Increase the number of vector registers available for allocation from
3 to 5.


git-svn-id: svn://svn.valgrind.org/vex/trunk@2881 8f6e269a-dfd6-0310-a8e1-e2731360e62c
diff --git a/priv/host_arm64_defs.h b/priv/host_arm64_defs.h
index 23be594..983e001 100644
--- a/priv/host_arm64_defs.h
+++ b/priv/host_arm64_defs.h
@@ -79,6 +79,8 @@
 extern HReg hregARM64_Q16 ( void );
 extern HReg hregARM64_Q17 ( void );
 extern HReg hregARM64_Q18 ( void );
+extern HReg hregARM64_Q19 ( void );
+extern HReg hregARM64_Q20 ( void );
 
 /* Number of registers used arg passing in function calls */
 #define ARM64_N_ARGREGS 8   /* x0 .. x7 */