[Refactoring] Code reusage in spliceIntoBlock (#4174)

1 files changed, 1 insertions, 11 deletions

diff --git a/src/ir/ExpressionManipulator.cpp b/src/ir/ExpressionManipulator.cpp
index 535aa51c3..0bb94a66d 100644
--- a/src/ir/ExpressionManipulator.cpp
+++ b/src/ir/ExpressionManipulator.cpp
@@ -114,17 +114,7 @@ flexibleCopy(Expression* original, Module& wasm, CustomCopier custom) {
 
 // Splice an item into the middle of a block's list
 void spliceIntoBlock(Block* block, Index index, Expression* add) {
-  auto& list = block->list;
-  if (index == list.size()) {
-    list.push_back(add); // simple append
-  } else {
-    // we need to make room
-    list.push_back(nullptr);
-    for (Index i = list.size() - 1; i > index; i--) {
-      list[i] = list[i - 1];
-    }
-    list[index] = add;
-  }
+  block->list.insertAt(index, add);
   block->finalize(block->type);
 }