[llvm] LoopRotationUtils: Use initializer list instead of repeated push_back (PR #139312)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-transforms

Author: Matt Arsenault (arsenm)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/139312.diff


1 Files Affected:

- (modified) llvm/lib/Transforms/Utils/LoopRotationUtils.cpp (+4-4) 


``````````diff
diff --git a/llvm/lib/Transforms/Utils/LoopRotationUtils.cpp b/llvm/lib/Transforms/Utils/LoopRotationUtils.cpp
index 73d074029d810..693b1f517f8d0 100644
--- a/llvm/lib/Transforms/Utils/LoopRotationUtils.cpp
+++ b/llvm/lib/Transforms/Utils/LoopRotationUtils.cpp
@@ -822,10 +822,10 @@ bool LoopRotate::rotateLoop(Loop *L, bool SimplifiedLatch) {
     if (DT) {
       // The OrigPreheader branches to the NewHeader and Exit now. Then, inform
       // the DT about the removed edge to the OrigHeader (that got removed).
-      SmallVector<DominatorTree::UpdateType, 3> Updates;
-      Updates.push_back({DominatorTree::Insert, OrigPreheader, Exit});
-      Updates.push_back({DominatorTree::Insert, OrigPreheader, NewHeader});
-      Updates.push_back({DominatorTree::Delete, OrigPreheader, OrigHeader});
+      SmallVector<DominatorTree::UpdateType, 3> Updates = {
+          {DominatorTree::Insert, OrigPreheader, Exit},
+          {DominatorTree::Insert, OrigPreheader, NewHeader},
+          {DominatorTree::Delete, OrigPreheader, OrigHeader}};
 
       if (MSSAU) {
         MSSAU->applyUpdates(Updates, *DT, /*UpdateDT=*/true);

``````````

</details>


https://github.com/llvm/llvm-project/pull/139312