[Mlir-commits] [mlir] 0078d4b - [Pass] Avoid repeated hash lookups (NFC) (#107761)

[llvmlistbot at llvm.org]

Author: Kazu Hirata
Date: 2024-09-08T09:14:08-07:00
New Revision: 0078d4b5a467d2dd30b066740979d73483d56328

URL: https://github.com/llvm/llvm-project/commit/0078d4b5a467d2dd30b066740979d73483d56328
DIFF: https://github.com/llvm/llvm-project/commit/0078d4b5a467d2dd30b066740979d73483d56328.diff

LOG: [Pass] Avoid repeated hash lookups (NFC) (#107761)

Added: 
    

Modified: 
    mlir/lib/Pass/Pass.cpp

Removed: 
    


################################################################################
diff  --git a/mlir/lib/Pass/Pass.cpp b/mlir/lib/Pass/Pass.cpp
index 57a6c20141d2c1..deca03ae137f4e 100644
--- a/mlir/lib/Pass/Pass.cpp
+++ b/mlir/lib/Pass/Pass.cpp
@@ -938,11 +938,9 @@ AnalysisManager AnalysisManager::nestImmediate(Operation *op) {
   assert(impl->getOperation() == op->getParentOp() &&
          "expected immediate child operation");
 
-  auto it = impl->childAnalyses.find(op);
-  if (it == impl->childAnalyses.end())
-    it = impl->childAnalyses
-             .try_emplace(op, std::make_unique<NestedAnalysisMap>(op, impl))
-             .first;
+  auto [it, inserted] = impl->childAnalyses.try_emplace(op);
+  if (inserted)
+    it->second = std::make_unique<NestedAnalysisMap>(op, impl);
   return {it->second.get()};
 }