Forgot this bit, committed.
* config/rl78/vregs.h: Add G10 register definitions.
Index: config/rl78/vregs.h
===================================================================
--- config/rl78/vregs.h (revision 202637)
+++ config/rl78/vregs.h (working copy)
@@ -8,12 +8,35 @@ r_2 = 0xffefa
r_3 = 0xffefb
r_4 = 0xffefc
r_5 = 0xffefd
r_6 = 0xffefe
r_7 = 0xffeff
+#ifdef __RL78_G10__
+
+; clobberable
+r8 = 0xffec8
+r9 = 0xffec9
+r10 = 0xffeca
+r11 = 0xffecb
+r12 = 0xffecc
+r13 = 0xffecd
+r14 = 0xffece
+r15 = 0xffecf
+; preserved
+r16 = 0xffed0
+r17 = 0xffed1
+r18 = 0xffed2
+r19 = 0xffed3
+r20 = 0xffed4
+r21 = 0xffed5
+r22 = 0xffed6
+r23 = 0xffed7
+
+#else
+
; clobberable
r8 = 0xffef0
r9 = 0xffef1
r10 = 0xffef2
r11 = 0xffef3
r12 = 0xffef4
@@ -27,6 +50,7 @@ r18 = 0xffeea
r19 = 0xffeeb
r20 = 0xffeec
r21 = 0xffeed
r22 = 0xffeee
r23 = 0xffeef
+#endif
