[LLVMbugs] [Bug 22826] constexpr and CUDA

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=22826

Richard Smith <richard-llvm at metafoo.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |richard-llvm at metafoo.co.uk
         Resolution|---                         |INVALID

--- Comment #1 from Richard Smith <richard-llvm at metafoo.co.uk> ---
That's not true. A `constexpr` function call is not required to be evaluated
during compilation in most cases, and *cannot* be evaluated during compilation
in some cases. For instance:

  __device__ constexpr int f(int n) { return n * 2; }
  __host__ int g(int n) { return f(n); }

Here, 'g' will call 'f' at runtime.

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