CodeGen: __uuidof should work even with an incomplete _GUID type
Summary:
We would crash in CodeGen::CodeGenModule::EmitUuidofInitializer
because our attempt to enter CodeGen::CodeGenModule::EmitConstantValue
will be foiled: the type of the constant value is incomplete.
Instead, create an unnamed type with the proper layout on all platforms.
Punt the problem of wrongly defined struct _GUID types to the user.
(It's impossible because the TU may never get to see the type and thus
we can't verify that it is suitable.)
This fixes PR16856.
Reviewers: rsmith, rnk, thakis
Reviewed By: rnk
CC: cfe-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D1375
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188481 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed