[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/build/uClibc/libm/i386/fclrexcpt.c b/ap/build/uClibc/libm/i386/fclrexcpt.c
new file mode 100644
index 0000000..a34060c
--- /dev/null
+++ b/ap/build/uClibc/libm/i386/fclrexcpt.c
@@ -0,0 +1,61 @@
+/* Clear given exceptions in current floating-point environment.
+ Copyright (C) 1997,99,2000, 2001, 2003, 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <fenv.h>
+#include <unistd.h>
+
+int
+feclearexcept (int excepts)
+{
+ fenv_t temp;
+
+ /* Mask out unsupported bits/exceptions. */
+ excepts &= FE_ALL_EXCEPT;
+
+ /* Bah, we have to clear selected exceptions. Since there is no
+ `fldsw' instruction we have to do it the hard way. */
+ __asm__ ("fnstenv %0" : "=m" (*&temp));
+
+ /* Clear the relevant bits. */
+ temp.__status_word &= excepts ^ FE_ALL_EXCEPT;
+
+ /* Put the new data in effect. */
+ __asm__ ("fldenv %0" : : "m" (*&temp));
+
+#if 0
+ /* If the CPU supports SSE, we clear the MXCSR as well. */
+ if ((GLRO(dl_hwcap) & HWCAP_I386_XMM) != 0)
+ {
+ unsigned int xnew_exc;
+
+ /* Get the current MXCSR. */
+ __asm__ ("stmxcsr %0" : "=m" (*&xnew_exc));
+
+ /* Clear the relevant bits. */
+ xnew_exc &= ~excepts;
+
+ /* Put the new data in effect. */
+ __asm__ ("ldmxcsr %0" : : "m" (*&xnew_exc));
+ }
+#endif
+
+ /* Success. */
+ return 0;
+}