[llvm] [CallingConv] Return ArrayRef from AllocateRegBlock() (NFC) (PR #124120)

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github-actions[bot] wrote:

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:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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``````````bash
git-clang-format --diff ff0f1dd341cb2fdc1281a14413b3aa93bf9a20c7 9de5892d6c8ed41110882b8e3ba52b9b9359267e --extensions cpp,h -- llvm/include/llvm/CodeGen/CallingConvLower.h llvm/lib/Target/AArch64/AArch64CallingConvention.cpp llvm/lib/Target/ARM/ARMCallingConv.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Target/ARM/ARMCallingConv.cpp b/llvm/lib/Target/ARM/ARMCallingConv.cpp
index 2c429d7ea1..66a76a8c7a 100644
--- a/llvm/lib/Target/ARM/ARMCallingConv.cpp
+++ b/llvm/lib/Target/ARM/ARMCallingConv.cpp
@@ -228,7 +228,8 @@ static bool CC_ARM_AAPCS_Custom_Aggregate(unsigned ValNo, MVT ValVT,
     break;
   }
 
-  ArrayRef<MCPhysReg> RegResult = State.AllocateRegBlock(RegList, PendingMembers.size());
+  ArrayRef<MCPhysReg> RegResult =
+      State.AllocateRegBlock(RegList, PendingMembers.size());
   if (!RegResult.empty()) {
     for (const auto &[PendingMember, Reg] : zip(PendingMembers, RegResult)) {
       PendingMember.convertToReg(Reg);

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https://github.com/llvm/llvm-project/pull/124120