Applied the following trivial and obvious patch to the avr back.
Johann
libgcc/
* config/avr/lib1funcs.S (skip): Simplify.
diff --git a/libgcc/config/avr/lib1funcs.S b/libgcc/config/avr/lib1funcs.S
index 8ebdc01c88c..2ffa2090b25 100644
--- a/libgcc/config/avr/lib1funcs.S
+++ b/libgcc/config/avr/lib1funcs.S
@@ -169,11 +169,7 @@ see the files COPYING3 and COPYING.RUNTIME
respectively. If not, see
.endm
;; Skip next instruction, typically a jump target
-#if defined(__AVR_TINY__)
-#define skip cpse 0,0
-#else
#define skip cpse 16,16
-#endif
;; Negate a 2-byte value held in consecutive registers
.macro NEG2 reg