[llvm-commits] Patch for pr11798: Emit _fltused during FastISel

[Joe Groff]

I posted this patch a month ago, and I wanted to make sure it got
looked at. The Visual Studio linker links floating-point support
conditionally based on the presence of a magic symbol `_fltused`
emitted by the Microsoft C++ compiler. LLVM already properly emits
this symbol for win32 targets during normal instruction selection, but
not during fastisel. This patch makes it so that `_fltused` is also
emitted properly during fastisel. Let me know if there are any changes
necessary. Thanks.

-Joe
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