[llvm] ab95ed5 - [IPO] Avoid repeated hash lookups (NFC) (#107796)

[via llvm-commits]

Author: Kazu Hirata
Date: 2024-09-09T07:14:40-07:00
New Revision: ab95ed5ce0b099913eb5c9b03fef7f322c24acd2

URL: https://github.com/llvm/llvm-project/commit/ab95ed5ce0b099913eb5c9b03fef7f322c24acd2
DIFF: https://github.com/llvm/llvm-project/commit/ab95ed5ce0b099913eb5c9b03fef7f322c24acd2.diff

LOG: [IPO] Avoid repeated hash lookups (NFC) (#107796)

Added: 
    

Modified: 
    llvm/include/llvm/Transforms/IPO/ProfiledCallGraph.h

Removed: 
    


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diff  --git a/llvm/include/llvm/Transforms/IPO/ProfiledCallGraph.h b/llvm/include/llvm/Transforms/IPO/ProfiledCallGraph.h
index 8bf902fc8d2841..3e7cc74fcf23b6 100644
--- a/llvm/include/llvm/Transforms/IPO/ProfiledCallGraph.h
+++ b/llvm/include/llvm/Transforms/IPO/ProfiledCallGraph.h
@@ -156,10 +156,8 @@ class ProfiledCallGraph {
     ProfiledCallGraphEdge Edge(ProfiledFunctions[CallerName],
                                CalleeIt->second, Weight);
     auto &Edges = ProfiledFunctions[CallerName]->Edges;
-    auto EdgeIt = Edges.find(Edge);
-    if (EdgeIt == Edges.end()) {
-      Edges.insert(Edge);
-    } else {
+    auto [EdgeIt, Inserted] = Edges.insert(Edge);
+    if (!Inserted) {
       // Accumulate weight to the existing edge.
       Edge.Weight += EdgeIt->Weight;
       Edges.erase(EdgeIt);