[PATCH] D79052: [clang codegen] Fix alignment of "Address" for incomplete array pointer.

[Richard Smith - zygoloid via Phabricator via cfe-commits]

rsmith added inline comments.


================
Comment at: clang/lib/CodeGen/CodeGenFunction.cpp:176
   CharUnits Alignment;
-  if (T->isIncompleteType()) {
+  if (T->getBaseElementTypeUnsafe()->isIncompleteType()) {
     Alignment = CharUnits::One(); // Shouldn't be used, but pessimistic is best.
----------------
I don't know if it matters in practice, but this is still wrong. An incomplete type can have a known alignment, for a case like `struct alignas(32) S;`. Perhaps we should remove this test entirely and call `getTypeAlignIfKnown` instead of `getTypeAlign[InChars]` below.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D79052/new/

https://reviews.llvm.org/D79052