H. J. Lu wrote:
I was trying to load a full 128 bit constant into __float128 variable, but
with "L" suffix, I was able to load only XFmode constant. Is there a special
suffix for __float128 available in gcc?
No; since the x86-64 ABI is what defines the __float128 name, you could
ask the associated mailing list about a standard suffix to associate with
it.
Lack of standard for __float128 is always a problem. Suffix for
__float128 constant is one, scanf/printf specifier for __float128
is another. We also don't have a name for string to __float128
function.
While the __float128 scanf/printf specifier is part of library (and this
way, a custom library can provide these functions), the suffix for
constant should be covered by the compiler. Otherwise there is no
(clear) way to load the 128bit register with a 128bit constant value.
BTW: IA64 has the same issues with two FP types (long double XFmode and
"longer double" TFmode). How is this solved for IA64?
Uros.
