[PATCH] D134653: [clang][modules] Over-align the `Module` class

[Jan Svoboda via Phabricator via cfe-commits]

jansvoboda11 updated this revision to Diff 462965.
jansvoboda11 added a comment.

Document reason for `alignas`.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D134653/new/

https://reviews.llvm.org/D134653

Files:
  clang/include/clang/Basic/Module.h


Index: clang/include/clang/Basic/Module.h
===================================================================
--- clang/include/clang/Basic/Module.h
+++ clang/include/clang/Basic/Module.h
@@ -93,7 +93,9 @@
 };
 
 /// Describes a module or submodule.
-class Module {
+///
+/// Aligned to 8 bytes to allow for llvm::PointerIntPair<Module *, 3>.
+class alignas(8) Module {
 public:
   /// The name of this module.
   std::string Name;


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