1 files changed, 20 insertions, 0 deletions
diff --git a/source/slang/slang-ir.cpp b/source/slang/slang-ir.cpp
index 86586c2e8..c66f0d555 100644
--- a/source/slang/slang-ir.cpp
+++ b/source/slang/slang-ir.cpp
@@ -2741,6 +2741,17 @@ namespace Slang
             operands);
     }
 
+    IRDifferentialPairType* IRBuilder::getDifferentialPairType(
+        IRType* valueType,
+        IRWitnessTable* witnessTable)
+    {
+        IRInst* operands[] = { valueType, witnessTable };
+        return (IRDifferentialPairType*)getType(
+            kIROp_DifferentialPairType,
+            sizeof(operands) / sizeof(operands[0]),
+            operands);
+    }
+
     IRFuncType* IRBuilder::getFuncType(
         UInt            paramCount,
         IRType* const*  paramTypes,
@@ -3043,6 +3054,15 @@ namespace Slang
         return inst;
     }
 
+    IRInst* IRBuilder::emitMakeDifferentialPair(IRType* type, IRInst* primal, IRInst* differential)
+    {
+        IRInst* args[] = {primal, differential};
+        auto inst = createInstWithTrailingArgs<IRMakeDifferentialPair>(
+            this, kIROp_MakeDifferentialPair, type, 2, args);
+        addInst(inst);
+        return inst;
+    }
+
     IRInst* IRBuilder::emitSpecializeInst(
         IRType*         type,
         IRInst*         genericVal,