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

[Anton Korobeynikov]

Joe,

> I believe the important case is printf("%f"), so going one layer deep
> should be sufficient. However, I'm not enough of a Windows expert to
> know if it's technically necessary in deeper case.
Well... Do you have vcpp in hand? You can check in which conditions
call to fltused is emitted.
Typical cases:
 1. Ordinary floating point operand
 2. float*
 3. struct { float }
 4. struct { float } *

-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University