================
Comment at: lib/Sema/SemaDecl.cpp:7694
@@ +7693,3 @@
+ FT->getResultType()->isNullPtrType())
+ FD->setHasImplicitReturnZero(true);
+
----------------
David Majnemer wrote:
> Reid Kleckner wrote:
> > MSVC doesn't do this for DllMain, which returns BOOL (typedefed to int =/).
> It does this on my machine.
>
> Like so:
> int DllMain() {}
>
> I get:
> DllMain PROC
>
> xor eax, eax
> ret 0
> DllMain ENDP
That behavior isn't very useful, though, because DllMain is supposed to return
TRUE on success and FALSE on failure. If a user tries to compile an empty
DllMain with clang, we won't warn them, and they'll get weird runtime failures
where LoadLibrary returns NULL. I'd rather have the warning than be compatible
on this fine codegen detail.
http://llvm-reviews.chandlerc.com/D1683
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