[clang] [clang] Add support for new loop attribute [[clang::code_align()]] (PR #70762)

[Aaron Ballman via cfe-commits]

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@@ -10026,6 +10026,10 @@ def err_duplicate_case_differing_expr : Error<
 def warn_case_empty_range : Warning<"empty case range specified">;
 def warn_missing_case_for_condition :
   Warning<"no case matching constant switch condition '%0'">;
+def err_loop_attr_duplication : Error<
+  "duplicate loop attribute %0">;
+def err_attribute_argument_not_power_of_two : Error<
+  "%0 attribute argument must be a constant power of two greater than zero">;
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AaronBallman wrote:

Should also tell the user the upper-bound, otherwise someone with a power of 2 greater than 4096 will be confused

https://github.com/llvm/llvm-project/pull/70762