[llvm] [PowerPC] Avoid repeated hash lookups (NFC) (PR #130390)

[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/130390.diff


1 Files Affected:

- (modified) llvm/lib/Target/PowerPC/PPCBoolRetToInt.cpp (+5-3) 


``````````diff
diff --git a/llvm/lib/Target/PowerPC/PPCBoolRetToInt.cpp b/llvm/lib/Target/PowerPC/PPCBoolRetToInt.cpp
index 0930206c0ae9b..a86da814f10e9 100644
--- a/llvm/lib/Target/PowerPC/PPCBoolRetToInt.cpp
+++ b/llvm/lib/Target/PowerPC/PPCBoolRetToInt.cpp
@@ -241,9 +241,11 @@ class PPCBoolRetToInt : public FunctionPass {
       ++NumBoolCallPromotion;
     ++NumBoolToIntPromotion;
 
-    for (Value *V : Defs)
-      if (!BoolToIntMap.count(V))
-        BoolToIntMap[V] = translate(V);
+    for (Value *V : Defs) {
+      auto [It, Inserted] = BoolToIntMap.try_emplace(V);
+      if (Inserted)
+        It->second = translate(V);
+    }
 
     // Replace the operands of the translated instructions. They were set to
     // zero in the translate function.

``````````

</details>


https://github.com/llvm/llvm-project/pull/130390