[Bytecode] Avoid repeated hash lookups (NFC) (#108320)

2024-09-12 00:51:38 -07:00
parent 18b3949795
commit 85c97c1cec
1 changed files with 1 additions and 2 deletions
--- a/mlir/lib/Bytecode/Reader/BytecodeReader.cpp
+++ b/mlir/lib/Bytecode/Reader/BytecodeReader.cpp
@@ -2017,10 +2017,9 @@ LogicalResult BytecodeReader::Impl::sortUseListOrder(Value value) {
  DenseSet<unsigned> set;
  uint64_t accumulator = 0;
  for (const auto &elem : shuffle) {
-    if (set.contains(elem))
+    if (!set.insert(elem).second)
      return failure();
    accumulator += elem;
-    set.insert(elem);
  }
  if (numUses != shuffle.size() ||
      accumulator != (((numUses - 1) * numUses) >> 1))