[PATCH] D12169: Relax constexpr rules to improve __builtin_object_size's accuracy

[George Burgess IV via cfe-commits]

george.burgess.iv updated this revision to Diff 33104.
george.burgess.iv added a comment.

Talked with Richard, and we both agree that adding 4 EvaluationModes is too much for the use case. So, we decided to add a flag to LValue to denote that the LValueBase is invalid. This allows us to get by with just 2 new EvaluationModes, which is much more acceptable.

LValueBases can only be invalid if you're using one of the shiny new EvaluationModes.


http://reviews.llvm.org/D12169

Files:
  lib/AST/ExprConstant.cpp
  test/CodeGen/object-size.c

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