[clang] [CodeGen] Avoid repeated hash lookups (NFC) (PR #126672)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-codegen

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/126672.diff


1 Files Affected:

- (modified) clang/lib/CodeGen/CGOpenMPRuntime.cpp (+5-6) 


``````````diff
diff --git a/clang/lib/CodeGen/CGOpenMPRuntime.cpp b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
index cafaaa364cb763..b679d63874b3bb 100644
--- a/clang/lib/CodeGen/CGOpenMPRuntime.cpp
+++ b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
@@ -1457,14 +1457,13 @@ void CGOpenMPRuntime::functionFinished(CodeGenFunction &CGF) {
     clearLocThreadIdInsertPt(CGF);
     OpenMPLocThreadIDMap.erase(CGF.CurFn);
   }
-  if (FunctionUDRMap.count(CGF.CurFn) > 0) {
-    for(const auto *D : FunctionUDRMap[CGF.CurFn])
+  if (auto I = FunctionUDRMap.find(CGF.CurFn); I != FunctionUDRMap.end()) {
+    for (const auto *D : I->second)
       UDRMap.erase(D);
-    FunctionUDRMap.erase(CGF.CurFn);
+    FunctionUDRMap.erase(I);
   }
-  auto I = FunctionUDMMap.find(CGF.CurFn);
-  if (I != FunctionUDMMap.end()) {
-    for(const auto *D : I->second)
+  if (auto I = FunctionUDMMap.find(CGF.CurFn); I != FunctionUDMMap.end()) {
+    for (const auto *D : I->second)
       UDMMap.erase(D);
     FunctionUDMMap.erase(I);
   }

``````````

</details>


https://github.com/llvm/llvm-project/pull/126672