Update common_arm64.h

Author: mayeut

common_arm64.h

@@ -13,9 +13,9 @@ modification, are permitted provided that the following conditions are
       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 OpenBLAS project nor the names of 
-      its contributors may be used to endorse or promote products 
-      derived from this software without specific prior written 
+   3. Neither the name of the OpenBLAS project 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"
@@ -114,17 +114,17 @@ static __inline BLASULONG rpcc(void){
   #else
   BLASULONG ret = 0;
   blasint shift;
- 
-  __asm__ __volatile__ ("isb; mrs %0,cntvct_el0":"=r"(ret));
-  __asm__ __volatile__ ("mrs %0,cntfrq_el0; clz %w0, %w0":"=&r"(shift));
+
+  __asm__ __volatile__ ("isb\n\tmrs %0,cntvct_el0":"=r"(ret));
+  __asm__ __volatile__ ("mrs %x0,cntfrq_el0\n\tclz %w0, %w0":"=&r"(shift));
 
   return ret << shift;
   #endif
 }
 
 #define RPCC_DEFINED
 #define RPCC64BIT
-#endif 
+#endif
 
 static inline int blas_quickdivide(blasint x, blasint y){
   return x / y;
@@ -149,7 +149,7 @@ static inline int blas_quickdivide(blasint x, blasint y){
 
 #if defined(ASSEMBLER) && !defined(NEEDPARAM)
 
-.macro PROLOGUE 
+.macro PROLOGUE
 	.text ;
 	.p2align 2 ;
 	.global	REALNAME ;