[clang] [Clang][AArch64] Fixed incorrect _BitInt alignment (PR #90602)

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


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git-clang-format --diff 179e174945b6c0da462c534504720c9544aebf84 dfb8a9de874f233c9d3964569f3d5201fd717c16 -- clang/include/clang/Basic/TargetInfo.h clang/lib/AST/ASTContext.cpp clang/lib/Basic/Targets/AArch64.cpp clang/lib/Basic/Targets/AArch64.h clang/test/CodeGen/aapcs64-align.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/include/clang/Basic/TargetInfo.h b/clang/include/clang/Basic/TargetInfo.h
index 1b5efa488b..488b166a95 100644
--- a/clang/include/clang/Basic/TargetInfo.h
+++ b/clang/include/clang/Basic/TargetInfo.h
@@ -518,13 +518,15 @@ public:
   /// getInt128Align() - Returns the alignment of Int128.
   unsigned getInt128Align() const { return Int128Align; }
 
-  /// getBitIntAlign/Width - Return aligned size of '_BitInt' and 
+  /// getBitIntAlign/Width - Return aligned size of '_BitInt' and
   /// 'unsigned _BitInt' for this target, in bits.
   unsigned getBitIntWidth(unsigned NumBits) const {
-    return llvm::alignTo(NumBits, getBitIntAlign(NumBits));}
+    return llvm::alignTo(NumBits, getBitIntAlign(NumBits));
+  }
   virtual unsigned getBitIntAlign(unsigned NumBits) const {
-    return std::clamp<unsigned>(llvm::PowerOf2Ceil(NumBits), getCharWidth(), 
-                                getLongLongAlign());}
+    return std::clamp<unsigned>(llvm::PowerOf2Ceil(NumBits), getCharWidth(),
+                                getLongLongAlign());
+  }
 
   /// getShortAccumWidth/Align - Return the size of 'signed short _Accum' and
   /// 'unsigned short _Accum' for this target, in bits.
diff --git a/clang/lib/Basic/Targets/AArch64.cpp b/clang/lib/Basic/Targets/AArch64.cpp
index 9a6c197ff7..cc0ae0e285 100644
--- a/clang/lib/Basic/Targets/AArch64.cpp
+++ b/clang/lib/Basic/Targets/AArch64.cpp
@@ -1473,9 +1473,10 @@ bool AArch64TargetInfo::validatePointerAuthKey(
 
 bool AArch64TargetInfo::hasInt128Type() const { return true; }
 
-unsigned AArch64TargetInfo::getBitIntAlign(unsigned NumBits) const{
-        return std::clamp<unsigned>(llvm::PowerOf2Ceil(NumBits), getCharWidth(), 
-                                    getInt128Align());}
+unsigned AArch64TargetInfo::getBitIntAlign(unsigned NumBits) const {
+  return std::clamp<unsigned>(llvm::PowerOf2Ceil(NumBits), getCharWidth(),
+                              getInt128Align());
+}
 
 AArch64leTargetInfo::AArch64leTargetInfo(const llvm::Triple &Triple,
                                          const TargetOptions &Opts)
diff --git a/clang/lib/Basic/Targets/AArch64.h b/clang/lib/Basic/Targets/AArch64.h
index d8cdc814b2..be6435007a 100644
--- a/clang/lib/Basic/Targets/AArch64.h
+++ b/clang/lib/Basic/Targets/AArch64.h
@@ -204,7 +204,6 @@ public:
   bool validateTarget(DiagnosticsEngine &Diags) const override;
 
   unsigned getBitIntAlign(unsigned NumBits) const override;
- 
 };
 
 class LLVM_LIBRARY_VISIBILITY AArch64leTargetInfo : public AArch64TargetInfo {

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https://github.com/llvm/llvm-project/pull/90602