[llvm-commits] [llvm-gcc-4.0] r43134 - in /llvm-gcc-4.0/trunk/gcc/config/rs6000: darwin-ldouble.c darwin-libgcc.10.4.ver darwin-libgcc.10.5.ver darwin.h

[Dale Johannesen]

On Oct 18, 2007, at 1:04 PM, Chris Lattner wrote:
>>    /* Use fused multiply-add to get low part of a * c.  */
>> -/* APPLE LOCAL begin LLVM */
>> -#ifndef __llvm__  /* FIXME: no long double support! */
>>    asm ("fmsub %0,%1,%2,%3" : "=f"(tau) : "f"(a), "f"(c), "f"(t));
>> -#endif
>
> Have you tested to see if long double works with inline asm?

No; there are no long double instructions, so I'm not sure how you
would write such a thing in inline asm.
(The asm in the fix above breaks the long double into two doubles
explicitly, and I'd expect that to be the common practice).