------- Comment #25 from fxcoudert at gcc dot gnu dot org 2008-02-22 10:21
-------
Created an attachment (id=15206)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15206&action=view)
Complete patch
That patch builds fine on powerpc-apple-darwin9.2.0. The C compiler generated
seems OK:
$ cat s.c
#include <stdio.h>
int main (void)
{
long double x;
double y;
x = -0.24; y = x;
printf ("%g %g %g\n", (float) __builtin_asinl(x), (float) __builtin_asin(y),
(float) (__builtin_asinl(x) - __builtin_asin(y)));
}
$ ./bin/gcc s.c -mlong-double-64 && ./a.out
-0.242366 -0.242366 0
$ nm ./a.out | grep asinl
U _asinl
$ ./bin/gcc s.c -mlong-double-128 && ./a.out
-0.242366 -0.242366 -8.82009e-18
$ nm ./a.out | grep asinl
U _asinl$LDBL128
but the Fortran front-end apparently doesn't benefit from it:
$ cat s.f90
real(16) :: x
real(8) :: y
x = -0.24
y = x
print *, asin(x), asin(y), asin(x) - asin(y)
print *, real(asin(x)), real(asin(y)), real(asin(x) - asin(y))
end
$ ./bin/gfortran s.f90 && ./a.out
-0.24236584551303838594503263503820989 -0.24236584551303839
0.50000000000000000000000000000000000
-0.24236585 -0.24236585 0.50000000
$ nm a.out | grep asinl
U _asinl
Another issue is about -mmacosx-version-min. I'm not sure what should happen,
but I have the following:
$ ./bin/gcc s.c -mmacosx-version-min=10.2.8 && ./a.out
-0.242366 -0.242366 -8.82009e-18
$ nm a.out | grep asinl
U _asinl$LDBL128
If I understand correctly, this should give _asinl and not the $LDBL128
variant.
Any help appreciated.
--
fxcoudert at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #15203|0 |1
is obsolete| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25477
