diff --git a/include/sirit/sirit.h b/include/sirit/sirit.h
index 3456110..7061621 100644
--- a/include/sirit/sirit.h
+++ b/include/sirit/sirit.h
@@ -204,11 +204,19 @@ class Module {
     Ref Load(Ref result_type, Ref pointer,
              std::optional<spv::MemoryAccessMask> memory_access = {});
 
+    /// Store through a pointer.
+    Ref Store(Ref pointer, Ref object,
+              std::optional<spv::MemoryAccessMask> memory_access = {});
+
     /// Create a pointer into a composite object that can be used with OpLoad
     /// and OpStore.
     Ref AccessChain(Ref result_type, Ref base,
                     const std::vector<Ref>& indexes = {});
 
+    /// Make a copy of a composite object, while modifying one part of it.
+    Ref CompositeInsert(Ref result_type, Ref object, Ref composite,
+                        const std::vector<Literal>& indexes = {});
+
     // Annotation
 
     /// Add a decoration to target.
diff --git a/src/insts/memory.cpp b/src/insts/memory.cpp
index bf0147d..de1373d 100644
--- a/src/insts/memory.cpp
+++ b/src/insts/memory.cpp
@@ -30,6 +30,17 @@ Ref Module::Load(Ref result_type, Ref pointer,
     return AddCode(op);
 }
 
+Ref Module::Store(Ref pointer, Ref object,
+                  std::optional<spv::MemoryAccessMask> memory_access) {
+    auto op{new Op(spv::Op::OpStore)};
+    op->Add(pointer);
+    op->Add(object);
+    if (memory_access) {
+        AddEnum(op, *memory_access);
+    }
+    return AddCode(op);
+}
+
 Ref Module::AccessChain(Ref result_type, Ref base,
                         const std::vector<Ref>& indexes) {
     assert(indexes.size() > 0);
@@ -39,4 +50,13 @@ Ref Module::AccessChain(Ref result_type, Ref base,
     return AddCode(op);
 }
 
+Ref Module::CompositeInsert(Ref result_type, Ref object, Ref composite,
+                            const std::vector<Literal>& indexes) {
+    auto op{new Op(spv::Op::OpCompositeInsert, bound++, result_type)};
+    op->Add(object);
+    op->Add(composite);
+    op->Add(indexes);
+    return AddCode(op);
+}
+
 } // namespace Sirit