File gcc-patch-bug19636-24894-31644-31786.diff of Package wrightflyer

Fix for GCC bugs:
#19636
#24894
#31644
#31786

Index: avr.c
===================================================================
--- gcc/config/avr/avr.c	(revision 132380)
+++ gcc/config/avr/avr.c	(working copy)
@@ -976,6 +976,8 @@
 		 true_regnum (XEXP (x, 0)));
       debug_rtx (x);
     }
+  if (!strict && GET_CODE (x) == SUBREG)
+	x = SUBREG_REG (x);		   
   if (REG_P (x) && (strict ? REG_OK_FOR_BASE_STRICT_P (x)
                     : REG_OK_FOR_BASE_NOSTRICT_P (x)))
     r = POINTER_REGS;
@@ -990,6 +992,7 @@
       if (fit)
 	{
 	  if (! strict
+	      || REGNO (XEXP (x,0)) == REG_X
 	      || REGNO (XEXP (x,0)) == REG_Y
 	      || REGNO (XEXP (x,0)) == REG_Z)
 	    r = BASE_POINTER_REGS;
Index: avr.h
===================================================================
--- gcc/config/avr/avr.h	(revision 132380)
+++ gcc/config/avr/avr.h	(working copy)
@@ -483,10 +483,6 @@
 		           OPNUM, TYPE);				    \
 	      goto WIN;							    \
 	    }								    \
-	  push_reload (XEXP (X, 0), NULL_RTX, &XEXP (X, 0), NULL,	    \
-		       BASE_POINTER_REGS, GET_MODE (X), VOIDmode, 0, 0,	    \
-		       OPNUM, TYPE);					    \
-          goto WIN;							    \
 	}								    \
       else if (! (frame_pointer_needed && XEXP (X,0) == frame_pointer_rtx)) \
 	{								    \