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

[Will Hawkins via libcxx-commits]

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@@ -2698,6 +2700,326 @@ RValue CodeGenFunction::emitStdcFirstBit(const CallExpr *E, Intrinsic::ID IntID,
   return RValue::get(Result);
 }
 
+namespace {
+
+// PaddingClearer is a utility class that clears padding bits in a
+// c/c++ type. It traverses the type recursively, collecting occupied
+// bit intervals, and then compute the padding intervals.
----------------
hawkinsw wrote:

```suggestion
// bit intervals, and then computes the padding intervals.
```

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