[clang] [Headers][X86] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - allow PALIGNR byte shift intrinsics to be used in constexpr (PR #162005)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,c -- clang/lib/AST/ByteCode/InterpBuiltin.cpp clang/lib/AST/ExprConstant.cpp clang/test/CodeGen/X86/avx2-builtins.c clang/test/CodeGen/X86/avx512bw-builtins.c clang/test/CodeGen/X86/avx512vlbw-builtins.c clang/test/CodeGen/X86/mmx-builtins.c clang/test/CodeGen/X86/ssse3-builtins.c
``````````

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``````````diff
diff --git a/clang/lib/AST/ByteCode/InterpBuiltin.cpp b/clang/lib/AST/ByteCode/InterpBuiltin.cpp
index cb2ad24a7..1a51b6d3b 100644
--- a/clang/lib/AST/ByteCode/InterpBuiltin.cpp
+++ b/clang/lib/AST/ByteCode/InterpBuiltin.cpp
@@ -2975,7 +2975,6 @@ static bool interp__builtin_vec_set(InterpState &S, CodePtr OpPC,
   return true;
 }
 
-
 static bool interp__builtin_x86_psrldq_byteshift(InterpState &S, CodePtr OpPC,
                                                  const CallExpr *Call,
                                                  unsigned ID) {
@@ -2998,8 +2997,8 @@ static bool interp__builtin_x86_psrldq_byteshift(InterpState &S, CodePtr OpPC,
         Dst.elem<T>(I) = Concat.elem<T>(I + Shift);
       else
         Dst.elem<T>(I) = T();
-      }
-    });
+    }
+  });
 
   Dst.initializeAllElements();
 

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https://github.com/llvm/llvm-project/pull/162005