Remove not needed __builtin_expect due to malloc predictor.

2018-08-10  Martin Liska  <mliska@suse.cz>

	* libsupc++/new_op.cc (new): Remove __builtin_expect as malloc
        predictor can handle that.
	* libsupc++/new_opa.cc: Likewise.
	* libsupc++/new_opnt.cc (new): Likewise.

From-SVN: r263470

libstdc++-v3/ChangeLog

+2018-08-10  Martin Liska  <mliska@suse.cz>
+
+	* libsupc++/new_op.cc (new): Remove __builtin_expect as malloc
+        predictor can handle that.
+	* libsupc++/new_opa.cc: Likewise.
+	* libsupc++/new_opnt.cc (new): Likewise.
+
 2018-08-10  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 
 	PR target/85904

libstdc++-v3/libsupc++/new_op.cc

@@ -47,7 +47,7 @@ operator new (std::size_t sz) _GLIBCXX_THROW (std::bad_alloc)
   if (sz == 0)
     sz = 1;
 
-  while (__builtin_expect ((p = malloc (sz)) == 0, false))
+  while ((p = malloc (sz)) == 0)
     {
       new_handler handler = std::get_new_handler ();
       if (! handler)

libstdc++-v3/libsupc++/new_opa.cc

@@ -126,7 +126,7 @@ operator new (std::size_t sz, std::align_val_t al)
 #endif
 
   using __gnu_cxx::aligned_alloc;
-  while (__builtin_expect ((p = aligned_alloc (align, sz)) == 0, false))
+  while ((p = aligned_alloc (align, sz)) == 0)
     {
       new_handler handler = std::get_new_handler ();
       if (! handler)

libstdc++-v3/libsupc++/new_opnt.cc

@@ -40,7 +40,7 @@ operator new (std::size_t sz, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
   if (sz == 0)
     sz = 1;
 
-  while (__builtin_expect ((p = malloc (sz)) == 0, false))
+  while ((p = malloc (sz)) == 0)
     {
       new_handler handler = std::get_new_handler ();
       if (! handler)