[libcxx-commits] [clang] [libcxx] [clang] Add builtin to clear padding bytes (prework for P0528R3) (PR #75371)

[James Y Knight via libcxx-commits]

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@@ -970,6 +970,12 @@ def IsWithinLifetime : LangBuiltin<"CXX_LANG"> {
   let Prototype = "bool(void*)";
 }
 
+def ClearPadding : LangBuiltin<"CXX_LANG"> {
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jyknight wrote:

I think we should expose this in C mode as well. Did you have any particular implementation-reason to restrict to C++?

https://github.com/llvm/llvm-project/pull/75371