------- Comment #16 from dominiq at lps dot ens dot fr 2007-03-17 00:22 -------
As far as I can tell the problem is fixed, at least for Mac OSX 10.3. Thanks
Richard for your
patience.
I have just noticed the following oddity with the code:
#include <math.h>
#include <stdio.h>
int main()
{
__complex__ double x;
__real__ x = -1.0;
__imag__ x = 0.0;
__complex__ double t = __builtin_clog(x);
double tmp = 0.5 * (__imag__ t);
printf("%g %g\n", cos(tmp), sin(tmp));
x = __builtin_cexpi(tmp);
printf("%g %g\n", (__real__ x), (__imag__ x));
x = __builtin_cexpi(tmp);
printf("%g %g\n", (__real__ x), (__imag__ x));
tmp = 0.5 * tmp;
x = __builtin_cexpi(tmp);
printf("%g %g\n", (__real__ x), (__imag__ x));
tmp = 0.0;
x = __builtin_cexpi(tmp);
printf("%g %g\n", (__real__ x), (__imag__ x));
}
leads to:
[karma] bug/cexp_pb% g++-4 -O1 failure_v6.c
failure_v6.c: In function 'int main()':
failure_v6.c:4: warning: canonical types differ for identical types double
__complex__ and double __complex__
<complex_type 0x9958c0
type <real_type 0x42e238c0 double sizes-gimplified DF
size <integer_cst 0x42e0a740 constant invariant 64>
unit size <integer_cst 0x42e0a760 constant invariant 8>
align 64 symtab 0 alias set -1 canonical type 0x42e238c0 precision 64
pointer_to_this <pointer_type 0x42e23a10>>
DC
size <integer_cst 0x42e0a860 type <integer_type 0x42e1d070 bit_size_type>
constant invariant 128>
unit size <integer_cst 0x42e0a880 type <integer_type 0x42e1d000 long
unsigned int> constant invariant 16>
align 64 symtab 0 alias set -1 canonical type 0x9958c0>
<complex_type 0x42e26000 complex double
type <real_type 0x42e238c0 double sizes-gimplified DF
size <integer_cst 0x42e0a740 constant invariant 64>
unit size <integer_cst 0x42e0a760 constant invariant 8>
align 64 symtab 0 alias set -1 canonical type 0x42e238c0 precision 64
pointer_to_this <pointer_type 0x42e23a10>>
sizes-gimplified DC
size <integer_cst 0x42e0a860 type <integer_type 0x42e1d070 bit_size_type>
constant invariant 128>
unit size <integer_cst 0x42e0a880 type <integer_type 0x42e1d000 long
unsigned int> constant invariant 16>
align 64 symtab 0 alias set -1 canonical type 0x42e26000>
failure_v6.c:4: warning: canonical types differ for identical types double
__complex__ and double __complex__
<complex_type 0x9958c0
type <real_type 0x42e238c0 double sizes-gimplified DF
size <integer_cst 0x42e0a740 constant invariant 64>
unit size <integer_cst 0x42e0a760 constant invariant 8>
align 64 symtab 0 alias set -1 canonical type 0x42e238c0 precision 64
pointer_to_this <pointer_type 0x42e23a10>>
DC
size <integer_cst 0x42e0a860 type <integer_type 0x42e1d070 bit_size_type>
constant invariant 128>
unit size <integer_cst 0x42e0a880 type <integer_type 0x42e1d000 long
unsigned int> constant invariant 16>
align 64 symtab 0 alias set -1 canonical type 0x9958c0>
<complex_type 0x42e26000 complex double
type <real_type 0x42e238c0 double sizes-gimplified DF
size <integer_cst 0x42e0a740 constant invariant 64>
unit size <integer_cst 0x42e0a760 constant invariant 8>
align 64 symtab 0 alias set -1 canonical type 0x42e238c0 precision 64
pointer_to_this <pointer_type 0x42e23a10>>
sizes-gimplified DC
size <integer_cst 0x42e0a860 type <integer_type 0x42e1d070 bit_size_type>
constant invariant 128>
unit size <integer_cst 0x42e0a880 type <integer_type 0x42e1d000 long
unsigned int> constant invariant 16>
align 64 symtab 0 alias set -1 canonical type 0x42e26000>
without -O1, I don't get the warnings, nor with similar codes (as the ones in
comments), nor
with gcc. The executable works as expected. Any idea?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31161
