[PATCH] D137107: Allow MS extension: support of constexpr with __declspec(dllimport).

[Zahira Ammarguellat via Phabricator via cfe-commits]

zahiraam marked 3 inline comments as done.
zahiraam added inline comments.


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Comment at: clang/lib/CodeGen/CodeGenModule.cpp:5006
+    if (NeedsGlobalCtor || NeedsGlobalDtor)
+      DelayedCXXInitPosition[D] = ~0U;
+  } else {
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efriedma wrote:
> zahiraam wrote:
> > Do you agree this should be done only when one of those flags is on?
> Yes, that's fine; I wasn't really paying close attention to the exact code.  Just wanted to make the point about the structure of the if statements, and code was the easiest way to explain it.
> 
> Maybe the outer if statement should actually be `if (isStaticInit(D, getLangOpts()) && NeedsGlobalCtor) {`.
> 
> On a related note, we might want to avoid the name "ctor", in case that accidentally conflicts with some user code; an "__"-prefixed name would be appropriate.
>> Maybe the outer if statement should actually be if (isStaticInit(D, getLangOpts()) && NeedsGlobalCtor) {
Not sure about that! There are cases where (isStaticInit(D, getLangOpts())) = true and NeedsGlobalCtor=false, but NeedsGlobalDtor=true. In which case a __dtor needs to be emitted, no?

Writing the condition as you are proposing would actually not get me into the body to emit the __dtor. Is that what we want?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D137107/new/

https://reviews.llvm.org/D137107