re PR target/54476 ([avr] __builtin_avr_delay_cycles (-1ul) causes memory usage…

re PR target/54476 ([avr] __builtin_avr_delay_cycles (-1ul) causes memory usage to explode on x86_64 host)

	PR target/54476
	* config/avr/avr.c (avr_expand_delay_cycles): Mask operand with
	SImode.

From-SVN: r190920

gcc/ChangeLog

+2012-09-04  Georg-Johann Lay  <avr@gjlay.de>
+
+	PR target/54476
+	* config/avr/avr.c (avr_expand_delay_cycles): Mask operand with
+	SImode.
+
 2012-09-04  Richard Guenther  <rguenther@suse.de>
 
 	PR tree-optimization/54458

gcc/config/avr/avr.c

@@ -10449,7 +10449,7 @@ avr_mem_clobber (void)
 static void
 avr_expand_delay_cycles (rtx operands0)
 {
-  unsigned HOST_WIDE_INT cycles = UINTVAL (operands0);
+  unsigned HOST_WIDE_INT cycles = UINTVAL (operands0) & GET_MODE_MASK (SImode);
   unsigned HOST_WIDE_INT cycles_used;
   unsigned HOST_WIDE_INT loop_count;