diff --git a/gcc/haifa-sched.cc b/gcc/haifa-sched.cc
index 01a2a80d9825195caf4980a1dbc39963e7fa1fb7..8e8add709b3a79401ef94271127f6095c33b4644 100644
--- a/gcc/haifa-sched.cc
+++ b/gcc/haifa-sched.cc
@@ -6624,7 +6624,7 @@ schedule_block (basic_block *target_bb, state_t init_state)
   advance = 0;
 
   gcc_assert (scheduled_insns.length () == 0);
-  sort_p = TRUE;
+  sort_p = true;
   must_backtrack = false;
   modulo_insns_scheduled = 0;
 
@@ -6844,7 +6844,7 @@ schedule_block (basic_block *target_bb, state_t init_state)
               break;
 	    }
 
-	  sort_p = TRUE;
+	  sort_p = true;
 
 	  if (current_sched_info->can_schedule_ready_p
 	      && ! (*current_sched_info->can_schedule_ready_p) (insn))
diff --git a/gcc/ira.cc b/gcc/ira.cc
index a1860105c60b57c67d13adb27ff3ed397f4d30e6..4a6fb357ba03824597336830a462f2bf3d7e9fa8 100644
--- a/gcc/ira.cc
+++ b/gcc/ira.cc
@@ -5795,7 +5795,7 @@ ira (FILE *f)
        there is setjmp call because a variable not modified between
        setjmp and longjmp the compiler is required to preserve its
        value and sharing slots does not guarantee it.  */
-    flag_ira_share_spill_slots = FALSE;
+    flag_ira_share_spill_slots = false;
 
   ira_color ();
 
diff --git a/gcc/lra-assigns.cc b/gcc/lra-assigns.cc
index 3555926af6695642b0c7b685ecfabd5fa6d00a99..b8582dcafff81fa8de26e7c64451238aa87295bb 100644
--- a/gcc/lra-assigns.cc
+++ b/gcc/lra-assigns.cc
@@ -948,7 +948,7 @@ spill_for (int regno, bitmap spilled_pseudo_bitmap, bool first_p)
     }
   best_hard_regno = -1;
   best_cost = INT_MAX;
-  best_static_p = TRUE;
+  best_static_p = true;
   best_insn_pseudos_num = INT_MAX;
   smallest_bad_spills_num = INT_MAX;
   rclass_size = ira_class_hard_regs_num[rclass];
diff --git a/gcc/lra-constraints.cc b/gcc/lra-constraints.cc
index 0c6912d6e7dbd67d0560faad4d14e3fa0c8d2398..76a155e99c24c32c566f89c183cb2f3d0d67ffc7 100644
--- a/gcc/lra-constraints.cc
+++ b/gcc/lra-constraints.cc
@@ -1723,7 +1723,7 @@ simplify_operand_subreg (int nop, machine_mode reg_mode)
 	    = (enum reg_class) targetm.preferred_reload_class (reg, ALL_REGS);
 	  if (get_reload_reg (curr_static_id->operand[nop].type, innermode,
 			      reg, rclass, NULL,
-			      TRUE, "slow/invalid mem", &new_reg))
+			      true, "slow/invalid mem", &new_reg))
 	    {
 	      bool insert_before, insert_after;
 	      bitmap_set_bit (&lra_subreg_reload_pseudos, REGNO (new_reg));
@@ -1743,7 +1743,7 @@ simplify_operand_subreg (int nop, machine_mode reg_mode)
 	    = (enum reg_class) targetm.preferred_reload_class (reg, ALL_REGS);
 	  if (get_reload_reg (curr_static_id->operand[nop].type, mode, reg,
 			      rclass, NULL,
-			      TRUE, "slow/invalid mem", &new_reg))
+			      true, "slow/invalid mem", &new_reg))
 	    {
 	      bool insert_before, insert_after;
 	      bitmap_set_bit (&lra_subreg_reload_pseudos, REGNO (new_reg));
@@ -1828,7 +1828,7 @@ simplify_operand_subreg (int nop, machine_mode reg_mode)
 
       if (get_reload_reg (curr_static_id->operand[nop].type, reg_mode, reg,
 			  rclass, NULL,
-			  TRUE, "subreg reg", &new_reg))
+			  true, "subreg reg", &new_reg))
 	{
 	  bool insert_before, insert_after;
 	  bitmap_set_bit (&lra_subreg_reload_pseudos, REGNO (new_reg));
@@ -1902,7 +1902,7 @@ simplify_operand_subreg (int nop, machine_mode reg_mode)
 
       if (get_reload_reg (curr_static_id->operand[nop].type, mode, reg,
                           rclass, NULL,
-			  TRUE, "paradoxical subreg", &new_reg))
+			  true, "paradoxical subreg", &new_reg))
         {
 	  rtx subreg;
 	  bool insert_before, insert_after;
@@ -4578,7 +4578,7 @@ curr_insn_transform (bool check_only_p)
 		     lra-lives.cc.  */
 		  match_reload (i, goal_alt_matched[i], outputs, goal_alt[i],
 				&goal_alt_exclude_start_hard_regs[i], &before,
-				&after, TRUE);
+				&after, true);
 		}
 	      continue;
 	    }
@@ -4623,7 +4623,7 @@ curr_insn_transform (bool check_only_p)
 				/* This value does not matter for MODIFY.  */
 				GET_MODE_SIZE (GET_MODE (op)));
 	  else if (get_reload_reg (OP_IN, Pmode, *loc, rclass,
-				   NULL, FALSE,
+				   NULL, false,
 				   "offsetable address", &new_reg))
 	    {
 	      rtx addr = *loc;
@@ -6188,7 +6188,7 @@ split_reg (bool before_p, int original_regno, rtx_insn *insn,
     {
       lra_assert (next_usage_insns == NULL);
       usage_insn = to;
-      after_p = TRUE;
+      after_p = true;
     }
   else
     {
@@ -6299,7 +6299,7 @@ spill_hard_reg_in_range (int regno, enum reg_class rclass, rtx_insn *from, rtx_i
 	}
       if (insn != NEXT_INSN (to))
 	continue;
-      if (split_reg (TRUE, hard_regno, from, NULL, to))
+      if (split_reg (true, hard_regno, from, NULL, to))
 	return true;
     }
   return false;
diff --git a/gcc/sel-sched.cc b/gcc/sel-sched.cc
index cb1cf75bfe47e32beebcbcd3787b6514f5c1fac5..1925f4a9461cda85955a591ec9022fd559663e1b 100644
--- a/gcc/sel-sched.cc
+++ b/gcc/sel-sched.cc
@@ -2023,7 +2023,7 @@ moving_insn_creates_bookkeeping_block_p (insn_t insn,
     {
       if (sched_verbose >= 9)
 	sel_print ("no bookkeeping required: ");
-      return FALSE;
+      return false;
     }
 
   bbi = BLOCK_FOR_INSN (insn);
@@ -2032,7 +2032,7 @@ moving_insn_creates_bookkeeping_block_p (insn_t insn,
     {
       if (sched_verbose >= 9)
 	sel_print ("only one pred edge: ");
-      return TRUE;
+      return true;
     }
 
   bbt = BLOCK_FOR_INSN (through_insn);
@@ -2041,11 +2041,11 @@ moving_insn_creates_bookkeeping_block_p (insn_t insn,
     {
       FOR_EACH_EDGE (e2, ei2, bbi->preds)
 	{
-	  if (find_block_for_bookkeeping (e1, e2, TRUE))
+	  if (find_block_for_bookkeeping (e1, e2, true))
 	    {
 	      if (sched_verbose >= 9)
 		sel_print ("found existing block: ");
-	      return FALSE;
+	      return false;
 	    }
 	}
     }
@@ -2053,7 +2053,7 @@ moving_insn_creates_bookkeeping_block_p (insn_t insn,
   if (sched_verbose >= 9)
     sel_print ("would create bookkeeping block: ");
 
-  return TRUE;
+  return true;
 }
 
 /* Return true when the conflict with newly created implicit clobbers
@@ -4658,7 +4658,7 @@ find_place_for_bookkeeping (edge e1, edge e2, fence_t *fence_to_rewind)
   insn_t place_to_insert;
   /* Find a basic block that can hold bookkeeping.  If it can be found, do not
      create new basic block, but insert bookkeeping there.  */
-  basic_block book_block = find_block_for_bookkeeping (e1, e2, FALSE);
+  basic_block book_block = find_block_for_bookkeeping (e1, e2, false);
 
   if (book_block)
     {