--- gcc/config/pdp11/pdp11.h	2018/04/24 18:21:49	1.1
+++ gcc/config/pdp11/pdp11.h	2018/04/24 18:29:22	1.1.1.2
@@ -1,5 +1,5 @@
 /* Definitions of target machine for GNU compiler, for the pdp-11
-   Copyright (C) 1994 Free Software Foundation, Inc.
+   Copyright (C) 1994, 1995 Free Software Foundation, Inc.
    Contributed by Michael K. Gschwind (mike@vlsivie.tuwien.ac.at).
 
 This file is part of GNU CC.
@@ -16,7 +16,8 @@ GNU General Public License for more deta
 
 You should have received a copy of the GNU General Public License
 along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
 
 
 /* declarations */
@@ -25,7 +26,7 @@ char *output_move_double();
 char *output_move_quad();
 char *output_block_move();
 
-/* check whther load_fpu_reg or not */
+/* check whether load_fpu_reg or not */
 #define LOAD_FPU_REG_P(x) ((x)>=8 && (x)<=11)
 #define NO_LOAD_FPU_REG_P(x) ((x)==12 || (x)==13)
 #define FPU_REG_P(x)	(LOAD_FPU_REG_P(x) || NO_LOAD_FPU_REG_P(x))
@@ -85,7 +86,7 @@ extern int target_flags;
     { "abshi", 128},		\
     { "no-abshi", -128},	\
 /* is branching expensive - on a PDP, it's actually really cheap */ \
-/* this is just to play aroound and check what code gcc generates */ \
+/* this is just to play around and check what code gcc generates */ \
     { "branch-expensive", 256}, \
     { "branch-cheap", -256},	\
 /* optimize for space instead of time - just in a couple of places */ \
@@ -170,7 +171,7 @@ extern int target_flags;
 /* Define this if most significant word of a multiword number is numbered.  */
 #define WORDS_BIG_ENDIAN 1
 
-/* number of bits in an addressible storage unit */
+/* number of bits in an addressable storage unit */
 #define BITS_PER_UNIT 8
 
 /* Width in bits of a "word", which is the contents of a machine register.
@@ -453,8 +454,8 @@ enum reg_class { NO_REGS, MUL_REGS, GENE
    operand as its first argument and the constraint letter as its
    second operand.
 
-   `Q'	is for memory refereces using take more than 1 instruction.
-   `R'	is for memory refereces which take 1 word for the instruction.  */
+   `Q'	is for memory references using take more than 1 instruction.
+   `R'	is for memory references which take 1 word for the instruction.  */
 
 #define EXTRA_CONSTRAINT(OP,CODE)					\
   ((GET_CODE (OP) != MEM) ? 0						\
@@ -524,10 +525,11 @@ extern int current_first_parm_offset;
 
 /* Value is 1 if returning from a function call automatically
    pops the arguments described by the number-of-args field in the call.
+   FUNDECL is the declaration node of the function (as a tree),
    FUNTYPE is the data type of the function (as a tree),
    or for a library call it is an identifier node for the subroutine name.  */
 
-#define RETURN_POPS_ARGS(FUNTYPE,SIZE) 0
+#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) 0
 
 /* Define how to find the value returned by a function.
    VALTYPE is the data type of the value (as a tree).
@@ -564,7 +566,7 @@ maybe ac0 ? - as option someday! */
 /* should probably return DImode and DFmode in memory,lest
    we fill up all regs!
 
- have to, else we crash - exceptio: maybe return result in 
+ have to, else we crash - exception: maybe return result in 
  ac0 if DFmode and FPU present - compatibility problem with
  libraries for non-floating point ...
 */
@@ -838,7 +840,7 @@ extern int current_function_pretend_args
 	&& REG_OK_FOR_BASE_P (XEXP (xfoob, 0)))				\
       goto ADDR;							\
 									\
-  /* anything else is illegal */					\
+  /* anything else is invalid */					\
   fail: ;								\
 }
 
@@ -1352,7 +1354,7 @@ JMP	FUNCTION	0x0058  0x0000 <- FUNCTION
     else if (GET_MODE(X) == SImode)					\
 	total = COSTS_N_INSNS(6);					\
     else								\
-	abort();							\
+	total = COSTS_N_INSNS(2);					\
     break;								\
   /* case LSHIFT: */		       					\
   case ASHIFT:								\
@@ -1363,7 +1365,8 @@ JMP	FUNCTION	0x0058  0x0000 <- FUNCTION
     else if (GET_MODE(X) ==  QImode)					\
     {									\
       if (GET_CODE(XEXP (X,1)) != CONST_INT)				\
-   	  abort();							\
+   	total = COSTS_N_INSNS(8); /* worst case */ 			\
+      else                                                              \
 	total = COSTS_N_INSNS(INTVAL(XEXP (X,1)));			\
     }									\
     else if (GET_MODE(X) == HImode)					\