[llvm] [Transforms] Avoid repeated hash lookups (NFC) (PR #125350)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-transforms

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/125350.diff


1 Files Affected:

- (modified) llvm/lib/Transforms/Scalar/NewGVN.cpp (+2-7) 


``````````diff
diff --git a/llvm/lib/Transforms/Scalar/NewGVN.cpp b/llvm/lib/Transforms/Scalar/NewGVN.cpp
index d8b0bd173454f4..168f1d689d3149 100644
--- a/llvm/lib/Transforms/Scalar/NewGVN.cpp
+++ b/llvm/lib/Transforms/Scalar/NewGVN.cpp
@@ -3056,13 +3056,8 @@ std::pair<unsigned, unsigned> NewGVN::assignDFSNumbers(BasicBlock *B,
 
 void NewGVN::updateProcessedCount(const Value *V) {
 #ifndef NDEBUG
-  if (ProcessedCount.count(V) == 0) {
-    ProcessedCount.insert({V, 1});
-  } else {
-    ++ProcessedCount[V];
-    assert(ProcessedCount[V] < 100 &&
-           "Seem to have processed the same Value a lot");
-  }
+  assert(++ProcessedCount[V] < 100 &&
+         "Seem to have processed the same Value a lot");
 #endif
 }
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/125350