Increase the number of Cirrus scratch registers from 4 to 8 (ie half of them)

--- gcc-4.3.2/gcc/config/arm/arm.h.old	2008-09-26 16:01:45.000000000 +0100
+++ gcc-4.3.2/gcc/config/arm/arm.h	2008-09-28 11:20:19.000000000 +0100
@@ -626,8 +626,8 @@
 
 /*
   	mvf0		Cirrus floating point result
-	mvf1-mvf3	Cirrus floating point scratch
-	mvf4-mvf15   S	Cirrus floating point variable.  */
+	mvf1-mvf7	Cirrus floating point scratch
+	mvf8-mvf15   S	Cirrus floating point variable.  */
 
 /*	s0-s15		VFP scratch (aka d0-d7).
 	s16-s31	      S	VFP variable (aka d8-d15).
diff -urN gcc-4.3.0/gcc/config/arm/arm.h gcc-4.3.0/gcc/config/arm/arm.h
--- gcc-4.3.2/gcc/config/arm/arm.h	2008-04-07 12:17:46.000000000 +1000
+++ gcc-4.3.2/gcc/config/arm/arm.h	2008-04-07 12:18:10.000000000 +1000
@@ -753,7 +752,7 @@
 	       regno <= LAST_CIRRUS_FP_REGNUM; ++ regno)	\
 	    {							\
 	      fixed_regs[regno] = 0;				\
-	      call_used_regs[regno] = regno < FIRST_CIRRUS_FP_REGNUM + 4; \
+	      call_used_regs[regno] = regno < FIRST_CIRRUS_FP_REGNUM + 8; \
 	    }							\
 	}							\
       if (TARGET_VFP)						\