Modified the unsupported instruction on Loongson3A. Closed #1 OpenBLAS could run on Loongson3A now.

common_mips64.h

@@ -1,3 +1,35 @@
+/*****************************************************************************
+Copyright (c) 2011, Lab of Parallel Software and Computational Science,ICSAS
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   1. Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+   2. Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in
+      the documentation and/or other materials provided with the
+      distribution.
+   3. Neither the name of the ISCAS nor the names of its contributors may 
+      be used to endorse or promote products derived from this software 
+      without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+**********************************************************************************/
+
 /*********************************************************************/
 /* Copyright 2009, 2010 The University of Texas at Austin.           */
 /* All rights reserved.                                              */
@@ -69,12 +101,16 @@ static void INLINE blas_lock(volatile unsigned long *address){
 
 static inline unsigned int rpcc(void){
   unsigned long ret;
-
+#if defined(LOONGSON3A)
+  unsigned long long tmp;
+  __asm__ __volatile__("dmfc0 %0, $25, 1": "=r"(tmp):: "memory");
+  ret=tmp;
+#else
   __asm__ __volatile__(".set   push    \n"                                     
           ".set   mips32r2\n"                                                  
           "rdhwr %0, $30  \n"                                                  
           ".set pop" : "=r"(ret) : : "memory");
-
+#endif
   return ret;
 }