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Remove test for SSE exception support that has been commented out since ages.

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24457 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar 2007-09-14 13:25:20 +00:00
parent 502368c206
commit 38349bcac8
1 changed files with 0 additions and 25 deletions
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25
cpudetect.c
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@ -441,31 +441,6 @@ static void check_os_katmai_support( void )
}
}
/* Emulate test for OSXMMEXCPT in CR4. The OS will set this bit if
* it supports unmasked SIMD FPU exceptions. If we unmask the
* exceptions, do a SIMD divide-by-zero and get a SIGILL, the OS
* doesn't support unmasked SIMD FPU exceptions. If we get a SIGFPE
* as expected, we're okay but we need to clean up after it.
*
* Are we being too stringent in our requirement that the OS support
* unmasked exceptions? Certain RedHat 2.2 kernels enable SSE by
* setting CR4.OSFXSR but don't support unmasked exceptions. Win98
* doesn't even support them. We at least know the user-space SSE
* support is good in kernels that do support unmasked exceptions,
* and therefore to be safe I'm going to leave this test in here.
*/
if ( gCpuCaps.hasSSE ) {
mp_msg(MSGT_CPUDETECT,MSGL_V, "Testing OS support for SSE unmasked exceptions... " );
// test_os_katmai_exception_support();
if ( gCpuCaps.hasSSE ) {
mp_msg(MSGT_CPUDETECT,MSGL_V, "yes.\n" );
} else {
mp_msg(MSGT_CPUDETECT,MSGL_V, "no!\n" );
}
}
/* Restore the original signal handlers.
*/
sigaction( SIGILL, &saved_sigill, NULL );