re PR debug/66691 (ICE on valid code at -O3 with -g enabled in simplify_subreg, at...

[gcc.git] / gcc / tree-ssa-threadedge.c

diff --git a/gcc/tree-ssa-threadedge.c b/gcc/tree-ssa-threadedge.c
index acbbb671dccfdc6cde1f2f84cd3564273bdbfd91..f2e70cfe0b31209ebcdd270fd439779ff1aaf73b 100644 (file)
--- a/gcc/tree-ssa-threadedge.c
+++ b/gcc/tree-ssa-threadedge.c
@@ -22,22 +22,14 @@ along with GCC; see the file COPYING3.  If not see
 #include "system.h"
 #include "coretypes.h"
 #include "tm.h"
-#include "hash-set.h"
-#include "machmode.h"
-#include "vec.h"
-#include "double-int.h"
-#include "input.h"
 #include "alias.h"
 #include "symtab.h"
-#include "wide-int.h"
-#include "inchash.h"
 #include "tree.h"
 #include "fold-const.h"
 #include "flags.h"
 #include "tm_p.h"
 #include "predict.h"
 #include "hard-reg-set.h"
-#include "input.h"
 #include "function.h"
 #include "dominance.h"
 #include "basic-block.h"
@@ -47,7 +39,6 @@ along with GCC; see the file COPYING3.  If not see
 #include "tree-ssa-alias.h"
 #include "internal-fn.h"
 #include "gimple-expr.h"
-#include "is-a.h"
 #include "gimple.h"
 #include "gimple-iterator.h"
 #include "gimple-ssa.h"
@@ -544,11 +535,8 @@ simplify_control_stmt_condition (edge e,
         miss threading opportunities.  */
       if (tree_swap_operands_p (op0, op1, false))
        {
-         tree tmp;
          cond_code = swap_tree_comparison (cond_code);
-         tmp = op0;
-         op0 = op1;
-         op1 = tmp;
+         std::swap (op0, op1);
        }
 
       /* Stuff the operator and operands into our dummy conditional