__builtin_ia32_loadaps not available(?)

[Thomas Zimmermann <kuhundbaer@xxxxxx>]

Hi,

I have a question regarding SIMD built-ins.

The built-in '__builtin_ia32_loadaps' is mentioned in the GCC manual,
but seems unavailable. Code like

<quote>
int
main(int argc, char **argv)
{
  float  __attribute__((aligned(16))) f[4] = {1, 1, 1, 1};

  v4sf v;
  v = __builtin_ia32_loadaps(f);

  exit(EXIT_SUCCESS);
}
</quote>

results in an error message

<quote>
gcc -D_GNU_SOURCE=1 -Wall -march=core2 -m64 -mmmx -msse -msse2 -O2 -c -o
main.o main.c
main.c: In function âmainâ:
main.c:13: warning: implicit declaration of function
â__builtin_ia32_loadapsâ
main.c:13: error: incompatible types when assigning to type âv4sfâ from
type âintâ
make: *** [main.o] Fehler 1
</quote>

However, the same code with the built-in '__builtin_ia32_loadups'
works. 

I've seen this with GCC 4.4 and 4.6. What am I doing wrong?

Regards
Thomas

-- 
Thomas Zimmermann <kuhundbaer@xxxxxx>

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