[clang] [Clang] Prevent null pointer dereference in target attribute mangling (PR #94228)

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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


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

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``````````bash
git-clang-format --diff bba5ee47e63298d61f6ea441a140144ce370ba92 5459e49d79f0916b198446fe9a0c06e7f24f7f7d -- clang/lib/CodeGen/CodeGenModule.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 7541817e41..b6c3ad06c6 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -1853,21 +1853,26 @@ static std::string getMangledNameImpl(CodeGenModule &CGM, GlobalDecl GD,
         break;
       case MultiVersionKind::Target: {
         auto *Attr = FD->getAttr<TargetAttr>();
-        assert(Attr && "Expected TargetAttr to be present for attribute mangling");
+        assert(Attr &&
+               "Expected TargetAttr to be present for attribute mangling");
         const ABIInfo &Info = CGM.getTargetCodeGenInfo().getABIInfo();
         Info.appendAttributeMangling(Attr, Out);
         break;
       }
       case MultiVersionKind::TargetVersion: {
         auto *Attr = FD->getAttr<TargetVersionAttr>();
-        assert(Attr && "Expected TargetVersionAttr to be present for attribute mangling");
+        assert(
+            Attr &&
+            "Expected TargetVersionAttr to be present for attribute mangling");
         const ABIInfo &Info = CGM.getTargetCodeGenInfo().getABIInfo();
         Info.appendAttributeMangling(Attr, Out);
         break;
       }
       case MultiVersionKind::TargetClones: {
         auto *Attr = FD->getAttr<TargetClonesAttr>();
-        assert(Attr && "Expected TargetClonesAttr to be present for attribute mangling");
+        assert(
+            Attr &&
+            "Expected TargetClonesAttr to be present for attribute mangling");
         unsigned Index = GD.getMultiVersionIndex();
         const ABIInfo &Info = CGM.getTargetCodeGenInfo().getABIInfo();
         Info.appendAttributeMangling(Attr, Index, Out);

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https://github.com/llvm/llvm-project/pull/94228