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Index: avr.md
===================================================================
--- gcc/config/avr/avr.md (revision 132947)
+++ gcc/config/avr/avr.md (working copy)
@@ -585,13 +585,13 @@
adc %B0,__zero_reg__"
[(set_attr "length" "2")
(set_attr "cc" "set_n")])
-
+;disable this as reload has problems with it.
(define_insn "*addhi3_zero_extend2"
[(set (match_operand:HI 0 "register_operand" "=r")
(plus:HI
(zero_extend:HI (match_operand:QI 1 "register_operand" "%0"))
(zero_extend:HI (match_operand:QI 2 "register_operand" "r"))))]
- ""
+ "0"
"add %0,%2
mov %B0,__zero_reg__
adc %B0,__zero_reg__"
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