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/* Test case to check if Multiversioning works. */
/* { dg-do run } */
/* { dg-require-ifunc "" } */
/* { dg-options "-O2 -fPIC -fcompare-debug=-Wsign-compare" } */
#include <assert.h>
/* Default version. */
int foo (); // Extra declaration that is merged with the second one.
int foo () __attribute__ ((target("default")));
/* The other versions of foo. Mix up the ordering and
check if the dispatching does it in the order of priority. */
/* Check combination of target attributes. */
int foo () __attribute__ ((target("arch=corei7,popcnt")));
/* The target operands in this declaration and the definition are re-ordered.
This should still work. */
int foo () __attribute__ ((target("ssse3,avx2")));
/* Check for all target attributes for which dispatchers are available. */
/* Check arch= */
int foo () __attribute__((target("arch=core2")));
int foo () __attribute__((target("arch=corei7")));
int foo () __attribute__((target("arch=atom")));
/* Check ISAs */
int foo () __attribute__((target("avx")));
int foo () __attribute__ ((target("arch=core2,sse4.2")));
/* Check more arch=. */
int foo () __attribute__((target("arch=amdfam10")));
int foo () __attribute__((target("arch=bdver1")));
int foo () __attribute__((target("arch=bdver2")));
int (*p)() = &foo;
int main ()
{
int val = foo ();
assert (val == (*p)());
/* Check in the exact same order in which the dispatching
is expected to happen. */
if (__builtin_cpu_is ("bdver1"))
assert (val == 1);
else if (__builtin_cpu_is ("bdver2"))
assert (val == 2);
else if (__builtin_cpu_supports ("avx2")
&& __builtin_cpu_supports ("ssse3"))
assert (val == 3);
else if (__builtin_cpu_supports ("avx"))
assert (val == 4);
else if (__builtin_cpu_is ("corei7")
&& __builtin_cpu_supports ("popcnt"))
assert (val == 5);
else if (__builtin_cpu_is ("corei7"))
assert (val == 6);
else if (__builtin_cpu_is ("amdfam10h"))
assert (val == 7);
else if (__builtin_cpu_is ("core2")
&& __builtin_cpu_supports ("sse4.2"))
assert (val == 8);
else if (__builtin_cpu_is ("core2"))
assert (val == 9);
else if (__builtin_cpu_is ("atom"))
assert (val == 10);
else
assert (val == 0);
return 0;
}
int __attribute__ ((target("default")))
foo ()
{
return 0;
}
int __attribute__ ((target("arch=corei7,popcnt")))
foo ()
{
return 5;
}
int __attribute__ ((target("avx2,ssse3")))
foo ()
{
return 3;
}
int __attribute__ ((target("arch=core2")))
foo ()
{
return 9;
}
int __attribute__ ((target("arch=corei7")))
foo ()
{
return 6;
}
int __attribute__ ((target("arch=atom")))
foo ()
{
return 10;
}
int __attribute__ ((target("avx")))
foo ()
{
return 4;
}
int __attribute__ ((target("arch=core2,sse4.2")))
foo ()
{
return 8;
}
int __attribute__ ((target("arch=amdfam10")))
foo ()
{
return 7;
}
int __attribute__ ((target("arch=bdver1")))
foo ()
{
return 1;
}
int __attribute__ ((target("arch=bdver2")))
foo ()
{
return 2;
}
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