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--- gcc-3.4.6/gcc/loop.c 2013-05-19 20:09:27.000000000 +0200
+++ gcc/loop.c 2013-05-19 20:23:32.000000000 +0200
@@ -934,6 +934,10 @@
== INSN_UID (regs->array[regno].single_usage))
&& regs->array[regno].set_in_loop == 1
&& GET_CODE (SET_SRC (set)) != ASM_OPERANDS
+ && (regno >= FIRST_PSEUDO_REGISTER
+ || asm_noperands (PATTERN (regs->array[regno]
+ .single_usage))
+ < 0)
&& ! side_effects_p (SET_SRC (set))
&& ! find_reg_note (p, REG_RETVAL, NULL_RTX)
&& (! SMALL_REGISTER_CLASSES
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