[llvm] [AsmPrinter] Avoid repeated hash lookups (NFC) (PR #128630)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-debuginfo

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/128630.diff


1 Files Affected:

- (modified) llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp (+3-2) 


``````````diff
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index ddf0275ddfe6a..5bc30fede4720 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -1777,8 +1777,9 @@ DIE *DwarfCompileUnit::getOrCreateContextDIE(const DIScope *Context) {
 
     // Otherwise the context must be a DISubprogram.
     auto *SPScope = cast<DISubprogram>(Context);
-    if (getAbstractScopeDIEs().count(SPScope))
-      return getAbstractScopeDIEs()[SPScope];
+    const auto &DIEs = getAbstractScopeDIEs();
+    if (auto It = DIEs.find(SPScope); It != DIEs.end())
+      return It->second;
   }
   return DwarfUnit::getOrCreateContextDIE(Context);
 }

``````````

</details>


https://github.com/llvm/llvm-project/pull/128630