re PR middle-end/56791 (Segmentation fault in stage2 gengenrtl -- Incorrect…

re PR middle-end/56791 (Segmentation fault in stage2 gengenrtl -- Incorrect instruction sequence generated by reload)

	PR middle-end/56791
	* config/pa/pa.c (pa_option_override): Disable auto increment and
	decrement instructions until reload is completed.

From-SVN: r202807

gcc/ChangeLog

 2013-09-20  John David Anglin  <danglin@gcc.gnu.org>
 
+	PR middle-end/56791
+	* config/pa/pa.c (pa_option_override): Disable auto increment and
+	decrement instructions until reload is completed.
+
 	* config/pa/pa-linux.h (TARGET_OS_CPP_BUILTINS): Define
 	__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1, __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2,
 	and __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4.

gcc/config/pa/pa.c

@@ -513,6 +513,12 @@ pa_option_override (void)
       write_symbols = NO_DEBUG;
     }
 
+#ifdef AUTO_INC_DEC
+  /* FIXME: Disable auto increment and decrement processing until reload
+     is completed.  See PR middle-end 56791.  */
+  flag_auto_inc_dec = reload_completed;
+#endif
+
   /* We only support the "big PIC" model now.  And we always generate PIC
      code when in 64bit mode.  */
   if (flag_pic == 1 || TARGET_64BIT)