Remove unused parameter from tree_swap_operands_p

diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index 603aff0..a774848 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -9159,13 +9159,13 @@  fold_binary_loc (location_t loc,
   /* If this is a commutative operation, and ARG0 is a constant, move it
      to ARG1 to reduce the number of tests below.  */
   if (commutative_tree_code (code)
-      && tree_swap_operands_p (arg0, arg1, true))
+      && tree_swap_operands_p (arg0, arg1))
     return fold_build2_loc (loc, code, type, op1, op0);
 
   /* Likewise if this is a comparison, and ARG0 is a constant, move it
      to ARG1 to reduce the number of tests below.  */
   if (kind == tcc_comparison
-      && tree_swap_operands_p (arg0, arg1, true))
+      && tree_swap_operands_p (arg0, arg1))
     return fold_build2_loc (loc, swap_tree_comparison (code), type, op1, op0);
 
   tem = generic_simplify (loc, code, type, op0, op1);
@@ -11271,7 +11271,7 @@  fold_ternary_loc (location_t loc, enum tree_code code, tree type,
   /* If this is a commutative operation, and OP0 is a constant, move it
      to OP1 to reduce the number of tests below.  */
   if (commutative_ternary_tree_code (code)
-      && tree_swap_operands_p (op0, op1, true))
+      && tree_swap_operands_p (op0, op1))
     return fold_build3_loc (loc, code, type, op1, op0, op2);
 
   tem = generic_simplify (loc, code, type, op0, op1, op2);
@@ -11400,7 +11400,7 @@  fold_ternary_loc (location_t loc, enum tree_code code, tree type,
       /* If the second operand is simpler than the third, swap them
 	 since that produces better jump optimization results.  */
       if (truth_value_p (TREE_CODE (arg0))
-	  && tree_swap_operands_p (op1, op2, false))
+	  && tree_swap_operands_p (op1, op2))
 	{
 	  location_t loc0 = expr_location_or (arg0, loc);
 	  /* See if this can be inverted.  If it can't, possibly because
diff --git a/gcc/fold-const.h b/gcc/fold-const.h
index ae37142..46dcd28 100644
--- a/gcc/fold-const.h
+++ b/gcc/fold-const.h
@@ -124,7 +124,7 @@  extern tree build_invariant_address (tree, tree, HOST_WIDE_INT);
 extern tree constant_boolean_node (bool, tree);
 extern tree div_if_zero_remainder (const_tree, const_tree);
 
-extern bool tree_swap_operands_p (const_tree, const_tree, bool);
+extern bool tree_swap_operands_p (const_tree, const_tree);
 extern enum tree_code swap_tree_comparison (enum tree_code);
 
 extern bool ptr_difference_const (tree, tree, HOST_WIDE_INT *);
diff --git a/gcc/genmatch.c b/gcc/genmatch.c
index b14034d..41951c5 100644
--- a/gcc/genmatch.c
+++ b/gcc/genmatch.c
@@ -2701,7 +2701,7 @@  dt_operand::gen_gimple_expr (FILE *f, int indent)
 	  gen_opname (child_opname0, 0);
 	  gen_opname (child_opname1, 1);
 	  fprintf_indent (f, indent,
-			  "if (tree_swap_operands_p (%s, %s, false))\n",
+			  "if (tree_swap_operands_p (%s, %s))\n",
 			  child_opname0, child_opname1);
 	  fprintf_indent (f, indent,
 			  "  std::swap (%s, %s);\n",
diff --git a/gcc/gimple-fold.c b/gcc/gimple-fold.c
index 5d46405..aabc8ff 100644
--- a/gcc/gimple-fold.c
+++ b/gcc/gimple-fold.c
@@ -4166,7 +4166,7 @@  fold_stmt_1 (gimple_stmt_iterator *gsi, bool inplace, tree (*valueize) (tree))
 	    {
 	      tree rhs1 = gimple_assign_rhs1 (stmt);
 	      tree rhs2 = gimple_assign_rhs2 (stmt);
-	      if (tree_swap_operands_p (rhs1, rhs2, false))
+	      if (tree_swap_operands_p (rhs1, rhs2))
 		{
 		  gimple_assign_set_rhs1 (stmt, rhs2);
 		  gimple_assign_set_rhs2 (stmt, rhs1);
@@ -4232,7 +4232,7 @@  fold_stmt_1 (gimple_stmt_iterator *gsi, bool inplace, tree (*valueize) (tree))
 	/* Canonicalize operand order.  */
 	tree lhs = gimple_cond_lhs (stmt);
 	tree rhs = gimple_cond_rhs (stmt);
-	if (tree_swap_operands_p (lhs, rhs, false))
+	if (tree_swap_operands_p (lhs, rhs))
 	  {
 	    gcond *gc = as_a <gcond *> (stmt);
 	    gimple_cond_set_lhs (gc, rhs);
diff --git a/gcc/gimple-match-head.c b/gcc/gimple-match-head.c
index 4eab90d..09f729f 100644
--- a/gcc/gimple-match-head.c
+++ b/gcc/gimple-match-head.c
@@ -151,7 +151,7 @@  gimple_resimplify2 (gimple_seq *seq,
   if (res_code->is_tree_code ()
       && (TREE_CODE_CLASS ((enum tree_code) *res_code) == tcc_comparison
 	  || commutative_tree_code (*res_code))
-      && tree_swap_operands_p (res_ops[0], res_ops[1], false))
+      && tree_swap_operands_p (res_ops[0], res_ops[1]))
     {
       std::swap (res_ops[0], res_ops[1]);
       if (TREE_CODE_CLASS ((enum tree_code) *res_code) == tcc_comparison)
@@ -212,7 +212,7 @@  gimple_resimplify3 (gimple_seq *seq,
   bool canonicalized = false;
   if (res_code->is_tree_code ()
       && commutative_ternary_tree_code (*res_code)
-      && tree_swap_operands_p (res_ops[0], res_ops[1], false))
+      && tree_swap_operands_p (res_ops[0], res_ops[1]))
     {
       std::swap (res_ops[0], res_ops[1]);
       canonicalized = true;
@@ -432,7 +432,7 @@  gimple_simplify (enum tree_code code, tree type,
      generation.  */
   if ((commutative_tree_code (code)
        || TREE_CODE_CLASS (code) == tcc_comparison)
-      && tree_swap_operands_p (op0, op1, false))
+      && tree_swap_operands_p (op0, op1))
     {
       std::swap (op0, op1);
       if (TREE_CODE_CLASS (code) == tcc_comparison)
@@ -466,7 +466,7 @@  gimple_simplify (enum tree_code code, tree type,
   /* Canonicalize operand order both for matching and fallback stmt
      generation.  */
   if (commutative_ternary_tree_code (code)
-      && tree_swap_operands_p (op0, op1, false))
+      && tree_swap_operands_p (op0, op1))
     std::swap (op0, op1);
 
   code_helper rcode;
diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c
index 5376ff9..f1dbb4c 100644
--- a/gcc/tree-ssa-dom.c
+++ b/gcc/tree-ssa-dom.c
@@ -1179,7 +1179,7 @@  record_equality (tree x, tree y, class const_and_copies *const_and_copies)
 {
   tree prev_x = NULL, prev_y = NULL;
 
-  if (tree_swap_operands_p (x, y, false))
+  if (tree_swap_operands_p (x, y))
     std::swap (x, y);
 
   /* Most of the time tree_swap_operands_p does what we want.  But there
diff --git a/gcc/tree-ssa-reassoc.c b/gcc/tree-ssa-reassoc.c
index 5dcf672..f781c5f 100644
--- a/gcc/tree-ssa-reassoc.c
+++ b/gcc/tree-ssa-reassoc.c
@@ -2980,7 +2980,7 @@  optimize_range_tests_var_bound (enum tree_code opcode, int first, int length,
       gimple_set_uid (g, uid);
       rhs2 = gimple_assign_lhs (g);
       gsi_insert_before (&gsi, g, GSI_SAME_STMT);
-      if (tree_swap_operands_p (rhs1, rhs2, false))
+      if (tree_swap_operands_p (rhs1, rhs2))
 	{
 	  std::swap (rhs1, rhs2);
 	  ccode = swap_tree_comparison (ccode);
diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c
index 00c1c23..e25f070 100644
--- a/gcc/tree-ssa-sccvn.c
+++ b/gcc/tree-ssa-sccvn.c
@@ -2580,10 +2580,10 @@  vn_nary_op_compute_hash (const vn_nary_op_t vno1)
 	&& commutative_tree_code (vno1->opcode))
        || (vno1->length == 3
 	   && commutative_ternary_tree_code (vno1->opcode)))
-      && tree_swap_operands_p (vno1->op[0], vno1->op[1], false))
+      && tree_swap_operands_p (vno1->op[0], vno1->op[1]))
     std::swap (vno1->op[0], vno1->op[1]);
   else if (TREE_CODE_CLASS (vno1->opcode) == tcc_comparison
-	   && tree_swap_operands_p (vno1->op[0], vno1->op[1], false))
+	   && tree_swap_operands_p (vno1->op[0], vno1->op[1]))
     {
       std::swap (vno1->op[0], vno1->op[1]);
       vno1->opcode = swap_tree_comparison  (vno1->opcode);
diff --git a/gcc/tree-ssa-threadedge.c b/gcc/tree-ssa-threadedge.c
index 170e456..534292c 100644
--- a/gcc/tree-ssa-threadedge.c
+++ b/gcc/tree-ssa-threadedge.c
@@ -564,7 +564,7 @@  simplify_control_stmt_condition_1 (edge e,
      example, op0 might be a constant while op1 is an
      SSA_NAME.  Failure to canonicalize will cause us to
      miss threading opportunities.  */
-  if (tree_swap_operands_p (op0, op1, false))
+  if (tree_swap_operands_p (op0, op1))
     {
       cond_code = swap_tree_comparison (cond_code);
       std::swap (op0, op1);