1 files changed, 13 insertions, 2 deletions
diff --git a/source/slang/slang-ir-peephole.cpp b/source/slang/slang-ir-peephole.cpp
index 66cde68de..21e17b546 100644
--- a/source/slang/slang-ir-peephole.cpp
+++ b/source/slang/slang-ir-peephole.cpp
@@ -241,16 +241,21 @@ struct PeepholeContext : InstPassBase
         }
     }
 
-    bool processModule()
+    bool processFunc(IRInst* func)
     {
         SharedIRBuilder* sharedBuilder = &sharedBuilderStorage;
         sharedBuilder->init(module);
         sharedBuilderStorage.deduplicateAndRebuildGlobalNumberingMap();
 
         changed = false;
-        processAllInsts([this](IRInst* inst) { processInst(inst); });
+        processChildInsts(func, [this](IRInst* inst) { processInst(inst); });
         return changed;
     }
+
+    bool processModule()
+    {
+        return processFunc(module->getModuleInst());
+    }
 };
 
 bool peepholeOptimize(IRModule* module)
@@ -259,4 +264,10 @@ bool peepholeOptimize(IRModule* module)
     return context.processModule();
 }
 
+bool peepholeOptimize(IRInst* func)
+{
+    PeepholeContext context = PeepholeContext(func->getModule());
+    return context.processFunc(func);
+}
+
 } // namespace Slang