[llvm] [PowerPC] Avoid repeated hash lookups (NFC) (PR #132514)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-powerpc

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/132514.diff


1 Files Affected:

- (modified) llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp (+3-2) 


``````````diff
diff --git a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
index 358dffcd8dce8..ba6653e10bdc5 100644
--- a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -510,10 +510,11 @@ MCSymbol *PPCAsmPrinter::lookUpOrCreateTOCEntry(const MCSymbol *Sym,
                                                 TOCEntryType Type,
                                                 PPCMCExpr::Specifier Spec) {
   // If this is a new TOC entry add statistics about it.
-  if (!TOC.contains({Sym, Spec}))
+  auto [It, Inserted] = TOC.try_emplace({Sym, Spec});
+  if (Inserted)
     collectTOCStats(Type);
 
-  MCSymbol *&TOCEntry = TOC[{Sym, Spec}];
+  MCSymbol *&TOCEntry = It->second;
   if (!TOCEntry)
     TOCEntry = createTempSymbol("C");
   return TOCEntry;

``````````

</details>


https://github.com/llvm/llvm-project/pull/132514