1 files changed, 18 insertions, 18 deletions
diff --git a/source/slang/slang-emit.cpp b/source/slang/slang-emit.cpp
index 3ec03d0e7..11e0812d9 100644
--- a/source/slang/slang-emit.cpp
+++ b/source/slang/slang-emit.cpp
@@ -212,22 +212,6 @@ Result linkAndOptimizeIR(
     // un-specialized IR.
     dumpIRIfEnabled(codeGenContext, irModule);
 
-    switch (target)
-    {
-        case CodeGenTarget::CPPSource:
-        case CodeGenTarget::HostCPPSource:
-        {
-            lowerComInterfaces(irModule, artifactDesc.style, sink);
-            generateDllImportFuncs(codeGenContext->getTargetReq(), irModule, sink);
-            generateDllExportFuncs(irModule, sink);
-            break;
-        }
-        default: break;
-    }
-
-    // Lower `Result<T,E>` types into ordinary struct types.
-    lowerResultType(irModule, sink);
-
     // Replace any global constants with their values.
     //
     replaceGlobalConstants(irModule);
@@ -323,6 +307,24 @@ Result linkAndOptimizeIR(
         break;
     }
 
+    lowerOptionalType(irModule, sink);
+    simplifyIR(irModule);
+
+    switch (target)
+    {
+    case CodeGenTarget::CPPSource:
+    case CodeGenTarget::HostCPPSource:
+    {
+        lowerComInterfaces(irModule, artifactDesc.style, sink);
+        generateDllImportFuncs(codeGenContext->getTargetReq(), irModule, sink);
+        generateDllExportFuncs(irModule, sink);
+        break;
+    }
+    default: break;
+    }
+
+    // Lower `Result<T,E>` types into ordinary struct types.
+    lowerResultType(irModule, sink);
 
     // Desguar any union types, since these will be illegal on
     // various targets.
@@ -393,8 +395,6 @@ Result linkAndOptimizeIR(
     //
     simplifyIR(irModule);
 
-    lowerOptionalType(irModule, sink);
-
 #if 0
     dumpIRIfEnabled(codeGenContext, irModule, "AFTER DCE");
 #endif