[llvm-commits] [llvm] r82778 - /llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp

[Sandeep Patel]

On Fri, Sep 25, 2009 at 8:22 PM, Eli Friedman <eli.friedman at gmail.com> wrote:
> On Fri, Sep 25, 2009 at 11:37 AM, Sandeep Patel <deeppatel1987 at gmail.com> wrote:
>> Why aren't the front-ends responsible for selecting the intrinsics again?
>
> Because there's no compelling reason to move it to the frontend... and
> there aren't corresponding intrinsics for some of the math functions.

Only the frontend knows that the function matches the proper signature
and was declared in the proper header file.

Doing matching by name like this in the backend is just bound to cause
trouble for freestanding and kernel folks (like me).

deep