[llvm] [llvm-profdata] Avoid repeated hash lookups (NFC) (PR #111629)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-pgo

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/111629.diff


1 Files Affected:

- (modified) llvm/tools/llvm-profdata/llvm-profdata.cpp (+3-5) 


``````````diff
diff --git a/llvm/tools/llvm-profdata/llvm-profdata.cpp b/llvm/tools/llvm-profdata/llvm-profdata.cpp
index 8a36726769f221..17933e4500ead6 100644
--- a/llvm/tools/llvm-profdata/llvm-profdata.cpp
+++ b/llvm/tools/llvm-profdata/llvm-profdata.cpp
@@ -1220,11 +1220,9 @@ adjustInstrProfile(std::unique_ptr<WriterContext> &WC,
       }
     }
 
-    if (!StaticFuncMap.contains(NewName)) {
-      StaticFuncMap[NewName] = Name;
-    } else {
-      StaticFuncMap[NewName] = DuplicateNameStr;
-    }
+    auto [It, Inserted] = StaticFuncMap.try_emplace(NewName, Name);
+    if (!Inserted)
+      It->second = DuplicateNameStr;
   };
 
   // We need to flatten the SampleFDO profile as the InstrFDO

``````````

</details>


https://github.com/llvm/llvm-project/pull/111629