forked from OSchip/llvm-project
d6a150829b
This implements something like the current direction of DR1581: we use a narrow syntactic check to determine the set of places where a constant expression could be evaluated, and only instantiate a constexpr function or variable if it's referenced in one of those contexts, or is odr-used. It's not yet clear whether this is the right set of syntactic locations; we currently consider all contexts within templates that would result in odr-uses after instantiation, and contexts within list-initialization (narrowing conversions take another victim...), as requiring instantiation. We could in principle restrict the former cases more (only const integral / reference variable initializers, and contexts in which a constant expression is required, perhaps). However, this is sufficient to allow us to accept libstdc++ code, which relies on GCC's behavior (which appears to be somewhat similar to this approach). llvm-svn: 291318 |
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| .. | ||
| p1.cpp | ||
| p2.cpp | ||
| p3.cpp | ||
| p4.cpp | ||
| p5.cpp | ||
| p7.cpp | ||
| p8.cpp | ||
| p9-0x.cpp | ||
| p9.cpp | ||
| p10-0x.cpp | ||
| p10.cpp | ||
| p11-0x.cpp | ||
| p11.cpp | ||
| p12.cpp | ||
| p13.cpp | ||
| p15-cxx0x.cpp | ||
| p15.cpp | ||