------- Additional Comments From fxcoudert at gcc dot gnu dot org 2005-06-14
10:55 -------
Well, my latest tests on alphaev67-linux
(http://gcc.gnu.org/ml/gcc-testresults/2005-06/msg00870.html) does not show any
improvement (most failures are due to this problem). What I don't understand is
why rth doesn't have this problem (from
http://gcc.gnu.org/ml/gcc-testresults/2005-06/msg00640.html, you can see that he
didn't have this problem even before the patch was committed).
I don't have much time to look at this now, but generated code looks OK:
$ cat a.f90.t02.original
MAIN__ ()
{
complex4 z;
complex4 c;
z = __complex__ (4.0e+0, 0.0);
c = csqrtf (z);
Even using this straight from C works OK with the system compiler:
$ cat a.c
#include <complex.h>
#include <math.h>
int main (void) {
complex z;
z = 4;
z = csqrtf(z);
printf ("%g\n",z);
return 0;
}
$ gcc a.c -lm && ./a.out
2
But it fails if you use the 4.1.0 compiler:
$ ./bin/gcc -static -lm a.c
a.c: In function 'main':
a.c:8: warning: incompatible implicit declaration of built-in function 'printf'
/tmp/cce9eolp.o: In function `main':
/tmp/cce9eolp.o(.text+0x50): undefined reference to `csqrtf'
collect2: ld returned 1 exit status
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21797
