests/syntax-zoo/aliased_ssa_sanity.expected b/cpp/ql/test/library-tests/syntax-zoo/aliased_ssa_sanity.expected
index 552c0693ad4..ec35510d5e2 100644
--- a/cpp/ql/test/library-tests/syntax-zoo/aliased_ssa_sanity.expected
+++ b/cpp/ql/test/library-tests/syntax-zoo/aliased_ssa_sanity.expected
@@ -28,18 +28,20 @@ missingOperand
 | ir.cpp:823:7:823:13 | IndirectMayWriteSideEffect: call to Base | Instruction 'IndirectMayWriteSideEffect' is missing an expected operand with tag 'Address' in function '$@'. | ir.cpp:799:6:799:25 | IR: HierarchyConversions | void HierarchyConversions() |
 | ir.cpp:824:7:824:26 | IndirectMayWriteSideEffect: call to Base | Instruction 'IndirectMayWriteSideEffect' is missing an expected operand with tag 'Address' in function '$@'. | ir.cpp:799:6:799:25 | IR: HierarchyConversions | void HierarchyConversions() |
 | misc.c:125:5:125:11 | CopyValue: (statement expression) | Instruction 'CopyValue' is missing an expected operand with tag 'Unary' in function '$@'. | misc.c:97:6:97:10 | IR: misc3 | void misc3() |
+| try_catch.cpp:13:5:13:16 | Chi: call to exn1 | Instruction 'Chi' is missing an expected operand with tag 'ChiTotal' in function '$@'. | try_catch.cpp:11:6:11:17 | IR: bypass_catch | void bypass_catch() |
 unexpectedOperand
 duplicateOperand
 missingPhiOperand
 | cpp11.cpp:141:7:141:7 | Phi: g | cpp11.cpp:161:16:161:16 | NoOp: label ...: |
 missingOperandType
+duplicateChiOperand
 instructionWithoutSuccessor
 | VacuousDestructorCall.cpp:2:29:2:29 | InitializeParameter: y |
 | assume0.cpp:7:2:7:2 | Chi: call to f |
-| condition_decls.cpp:16:19:16:20 | IndirectMayWriteSideEffect: call to BoxedInt |
-| condition_decls.cpp:26:23:26:24 | IndirectMayWriteSideEffect: call to BoxedInt |
-| condition_decls.cpp:41:22:41:23 | IndirectMayWriteSideEffect: call to BoxedInt |
-| condition_decls.cpp:48:52:48:53 | IndirectMayWriteSideEffect: call to BoxedInt |
+| condition_decls.cpp:16:19:16:20 | Chi: call to BoxedInt |
+| condition_decls.cpp:26:23:26:24 | Chi: call to BoxedInt |
+| condition_decls.cpp:41:22:41:23 | Chi: call to BoxedInt |
+| condition_decls.cpp:48:52:48:53 | Chi: call to BoxedInt |
 | cpp17.cpp:15:11:15:21 | Convert: (void *)... |
 | misc.c:171:10:171:13 | Uninitialized: definition of str2 |
 | misc.c:219:47:219:48 | InitializeParameter: sp |
diff --git a/cpp/ql/test/library-tests/syntax-zoo/raw_sanity.expected b/cpp/ql/test/library-tests/syntax-zoo/raw_sanity.expected
index 2b3d6b07fc1..6912a5028b9 100644
--- a/cpp/ql/test/library-tests/syntax-zoo/raw_sanity.expected
+++ b/cpp/ql/test/library-tests/syntax-zoo/raw_sanity.expected
@@ -48,6 +48,7 @@ unexpectedOperand
 duplicateOperand
 missingPhiOperand
 missingOperandType
+duplicateChiOperand
 instructionWithoutSuccessor
 | VacuousDestructorCall.cpp:2:29:2:29 | InitializeParameter: y |
 | VacuousDestructorCall.cpp:3:3:3:3 | VariableAddress: x |
diff --git a/cpp/ql/test/library-tests/syntax-zoo/unaliased_ssa_sanity.expected b/cpp/ql/test/library-tests/syntax-zoo/unaliased_ssa_sanity.expected
index e984a30e3c5..eef63fe23f3 100644
--- a/cpp/ql/test/library-tests/syntax-zoo/unaliased_ssa_sanity.expected
+++ b/cpp/ql/test/library-tests/syntax-zoo/unaliased_ssa_sanity.expected
@@ -42,6 +42,7 @@ missingPhiOperand
 | range_analysis.c:389:3:389:32 | Phi: return ... | range_analysis.c:387:38:387:38 | Constant: 5 |
 | range_analysis.c:389:3:389:32 | Phi: return ... | range_analysis.c:387:38:387:38 | Constant: 5 |
 missingOperandType
+duplicateChiOperand
 instructionWithoutSuccessor
 | VacuousDestructorCall.cpp:2:29:2:29 | InitializeParameter: y |
 | assume0.cpp:7:2:7:2 | CallSideEffect: call to f |
diff --git a/csharp/ql/src/semmle/code/csharp/ir/implementation/raw/Instruction.qll b/csharp/ql/src/semmle/code/csharp/ir/implementation/raw/Instruction.qll
index acaf7569439..7b4dc602519 100644
--- a/csharp/ql/src/semmle/code/csharp/ir/implementation/raw/Instruction.qll
+++ b/csharp/ql/src/semmle/code/csharp/ir/implementation/raw/Instruction.qll
@@ -120,9 +120,7 @@ module InstructionSanity {
     )
   }
 
-  query predicate duplicateChiOperand(ChiInstruction chi) {
-    chi.getTotal() = chi.getPartial()
-  }
+  query predicate duplicateChiOperand(ChiInstruction chi) { chi.getTotal() = chi.getPartial() }
 
   /**
    * Holds if an instruction, other than `ExitFunction`, has no successors.
diff --git a/csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/Instruction.qll b/csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/Instruction.qll
index acaf7569439..7b4dc602519 100644
--- a/csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/Instruction.qll
+++ b/csharp/ql/src/semmle/code/csharp/ir/implementation/unaliased_ssa/Instruction.qll
@@ -120,9 +120,7 @@ module InstructionSanity {
     )
   }
 
-  query predicate duplicateChiOperand(ChiInstruction chi) {
-    chi.getTotal() = chi.getPartial()
-  }
+  query predicate duplicateChiOperand(ChiInstruction chi) { chi.getTotal() = chi.getPartial() }
 
   /**
    * Holds if an instruction, other than `ExitFunction`, has no successors.