remove most ifdef STACK_GROWS_DOWNWARD

gcc/c-family/ChangeLog:

2015-05-20  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* c-cppbuiltin.c (c_cpp_builtins): Use if instead of #if with
	STACK_GROWS_DOWNWARD.

gcc/ChangeLog:

2015-05-20  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* builtins.c, dwarf2cfi.c, explow.c, expr.c, recog.c,
	sched-deps.c: Use if instead of preprocessor checks with
	STACK_GROWS_DOWNWARD.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@223514 138bc75d-0d04-0410-961f-82ee72b054a4

9 files changed, 79 insertions, 87 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3fadbaf0e4c..ad68d6c0931 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,11 @@
 2015-05-20  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
 
+	* builtins.c, dwarf2cfi.c, explow.c, expr.c, recog.c,
+	sched-deps.c: Use if instead of preprocessor checks with
+	STACK_GROWS_DOWNWARD.
+
+2015-05-20  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
+
 	* *.c: Check the value of STACK_GROWS_DOWNWARD rather than if it
 	is defined.
 	* config/**/*.h: Define STACK_GROWS_DOWNWARD to an integer.
diff --git a/gcc/builtins.c b/gcc/builtins.c
index e81ab04ae7a..d92535eeb4d 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -1521,14 +1521,14 @@ expand_builtin_apply_args_1 (void)
 
   /* Save the arg pointer to the block.  */
   tem = copy_to_reg (crtl->args.internal_arg_pointer);
-#if STACK_GROWS_DOWNWARD
   /* We need the pointer as the caller actually passed them to us, not
      as we might have pretended they were passed.  Make sure it's a valid
      operand, as emit_move_insn isn't expected to handle a PLUS.  */
-  tem
-    = force_operand (plus_constant (Pmode, tem, crtl->args.pretend_args_size),
-		     NULL_RTX);
-#endif
+  if (STACK_GROWS_DOWNWARD)
+    tem
+      = force_operand (plus_constant (Pmode, tem,
+				      crtl->args.pretend_args_size),
+		       NULL_RTX);
   emit_move_insn (adjust_address (registers, Pmode, 0), tem);
 
   size = GET_MODE_SIZE (Pmode);
@@ -1613,10 +1613,9 @@ expand_builtin_apply (rtx function, rtx arguments, rtx argsize)
   /* Fetch the arg pointer from the ARGUMENTS block.  */
   incoming_args = gen_reg_rtx (Pmode);
   emit_move_insn (incoming_args, gen_rtx_MEM (Pmode, arguments));
-#if !STACK_GROWS_DOWNWARD
-  incoming_args = expand_simple_binop (Pmode, MINUS, incoming_args, argsize,
-				       incoming_args, 0, OPTAB_LIB_WIDEN);
-#endif
+  if (!STACK_GROWS_DOWNWARD)
+    incoming_args = expand_simple_binop (Pmode, MINUS, incoming_args, argsize,
+					 incoming_args, 0, OPTAB_LIB_WIDEN);
 
   /* Push a new argument block and copy the arguments.  Do not allow
      the (potential) memcpy call below to interfere with our stack
@@ -1646,12 +1645,13 @@ expand_builtin_apply (rtx function, rtx arguments, rtx argsize)
     crtl->need_drap = true;
 
   dest = virtual_outgoing_args_rtx;
-#if !STACK_GROWS_DOWNWARD
-  if (CONST_INT_P (argsize))
-    dest = plus_constant (Pmode, dest, -INTVAL (argsize));
-  else
-    dest = gen_rtx_PLUS (Pmode, dest, negate_rtx (Pmode, argsize));
-#endif
+  if (!STACK_GROWS_DOWNWARD)
+    {
+      if (CONST_INT_P (argsize))
+	dest = plus_constant (Pmode, dest, -INTVAL (argsize));
+      else
+	dest = gen_rtx_PLUS (Pmode, dest, negate_rtx (Pmode, argsize));
+    }
   dest = gen_rtx_MEM (BLKmode, dest);
   set_mem_align (dest, PARM_BOUNDARY);
   src = gen_rtx_MEM (BLKmode, incoming_args);
diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index 5408a12b24b..126301bf4cd 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,5 +1,10 @@
 2015-05-20  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
 
+	* c-cppbuiltin.c (c_cpp_builtins): Use if instead of #if with
+	STACK_GROWS_DOWNWARD.
+
+2015-05-20  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
+
 	* c-cppbuiltin.c (c_cpp_builtins): Check the value of
 	STACK_GROWS_DOWNWARD rather than if it is defined.
 
diff --git a/gcc/c-family/c-cppbuiltin.c b/gcc/c-family/c-cppbuiltin.c
index da9cb2f355c..4170154e590 100644
--- a/gcc/c-family/c-cppbuiltin.c
+++ b/gcc/c-family/c-cppbuiltin.c
@@ -1138,9 +1138,8 @@ c_cpp_builtins (cpp_reader *pfile)
 				     TRAMPOLINE_SIZE);
 
       /* For libgcc generic-morestack.c and unwinder code.  */
-#if STACK_GROWS_DOWNWARD
-      cpp_define (pfile, "__LIBGCC_STACK_GROWS_DOWNWARD__");
-#endif
+      if (STACK_GROWS_DOWNWARD)
+	cpp_define (pfile, "__LIBGCC_STACK_GROWS_DOWNWARD__");
 
       /* For libgcc unwinder code.  */
 #ifdef DONT_USE_BUILTIN_SETJMP
diff --git a/gcc/dwarf2cfi.c b/gcc/dwarf2cfi.c
index 8b8931f1d68..4b6929e4bc8 100644
--- a/gcc/dwarf2cfi.c
+++ b/gcc/dwarf2cfi.c
@@ -944,9 +944,9 @@ notice_args_size (rtx_insn *insn)
 
       /* Convert a change in args_size (always a positive in the
 	 direction of stack growth) to a change in stack pointer.  */
-#if !STACK_GROWS_DOWNWARD
-      delta = -delta;
-#endif
+      if (!STACK_GROWS_DOWNWARD)
+	delta = -delta;
+
       cur_cfa->offset += delta;
     }
 }
@@ -2347,9 +2347,9 @@ maybe_record_trace_start_abnormal (rtx_insn *start, rtx_insn *origin)
     {
       /* Convert a change in args_size (always a positive in the
 	 direction of stack growth) to a change in stack pointer.  */
-#if !STACK_GROWS_DOWNWARD
-      delta = -delta;
-#endif
+      if (!STACK_GROWS_DOWNWARD)
+	delta = -delta;
+
       cur_row->cfa.offset += delta;
     }
   
diff --git a/gcc/explow.c b/gcc/explow.c
index 39b63ed7e39..d1a2bf851fd 100644
--- a/gcc/explow.c
+++ b/gcc/explow.c
@@ -866,10 +866,9 @@ adjust_stack_1 (rtx adjust, bool anti_p)
   rtx temp;
   rtx_insn *insn;
 
-#if !STACK_GROWS_DOWNWARD
   /* Hereafter anti_p means subtract_p.  */
-  anti_p = !anti_p;
-#endif
+  if (!STACK_GROWS_DOWNWARD)
+    anti_p = !anti_p;
 
   temp = expand_binop (Pmode,
 		       anti_p ? sub_optab : add_optab,
@@ -1414,24 +1413,23 @@ allocate_dynamic_stack_space (rtx size, unsigned size_align,
     {
       int saved_stack_pointer_delta;
 
-#if !STACK_GROWS_DOWNWARD
-      emit_move_insn (target, virtual_stack_dynamic_rtx);
-#endif
+      if (!STACK_GROWS_DOWNWARD)
+	emit_move_insn (target, virtual_stack_dynamic_rtx);
 
       /* Check stack bounds if necessary.  */
       if (crtl->limit_stack)
 	{
 	  rtx available;
 	  rtx_code_label *space_available = gen_label_rtx ();
-#if STACK_GROWS_DOWNWARD
-	  available = expand_binop (Pmode, sub_optab,
-				    stack_pointer_rtx, stack_limit_rtx,
-				    NULL_RTX, 1, OPTAB_WIDEN);
-#else
-	  available = expand_binop (Pmode, sub_optab,
-				    stack_limit_rtx, stack_pointer_rtx,
-				    NULL_RTX, 1, OPTAB_WIDEN);
-#endif
+	  if (STACK_GROWS_DOWNWARD)
+	    available = expand_binop (Pmode, sub_optab,
+				      stack_pointer_rtx, stack_limit_rtx,
+				      NULL_RTX, 1, OPTAB_WIDEN);
+	  else
+	    available = expand_binop (Pmode, sub_optab,
+				      stack_limit_rtx, stack_pointer_rtx,
+				      NULL_RTX, 1, OPTAB_WIDEN);
+
 	  emit_cmp_and_jump_insns (available, size, GEU, NULL_RTX, Pmode, 1,
 				   space_available);
 #ifdef HAVE_trap
@@ -1456,9 +1454,8 @@ allocate_dynamic_stack_space (rtx size, unsigned size_align,
 	 crtl->preferred_stack_boundary alignment.  */
       stack_pointer_delta = saved_stack_pointer_delta;
 
-#if STACK_GROWS_DOWNWARD
-      emit_move_insn (target, virtual_stack_dynamic_rtx);
-#endif
+      if (STACK_GROWS_DOWNWARD)
+	emit_move_insn (target, virtual_stack_dynamic_rtx);
     }
 
   suppress_reg_args_size = false;
diff --git a/gcc/expr.c b/gcc/expr.c
index 3d691de6baa..09fc69473e2 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -869,11 +869,10 @@ move_by_pieces (rtx to, rtx from, unsigned HOST_WIDE_INT len,
       to_addr = NULL_RTX;
       data.to = NULL_RTX;
       data.autinc_to = 1;
-#if STACK_GROWS_DOWNWARD
-      data.reverse = 1;
-#else
-      data.reverse = 0;
-#endif
+      if (STACK_GROWS_DOWNWARD)
+	data.reverse = 1;
+      else
+	data.reverse = 0;
     }
   data.to_addr = to_addr;
   data.from = from;
@@ -4000,9 +3999,9 @@ fixup_args_size_notes (rtx_insn *prev, rtx_insn *last, int end_args_size)
 	saw_unknown = true;
 
       add_reg_note (insn, REG_ARGS_SIZE, GEN_INT (args_size));
-#if STACK_GROWS_DOWNWARD
-      this_delta = -(unsigned HOST_WIDE_INT) this_delta;
-#endif
+      if (STACK_GROWS_DOWNWARD)
+	this_delta = -(unsigned HOST_WIDE_INT) this_delta;
+
       args_size -= this_delta;
     }
 
@@ -4045,42 +4044,38 @@ emit_single_push_insn_1 (machine_mode mode, rtx x, tree type)
 
       emit_move_insn (stack_pointer_rtx,
 		      expand_binop (Pmode,
-#if STACK_GROWS_DOWNWARD
-				    sub_optab,
-#else
-				    add_optab,
-#endif
+				    STACK_GROWS_DOWNWARD ? sub_optab
+				    : add_optab,
 				    stack_pointer_rtx,
 				    gen_int_mode (rounded_size, Pmode),
 				    NULL_RTX, 0, OPTAB_LIB_WIDEN));
 
       offset = (HOST_WIDE_INT) padding_size;
-#if STACK_GROWS_DOWNWARD
-      if (STACK_PUSH_CODE == POST_DEC)
+      if (STACK_GROWS_DOWNWARD && STACK_PUSH_CODE == POST_DEC)
 	/* We have already decremented the stack pointer, so get the
 	   previous value.  */
 	offset += (HOST_WIDE_INT) rounded_size;
-#else
-      if (STACK_PUSH_CODE == POST_INC)
+
+      if (!STACK_GROWS_DOWNWARD && STACK_PUSH_CODE == POST_INC)
 	/* We have already incremented the stack pointer, so get the
 	   previous value.  */
 	offset -= (HOST_WIDE_INT) rounded_size;
-#endif
+
       dest_addr = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
 				gen_int_mode (offset, Pmode));
     }
   else
     {
-#if STACK_GROWS_DOWNWARD
-      /* ??? This seems wrong if STACK_PUSH_CODE == POST_DEC.  */
-      dest_addr = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
-				gen_int_mode (-(HOST_WIDE_INT) rounded_size,
-					      Pmode));
-#else
-      /* ??? This seems wrong if STACK_PUSH_CODE == POST_INC.  */
-      dest_addr = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
-				gen_int_mode (rounded_size, Pmode));
-#endif
+      if (STACK_GROWS_DOWNWARD)
+	/* ??? This seems wrong if STACK_PUSH_CODE == POST_DEC.  */
+	dest_addr = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
+				  gen_int_mode (-(HOST_WIDE_INT) rounded_size,
+						Pmode));
+      else
+	/* ??? This seems wrong if STACK_PUSH_CODE == POST_INC.  */
+	dest_addr = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
+				  gen_int_mode (rounded_size, Pmode));
+
       dest_addr = gen_rtx_PRE_MODIFY (Pmode, stack_pointer_rtx, dest_addr);
     }
 
@@ -4163,12 +4158,7 @@ emit_push_insn (rtx x, machine_mode mode, tree type, rtx size,
 		rtx alignment_pad)
 {
   rtx xinner;
-  enum direction stack_direction
-#if STACK_GROWS_DOWNWARD
-    = downward;
-#else
-    = upward;
-#endif
+  enum direction stack_direction = STACK_GROWS_DOWNWARD ? downward : upward;
 
   /* Decide where to pad the argument: `downward' for below,
      `upward' for above, or `none' for don't pad it.
diff --git a/gcc/recog.c b/gcc/recog.c
index 4a7aa67cf9a..524be673f02 100644
--- a/gcc/recog.c
+++ b/gcc/recog.c
@@ -1332,12 +1332,8 @@ push_operand (rtx op, machine_mode mode)
 	  || GET_CODE (XEXP (op, 1)) != PLUS
 	  || XEXP (XEXP (op, 1), 0) != XEXP (op, 0)
 	  || !CONST_INT_P (XEXP (XEXP (op, 1), 1))
-#if STACK_GROWS_DOWNWARD
-	  || INTVAL (XEXP (XEXP (op, 1), 1)) != - (int) rounded_size
-#else
-	  || INTVAL (XEXP (XEXP (op, 1), 1)) != (int) rounded_size
-#endif
-	  )
+	  || INTVAL (XEXP (XEXP (op, 1), 1))
+	     != ((STACK_GROWS_DOWNWARD ? -1 : 1) * (int) rounded_size))
 	return 0;
     }
 
diff --git a/gcc/sched-deps.c b/gcc/sched-deps.c
index 206da5a55f2..c1cfc1f3b70 100644
--- a/gcc/sched-deps.c
+++ b/gcc/sched-deps.c
@@ -4734,11 +4734,10 @@ parse_add_or_inc (struct mem_inc_info *mii, rtx_insn *insn, bool before_mem)
   if (regs_equal && REGNO (SET_DEST (pat)) == STACK_POINTER_REGNUM)
     {
       /* Note that the sign has already been reversed for !before_mem.  */
-#if STACK_GROWS_DOWNWARD
-      return mii->inc_constant > 0;
-#else
-      return mii->inc_constant < 0;
-#endif
+      if (STACK_GROWS_DOWNWARD)
+	return mii->inc_constant > 0;
+      else
+	return mii->inc_constant < 0;
     }
   return true;
 }